/* CSS Custom Properties */
:root {
  /* Colors - Light Theme */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #e9ecef;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f3f5;
  --color-surface-active: #e9ecef;
  
  --color-text: #212529;
  --color-text-secondary: #495057;
  --color-text-muted: #868e96;
  
  --color-border: #dee2e6;
  --color-border-light: #e9ecef;
  
  --color-primary: #228be6;
  --color-primary-hover: #1c7ed6;
  --color-primary-light: #e7f5ff;
  
  --color-success: #40c057;
  --color-warning: #fab005;
  --color-error: #fa5252;
  
  --color-starred: #fab005;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  
  /* Layout */
  --sidebar-width: 280px;
  --header-height: 168px; /* fallback; updated dynamically to match real header height */
  --article-list-width: 400px;
  
  /* Font Style (sans, sans-serif, monospace) */
  --font-style: sans;
  
  /* Font Size Multiplier */
  --font-scale: 1;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #1a1b1e;
  --color-bg-secondary: #25262b;
  --color-bg-tertiary: #2c2e33;
  --color-surface: #25262b;
  --color-surface-hover: #2c2e33;
  --color-surface-active: #373a40;
  
  --color-text: #c1c2c5;
  --color-text-secondary: #909296;
  --color-text-muted: #5c5f66;
  
  --color-border: #373a40;
  --color-border-light: #2c2e33;
  
  --color-primary: #339af0;
  --color-primary-hover: #228be6;
  --color-primary-light: #1864ab;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
}

[data-theme="light-earth"] {
  --color-bg: #f7f3ec;
  --color-bg-secondary: #efe7da;
  --color-bg-tertiary: #e5d8c7;
  --color-surface: #fbf7f1;
  --color-surface-hover: #f1e7d7;
  --color-surface-active: #e7d8c5;
  
  --color-text: #3a2f25;
  --color-text-secondary: #5a4b3d;
  --color-text-muted: #8a7a6a;
  
  --color-border: #ded2c2;
  --color-border-light: #e9dfd1;
  
  --color-primary: #8a6b3f;
  --color-primary-hover: #7a5e36;
  --color-primary-light: #f2e7d7;
  
  --color-success: #5a8f4e;
  --color-warning: #c58b3c;
  --color-error: #c75c4a;
  
  --color-starred: #c58b3c;
}

[data-theme="dark-earth"] {
  --color-bg: #1f1b16;
  --color-bg-secondary: #2a241d;
  --color-bg-tertiary: #332b22;
  --color-surface: #2a241d;
  --color-surface-hover: #352d24;
  --color-surface-active: #40362b;
  
  --color-text: #e4d7c8;
  --color-text-secondary: #c9b8a6;
  --color-text-muted: #9b8a78;
  
  --color-border: #3a3228;
  --color-border-light: #2f281f;
  
  --color-primary: #caa36a;
  --color-primary-hover: #b99158;
  --color-primary-light: #5a4226;
  
  --color-success: #6f9b5a;
  --color-warning: #d1a25f;
  --color-error: #d1745f;
  
  --color-starred: #d1a25f;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.45);
}

[data-theme="light-red"] {
  --color-bg: #f8f1ed;
  --color-bg-secondary: #f1e2dc;
  --color-bg-tertiary: #e7d3ca;
  --color-surface: #fdf8f5;
  --color-surface-hover: #f2e1d9;
  --color-surface-active: #e8d2c9;
  
  --color-text: #3b2c28;
  --color-text-secondary: #5e4a45;
  --color-text-muted: #8d7772;
  
  --color-border: #e2cfc6;
  --color-border-light: #eadbd3;
  
  --color-primary: #a95a4e;
  --color-primary-hover: #964f45;
  --color-primary-light: #f4dfd8;
  
  --color-success: #7c8f5a;
  --color-warning: #c88b4f;
  --color-error: #c4574a;
  
  --color-starred: #c88b4f;
}

[data-theme="dark-red"] {
  --color-bg: #241916;
  --color-bg-secondary: #30211d;
  --color-bg-tertiary: #3b2823;
  --color-surface: #30211d;
  --color-surface-hover: #3a2722;
  --color-surface-active: #462f29;
  
  --color-text: #ead9d3;
  --color-text-secondary: #d2bcb4;
  --color-text-muted: #a48981;
  
  --color-border: #42302b;
  --color-border-light: #352621;
  
  --color-primary: #d08574;
  --color-primary-hover: #bb7566;
  --color-primary-light: #5a3a32;
  
  --color-success: #7f9b64;
  --color-warning: #d29a64;
  --color-error: #d0796b;
  
  --color-starred: #d29a64;
}

[data-theme="light-green"] {
  --color-bg: #f3f6ef;
  --color-bg-secondary: #e5ecd9;
  --color-bg-tertiary: #d9e2c9;
  --color-surface: #f9fbf6;
  --color-surface-hover: #e6edda;
  --color-surface-active: #d8e1c8;
  
  --color-text: #2f3a2a;
  --color-text-secondary: #4b5a43;
  --color-text-muted: #7b8872;
  
  --color-border: #d0dbc2;
  --color-border-light: #dde5d1;
  
  --color-primary: #6f8b56;
  --color-primary-hover: #5f7a4b;
  --color-primary-light: #e4ecd6;
  
  --color-success: #5f8b55;
  --color-warning: #c39a53;
  --color-error: #b95b4b;
  
  --color-starred: #c39a53;
}

[data-theme="dark-green"] {
  --color-bg: #1e2219;
  --color-bg-secondary: #292f22;
  --color-bg-tertiary: #323929;
  --color-surface: #292f22;
  --color-surface-hover: #333a29;
  --color-surface-active: #3e4631;
  
