/*
 * ===== Z-INDEX MAP (shared with TR-BUTE) =====
 *
 *  1           grain-overlay
 *  999-1000    header
 *  998         mobile nav overlay
 *  1001        bottom-nav
 *  2000        editor-modal
 *  2100        editor-preview-overlay
 *  2200        media-picker-overlay
 *  10000       bottom-sheet
 *  10002       modal-overlay, image-zoom-overlay
 *  10003       toast-container
 *  99999       progress-bar
 */

/* ===== Font Faces — Montserrat (locally hosted) ===== */
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/Montserrat-VariableFont_wght.woff2') format('woff2');
  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116, U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  touch-action: manipulation;
  overflow-x: hidden;
}

body {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--link-color);
  text-decoration: none;
}

a:hover {
  color: var(--link-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

svg {
  fill: currentColor;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

ul,
ol {
  list-style: none;
}

/* ===== FOUC Prevention ===== */
body {
  opacity: 0;
  visibility: hidden;
}

html.page-loading body {
  opacity: 0 !important;
  visibility: hidden !important;
}

html.page-ready body {
  opacity: 1 !important;
  visibility: visible !important;
  transition: opacity 0.15s ease-in;
}

/* ===== Firefox FOUC Prevention ===== */
@-moz-document url-prefix() {
  body {
    opacity: 0 !important;
    visibility: hidden !important;
  }

  html.page-ready body {
    opacity: 1 !important;
    visibility: visible !important;
    transition: opacity 0.15s ease-in;
  }
}

/* ===== Theme Transition Disable ===== */
html.theme-transition-disable,
html.theme-transition-disable *,
html.theme-transition-disable *::before,
html.theme-transition-disable *::after {
  transition: none !important;
}

/* ===== CSS Variables — Dark Theme (Default) ===== */
:root {
  /* Layout */
  --header-height: clamp(3.25rem, 3rem + 1vw, 3.75rem);
  --footer-height: auto;
  --bottom-nav-height: 76px;
  --content-max-width: 1200px;
  --content-narrow-width: 800px;

  /* Typography */
  --font-size-mobile: 18px;
  --font-size-desktop: 16px;
  --heading-mobile: 24px;
  --heading-desktop: 32px;
  --icon-scale: 1;
  --page-title-size: 20px;
  --page-title-size-mobile: 18px;
  --page-padding-top-mobile: 14px;
  --page-padding-bottom-mobile: 60px;

  /* Brand Colors — CineFiles palette (cinematic blue) */
  --brand-primary: #4a90d9;
  --brand-secondary: #3a7bc8;
  --brand-hover: #2d6ab5;
  --brand-muted: rgba(74, 144, 217, 0.15);

  /* Backgrounds */
  --bg-primary: #121212;
  --bg-primary-t: rgba(18, 18, 18, 0);
  --bg-secondary: #1e1e1e;
  --bg-tertiary: #2b2b2b;
  --bg-quaternary: #3a3a3a;
  --bg-overlay: rgba(0, 0, 0, 0.8);
  --removing-overlay-bg: rgba(18, 18, 18, 0.72);
  --black: #000000;

  /* Text Colors */
  --text-primary: #E0E0E0;
  --text-secondary: #a3a3a3;
  --text-tertiary: #818181;
  --text-inverse: #121212;

  /* Border Colors */
  --border-color: rgba(65, 65, 65, 0.5);
  --border-hover: rgba(143, 143, 143, 0.5);
  --border-active: rgba(74, 144, 217, 0.5);
  --divider: rgba(65, 65, 65, 0.3);

  /* Status Colors */
  --status-pending: #FFC107;
  --status-pending-bg: rgba(255, 193, 7, 0.15);
  --status-info: #2196F3;
  --status-info-bg: rgba(33, 150, 243, 0.15);
  --status-success: #4CAF50;
  --status-success-bg: rgba(76, 175, 80, 0.15);
  --status-warning: #FF9800;
  --status-warning-bg: rgba(255, 152, 0, 0.15);
  --status-error: #F44336;
  --status-error-bg: rgba(244, 67, 54, 0.15);

  /* Interactive */
  --link-color: #66b3db;
  --link-hover: #8ec8e8;
  --favorite-color: #e91e63;
  --active-page-color: #4a90d9;
  --telegram-color: #0088cc;
  --yandex-color: #FC3F1D;

  /* Deep background (matches TR-BUTE --bg-body for grain/gradient fades) */
  --bg-body: #000000;
  --bg-body-t: rgba(0, 0, 0, 0);

  /* Brand aliases */
  --icon-color: var(--brand-primary);
  --primary: var(--brand-secondary);
  --primary-hover: var(--brand-hover);

  /* Neutral button states (shared with TR-BUTE for search/input focus) */
  --neutral-btn-hover-bg: var(--bg-tertiary);
  --neutral-btn-hover-border: var(--border-hover);
  --neutral-btn-hover-color: var(--border-hover);
  --neutral-btn-active-bg: #313131;
  --neutral-btn-active-border: #848484;
  --neutral-btn-active-color: #c8c8c8;
  --neutral-btn-glow: #666;

