:root {
  /* TALOST Açık Tema Renk Belirteçleri */
  --color-bg: #F7F7F5;
  --color-bg-soft: #F2F2F0;
  --color-surface: #FFFFFF;
  --color-surface-soft: #FAFAF9;
  --color-text: #171719;
  --color-text-secondary: #606166;
  --color-text-muted: #8B8D92;
  --color-border: #E7E7E5;
  --color-border-strong: #DADAD7;
  --color-primary: #111111;
  --color-accent: #DE4407;
  --color-accent-hover: #C43B05;
  --color-accent-soft: #FDF1EC;
  --color-on-accent: #FFFFFF;

  /* Durum Belirteçleri */
  --color-success: #16A36A;
  --color-success-bg: #ECFDF3;
  --color-success-border: #ABEFC6;
  --color-warning: #D68A1F;
  --color-warning-bg: #FFFAEB;
  --color-warning-border: #FEDF89;
  --color-danger: #E25555;
  --color-danger-bg: #FEF3F2;
  --color-danger-border: #FECDCA;
  --color-info: #5A76D9;
  --color-info-bg: #EEF2FF;
  --color-info-border: #C7D2FE;

  /* Boşluk Ölçeği */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Köşe Yuvarlaklığı ve Gölgeler */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);

  /* Dokunma ve Güvenli Alan */
  --touch-target-min: 44px;
  --color-backdrop: rgba(23, 23, 25, 0.45);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --topbar-h: 56px;
  --sidebar-w: 288px;
  color-scheme: light;
}

/* Karanlık tema: html[data-theme="dark"] (istemci, sistem tercihine ya da kullanıcı seçimine göre ayarlar) */
:root[data-theme="dark"] {
  --color-bg: #0F1011;
  --color-bg-soft: #141516;
  --color-surface: #18191B;
  --color-surface-soft: #202124;
  --color-text: #F5F5F3;
  --color-text-secondary: #A0A2A8;
  --color-text-muted: #6B6D74;
  --color-border: #27282B;
  --color-border-strong: #3A3B40;
  --color-primary: #FFFFFF;
  --color-accent: #F2652B;
  --color-accent-hover: #FF7A45;
  --color-accent-soft: rgba(242, 101, 43, 0.18);
  --color-on-accent: #FFFFFF;
  --color-success: #22C55E;
  --color-success-bg: rgba(34, 197, 94, 0.12);
  --color-success-border: rgba(34, 197, 94, 0.35);
  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.14);
  --color-warning-border: rgba(245, 158, 11, 0.35);
  --color-danger: #EF4444;
  --color-danger-bg: rgba(239, 68, 68, 0.12);
  --color-danger-border: rgba(239, 68, 68, 0.35);
  --color-info: #6366F1;
  --color-info-bg: rgba(99, 102, 241, 0.14);
  --color-info-border: rgba(99, 102, 241, 0.35);
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --color-backdrop: rgba(0, 0, 0, 0.6);
  color-scheme: dark;
}

/* TALOST Veri — Bileşen Stilleri (Yalnız tokens.css değişkenleri kullanılır) */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body > div {
  width: 100%;
  height: 100%;
}

[hidden] {
  display: none !important;
}

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

.icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Marka */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  user-select: none;
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 15px;
  color: var(--color-text);
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.brand-sub {
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 38px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  background-color: var(--color-surface-soft);
  color: var(--color-text);
  transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-surface-soft);
  color: var(--color-text);
}

.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-on-accent);
}

.btn-danger:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-danger-text {
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}

.btn-danger-text:hover:not(:disabled) {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
}

.btn-sm {
  height: 32px;
  padding: 0 var(--space-3);
  font-size: 13px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.icon-btn:hover:not(:disabled) {
  background-color: var(--color-surface-soft);
  color: var(--color-text);
}

.link-btn {
  border: none;
  background: transparent;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 13px;
  padding: var(--space-1) var(--space-2);
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.link-btn:hover:not(:disabled) {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.link-btn:disabled {
  color: var(--color-text-muted);
  cursor: not-allowed;
  text-decoration: none;
}

/* Form Alanları */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
}

.field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.input {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s ease;
}

.input:focus {
  border-color: var(--color-accent);
}

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

.code-input {
  height: 54px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.4em;
  text-align: center;
  padding-left: 0.4em;
}