  --color-text: #d7e1cd;
  --color-text-secondary: #bcc9ae;
  --color-text-muted: #8c9a7f;
  
  --color-border: #3a4130;
  --color-border-light: #2f3527;
  
  --color-primary: #8fb06d;
  --color-primary-hover: #7b9b5e;
  --color-primary-light: #4b5639;
  
  --color-success: #7f9b64;
  --color-warning: #d1a15e;
  --color-error: #c86c5d;
  
  --color-starred: #d1a15e;
}

[data-theme="light-teal"] {
  --color-bg: #eef6f5;
  --color-bg-secondary: #dfece9;
  --color-bg-tertiary: #cfe0dc;
  --color-surface: #f6fbfa;
  --color-surface-hover: #dfece8;
  --color-surface-active: #d0e0db;
  
  --color-text: #2a3a37;
  --color-text-secondary: #435a55;
  --color-text-muted: #738682;
  
  --color-border: #c7dad5;
  --color-border-light: #d7e5e1;
  
  --color-primary: #4f8f87;
  --color-primary-hover: #447c75;
  --color-primary-light: #d9ede8;
  
  --color-success: #4f8f78;
  --color-warning: #bf9150;
  --color-error: #b65d4c;
  
  --color-starred: #bf9150;
}

[data-theme="dark-teal"] {
  --color-bg: #18211f;
  --color-bg-secondary: #222d2a;
  --color-bg-tertiary: #2c3834;
  --color-surface: #222d2a;
  --color-surface-hover: #2c3834;
  --color-surface-active: #384640;
  
  --color-text: #d4e1dd;
  --color-text-secondary: #bacbc5;
  --color-text-muted: #879a94;
  
  --color-border: #33423d;
  --color-border-light: #283531;
  
  --color-primary: #6fb2a8;
  --color-primary-hover: #5f9b93;
  --color-primary-light: #3d534f;
  
  --color-success: #6fa889;
  --color-warning: #c29a5e;
  --color-error: #c26a5a;
  
  --color-starred: #c29a5e;
}

[data-theme="light-blue"] {
  --color-bg: #f0f4f8;
  --color-bg-secondary: #e1e8f0;
  --color-bg-tertiary: #d2ddea;
  --color-surface: #f7f9fc;
  --color-surface-hover: #e2e9f2;
  --color-surface-active: #d4ddeb;
  
  --color-text: #293340;
  --color-text-secondary: #465265;
  --color-text-muted: #758196;
  
  --color-border: #c9d4e2;
  --color-border-light: #d8e0ea;
  
  --color-primary: #4f73a6;
  --color-primary-hover: #436596;
  --color-primary-light: #dee7f2;
  
  --color-success: #5a8a6f;
  --color-warning: #c08b4e;
  --color-error: #b85c4c;
  
  --color-starred: #c08b4e;
}

[data-theme="dark-blue"] {
  --color-bg: #1c2230;
  --color-bg-secondary: #262e3e;
  --color-bg-tertiary: #30384a;
  --color-surface: #262e3e;
  --color-surface-hover: #30384a;
  --color-surface-active: #3a4356;
  
  --color-text: #d7dfeb;
  --color-text-secondary: #bcc7d6;
  --color-text-muted: #8996a8;
  
  --color-border: #353f53;
  --color-border-light: #2a3344;
  
  --color-primary: #7ea2d6;
  --color-primary-hover: #6e91c2;
  --color-primary-light: #3d4a64;
  
  --color-success: #6a9a7c;
  --color-warning: #c59a5f;
  --color-error: #c47060;
  
  --color-starred: #c59a5f;
}

[data-theme="light-purple"] {
  --color-bg: #f5f2f8;
  --color-bg-secondary: #e8e1ef;
  --color-bg-tertiary: #dccfe7;
  --color-surface: #faf8fc;
  --color-surface-hover: #e9e1f0;
  --color-surface-active: #dccfe6;
  
  --color-text: #342b3d;
  --color-text-secondary: #534660;
  --color-text-muted: #82748f;
  
  --color-border: #d4cbe0;
  --color-border-light: #e2dae9;
  
  --color-primary: #7a5aa6;
  --color-primary-hover: #6a4f94;
  --color-primary-light: #e8def4;
  
  --color-success: #6a8a64;
  --color-warning: #c39254;
  --color-error: #c26052;
  
  --color-starred: #c39254;
}

[data-theme="dark-purple"] {
  --color-bg: #241d2d;
  --color-bg-secondary: #2f263b;
  --color-bg-tertiary: #3a2f49;
  --color-surface: #2f263b;
  --color-surface-hover: #392e46;
  --color-surface-active: #453758;
  
  --color-text: #e4d9ef;
  --color-text-secondary: #c9b7db;
  --color-text-muted: #9b89ae;
  
  --color-border: #3c3249;
  --color-border-light: #31283d;
  
  --color-primary: #b58ad8;
  --color-primary-hover: #a378c4;
  --color-primary-light: #4c3a60;
  
  --color-success: #7a9c73;
  --color-warning: #d0a060;
  --color-error: #d07b6c;
  
  --color-starred: #d0a060;
}

[data-spacing="compact"] {
  --spacing-xs: 3px;
  --spacing-sm: 6px;
  --spacing-md: 12px;
  --spacing-lg: 18px;
  --spacing-xl: 26px;
}

[data-spacing="comfortable"] {
  --spacing-xs: 6px;
  --spacing-sm: 10px;
  --spacing-md: 20px;
  --spacing-lg: 30px;
  --spacing-xl: 40px;
}

