/* ═══════════════════════════════════════
   라인의 법칙 — 드라마 분석 뷰어
   2026 Dark Theme · Linear/v0 Inspired
   ═══════════════════════════════════════ */

/* ─── Pretendard Variable ─── */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

:root {
  /* Background Layers */
  --bg-base:       #09090b;
  --bg-surface:    #0f0f12;
  --bg-elevated:   #18181b;
  --bg-hover:      #1f1f23;
  --bg-input:      #131316;

  /* Borders */
  --border:        #27272a;
  --border-light:  #3f3f46;

  /* Text */
  --text-primary:  #fafafa;
  --text-secondary:#a1a1aa;
  --text-muted:    #71717a;

  /* Accent — Indigo */
  --accent:        #6366f1;
  --accent-hover:  #818cf8;
  --accent-dim:    rgba(99,102,241,0.12);
  --accent-border: rgba(99,102,241,0.25);

  /* Semantic */
  --red:           #ef4444;
  --green:         #22c55e;
  --yellow:        #eab308;
  --blue:          #3b82f6;
  --orange:        #f97316;

  /* Pillar Colors */
  --pillar-directing:   #f97316;
  --pillar-screenplay:  #22c55e;
  --pillar-cinema:      #3b82f6;

  /* Typography */
  --font-sans: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Spacing & Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 100ms;
  --duration-normal: 200ms;
  --duration-medium: 300ms;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ─── Layout ─── */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ─── Top Navigation ─── */
.top-nav {
  height: 52px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  padding-right: 20px;
  margin-right: 8px;
  white-space: nowrap;
  letter-spacing: -0.3px;
}
.nav-logo span {
  display: none;
}

/* Nav Links — icon tabs */
.nav-links {
  display: flex;
  gap: 2px;
  height: 100%;
}
.nav-links a {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s, background .15s;
  white-space: nowrap;
}
.nav-links a svg {
  opacity: 0.5;
  transition: opacity .15s;
  flex-shrink: 0;
}
.nav-links a:hover {
  color: var(--text-secondary);
  background: var(--bg-hover);
}
.nav-links a:hover svg { opacity: 0.8; }
.nav-links a.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
}
.nav-links a.active svg { opacity: 1; }

/* Auth Nav */
.auth-nav { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.auth-user { font-size: 12px; color: var(--text-secondary); }
.auth-logout {
  height: 30px; padding: 0 12px; border-radius: 6px; font-size: 11px; font-weight: 500;
  color: var(--text-muted); background: transparent; border: 1px solid var(--border); cursor: pointer;
  transition: all var(--duration-normal) var(--ease);
}
.auth-logout:hover { color: var(--text-primary); background: var(--bg-hover); }
.auth-logout.guest {
  color: #fdba74; background: rgba(249,115,22,0.1); border-color: rgba(249,115,22,0.3);
}
.auth-logout.guest:hover { background: rgba(249,115,22,0.2); }

.page {
  display: none;
  flex: 1;
}
.page.active { display: flex; }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
  padding: 40px;
}
.empty-state .icon { font-size: 36px; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 14px; }

/* ═══ Chat Page ═══ */
.chat-page {
  flex-direction: row;
  height: calc(100vh - 48px);
}

/* History Sidebar */
.chat-context {
  width: 260px;
  min-width: 260px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.chat-context h3 {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
}

.chat-history-item {
  padding: 8px 10px;
  margin-bottom: 2px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease);
}
.chat-history-item:hover {
  background: var(--bg-hover);
}
.chat-history-item.active {
  background: var(--accent-dim);
  border-color: var(--accent-border);
}
.chat-history-item .item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}
.chat-history-item .item-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 3px;
}
.chat-history-item .item-date {
  font-size: 11px;
  color: var(--text-muted);
}
.chat-history-item .item-tag {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.chat-history-item .item-delete {
  opacity: 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
  border-radius: 3px;
  transition: all var(--duration-fast) var(--ease);
}
.chat-history-item:hover .item-delete { opacity: 0.6; }
.chat-history-item .item-delete:hover { opacity: 1; color: var(--red); background: rgba(239,68,68,0.1); }

/* Chat Main */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-base);
  height: 100%;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 0;
}

.chat-message {
  margin-bottom: 4px;
  padding: 12px 32px;
  display: flex;
  gap: 12px;
  transition: background var(--duration-fast) var(--ease);
}
.chat-message:hover { background: rgba(255,255,255,0.015); }
.chat-message.user { background: rgba(255,255,255,0.02); }

.chat-message .avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 2px;
}
.chat-message.user .avatar { background: var(--accent-dim); }
.chat-message.assistant .avatar { background: rgba(34,197,94,0.1); }