.alert-danger {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background-color: var(--color-danger-bg);
  border: 1px solid var(--color-danger-border);
  color: var(--color-danger);
  font-size: 13px;
  line-height: 1.45;
}

/* Giriş Ekranı */
.login-wrap {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background-color: var(--color-bg);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-8);
}

.login-title {
  margin: var(--space-5) 0 var(--space-2) 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.login-desc {
  margin: 0 0 var(--space-6) 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.login-btn {
  width: 100%;
  height: 44px;
  border-radius: var(--radius-sm);
}

.login-sent-info {
  font-size: 13px;
  color: var(--color-text-secondary);
  background-color: var(--color-surface-soft);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  word-break: break-word;
}

.remember-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  cursor: pointer;
  user-select: none;
}

.remember-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.remember-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}

.remember-hint {
  font-size: 12px;
  color: var(--color-text-muted);
  padding-left: 26px;
}

.login-resend-row {
  display: flex;
  justify-content: center;
}

/* Ana Uygulama Yerleşimi */
.app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--color-bg);
}

.topbar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0 var(--space-4);
  z-index: 20;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.topbar-center {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 480px;
}

.topbar-search {
  width: 100%;
  height: 36px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-3);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.topbar-search:hover {
  border-color: var(--color-border-strong);
  background-color: var(--color-surface-soft);
  color: var(--color-text-secondary);
}

.topbar-search-text {
  flex: 1;
  text-align: left;
  font-size: 14px;
}

.topbar-search-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}

.mobile-only {
  display: none;
}

.app-body {
  flex: 1;
  display: flex;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

/* Kenar Çubuğu ve Ağaç */
.sidebar-backdrop {
  display: none;
}

.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background-color: var(--color-bg-soft);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  z-index: 30;
}

.sidebar-head {
  height: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-3) 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
}

.sidebar-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.tree {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-2);
}

.tree-empty {
  padding: var(--space-6) var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
}

.tree-row {
  height: 36px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-right: var(--space-1);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
  outline: none;
}

.tree-row:hover,
.tree-row:focus-visible {
  background-color: var(--color-surface-soft);
  color: var(--color-text);
}

.tree-row.is-active {
  background-color: var(--color-accent-soft);
  color: var(--color-text);
  font-weight: 600;
}

.tree-chev {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.tree-chev .icon {
  width: 14px;
  height: 14px;
}

.tree-chev.is-open {
  transform: rotate(90deg);
}

.tree-chev-spacer {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.tree-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.tree-row.is-active .tree-icon {
  color: var(--color-accent);
}

.tree-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
}

.tree-more {
  width: 32px;
  height: 32px;
  opacity: 0;
}

.tree-row:hover .tree-more,
.tree-row:focus-within .tree-more,
.tree-row.is-active .tree-more {
  opacity: 1;
}

/* Belge Alanı ve Başlık Çubuğu */
.content {
  flex: 1;
  min-width: 0;
  min-height: 0;
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.doc-bar {
  height: 48px;
  min-height: 48px;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  background-color: var(--color-surface);
}

.doc-crumbs {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-size: 14px;
}

.doc-crumb-dir {
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-crumb-sep {
  color: var(--color-text-muted);
}

.doc-crumb-file {
  color: var(--color-text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Bölümlü Düğme (Görüntüle | Düzenle | Böl) */
.seg {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.seg-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  height: 28px;
  padding: 0 var(--space-2);
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.seg-btn .icon {
  width: 15px;
  height: 15px;
}

.seg-btn:hover {
  color: var(--color-text);
}

.seg-btn.is-active {
  background-color: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-xs);
  font-weight: 600;
}

/* Kayıt Durumu Rozeti (StatusPill) */
.pill {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-soft);
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.pill-saved {
  color: var(--color-text-muted);
  background-color: var(--color-surface-soft);
  border-color: var(--color-border);
  cursor: default;
}

.pill-saving {
  color: var(--color-info);
  background-color: var(--color-info-bg);
  border-color: var(--color-info-border);
  cursor: default;
}

.pill-dirty {
  color: var(--color-warning);
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  cursor: default;
}

.pill-error {
  color: var(--color-danger);
  background-color: var(--color-danger-bg);
  border-color: var(--color-danger-border);
  cursor: pointer;
}