[data-font="inter"] {
  --font-sans: 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

[data-font="roboto"] {
  --font-sans: 'Roboto', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

[data-font="open-sans"] {
  --font-sans: 'Open Sans', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="lato"] {
  --font-sans: 'Lato', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="montserrat"] {
  --font-sans: 'Montserrat', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="poppins"] {
  --font-sans: 'Poppins', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="source-sans-3"] {
  --font-sans: 'Source Sans 3', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="nunito"] {
  --font-sans: 'Nunito', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="work-sans"] {
  --font-sans: 'Work Sans', 'Segoe UI', Roboto, Arial, sans-serif;
}

[data-font="raleway"] {
  --font-sans: 'Raleway', 'Segoe UI', Roboto, Arial, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: calc(16px * var(--font-scale, 1));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  overscroll-behavior-y: none;
}

html[data-font-style="sans"] {
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

html[data-font-style="sans-serif"] {
  --font-sans: 'Georgia', 'Garamond', serif;
}

html[data-font-style="monospace"] {
  --font-sans: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
}

html[data-font-size="small"] {
  --font-scale: 0.875;
}

html[data-font-size="normal"] {
  --font-scale: 1;
}

html[data-font-size="large"] {
  --font-scale: 1.125;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
  overscroll-behavior-y: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
  color: var(--color-primary-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.text-muted {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--color-surface-hover);
}

.btn:active {
  background-color: var(--color-surface-active);
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  color: white;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-icon {
  padding: var(--spacing-sm);
  border: none;
  background: transparent;
}

.btn-icon:hover {
  background-color: var(--color-surface-hover);
}

/* Spinning animation for refresh button */
.btn.spinning svg {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-block {
  width: 100%;
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-group small {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.input, .select, input[type="text"], input[type="email"], input[type="password"], input[type="url"], input[type="number"], input[type="search"], select, textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  user-select: text;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
}

.input:focus, .select:focus, input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 139, 230, 0.1);
  transform: translateY(-1px);
}

.input:hover, .select:hover, input:hover, select:hover, textarea:hover {
  border-color: var(--color-text-muted);
}

.select-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.form-error {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-error);
  background-color: rgba(250, 82, 82, 0.1);
  border-radius: var(--radius-sm);
}

.form-error:empty {
  display: none;
}

/* Views */
.view {
  min-height: 100vh;
}

/* Auth View */
.auth-view {
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: center;
  min-height: 100vh;
  overflow: hidden;
  background: var(--color-bg);
}

/* Landing Page Layout */
.landing-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  min-height: 100dvh;
}

.landing-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--spacing-xl) calc(var(--spacing-xl) * 2);
  background: linear-gradient(
    205deg,
    var(--color-primary) 0%,
    color-mix(in srgb, var(--color-primary) 10%, #1a1b2e) 100%
  );
  color: #ffffff;
  position: relative;
  overflow: hidden;
}


.landing-hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.landing-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.landing-logo {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin: 0;
}

.landing-tagline {
  font-size: var(--font-size-xl);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin: 0;
}

.landing-headline {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 var(--spacing-lg) 0;
  color: #ffffff;
}

.landing-subheadline {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  opacity: 0.9;
  margin: 0 0 calc(var(--spacing-xl) * 1.5) 0;
  max-width: 500px;
}

.landing-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.landing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.landing-feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
}

.landing-feature-icon svg {
  stroke: #ffffff;
}

.landing-feature-text h3 {
  font-size: var(--font-size-base);
  font-weight: 700;
  margin: 0 0 var(--spacing-xs) 0;
  color: #ffffff;
}

.landing-feature-text p {
  font-size: var(--font-size-sm);
  margin: 0;
  opacity: 0.85;
  line-height: 1.5;
}

.landing-quote {
  margin-top: var(--spacing-xl);
  padding-left: var(--spacing-lg);
  border-left: 3px solid rgba(255,255,255,0.3);
}

.landing-quote blockquote {
  font-size: var(--font-size-xl);
  font-weight: 600;
  font-style: italic;
  margin: 0;
  opacity: 0.95;
}

.landing-hero-footer {
  position: relative;
  z-index: 1;
  padding-top: var(--spacing-lg);
}

.landing-hero-footer p {
  font-size: var(--font-size-sm);
  opacity: 0.6;
  margin: 0;
  letter-spacing: 0.02em;
}

/* Auth Side */
.landing-auth {
  display: flex;
  align-items: stretch;
  padding: 0px;
  background: var(--color-bg);
}

.auth-background {
  display: none;
}

.auth-container {
  display: none;
}

.auth-card {
  width: 100%;
  background: var(--color-surface);
  border-radius:0px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
  padding: 50px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-logo {
  display: none;
}

.auth-header h1,
.auth-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--spacing-xs) 0;
  letter-spacing: -0.02em;
}

.auth-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  margin: 0;
}

.auth-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xs);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.auth-tab {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab:hover {
  color: var(--color-text);
  background-color: var(--color-surface-hover);
}

.auth-tab.active {
  color: var(--color-primary);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  width: 100%;
}

.form-group {
  width: 100%;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: var(--spacing-md);
  color: var(--color-text-muted);
  pointer-events: none;
  transition: color var(--transition-fast);
}

.input-wrapper input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md) calc(var(--spacing-lg) * 2 + 18px);
  font-size: var(--font-size-base);
  background-color: rgba(34, 139, 230, 0.05);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.input-wrapper input::placeholder {
  color: var(--color-text-muted);
}