  /* Shadows */
  --shadow-color: rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 2px var(--shadow-color);
  --shadow-md: 0 2px 8px var(--shadow-color);
  --shadow-lg: 0 8px 16px var(--shadow-color);
  --modal-popup-shadow: 0 0 0 9px rgba(30, 30, 30, 1), 0 0 0 10px var(--border-hover);

  /* Skeleton */
  --skeleton-bg-base: rgba(255, 255, 255, 0.05);
  --skeleton-bg-highlight: rgba(255, 255, 255, 0.1);

  /* Glass */
  --glass-bg: var(--bg-secondary);
  --glass-border: var(--border-color);

  /* Cards */
  --card-bg: var(--bg-secondary);
  --card-bg-hover: var(--bg-tertiary);
  --card-border: var(--border-color);
  --card-border-hover: var(--border-hover);

  /* Filter group */
  --filter-group-bg: black;
  --filter-group-border: #414141;
  --filter-group-shadow: #414141;

  /* Filter active state */
  --filter-active-bg: rgba(74, 144, 217, 0.15);
  --filter-active-border: #4a90d9;
  --filter-active-color: #4a90d9;

  /* Tab colors */
  --tab-inactive-bg: var(--bg-secondary);
  --tab-inactive-border: var(--border-color);
  --tab-active-bg: var(--bg-primary);
  --tab-counter-bg: rgba(6, 111, 163, 0.2);
  --tab-counter-border: rgba(6, 111, 163, 0.4);
  --tab-counter-color: #66b3db;
  --tab-counter-active-bg: rgba(6, 111, 163, 0.3);
  --tab-counter-active-color: #9cddfd;

  /* Skeleton animation */
  --skeleton-border-radius: 8px;
  --skeleton-animation-duration: 1.2s;
  --skeleton-animation-timing: ease-in-out;

}

/* ===== Light Theme Overrides ===== */
html[data-theme="light"],
body[data-theme="light"] {
  --bg-primary: #f2ede4;
  --bg-primary-t: rgba(242, 237, 228, 0);
  --bg-secondary: #e8e2d8;
  --bg-tertiary: #dcd5c8;
  --bg-quaternary: #cfc7b8;
  --bg-overlay: rgba(30, 20, 10, 0.55);
  --removing-overlay-bg: rgba(242, 237, 228, 0.75);
  --black: #1c160e;
  --text-primary: #1c160e;
  --text-secondary: #4a4035;
  --text-tertiary: #6b6055;
  --text-inverse: #f2ede4;
  --border-color: rgba(80, 60, 30, 0.15);
  --border-hover: rgba(80, 60, 30, 0.3);
  --border-active: rgba(37, 150, 190, 0.5);
  --divider: rgba(80, 60, 30, 0.1);
  --shadow-color: rgba(30, 20, 10, 0.14);
  --shadow-sm: 0 1px 3px var(--shadow-color);
  --shadow-md: 0 2px 8px var(--shadow-color);
  --shadow-lg: 0 8px 24px var(--shadow-color);
  --brand-primary: #2d6ab5;
  --brand-secondary: #245a9e;
  --brand-hover: #1d4d8a;
  --brand-muted: rgba(45, 106, 181, 0.12);
  --link-color: #2596be;
  --link-hover: #1a6f8f;
  --active-page-color: #2596be;
  --status-pending: #b45309;
  --status-pending-bg: rgba(180, 83, 9, 0.12);
  --status-warning: #b45309;
  --status-warning-bg: rgba(180, 83, 9, 0.12);
  --status-info: #1a6fa3;
  --status-info-bg: rgba(26, 111, 163, 0.12);
  --status-success: #2e7d32;
  --status-success-bg: rgba(46, 125, 50, 0.12);
  --status-error: #c62828;
  --status-error-bg: rgba(198, 40, 40, 0.12);
  --skeleton-bg-base: rgba(80, 60, 30, 0.08);
  --skeleton-bg-highlight: rgba(80, 60, 30, 0.14);
  --card-bg: var(--bg-secondary);
  --card-bg-hover: var(--bg-tertiary);
  --card-border: var(--border-color);
  --card-border-hover: var(--border-hover);
  --filter-group-bg: var(--bg-primary);
  --filter-group-border: var(--border-color);
  --filter-active-bg: rgba(37, 150, 190, 0.12);
  --filter-active-border: #2596be;
  --filter-active-color: #2596be;
  --tab-active-bg: var(--bg-primary);
  --tab-counter-bg: rgba(26, 111, 163, 0.12);
  --tab-counter-border: rgba(26, 111, 163, 0.3);
  --tab-counter-color: #1a6fa3;
  --tab-counter-active-bg: rgba(26, 111, 163, 0.2);
  --tab-counter-active-color: #0d4f78;
  --bg-body: #f9f5ed;
  --bg-body-t: rgba(249, 245, 237, 0);
  --neutral-btn-hover-bg: var(--bg-tertiary);
  --neutral-btn-hover-border: var(--border-hover);
  --neutral-btn-hover-color: var(--border-hover);
  --neutral-btn-active-bg: #d5cfc4;
  --neutral-btn-active-border: #7a7060;
  --neutral-btn-active-color: #4a4035;
  --neutral-btn-glow: rgba(80, 60, 30, 0.25);
}