/* Belge Gövdesi */
.doc-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.preview-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  width: 100%;
}

/* Ön Bilgi (Frontmatter) Tablosu */
.md-props {
  max-width: 760px;
  margin: var(--space-6) auto 0 auto;
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.md-prop-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-size: 13px;
}

.md-prop-key {
  min-width: 110px;
  color: var(--color-text-muted);
  font-weight: 500;
}

.md-prop-val {
  color: var(--color-text);
  word-break: break-word;
}

/* Markdown Önizleme Tipografisi (Şartname 8.7) */
.md-preview {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
  color: var(--color-text);
  line-height: 1.65;
  word-wrap: break-word;
}

.md-preview h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 0.6em 0;
}

.md-preview h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  margin: 1.4em 0 0.5em 0;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.md-preview h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
  margin: 1.2em 0 0.4em 0;
}

.md-preview h4,
.md-preview h5,
.md-preview h6 {
  font-size: 16px;
  font-weight: 600;
  margin: 1em 0 0.4em 0;
}

.md-preview p {
  margin: 0 0 0.8em 0;
}

.md-preview ul,
.md-preview ol {
  margin: 0 0 0.8em 0;
  padding-left: 1.5em;
}

.md-preview li {
  margin-bottom: 0.25em;
}

.md-preview li:has(> input.task-check) {
  list-style: none;
  margin-left: -1.2em;
}

.md-preview input.task-check {
  width: 18px;
  height: 18px;
  vertical-align: middle;
  margin-right: var(--space-2);
  accent-color: var(--color-accent);
  cursor: pointer;
}

.md-preview code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--color-surface-soft);
  padding: 2px 5px;
  border-radius: var(--radius-sm);
}

.md-preview pre {
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
  margin: 0 0 1em 0;
}

.md-preview pre code {
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

.md-preview blockquote {
  margin: 0 0 1em 0;
  padding: var(--space-1) 0 var(--space-1) var(--space-4);
  border-left: 3px solid var(--color-accent);
  color: var(--color-text-secondary);
}

.md-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 0 0 1em 0;
}

.md-preview table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.md-preview th,
.md-preview td {
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
  text-align: left;
}

.md-preview th {
  background-color: var(--color-surface-soft);
  font-weight: 600;
}

.md-preview img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.md-preview a {
  color: var(--color-accent);
  text-decoration: underline;
}

.md-preview a.is-unresolved {
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-text-muted);
}

.md-preview hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* Editör ve Araç Çubuğu */
.editor-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.editor-toolbar {
  height: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-soft);
  overflow-x: auto;
  overflow-y: hidden;
}

.editor-mount {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Bölünmüş Görünüm (Split) */
.split {
  flex: 1;
  min-height: 0;
  display: flex;
  width: 100%;
  overflow: hidden;
}

.split-pane {
  width: 50%;
  flex: 0 0 50%;
  min-width: 0;
  min-height: 0;
}

.split-editor {
  border-right: 1px solid var(--color-border);
}

/* HTML, Resim ve PDF Görünümleri */
.doc-iframe {
  width: 100%;
  height: 100%;
  flex: 1;
  border: none;
  background-color: var(--color-surface);
}

.doc-iframe-html {
  background-color: var(--color-on-accent);
}

.doc-image-stage {
  flex: 1;
  min-height: 0;
  background-color: var(--color-bg-soft);
  display: flex;
  flex-direction: column;
  overflow: auto;
}

.doc-image-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  overflow: auto;
}

.doc-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-md);
  cursor: zoom-in;
  box-shadow: var(--shadow-sm);
}

.doc-image.is-actual {
  max-width: none;
  max-height: none;
  cursor: zoom-out;
}

.doc-image-meta {
  padding: var(--space-3) var(--space-4);
  text-align: center;
  font-size: 12px;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.pdf-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.pdf-fallback {
  padding: var(--space-2) var(--space-4);
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
  background-color: var(--color-surface-soft);
  border-top: 1px solid var(--color-border);
}

.pdf-fallback a {
  color: var(--color-accent);
  font-weight: 600;
}

/* Boş Durum */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--color-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 100;
}

.modal {
  width: 100%;
  max-width: 480px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}

.modal-body {
  padding: var(--space-5);
  overflow-y: auto;
}

.modal-text {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.modal-foot {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface-soft);
}