.chat-message .bubble { flex: 1; max-width: 720px; }
.chat-message .bubble .sender {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.chat-message .bubble .content {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-primary);
}
.chat-message.user .bubble .content {
  color: var(--text-primary);
}
.chat-message.user .bubble .content p {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  display: inline-block;
}
.chat-message.assistant .bubble .content .md-content {
  font-size: 14px;
  line-height: 1.8;
}
.chat-message.assistant .bubble .content .md-content h1,
.chat-message.assistant .bubble .content .md-content h2,
.chat-message.assistant .bubble .content .md-content h3 {
  margin-top: 16px;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.chat-message.assistant .bubble .content .md-content h2 { font-size: 16px; color: var(--accent-hover); }
.chat-message.assistant .bubble .content .md-content h3 { font-size: 14px; }
.chat-message.assistant .bubble .content .md-content p { margin-bottom: 8px; }
.chat-message.assistant .bubble .content .md-content ul,
.chat-message.assistant .bubble .content .md-content ol { padding-left: 20px; margin-bottom: 8px; }
.chat-message.assistant .bubble .content .md-content li { margin-bottom: 4px; }
.chat-message.assistant .bubble .content .md-content code {
  background: var(--bg-elevated);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent-hover);
}
.chat-message.assistant .bubble .content .md-content pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  overflow-x: auto;
  margin: 8px 0;
}
.chat-message.assistant .bubble .content .md-content pre code {
  background: transparent;
  padding: 0;
  color: var(--text-secondary);
}
.chat-message.assistant .bubble .content .md-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 13px;
}
.chat-message.assistant .bubble .content .md-content th,
.chat-message.assistant .bubble .content .md-content td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
}
.chat-message.assistant .bubble .content .md-content th {
  background: var(--bg-elevated);
  font-weight: 600;
  color: var(--text-secondary);
}
.chat-message.assistant .bubble .content .md-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  margin: 8px 0;
  color: var(--text-secondary);
}
.chat-message.assistant .bubble .content .md-content strong { color: var(--text-primary); }

.chat-message .actions {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease);
}
.chat-message:hover .actions { opacity: 1; }
.chat-message .actions button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
}
.chat-message .actions button:hover {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent-border);
}

/* Chat Input — 항상 하단 고정 */
.chat-input-area {
  padding: 12px 32px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  flex-shrink: 0;
  position: sticky;
  bottom: 0;
  z-index: 10;
}

.chat-input-box {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.chat-input-box textarea {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-sans);
  resize: none;
  outline: none;
  min-height: 44px;
  max-height: 140px;
  line-height: 1.5;
  transition: border-color var(--duration-fast) var(--ease);
}
.chat-input-box textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.chat-input-box textarea::placeholder { color: var(--text-muted); }

.chat-input-box .send-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: all var(--duration-fast) var(--ease);
  flex-shrink: 0;
}
.chat-input-box .send-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.chat-input-box .send-btn:active { transform: translateY(0) scale(0.97); }
.chat-input-box .send-btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none; }

/* Script Panel */
.chat-script-panel {
  width: 340px;
  border-left: 1px solid var(--border);
  background: var(--bg-surface);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.chat-script-panel .script-header {
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1;
  font-size: 13px;
}
.chat-script-panel .script-body {
  padding: 16px;
  white-space: pre-wrap;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 2;
  color: var(--text-secondary);
  flex: 1;
}
.chat-script-panel .script-body .scene-marker {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  margin: 20px 0 8px 0;
  letter-spacing: 0.3px;
}
.chat-script-panel .script-body .dialogue-name {
  color: var(--accent-hover);
  font-weight: 700;
}
.chat-script-panel .script-body .stage-direction {
  color: var(--text-muted);
  font-style: italic;
  font-size: 12px;
}

/* Loading dots */
.loading-dots { display: flex; gap: 4px; padding: 8px 0; }
.loading-dots span {
  width: 6px; height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: bounce 1.4s infinite both;
}
.loading-dots span:nth-child(2) { animation-delay: 0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0.32s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* ═══ Analysis Page ═══ */
.analysis-page {
  flex-direction: row;
  height: calc(100vh - 48px);
}

.analysis-sidebar {
  width: 280px;
  min-width: 280px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-header h3 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
.sidebar-header select {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
}

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px;
}

.sidebar-item {
  padding: 8px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease);
  margin-bottom: 1px;
}
.sidebar-item:hover { background: var(--bg-hover); }
.sidebar-item.active { background: var(--accent-dim); }

.sidebar-item .item-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-item .item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.analysis-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
}

/* ═══ Conti Page ═══ */
.conti-page {
  flex-direction: row;
  height: calc(100vh - 48px);
}

/* ─── Sub tabs (스토리보드/프로덕션/카메라 etc) ─── */
.sub-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 0 16px;
}
.sub-tab {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--duration-fast) var(--ease);
  font-weight: 500;
}
.sub-tab:hover { color: var(--text-secondary); }
.sub-tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }

/* ─── Storyboard cuts ─── */
.sb-cut-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  transition: all var(--duration-fast) var(--ease);
}
.sb-cut-card:hover { border-color: var(--border-light); box-shadow: var(--shadow-sm); }

.sb-cut-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.sb-cut-num {
  background: var(--accent);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
}
.sb-tag {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 11px;
  border: 1px solid var(--border);
}
.sb-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
}
.sb-btn:hover { background: var(--accent-dim); color: var(--accent); border-color: var(--accent-border); }

/* ═══ Present Page ═══ */
.present-page {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: calc(100vh - 48px);
  overflow: hidden;
}
.present-sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.present-sidebar .sidebar-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.present-sidebar .sidebar-header h3 { font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.present-sidebar .sidebar-header select {
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  animation: slideInRight 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ─── Responsive ─── */
@media (max-width: 1200px) {
  .chat-context { width: 220px; min-width: 220px; }
  .chat-script-panel { width: 280px; }
}
@media (max-width: 900px) {
  .chat-context { display: none; }
  .chat-script-panel { display: none !important; }
  .chat-messages { padding: 16px; }
  .chat-input-area { padding: 12px 16px; }
}