/* =============================================================================
   AILocal — tema
   ChatGPT/Claude benzeri: sade kenar çubuğu, yumuşak nötr yüzeyler, tek vurgu
   rengi, ağır gölge yok. Açık/koyu iki tema; anahtar `data-bs-theme` özniteliği
   (Bootstrap 5.3'ün kendi tema mekanizması) — ayrı bir öznitelik icat etmiyoruz,
   Bootstrap'in bileşenleri (buton, kart, tablo, list-group) zaten bunu okuyor.

   Aşağıdaki tokenlar hem kendi bileşenlerimizde (--alc-*) hem de Bootstrap'in
   bileşen bazlı CSS değişkenlerinde (--bs-*) kullanılıyor; böylece hazır Bootstrap
   sınıfları (btn-primary, card, list-group, table, badge) ekstra sınıf yazmadan
   yeni paletle uyumlu oluyor.
   ============================================================================= */

:root,
[data-bs-theme="light"] {
  color-scheme: light;

  --alc-bg: #ffffff;
  --alc-bg-sidebar: #f9f8f6;
  --alc-bg-hover: #efeeea;
  --alc-bg-active: #e7e4de;
  --alc-bg-subtle: #f4f3f0;
  --alc-border: #e4e2db;
  --alc-border-strong: #d6d3c9;

  --alc-text: #1c1b18;
  --alc-text-secondary: #6d6b62;
  --alc-text-tertiary: #98958a;
  --alc-text-on-accent: #fffaf7;

  --alc-accent: #c2603f;
  --alc-accent-hover: #a84f32;
  --alc-accent-soft: #f4e2d9;

  --alc-success: #3a7a4e;
  --alc-success-bg: #e6f2e9;
  --alc-danger: #b3432f;
  --alc-danger-bg: #f8e6e1;
  --alc-warning: #93651f;
  --alc-warning-bg: #f6ead2;

  --alc-shadow-sm: 0 1px 2px rgba(24, 22, 18, 0.06);
  --alc-shadow-md: 0 8px 24px rgba(24, 22, 18, 0.10);

  --bs-body-bg: var(--alc-bg);
  --bs-body-color: var(--alc-text);
  --bs-emphasis-color: var(--alc-text);
  --bs-secondary-color: var(--alc-text-secondary);
  --bs-border-color: var(--alc-border);
  --bs-border-color-translucent: var(--alc-border);
  --bs-secondary-bg: var(--alc-bg-subtle);
  --bs-tertiary-bg: var(--alc-bg-subtle);
  --bs-primary: var(--alc-accent);
  --bs-link-color: var(--alc-accent);
  --bs-link-hover-color: var(--alc-accent-hover);
  --bs-link-color-rgb: 194, 96, 63;
  --bs-card-bg: var(--alc-bg);
  --bs-card-border-color: var(--alc-border);
  --bs-code-color: var(--alc-accent-hover);
}

[data-bs-theme="dark"] {
  color-scheme: dark;

  --alc-bg: #1e1d1a;
  --alc-bg-sidebar: #181715;
  --alc-bg-hover: #2a2926;
  --alc-bg-active: #34322d;
  --alc-bg-subtle: #252420;
  --alc-border: #38362f;
  --alc-border-strong: #47443b;

  --alc-text: #f1efe8;
  --alc-text-secondary: #ada99d;
  --alc-text-tertiary: #7c796d;
  --alc-text-on-accent: #1c1210;

  --alc-accent: #e0865f;
  --alc-accent-hover: #ec9c79;
  --alc-accent-soft: #3b2a21;

  --alc-success: #75c489;
  --alc-success-bg: #1f3324;
  --alc-danger: #e28c7a;
  --alc-danger-bg: #3a231e;
  --alc-warning: #dcb46a;
  --alc-warning-bg: #392e1a;

  --alc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --alc-shadow-md: 0 12px 28px rgba(0, 0, 0, 0.45);