/* Açılır Menü */
.menu {
  position: fixed;
  min-width: 190px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-1);
  z-index: 120;
  display: flex;
  flex-direction: column;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  height: 36px;
  padding: 0 var(--space-3);
  border: none;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--color-text);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}

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

.menu-item.is-active {
  background-color: var(--color-accent-soft);
  font-weight: 600;
}

.menu-item.is-danger {
  color: var(--color-danger);
}

.menu-item.is-danger:hover {
  background-color: var(--color-danger-bg);
}

.menu-sep {
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-1) 0;
}

/* Bildirimler (Toast) */
.toast-stack {
  position: fixed;
  right: var(--space-4);
  bottom: calc(var(--space-4) + var(--safe-area-bottom));
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 150;
  pointer-events: none;
}

.toast {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  pointer-events: auto;
}

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

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

.toast-info {
  background-color: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

/* Hızlı Geçiş ve Arama (Switcher) */
.switcher-backdrop {
  align-items: flex-start;
  padding-top: 12vh;
}

.switcher {
  width: 100%;
  max-width: 640px;
  max-height: 72vh;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.switcher-head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.switcher-input {
  border: none;
  background-color: transparent;
  height: 40px;
  padding: 0 var(--space-1);
}

.switcher-input:focus {
  border-color: transparent;
}

.switcher-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.switcher-section {
  padding: var(--space-2) var(--space-3) var(--space-1) var(--space-3);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.switcher-empty {
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

.switcher-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.switcher-item.is-selected {
  background-color: var(--color-accent-soft);
}

.switcher-item-main {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}

.switcher-name {
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.switcher-path {
  font-size: 12px;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.switcher-snippet {
  font-size: 12px;
  color: var(--color-text-secondary);
  padding-left: 26px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.switcher-snippet mark {
  background-color: var(--color-warning-bg);
  color: var(--color-text);
  padding: 0 2px;
  border-radius: 4px;
}

.switcher-line {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

/* Oturumlar Listesi */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.sessions-loading {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-4);
}

.session-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-soft);
}

.session-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.session-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.session-device {
  font-weight: 600;
  color: var(--color-text);
}

.session-meta {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* Medya Sorguları: 1100px (Böl Modu) */
@media (max-width: 1099px) {
  .seg-split {
    display: none;
  }
}

/* Medya Sorguları: 900px (Sidebar Çekmece) */
@media (max-width: 900px) {
  .mobile-only {
    display: inline-flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(88vw, 320px);
    min-width: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: var(--shadow-md);
  }

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

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background-color: var(--color-backdrop);
    z-index: 25;
  }

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

  .tree-more {
    opacity: 1;
  }
}

/* Medya Sorguları: 600px (Mobil) */
@media (max-width: 600px) {
  .login-wrap {
    padding: var(--space-2);
  }

  .login-card {
    padding: var(--space-6);
  }

  .btn,
  .icon-btn,
  .menu-item,
  .tree-row,
  .switcher-item {
    min-height: var(--touch-target-min);
  }

  .topbar {
    padding: 0 var(--space-2);
  }

  .topbar-center {
    flex: 0 0 auto;
  }

  .topbar-search {
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    padding: 0;
    justify-content: center;
    background-color: transparent;
    border-color: transparent;
  }

  .topbar-search-text,
  .topbar-search-kbd {
    display: none;
  }

  .doc-bar {
    padding: 0 var(--space-3);
  }

  .doc-crumb-dir {
    display: none;
  }

  .seg-label,
  .btn-label-desktop {
    display: none;
  }

  .md-props {
    margin: var(--space-4) var(--space-4) 0 var(--space-4);
    padding: var(--space-3) var(--space-4);
  }

  .md-preview {
    padding: var(--space-6) var(--space-4);
  }

  .modal-backdrop {
    padding: 0;
    align-items: flex-end;
  }

  .modal {
    max-width: 100%;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    padding-bottom: var(--safe-area-bottom);
  }

  .switcher-backdrop {
    padding: 0;
    align-items: stretch;
  }

  .switcher {
    max-width: 100%;
    max-height: 100%;
    height: 100%;
    border-radius: 0;
    border: none;
  }

  .toast-stack {
    left: var(--space-4);
    right: var(--space-4);
    align-items: center;
  }

  .session-row {
    flex-direction: column;
    align-items: flex-start;
  }
}