.input-wrapper input:hover {
  background-color: rgba(34, 139, 230, 0.08);
}

.input-wrapper input:focus {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  outline: none;
}

.input-wrapper input:focus + .input-icon,
.input-wrapper:focus-within .input-icon {
  color: var(--color-primary);
}

.form-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.auth-submit {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  border: none;
  box-shadow: 0 4px 12px rgba(34, 139, 230, 0.3);
  transition: all var(--transition-normal);
}

.auth-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(34, 139, 230, 0.4);
}

.auth-submit:active {
  transform: translateY(0);
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
}

.auth-footer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Landing Page Responsive */
@media (max-width: 1024px) {
  .landing-hero {
    padding: var(--spacing-xl);
  }
  
  .landing-headline {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
  }
}

@media (max-width: 768px) {
  .landing-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  
  .landing-hero {
    padding: var(--spacing-lg);
    /* min-height: auto; */
  }
  
  .landing-hero-content {
    max-width: 100%;
  }
  
  .landing-headline {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
  }
  
  .landing-subheadline {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }
  
  .landing-features {
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }
  
  .landing-feature-icon {
    width: 40px;
    height: 40px;
  }
  
  .landing-feature-icon svg {
    width: 20px;
    height: 20px;
  }
  
  .landing-quote {
    display: none;
  }
  
  .landing-hero-footer {
    display: none;
  }
  
  .landing-auth {
    padding: var(--spacing-lg);
  }
  
  .auth-card {
    padding: var(--spacing-lg);
    box-shadow: none;
    border: none;
    background: transparent;
  }
}

@media (max-width: 640px) {
  .landing-hero {
    padding: var(--spacing-md);
  }
  
  .landing-brand {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .landing-headline {
    font-size: 1.5rem;
  }
  
  .landing-subheadline {
    font-size: var(--font-size-sm);
  }
  
  .landing-features {
    gap: var(--spacing-sm);
  }
  
  .landing-feature-text h3 {
    font-size: var(--font-size-sm);
  }
  
  .landing-feature-text p {
    font-size: var(--font-size-xs);
  }
  
  .auth-card {
    padding: var(--spacing-md);
  }
  
  .auth-header h1,
  .auth-header h2 {
    font-size: 1.5rem;
  }
}

/* Main App Layout */
#main-view {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  gap: var(--spacing-md);
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header-center {
  flex: 1;
  max-width: 500px;
  margin: 0 var(--spacing-lg);
}

.app-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.search-container {
  width: 100%;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border: 1px solid transparent;
}

.search-input:focus {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
}

/* User Menu Dropdown */
.user-menu {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-xs);
  min-width: 180px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
}

.dropdown-header {
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 500;
}

.dropdown hr {
  border: none;
  border-top: 1px solid var(--color-border);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  text-align: left;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
}

.dropdown-item:hover {
  background-color: var(--color-surface-hover);
}

/* App Content */
.app-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background-color: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.sidebar.collapsed {
  transform: translateX(-100%);
  position: absolute;
  width: 0;
}

.app-content > .visualizer-panel {
  width: 100%;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-header h2 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.sidebar-divider {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--spacing-sm) 0;
}

/* Feed Navigation */
.feed-nav {
  padding: var(--spacing-sm);
}

.feed-item-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  position: relative;
}

.feed-item-wrapper:hover .feed-actions {
  opacity: 1;
  pointer-events: auto;
}

.feed-item {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  text-align: left;
  color: var(--color-text);
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.feed-item:hover {
  background-color: var(--color-surface-hover);
}

.feed-item-wrapper:hover .feed-item {
  transform: translateX(2px);
}

.feed-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.feed-item.active {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 500;
}

.feed-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.feed-icon img {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
}

.feed-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.feed-count {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  background-color: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.feed-item.active .feed-count {
  background-color: var(--color-primary);
  color: white;
}

/* Feeds List */
.feeds-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-sm);
}

.feed-category-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xs) var(--spacing-md);
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
}

.feed-category-toggle:hover {
  color: var(--color-text);
}

.feed-category-icon {
  transition: transform var(--transition-fast);
}

.feed-category-icon.collapsed {
  transform: rotate(-90deg);
}

.feed-item-wrapper .feed-actions {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.feed-item-wrapper:hover .feed-actions {
  opacity: 1;
  pointer-events: auto;
}

.feed-actions .btn {
  padding: var(--spacing-xs);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Article List Panel */
.article-list-panel {
  width: var(--article-list-width);
  min-width: 300px;
  height: calc(100vh - var(--header-height));
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
}

/* Hide list panel when viewing article detail on mobile */
.article-list-panel.hidden-on-narrow {
  display: none !important;
  width: 0 !important;
  min-width: 0 !important;
}

/* Hide list panel when visualizer is active */
.article-list-panel.hidden-on-visualizer {
  display: none !important;
  width: 0 !important;
  min-width: 0 !important;
}

/* Hide list panel when playing radio - only on wide screens where visualizer fits */
@media (min-width: 1200px) {
  .article-list-panel.hidden-on-radio {
    display: none !important;
    width: 0 !important;
    min-width: 0 !important;
  }
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
  position: sticky;
  top: 0;
  z-index: 10;
}

.panel-header h2 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Articles Container */
.articles-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden; /* prevent horizontal scrollbar and artifacts */
}

.article-item {
  display: block;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.article-item:hover {
  background-color: var(--color-surface-hover);
  transform: translateX(2px);
}

.article-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.article-item.active {
  background-color: var(--color-primary-light);
}

.article-item.unread {
  border-left: 3px solid var(--color-primary);
  background-color: rgba(34, 139, 230, 0.03);
}