  --bs-body-bg: var(--alc-bg);
  --bs-body-color: var(--alc-text);
  --bs-emphasis-color: var(--alc-text);
  --bs-secondary-color: var(--alc-text-secondary);
  --bs-border-color: var(--alc-border);
  --bs-border-color-translucent: var(--alc-border);
  --bs-secondary-bg: var(--alc-bg-subtle);
  --bs-tertiary-bg: var(--alc-bg-subtle);
  --bs-primary: var(--alc-accent);
  --bs-link-color: var(--alc-accent);
  --bs-link-hover-color: var(--alc-accent-hover);
  --bs-link-color-rgb: 224, 134, 95;
  --bs-card-bg: var(--alc-bg-subtle);
  --bs-card-border-color: var(--alc-border);
  --bs-code-color: var(--alc-accent);
}

/* ---- Temel ---------------------------------------------------------------- */

* {
  scrollbar-color: var(--alc-border-strong) transparent;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--alc-bg);
  color: var(--alc-text);
  margin: 0;
  transition: background-color 0.15s ease, color 0.15s ease;
}

a {
  color: var(--alc-accent);
}

a:hover {
  color: var(--alc-accent-hover);
}

::selection {
  background-color: var(--alc-accent-soft);
}

.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.icon-sm {
  width: 17px;
  height: 17px;
}

/* ---- Sayfa iskeleti --------------------------------------------------------
   Kenar çubuğu + içerik. ChatGPT/Claude'daki gibi: sol tarafta sabit, dar bir
   gezinme şeridi; içerik ortada, okunur genişlikte.
   ----------------------------------------------------------------------------*/

.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: 264px;
  flex-shrink: 0;
  background-color: var(--alc-bg-sidebar);
  border-right: 1px solid var(--alc-border);
  display: flex;
  flex-direction: column;
  padding: 0.75rem;
  gap: 0.25rem;
}

.sidebar-brand {
  padding: 0.5rem 0.5rem 1rem;
}

.sidebar-brand-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--alc-text);
  font-weight: 600;
  font-size: 1.05rem;
}

.sidebar-brand-link:hover {
  color: var(--alc-text);
}

.sidebar-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background-color: var(--alc-accent);
  color: var(--alc-text-on-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.sidebar-new-chat {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.7rem;
  margin-bottom: 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--alc-border-strong);
  background-color: var(--alc-bg);
  color: var(--alc-text);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}

.sidebar-new-chat:hover {
  background-color: var(--alc-bg-hover);
  color: var(--alc-text);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.sidebar-nav-link,
.sidebar-footer-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  color: var(--alc-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.sidebar-nav-link:hover,
.sidebar-footer-link:hover {
  background-color: var(--alc-bg-hover);
  color: var(--alc-text);
}

.sidebar-nav-link.active {
  background-color: var(--alc-bg-active);
  color: var(--alc-text);
  font-weight: 500;
}

.sidebar-spacer {
  flex: 1;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--alc-border);
}

.theme-toggle {
  position: relative;
}

.theme-icon-dark {
  display: none;
}

[data-bs-theme="dark"] .theme-icon-light {
  display: none;
}

[data-bs-theme="dark"] .theme-icon-dark {
  display: block;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.7rem 0.1rem;
  margin-top: 0.25rem;
}

.sidebar-user-name {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  color: var(--alc-text-secondary);
}

.sidebar-logout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: none;
  background: none;
  color: var(--alc-text-tertiary);
  padding: 0;
}

.sidebar-logout-btn:hover {
  background-color: var(--alc-bg-hover);
  color: var(--alc-danger);
}

.sidebar-toggle {
  position: fixed;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 1040;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  border: 1px solid var(--alc-border);
  background-color: var(--alc-bg);
  color: var(--alc-text);
  box-shadow: var(--alc-shadow-sm);
}

.sidebar-backdrop {
  display: none;
}

.app-main {
  flex: 1;
  min-width: 0;
  background-color: var(--alc-bg);
}

.app-main-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.25rem 1.75rem 4rem;
}