/* ===== Skeleton Animation ===== */
@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--skeleton-bg-base) 25%,
    var(--skeleton-bg-highlight) 50%,
    var(--skeleton-bg-base) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-pulse var(--skeleton-animation-duration) var(--skeleton-animation-timing) infinite;
  border-radius: var(--skeleton-border-radius);
}

/* ===== Progress Bar ===== */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(to right, var(--brand-primary), var(--brand-secondary));
  z-index: 99999;
  transition: width 800ms ease;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-quaternary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.container-narrow {
  width: 100%;
  max-width: var(--content-narrow-width);
  margin: 0 auto;
  padding: 0 16px;
}

main {
  flex: 1 0 auto;
  padding-top: var(--header-height);
  min-width: 0;
  overflow: hidden;
}

.site-layout {
  flex: 1 0 auto;
  padding-top: var(--header-height);
}

.site-layout main {
  padding-top: 0;
}

/* ===== Responsive Typography ===== */
html { font-size: var(--font-size-desktop); }

@media (max-width: 768px) {
  html { font-size: var(--font-size-mobile); }
}

/* ===== Focus & Tap Resets ===== */
button:focus, input:focus, select:focus, textarea:focus, a:focus, *:focus {
  outline: none !important;
}

* { -webkit-tap-highlight-color: transparent !important; }

button, a:not([contenteditable]), [role="button"], [onclick] {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

input[type="text"], input[type="email"], input[type="password"],
input[type="search"], input[type="tel"], input[type="url"],
textarea, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

a, button, [role="button"], label {
  touch-action: manipulation;
}

/* ===== Body Locks ===== */
body.popup-open { overflow: hidden; touch-action: none; overscroll-behavior: none; }
body.modal-open { overflow: hidden; touch-action: none; overscroll-behavior: none; }
body.sheet-open { position: fixed; width: 100%; overflow: hidden; overscroll-behavior: contain; }

/* ===== Desktop/Mobile Utility Classes ===== */
.desktop-only { display: flex; }
.mobile-only { display: none; }

@media (hover: none) and (pointer: coarse) {
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
}

@media (hover: hover) and (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: flex !important; }
}

/* ===== Toast Notifications ===== */
.toast-container {
  position: fixed;
  z-index: 10003;
  pointer-events: none;
}

@media (min-width: 769px) {
  .toast-container { top: 20px; right: 20px; min-width: 300px; max-width: 400px; }
}

@media (max-width: 768px) {
  .toast-container { top: calc(var(--header-height) + 8px); left: 8px; right: 8px; }
}

.toast-notification {
  pointer-events: auto;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.28s ease;
}

@media (min-width: 769px) {
  .toast-notification { cursor: pointer; }
}
@media (max-width: 768px) {
  .toast-notification { cursor: grab; }
}

/* Collapsed stacking — peek from behind */
.toast-notification[data-stack-index="1"] { transform: translateY(6px) scale(0.96); opacity: 0.7; }
.toast-notification[data-stack-index="2"] { transform: translateY(12px) scale(0.92); opacity: 0.4; }

/* Expanded state — overrides stacking */
.toast-expanded .toast-notification { opacity: 1; }

.toast-notification.success { border-color: var(--status-success); background: var(--status-success-bg); }
.toast-notification.error { border-color: var(--status-error); background: var(--status-error-bg); }
.toast-notification.warning { border-color: var(--status-warning); background: var(--status-warning-bg); }
.toast-notification.info { border-color: var(--status-info); background: var(--status-info-bg); }

.toast-notification.toast-entering { animation: toastSlideIn 0.28s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
.toast-notification.toast-leaving { animation: toastSlideOut 0.22s ease forwards; pointer-events: none; }

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

@media (min-width: 769px) {
  @keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
  }
  @keyframes toastSlideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
  }
}

/* ===== 404 Not Found ===== */
.not-found-page {
  padding: 60px 0;
  text-align: center;
}

.not-found-title {
  font-size: var(--heading-desktop);
  color: var(--text-primary);
  margin-bottom: 16px;
}

.not-found-message {
  color: var(--text-secondary);
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Mobile clearance ===== */
@media (max-width: 768px) {
  main { padding-bottom: var(--bottom-nav-height); }
  .site-layout { padding-bottom: var(--bottom-nav-height); }
  .site-layout main { padding-bottom: 0; }
}

@media (hover: none) and (pointer: coarse), (max-width: 768px) {
  .page-content { padding-top: var(--page-padding-top-mobile); }
}