@import './tokens.css';

/* Base Reset & Apple Typography */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
  font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
}

html {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  min-height: 100%;
}

body {
  background-color: var(--bg-canvas);
  min-height: 100vh;
  min-height: -webkit-fill-available;
  color: var(--text-primary);
  display: flex;
  overflow: hidden;
  position: relative;
}

/* Scrollbar Minimalization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* Glass Surface Utility */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--specular-line), 0 8px 32px rgba(0, 0, 0, 0.45);
  border-radius: var(--radius-md);
}

/* ========================================================= */
/* 1. DESKTOP SIDEBAR                                       */
/* ========================================================= */
.app-sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  backdrop-filter: blur(36px);
  -webkit-backdrop-filter: blur(36px);
  border-right: 1px solid var(--border-subtle);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  flex-shrink: 0;
  z-index: 20;
}

.brand-header {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--border-medium);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.brand-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand-badge {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

.nav-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0 10px 8px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  text-align: left;
  width: 100%;
}

.nav-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.nav-btn.active {
  background: var(--accent-blue-subtle);
  color: #bfdbfe;
  font-weight: 500;
  border-color: rgba(41, 151, 255, 0.3);
}

.nav-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
  transition: background 0.15s ease;
}

.nav-btn.active .nav-indicator {
  background: var(--accent-blue);
  box-shadow: 0 0 8px var(--accent-blue);
}

.sidebar-footer {
  margin-top: auto;
  padding: 12px 10px;
  border-top: 1px solid var(--border-subtle);
  font-size: 11.5px;
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* ========================================================= */
/* 2. MAIN WORKSPACE CANVAS                                 */
/* ========================================================= */
.app-canvas {
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  padding: calc(var(--sat) + 24px) calc(var(--sar) + 36px) calc(var(--sab) + 32px) calc(var(--sal) + 36px);
  display: flex;
  flex-direction: column;
  gap: 24px;
  z-index: 10;
}

.view-panel {
  display: none;
  animation: viewFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.view-panel.active {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Top Header Bar */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  gap: 16px;
}

.header-title-group h1 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.header-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.status-pill:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.status-pill.capstone-active {
  background: var(--accent-purple-subtle);
  border-color: rgba(175, 82, 222, 0.35);
  color: #f3e8ff;
}

/* ========================================================= */
/* 3. TIMETABLE & OVERVIEW GRID                             */
/* ========================================================= */
.overview-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.schedule-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.day-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.day-header {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0 4px 4px;
  display: flex;
  justify-content: space-between;
}

.day-header.today {
  color: var(--accent-blue);
}

.course-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  user-select: none;
  position: relative;
}

.course-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-tertiary);
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
}

.card-time {
  font-size: 12px;
  color: var(--text-secondary);
}

.card-room {
  font-size: 11.5px;
  color: var(--text-tertiary);
}

/* ========================================================= */
/* 4. TASK WIDGET & SECONDARY PANEL                         */
/* ========================================================= */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.task-widget {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.widget-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.task-input-row {
  display: flex;
  gap: 8px;
}

.task-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s ease;
}

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

.task-add-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.task-add-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 280px;
  overflow-y: auto;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
}

.task-item.completed span {
  text-decoration: line-through;
  color: var(--text-disabled);
}

.task-checkbox {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid var(--border-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}

.task-item.completed .task-checkbox {
  background: var(--accent-emerald);
  border-color: var(--accent-emerald);
}

.task-item.completed .task-checkbox::after {
  content: '✓';
  font-size: 10px;
  color: #000;
  font-weight: 700;
}

.task-del {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 12px;
  padding: 2px 4px;
}

.task-del:hover {
  color: #ff453a;
}

/* ========================================================= */
/* 5. COURSE DETAIL & MARKDOWN INLINE READER                */
/* ========================================================= */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
}

.doc-reader-panel {
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.doc-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.doc-path-badge {
  font-size: 11.5px;
  color: var(--text-tertiary);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.doc-action-btn {
  font-size: 12px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.doc-action-btn:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
}

/* Clean Markdown Typography (Craft / Apple Notes style) */
.markdown-body {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-primary);
}

.markdown-body .prose-h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 16px 0 12px;
  letter-spacing: -0.02em;
  color: #fff;
}

.markdown-body .prose-h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 20px 0 8px;
  color: #f3f4f6;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 6px;
}

.markdown-body .prose-h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 14px 0 6px;
  color: var(--text-secondary);
}

.markdown-body .prose-p {
  margin: 8px 0;
  color: var(--text-secondary);
}

.markdown-body .prose-ul {
  padding-left: 20px;
  margin: 8px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.markdown-body .prose-li {
  color: var(--text-secondary);
}

.markdown-body .prose-quote {
  border-left: 3px solid var(--border-focus);
  padding: 6px 14px;
  margin: 12px 0;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.markdown-body .prose-divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 20px 0;
}

.markdown-body .prose-link {
  color: var(--accent-blue);
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.markdown-body .prose-link:hover {
  text-decoration: underline;
}

.markdown-body .prose-link.pdf-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(41, 151, 255, 0.08);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(41, 151, 255, 0.2);
  margin: 2px 0;
}

.markdown-body .prose-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  background: rgba(255, 255, 255, 0.07);
  padding: 2px 5px;
  border-radius: 4px;
  color: #e5e7eb;
}

/* Detail Side Sidebar */
.detail-side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail-info-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-item {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-label {
  color: var(--text-tertiary);
}

.info-val {
  color: var(--text-primary);
  font-weight: 500;
}

/* Weeks Archive List */
.weeks-archive-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.week-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.week-row.current {
  border-color: rgba(41, 151, 255, 0.35);
  background: rgba(41, 151, 255, 0.06);
}

.week-title-text {
  flex: 1;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 8px;
}

.week-badge {
  font-size: 10.5px;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-tertiary);
}

.week-row.current .week-badge {
  color: var(--accent-blue);
  background: rgba(41, 151, 255, 0.12);
  font-weight: 600;
}

/* ========================================================= */
/* 6. IPHONE 15 PRO BOTTOM TAB BAR                          */
/* ========================================================= */
.mobile-nav-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  background: rgba(13, 15, 22, 0.88);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border-top: 1px solid var(--border-subtle);
  padding: 8px 16px calc(var(--sab) + 4px);
  z-index: 100;
  justify-content: space-around;
  align-items: center;
}

.mobile-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-tertiary);
  font-size: 10.5px;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.15s ease;
  user-select: none;
}

.mobile-tab-item.active {
  color: var(--accent-blue);
}

.mobile-tab-icon {
  font-size: 18px;
  line-height: 1;
}

/* ========================================================= */
/* 7. RESPONSIVE MEDIA QUERIES                              */
/* ========================================================= */
@media (max-width: 768px) {
  html, body {
    overflow-x: hidden !important;
    overflow-y: auto !important;
    height: auto !important;
    min-height: 100% !important;
    -webkit-overflow-scrolling: touch !important;
  }

  body {
    display: block !important;
    flex-direction: column;
  }

  .app-sidebar {
    display: none;
  }

  .mobile-nav-bar {
    display: flex;
  }

  .app-canvas {
    height: auto !important;
    overflow-y: visible !important;
    padding: calc(var(--sat) + 16px) 16px calc(var(--sab) + 96px) 16px;
    gap: 20px;
    touch-action: pan-y;
  }

  .overview-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .schedule-columns {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .detail-layout {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .doc-reader-panel {
    padding: 20px 16px;
  }
}