@media (max-width: 767.98px) {
  .app-sidebar {
    position: fixed;
    inset: 0 30% 0 0;
    z-index: 1050;
    max-width: 300px;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: var(--alc-shadow-md);
  }

  .app-sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1045;
    background-color: rgba(0, 0, 0, 0.35);
  }

  .sidebar-backdrop.is-visible {
    display: block;
  }

  .app-main-inner {
    padding: 4.25rem 1.25rem 3rem;
  }
}

@media (min-width: 768px) {
  .sidebar-toggle {
    display: none !important;
  }
}

/* ---- Bootstrap bileşenlerinin yeni paletle uyumu --------------------------
   Bootstrap 5.3 çoğu bileşeni --bs-* CSS değişkenleriyle tanımlar; bunları
   burada geçersiz kılmak, Sass'ı yeniden derlemeden özelleştirmenin resmi yolu.
   ----------------------------------------------------------------------------*/

.btn {
  --bs-btn-border-radius: 8px;
  --bs-btn-focus-box-shadow: 0 0 0 0.2rem var(--alc-accent-soft);
}

.btn-primary {
  --bs-btn-bg: var(--alc-accent);
  --bs-btn-border-color: var(--alc-accent);
  --bs-btn-color: var(--alc-text-on-accent);
  --bs-btn-hover-bg: var(--alc-accent-hover);
  --bs-btn-hover-border-color: var(--alc-accent-hover);
  --bs-btn-hover-color: var(--alc-text-on-accent);
  --bs-btn-active-bg: var(--alc-accent-hover);
  --bs-btn-active-border-color: var(--alc-accent-hover);
  --bs-btn-active-color: var(--alc-text-on-accent);
  --bs-btn-disabled-bg: var(--alc-accent);
  --bs-btn-disabled-border-color: var(--alc-accent);
  --bs-btn-disabled-color: var(--alc-text-on-accent);
}

.btn-outline-primary {
  --bs-btn-color: var(--alc-accent);
  --bs-btn-border-color: var(--alc-border-strong);
  --bs-btn-hover-bg: var(--alc-accent);
  --bs-btn-hover-border-color: var(--alc-accent);
  --bs-btn-hover-color: var(--alc-text-on-accent);
  --bs-btn-active-bg: var(--alc-accent-hover);
  --bs-btn-active-border-color: var(--alc-accent-hover);
  --bs-btn-active-color: var(--alc-text-on-accent);
}

.btn-outline-secondary {
  --bs-btn-color: var(--alc-text-secondary);
  --bs-btn-border-color: var(--alc-border-strong);
  --bs-btn-hover-bg: var(--alc-bg-hover);
  --bs-btn-hover-border-color: var(--alc-border-strong);
  --bs-btn-hover-color: var(--alc-text);
  --bs-btn-active-bg: var(--alc-bg-active);
  --bs-btn-active-border-color: var(--alc-border-strong);
  --bs-btn-active-color: var(--alc-text);
}

.btn-link {
  --bs-btn-color: var(--alc-accent);
  --bs-btn-hover-color: var(--alc-accent-hover);
}

.form-control,
.form-select {
  border-radius: 8px;
  border-color: var(--alc-border-strong);
  background-color: var(--alc-bg);
  color: var(--alc-text);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--alc-accent);
  box-shadow: 0 0 0 0.2rem var(--alc-accent-soft);
  background-color: var(--alc-bg);
  color: var(--alc-text);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.15rem var(--alc-bg), 0 0 0 0.3rem var(--alc-accent-soft);
}

.card {
  --bs-card-border-radius: 12px;
  border-color: var(--alc-border);
  box-shadow: var(--alc-shadow-sm);
}

.list-group-item a {
  /* Basligi baglanti yaptigimiz yerlerde (sohbet listesi) vurgu rengi degil,
     normal metin rengi kullanilir; liste ogesi zaten tiklanabilir gorunuyor. */
  color: inherit;
}