.article-item-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.article-item-title {
  flex: 1;
  min-width: 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-item.unread .article-item-title {
  font-weight: 600;
}

.article-item-icons {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.article-item-starred {
  color: var(--color-starred);
  flex-shrink: 0;
}

.article-item-downloaded {
  color: var(--color-success);
  flex-shrink: 0;
}

.article-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  overflow: hidden;
}

.article-item-feed {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 150px;
}

.article-item-date {
  white-space: nowrap;
}

.article-item-preview {
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
  text-align: center;
  animation: fadeIn 0.5s ease;
}

.empty-state svg {
  margin-bottom: var(--spacing-md);
  opacity: 0.3;
}

.empty-state p {
  font-size: var(--font-size-base);
  margin-top: var(--spacing-sm);
}

/* Loading Indicator */
.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  gap: var(--spacing-md);
  color: var(--color-text-muted);
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-sm);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Article Detail Panel */
.article-detail-panel {
  flex: 1;
  width: 0; /* Allow flex to control width on desktop */
  min-width: 0;
  height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--color-surface);
}

/* When list is hidden, detail takes full width */
.article-list-panel.hidden-on-narrow + .visualizer-panel + .article-detail-panel,
.article-list-panel.hidden-on-narrow ~ .article-detail-panel {
  width: 100% !important;
  flex: 1 !important;
}

@media (min-width: 1025px) {
  .article-list-panel.hidden-on-radio + .visualizer-panel + .article-detail-panel,
  .article-list-panel.hidden-on-radio ~ .article-detail-panel {
    width: 100% !important;
    flex: 1 !important;
  }
}

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.detail-actions .btn-icon.starred svg {
  fill: var(--color-starred);
  stroke: var(--color-starred);
  animation: starPop 0.3s ease;
}

@keyframes starPop {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* Article Content */
.article-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--spacing-lg) var(--spacing-xl);
  width: 100%;
  user-select: text;
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
}

.article-content h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.article-body {
  font-size: var(--font-size-base);
  line-height: 1.8;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body p {
  margin-bottom: var(--spacing-md);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body h2, .article-body h3, .article-body h4 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body img {
  max-width: 100%;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
  display: block;
}

.article-body a {
  color: var(--color-primary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body blockquote {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--color-primary);
  color: var(--color-text-secondary);
  font-style: italic;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body ul, .article-body ol {
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-lg);
}

.article-body li {
  margin-bottom: var(--spacing-xs);
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 2px 6px;
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-body pre {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  overflow-x: auto;
  max-width: 100%;
  word-wrap: normal;
  white-space: pre;
}

.article-body pre code {
  padding: 0;
  background: none;
  word-wrap: normal;
  white-space: pre;
}

.article-body iframe,
.article-body video {
  max-width: 100%;
  height: auto;
}

.article-body table {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  display: block;
  border-collapse: collapse;
}

.article-body table td,
.article-body table th {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-border);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.article-generated-art {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.article-generated-art img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  display: block;
}

.article-images {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.article-images h3 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-sm);
}

.image-grid img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.image-grid img:hover {
  transform: scale(1.05);
}

/* AI Panel */
.ai-panel {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 400px;
  max-height: 60%;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  border-radius: var(--radius-lg) 0 0 0;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  z-index: 50;
}

.ai-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg) 0 0 0;
}

.ai-panel-header h3 {
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.ai-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.ai-message {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.ai-message.loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.ai-message strong {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--color-primary);
}

.ai-input-container {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.ai-input {
  flex: 1;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.2s ease;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  margin: var(--spacing-md);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-small {
  max-width: 400px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* Settings Sections */
.settings-section {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.settings-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.settings-section h3 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.status-indicator {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.status-indicator.success {
  background-color: rgba(64, 192, 87, 0.1);
  color: var(--color-success);
}

.status-indicator.error {
  background-color: rgba(250, 82, 82, 0.1);
  color: var(--color-error);
}

/* TTS Player */
.tts-player {
  position: fixed;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 200;
  min-width: 300px;
}

.tts-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.tts-info {
  flex: 1;
}

#tts-title {
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.tts-progress {
  height: 4px;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.tts-progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--color-primary);
  transition: width 100ms linear;
}

/* Discover View */
.discover-view {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  min-height: calc(100vh - var(--header-height));
  overflow-y: auto;
  overflow-x: hidden;
}

.discover-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.discover-header h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
}

.discover-header p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.discover-search {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.discover-search input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.discover-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.discover-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.discover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}

.discover-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.discover-card img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.discover-card h4 {
  font-size: var(--font-size-base);
}

.discover-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.discover-card .btn {
  width: 100%;
  margin-top: auto;
}

.discover-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.discover-results {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.discover-result {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.discover-result img {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.discover-result-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.discover-result-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.discover-item {
  font-weight: 600;
}

/* Radio-specific styles */
.radio-icon,
.radio-icon-small {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.radio-icon {
  width: 100%;
  aspect-ratio: 1 / 1;
}

.radio-icon-small {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
}

.radio-card h4,
.radio-result strong {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.radio-card-actions {
  display: grid;
  gap: var(--spacing-xs);
  margin-top: auto;
}

.radio-card-actions .btn {
  width: 100%;
}

/* Podcast Player */
.podcast-player {
  background: linear-gradient(135deg, 
    rgba(var(--player-gradient-start), 0.95) 0%, 
    rgba(var(--player-gradient-end), 0.9) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 20px 24px;
  width: 100%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12),
              0 2px 8px rgba(0, 0, 0, 0.08),
              inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* Animated gradient background */
.podcast-player::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, 
    rgba(52, 152, 219, 0.1) 0%, 
    transparent 70%);
  animation: pulseGlow 4s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes pulseGlow {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
  50% { transform: translate(10px, 10px) scale(1.1); opacity: 0.8; }
}