.list-group-item {
  --bs-list-group-color: var(--alc-text);
  --bs-list-group-bg: transparent;
  --bs-list-group-border-color: var(--alc-border);
  --bs-list-group-action-hover-color: var(--alc-text);
  --bs-list-group-action-hover-bg: var(--alc-bg-hover);
  --bs-list-group-active-color: var(--alc-text);
  --bs-list-group-active-bg: var(--alc-bg-active);
  --bs-list-group-active-border-color: var(--alc-border);
  border-radius: 8px !important;
}

.table {
  --bs-table-color: var(--alc-text);
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--alc-border);
  --bs-table-hover-bg: var(--alc-bg-hover);
  --bs-table-hover-color: var(--alc-text);
}

.badge {
  font-weight: 500;
}

.bg-success {
  background-color: var(--alc-success) !important;
  color: #fff !important;
}

.bg-danger {
  background-color: var(--alc-danger) !important;
  color: #fff !important;
}

.bg-secondary {
  background-color: var(--alc-text-tertiary) !important;
  color: #fff !important;
}

.bg-light {
  background-color: var(--alc-bg-subtle) !important;
  color: var(--alc-text) !important;
  border: 1px solid var(--alc-border);
}

.alert-success {
  background-color: var(--alc-success-bg);
  border-color: var(--alc-success-bg);
  color: var(--alc-success);
}

.alert-danger {
  background-color: var(--alc-danger-bg);
  border-color: var(--alc-danger-bg);
  color: var(--alc-danger);
}

.text-muted {
  color: var(--alc-text-secondary) !important;
}

.text-danger {
  color: var(--alc-danger) !important;
}

.text-warning {
  color: var(--alc-warning) !important;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* ---- Alıntıyı taranmış sayfada gösterme ------------------------------------ */

.citation-badge {
  border: 1px solid var(--alc-border);
  cursor: pointer;
}

.citation-badge:hover {
  border-color: var(--alc-accent);
}

.citation-page {
  position: relative;
  display: inline-block;
  max-width: 100%;
  line-height: 0;
}

.citation-page-image,
.citation-page-canvas {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--alc-border);
  border-radius: 4px;
  /* Koyu temada beyaz kağıt göz yormasın ama içerik bozulmasın. */
  background-color: #fff;
}

/* pdf.js tuvali: piksel boyutu keskinlik için büyük, GÖRÜNÜM boyutu kabın genişliği (kutular yüzde olduğundan uyumlu). */
.citation-page-canvas {
  display: block;
  width: 100%;
  height: auto;
}

/* Kutular görselin üstünde yüzde olarak konumlanır; tıklamayı engellemez. */
.citation-region {
  position: absolute;
  pointer-events: none;
  background-color: rgba(224, 134, 95, 0.32);
  outline: 2px solid var(--alc-accent);
  border-radius: 2px;
  mix-blend-mode: multiply;
}

[data-bs-theme="dark"] .citation-region {
  /* multiply koyu zeminde kaybolur; beyaz kağıt üstünde normal karışım daha okunur. */
  mix-blend-mode: normal;
  background-color: rgba(224, 134, 95, 0.28);
}

/* ---- Giriş kartı ------------------------------------------------------- */

.auth-card {
  max-width: 420px;
  margin: 3rem auto 0;
  padding: 2rem;
  border: 1px solid var(--alc-border);
  border-radius: 14px;
  background-color: var(--alc-bg);
  box-shadow: var(--alc-shadow-sm);
}

/* ---- Karşılama sayfası --------------------------------------------------- */

.hero {
  padding: 2rem 0 1rem;
}

.hero-eyebrow {
  color: var(--alc-accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.feature-card {
  border: 1px solid var(--alc-border);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  background-color: var(--alc-bg-subtle);
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--alc-text-secondary);
  margin: 0;
}

/* Kenar çubuğu masaüstünde ekrana sabit; uzun sayfada kaymaz. */
@media (min-width: 768px) {
  .app-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
  }
}