.podcast-player > * {
  position: relative;
  z-index: 1;
}

.app-header .podcast-player {
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1),
              0 1px 4px rgba(0, 0, 0, 0.06);
}

/* Theme-specific gradient colors */
:root {
  --player-gradient-start: 248, 250, 252;
  --player-gradient-end: 241, 245, 249;
}

[data-theme="dark"] {
  --player-gradient-start: 30, 33, 39;
  --player-gradient-end: 37, 41, 48;
}

[data-theme="dark-red"] {
  --player-gradient-start: 33, 25, 27;
  --player-gradient-end: 41, 33, 35;
}

[data-theme="dark-blue"] {
  --player-gradient-start: 25, 28, 35;
  --player-gradient-end: 33, 37, 44;
}

[data-theme="dark-purple"] {
  --player-gradient-start: 31, 26, 35;
  --player-gradient-end: 39, 34, 44;
}

[data-theme="light-earth"] {
  --player-gradient-start: 247, 243, 236;
  --player-gradient-end: 237, 230, 218;
}

[data-theme="dark-earth"] {
  --player-gradient-start: 30, 33, 25;
  --player-gradient-end: 37, 41, 33;
}

[data-theme="light-green"] {
  --player-gradient-start: 243, 246, 239;
  --player-gradient-end: 229, 236, 217;
}

[data-theme="dark-green"] {
  --player-gradient-start: 30, 34, 25;
  --player-gradient-end: 41, 47, 34;
}

[data-theme="light-teal"] {
  --player-gradient-start: 238, 246, 245;
  --player-gradient-end: 223, 236, 233;
}

[data-theme="dark-teal"] {
  --player-gradient-start: 24, 33, 31;
  --player-gradient-end: 34, 45, 42;
}

.podcast-player-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  gap: 20px;
  align-items: center;
}

@media (max-width: 1200px) {
  .podcast-player-row {
    grid-template-columns: 1fr auto auto;
    gap: 16px;
  }
}

@media (max-width: 900px) {
  .podcast-player-row {
    grid-template-columns: 1fr;
    row-gap: 16px;
  }
}

@media (max-width: 480px) {
  .podcast-player {
    padding: 16px;
    border-radius: 12px;
  }
  
  .podcast-player-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  /* Mobile optimization: larger tap targets */
  .podcast-player-controls .btn-icon {
    width: 56px;
    height: 56px;
  }
  
  .podcast-player-controls .btn-small {
    height: 40px;
    min-width: 48px;
    font-size: 13px;
  }
  
  .podcast-player-actions .btn-small {
    height: 36px;
    padding: 0 14px;
    font-size: 13px;
  }
  
  .podcast-progress-bar {
    height: 10px;
  }
  
  .podcast-progress-bar:active {
    height: 14px;
  }
}

.podcast-player-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.podcast-player-title {
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.podcast-player-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
}

.podcast-player-meta {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.podcast-player-duration {
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.podcast-player-progress {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  min-width: 200px;
}

#podcast-current-time {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  min-width: 42px;
  text-align: right;
}

@media (max-width: 1200px) {
  .podcast-player-progress {
    min-width: auto;
    order: 4;
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .podcast-player-progress {
    grid-column: 1;
  }
}

@media (max-width: 480px) {
  .podcast-player-progress {
    gap: 10px;
  }
}

.podcast-progress-bar {
  height: 8px;
  background: linear-gradient(to right,
    rgba(var(--primary-rgb), 0.15),
    rgba(var(--primary-rgb), 0.08));
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.podcast-progress-bar:hover {
  height: 10px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15),
              0 0 0 4px rgba(var(--primary-rgb), 0.1);
}

.podcast-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, 
    var(--color-primary) 0%,
    var(--color-primary-hover) 100%);
  transition: width 100ms linear;
  position: relative;
  border-radius: 12px;
  box-shadow: 0 0 8px rgba(var(--primary-rgb), 0.4);
}

.podcast-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  transform: translateX(50%);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.podcast-progress-bar:hover .podcast-progress-fill::after {
  opacity: 1;
}

/* Primary color RGB for progress bar effects */
:root {
  --primary-rgb: 34, 139, 230;
}

[data-theme="dark"] {
  --primary-rgb: 51, 154, 240;
}

[data-theme="dark-red"] {
  --primary-rgb: 208, 121, 107;
}

[data-theme="dark-blue"] {
  --primary-rgb: 100, 149, 237;
}

[data-theme="dark-purple"] {
  --primary-rgb: 186, 135, 206;
}

[data-theme="light-earth"] {
  --primary-rgb: 127, 155, 100;
}

[data-theme="dark-earth"] {
  --primary-rgb: 143, 176, 109;
}

[data-theme="light-green"] {
  --primary-rgb: 111, 139, 86;
}

[data-theme="dark-green"] {
  --primary-rgb: 143, 176, 109;
}

[data-theme="light-teal"] {
  --primary-rgb: 79, 143, 135;
}

[data-theme="dark-teal"] {
  --primary-rgb: 111, 178, 168;
}

/* Playing state animation */
.podcast-player.playing {
  box-shadow: 0 8px 32px rgba(var(--primary-rgb), 0.15),
              0 2px 8px rgba(0, 0, 0, 0.08),
              inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.podcast-player.playing::before {
  animation-play-state: running;
}

/* Pulse animation for play button when playing */
@keyframes playPulse {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.4),
                0 2px 4px rgba(0, 0, 0, 0.1);
  }
  50% {
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.6),
                0 3px 6px rgba(0, 0, 0, 0.15);
  }
}

.podcast-player.playing .podcast-player-controls .btn-icon {
  animation: playPulse 2s ease-in-out infinite;
}

/* Smooth transitions for all interactive elements */
.podcast-player button,
.podcast-player-progress,
.podcast-progress-bar,
.podcast-progress-fill {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Ripple effect on button click */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.podcast-player button {
  position: relative;
  overflow: hidden;
}

.podcast-player button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
}

.podcast-player button:active::before {
  animation: ripple 0.6s ease-out;
}

.podcast-player-controls,
.podcast-player-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

@media (max-width: 1200px) {
  .podcast-player-controls {
    order: 2;
  }
  
  .podcast-player-actions {
    order: 3;
    flex-wrap: wrap;
    gap: 8px;
  }
}

@media (max-width: 900px) {
  .podcast-player-controls {
    width: 100%;
    justify-content: center;
    order: 2;
  }
  
  .podcast-player-actions {
    width: 100%;
    justify-content: flex-start;
    order: 3;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .podcast-player-controls {
    justify-content: center;
    gap: 8px;
  }
  
  .podcast-player-actions {
    gap: 6px;
  }
}

/* Skip buttons (15/30) */
.podcast-player-controls .btn-small {
  font-size: 12px;
  font-weight: 700;
  min-width: 44px;
  height: 36px;
  padding: 0 10px;
  border: 1.5px solid rgba(var(--primary-rgb), 0.2);
  border-radius: 10px;
  background: linear-gradient(135deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.05) 100%);
  color: var(--color-text);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.podcast-player-controls .btn-small:hover {
  background: linear-gradient(135deg,
    rgba(var(--primary-rgb), 0.15) 0%,
    rgba(var(--primary-rgb), 0.1) 100%);
  border-color: rgba(var(--primary-rgb), 0.4);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

.podcast-player-controls .btn-small:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* Play/Pause button - hero element */
.podcast-player-controls .btn-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    var(--color-primary-hover) 100%);
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.4),
              0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.podcast-player-controls .btn-icon::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
}

.podcast-player-controls .btn-icon:hover::before {
  width: 100%;
  height: 100%;
}

.podcast-player-controls .btn-icon:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.5),
              0 3px 6px rgba(0, 0, 0, 0.15);
}

.podcast-player-controls .btn-icon:active {
  transform: scale(0.95);
}

.podcast-player-controls .btn-icon svg {
  position: relative;
  z-index: 1;
}

.podcast-player-actions .btn-small {
  height: 32px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.podcast-player-actions .btn-small:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(var(--primary-rgb), 0.3);
  color: var(--color-text);
  transform: translateY(-1px);
}

/* Visualizer Toggle Button */
#podcast-visualizer-toggle-btn {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#podcast-visualizer-toggle-btn.active {
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    var(--color-primary-hover) 100%);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2),
              0 2px 8px rgba(var(--primary-rgb), 0.3);
  transform: translateY(-1px);
}

#podcast-autoplay-btn.active {
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    var(--color-primary-hover) 100%);
  color: white;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2),
              0 2px 8px rgba(var(--primary-rgb), 0.3);
  transform: translateY(-1px);
}

/* Special styling for close button */
#podcast-close-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: all 0.2s ease;
}

#podcast-close-btn:hover {
  background: rgba(250, 82, 82, 0.1);
  border-color: rgba(250, 82, 82, 0.3);
  color: var(--color-error);
}

/* ==================== Visualizer Panel ==================== */
.visualizer-panel {
  flex: 1;
  height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg,
    var(--color-bg) 0%,
    var(--color-bg-secondary) 100%);
  overflow: hidden;
  position: relative;
}

/* Animated background pattern */
.visualizer-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(var(--primary-rgb), 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(var(--primary-rgb), 0.06) 0%, transparent 50%);
  animation: backgroundShift 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.visualizer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid rgba(var(--primary-rgb), 0.1);
  background: linear-gradient(135deg,
    rgba(255, 255, 255, 0.05) 0%,
    rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  gap: 20px;
  min-width: 0;
  position: relative;
  z-index: 2;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.visualizer-info {
  min-width: 0;
  overflow: hidden;
  flex: 1;
  animation: fadeInLeft 0.5s ease-out;
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.visualizer-info h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: linear-gradient(135deg,
    var(--color-text) 0%,
    var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.visualizer-info .text-muted {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 6px;
  font-weight: 500;
}

.visualizer-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  animation: fadeInRight 0.5s ease-out;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.visualizer-mode-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  min-width: 70px;
  text-align: center;
  padding: 8px 14px;
  background: linear-gradient(135deg,
    rgba(var(--primary-rgb), 0.15) 0%,
    rgba(var(--primary-rgb), 0.08) 100%);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  border-radius: 8px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
  transition: all 0.2s ease;
}

.visualizer-mode-label:hover {
  background: linear-gradient(135deg,
    rgba(var(--primary-rgb), 0.25) 0%,
    rgba(var(--primary-rgb), 0.15) 100%);
  transform: translateY(-1px);
}

.visualizer-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  min-height: 0;
  position: relative;
  z-index: 1;
}

.visualizer-container canvas {
  width: 100%;
  height: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15),
              0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.visualizer-container:hover canvas {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2),
              0 4px 12px rgba(0, 0, 0, 0.15);
}

.radio-art-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.radio-art-container img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 16px;
  object-fit: contain;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.25),
              0 4px 16px rgba(0, 0, 0, 0.15);
  animation: fadeInScale 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transition: all 0.3s ease;
}

.radio-art-container img:hover {
  transform: scale(1.02);
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.3),
              0 6px 20px rgba(0, 0, 0, 0.2);
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.radio-art-container.hidden {
  display: none;
}

/* Fullscreen styles */
.visualizer-panel:fullscreen {
  padding: 0;
  background: linear-gradient(180deg,
    #000000 0%,
    #0a0a0a 100%);
}

.visualizer-panel:fullscreen .visualizer-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.4) 70%,
    transparent 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.visualizer-panel:fullscreen:hover .visualizer-header {
  opacity: 1;
}

.visualizer-panel:fullscreen .visualizer-info h2 {
  color: white;
  background: linear-gradient(135deg,
    #ffffff 0%,
    #e0e0e0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.visualizer-panel:fullscreen .visualizer-info .text-muted {
  color: rgba(255, 255, 255, 0.7);
}

.visualizer-panel:fullscreen .visualizer-container {
  padding: 0;
}

.visualizer-panel:fullscreen .visualizer-container canvas {
  border-radius: 0;
  box-shadow: none;
}

.visualizer-panel:fullscreen .radio-art-container img {
  border-radius: 0;
}

/* Mobile-specific visualizer optimizations */
@media (max-width: 768px) {
  .visualizer-header {
    padding: 16px 20px;
    flex-wrap: wrap;
  }
  
  .visualizer-info h2 {
    font-size: 18px;
  }
  
  .visualizer-info .text-muted {
    font-size: 13px;
  }
  
  .visualizer-actions {
    gap: 8px;
  }
  
  .visualizer-mode-label {
    font-size: 10px;
    padding: 6px 10px;
    min-width: 60px;
  }
  
  .visualizer-container {
    padding: 20px;
  }
  
  .visualizer-container canvas {
    border-radius: 12px;
  }
  
  .radio-art-container img {
    border-radius: 12px;
  }
}

@media (max-width: 480px) {
  .visualizer-header {
    padding: 12px 16px;
  }
  
  .visualizer-info h2 {
    font-size: 16px;
  }
  
  .visualizer-container {
    padding: 16px;
  }
  
  /* Touch-friendly fullscreen toggle */
  .visualizer-panel:fullscreen .visualizer-header {
    opacity: 1;
  }
}

/* Hide player and collapse header space when not in use
   On small screens, keeping the space caused the header to remain tall
   and the articles became unscrollable. Collapsing the element avoids
   that issue while we dynamically recompute --header-height in JS. */
.podcast-player.player-hidden {
  display: none;
  animation: slideOut 0.3s ease-out;
}

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* Show animation when player appears */
.podcast-player:not(.player-hidden) {
  animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 769px) {
  /* On wider screens we can keep a subtle transition if needed later.
     For now, ensure hidden means no layout space as well. */
  .podcast-player.player-hidden {
    display: none;
  }
}

/* Enhanced focus states for accessibility */
.podcast-player-controls button:focus-visible,
.podcast-player-actions button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(var(--primary-rgb), 0.15);\n}

/* Loading state for buttons */
.podcast-player-controls button.loading,
.podcast-player-actions button.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.podcast-player-controls button.loading::after,
.podcast-player-actions button.loading::after {
  content: '';\n  position: absolute;\n  width: 14px;\n  height: 14px;\n  border: 2px solid currentColor;\n  border-top-color: transparent;\n  border-radius: 50%;\n  animation: spin 0.6s linear infinite;\n}

@keyframes spin {\n  to { transform: rotate(360deg); }\n}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  max-width: 350px;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left: 3px solid var(--color-success);
}

.toast.error {
  border-left: 3px solid var(--color-error);
}

.toast.warning {
  border-left: 3px solid var(--color-warning);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOut {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}
  }
}

/* Responsive */
@media (max-width: 1024px) {
  /* On mobile: only show one panel at a time */
  .main-content {
    display: block;
    position: relative;
    height: calc(100vh - var(--header-height));
    overflow: hidden;
  }

  .article-list-panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    min-width: 0;
    border-right: none;
    z-index: 10;
  }

  /* When detail is open, hide the list completely */
  .article-list-panel.hidden-on-narrow,
  .article-list-panel.hidden-on-radio {
    display: none;
  }
  
  /* Detail panel takes full screen when visible */
  .article-detail-panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    min-width: 0;
    z-index: 20;
  }

  /* Keep hidden detail panel hidden */
  .article-detail-panel.hidden {
    display: none;
  }
  
  .ai-panel {
    width: 100%;
    border-left: none;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 100%;
    --article-list-width: 100%;
  }
  
  .sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .header-center {
    display: none;
  }

  .discover-search {
    flex-direction: column;
    align-items: stretch;
  }

  .discover-result {
    flex-direction: column;
  }
  
  .article-content {
    padding: var(--spacing-md);
  }
  
  .modal-content {
    margin: var(--spacing-sm);
    max-height: calc(100vh - var(--spacing-md));
  }
}

/* Header height is computed dynamically in JS when the player is visible */

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity var(--transition-normal), transform var(--transition-normal), background-color var(--transition-fast);
  opacity: 0;
  pointer-events: none;
}

.scroll-to-top:not(.hidden) {
  opacity: 1;
  pointer-events: auto;
}

.scroll-to-top:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.scroll-to-top:active {
  transform: translateY(0);
}

@media (max-width: 768px) {
  .scroll-to-top {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-text-muted);
}

/* Selection */
::selection {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible, a:focus-visible {
  outline-offset: 2px;
}