/* pwa/css/styles.css - SmarterEveryDay Apple HIG Editorial Design System */

:root {
  /* System font stacks */
  --font-serif: 'New York', Charter, 'Bitstream Charter', Georgia, 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', sans-serif;

  /* Semantic Light Mode Colors */
  --bg-primary: #F8F9FA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #EBECEF;
  --bg-card: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  --text-primary: #1C1C1E;
  --text-secondary: #636366;
  --text-tertiary: #8E8E93;
  --text-quote: #2C2C2E;

  --accent: #007AFF;
  --accent-gold: #D97706;
  --accent-gold-bg: rgba(217, 119, 6, 0.08);
  --accent-gold-border: rgba(217, 119, 6, 0.25);
  --accent-green: #34C759;
  --accent-green-bg: rgba(52, 199, 89, 0.12);

  --border-color: rgba(60, 60, 67, 0.12);
  --border-subtle: rgba(60, 60, 67, 0.06);
  --divider: rgba(60, 60, 67, 0.08);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.12);

  --button-knew-border: #8E8E93;
  --button-learned-border: #D97706;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #000000;
    --bg-secondary: #121214;
    --bg-tertiary: #1C1C1E;
    --bg-card: #141417;
    --bg-glass: rgba(20, 20, 23, 0.85);

    --text-primary: #F5F5F7;
    --text-secondary: #98989D;
    --text-tertiary: #636366;
    --text-quote: #E5E5EA;

    --accent: #0A84FF;
    --accent-gold: #F59E0B;
    --accent-gold-bg: rgba(245, 158, 11, 0.12);
    --accent-gold-border: rgba(245, 158, 11, 0.28);
    --accent-green: #30D158;
    --accent-green-bg: rgba(48, 209, 88, 0.14);

    --border-color: rgba(255, 255, 255, 0.12);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --divider: rgba(255, 255, 255, 0.08);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.7);

    --button-knew-border: #636366;
    --button-learned-border: #F59E0B;
  }
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

/* App Container */
#app-container {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  max-width: 680px;
  margin: 0 auto;
  padding-top: max(16px, env(safe-area-inset-top));
  padding-bottom: max(28px, env(safe-area-inset-bottom));
  padding-left: max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
}

/* Discreet Gesture Hints */
.pull-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  margin: 4px auto 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}
.pull-hint:active {
  transform: scale(0.96);
  color: var(--text-primary);
}

.edge-hint {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 60px;
  background: var(--bg-tertiary);
  border-left: 1px solid var(--border-color);
  border-top-left-radius: 12px;
  border-bottom-left-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 50;
}
.edge-hint:hover, .edge-hint:active {
  opacity: 0.9;
  transform: translateY(-50%) scale(1.05);
}
.edge-hint svg {
  width: 12px;
  height: 12px;
  fill: var(--text-secondary);
}

/* Dynamic Gesture Indicators on drag */
#pull-indicator {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  padding: 10px 18px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  opacity: 0;
  pointer-events: none;
  z-index: 999;
  transition: opacity 0.15s ease;
}
#pull-indicator.ready {
  color: var(--accent);
  border-color: var(--accent);
}
#pull-indicator .icon {
  transition: transform 0.2s ease;
}
#pull-indicator.ready .icon {
  transform: rotate(180deg);
}

#edge-indicator {
  position: fixed;
  right: 0;
  top: 50%;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-left: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  padding: 12px 18px;
  border-top-left-radius: 24px;
  border-bottom-left-radius: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  opacity: 0;
  pointer-events: none;
  z-index: 999;
  transition: opacity 0.15s ease;
}
#edge-indicator.ready {
  color: var(--accent);
  border-color: var(--accent);
}

/* Daily Pill View */
.daily-pill-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Header & Meta */
.pill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--divider);
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-gold);
  background: var(--accent-gold-bg);
  padding: 4px 10px;
  border-radius: 14px;
  border: 1px solid var(--accent-gold-border);
}

.today-date {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: capitalize;
}

/* Category Tag */
.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* Editorial Typography */
.pill-title {
  font-family: var(--font-serif);
  font-size: 2.15rem;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.pill-hook {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-style: italic;
  line-height: 1.45;
  color: var(--text-secondary);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 2px solid var(--accent-gold);
}

.reading-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin-bottom: 20px;
}

.pill-body {
  font-size: 1.06rem;
  line-height: 1.68;
  color: var(--text-primary);
  margin-bottom: 28px;
  font-weight: 400;
  text-align: justify;
  text-justify: inter-word;
}

/* Takeaway Box */
.takeaway-card {
  background: var(--accent-gold-bg);
  border: 1px solid var(--accent-gold-border);
  border-radius: 16px;
  padding: 18px 20px;
  margin-bottom: 36px;
}
.takeaway-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-gold);
  margin-bottom: 6px;
}
.takeaway-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-quote);
}

/* Feedback & Voting Section */
.pill-actions {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--divider);
}

.reaction-prompt {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 14px;
  font-weight: 500;
}

.reaction-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.reaction-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 12px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 16px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-sm);
}

.reaction-btn .emoji {
  font-size: 1.5rem;
  transition: transform 0.2s ease;
}

.reaction-btn:active {
  transform: scale(0.96);
}

.reaction-btn.selected-knew {
  border-color: var(--accent);
  background: rgba(10, 132, 255, 0.08);
  color: var(--accent);
  box-shadow: 0 0 0 2px rgba(10, 132, 255, 0.2);
}

.reaction-btn.selected-learned {
  border-color: var(--accent-gold);
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
  box-shadow: 0 0 0 2px var(--accent-gold-border);
}

.reaction-btn.selected-learned .emoji,
.reaction-btn.selected-knew .emoji {
  transform: scale(1.15);
}

.daily-footer-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* Modals & Slide-overs */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Archive Sheet (Slides from top) */
.archive-sheet {
  width: 100%;
  max-width: 680px;
  max-height: 92vh;
  max-height: 92dvh;
  background: var(--bg-card);
  border-bottom-left-radius: 28px;
  border-bottom-right-radius: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  border-top: none;
  display: flex;
  flex-direction: column;
  transform: translateY(-100%);
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  padding-top: max(12px, env(safe-area-inset-top));
}

.modal-overlay.active .archive-sheet {
  transform: translateY(0);
}

/* Settings Sheet (Slides from right) */
.settings-sheet {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  box-shadow: var(--shadow-lg);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  padding: max(20px, env(safe-area-inset-top)) 24px max(30px, env(safe-area-inset-bottom));
}

.modal-overlay.active .settings-sheet {
  transform: translateX(0);
}

/* Modal Headers & Controls */
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--divider);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.close-btn {
  background: var(--bg-tertiary);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.close-btn:active {
  transform: scale(0.92);
}

/* Archive Controls (Search & Filter) */
.archive-controls {
  padding: 14px 20px;
  border-bottom: 1px solid var(--divider);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-input-wrap input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.92rem;
  outline: none;
  font-family: var(--font-sans);
}
.search-input-wrap .search-icon {
  position: absolute;
  left: 12px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.filter-pills-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.filter-pills-row::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  padding: 6px 12px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
}
.filter-chip.active {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}

/* Archive List */
.archive-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.archive-card {
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.archive-card:active {
  transform: scale(0.98);
}
.archive-card:hover {
  border-color: var(--accent);
}

.card-top-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.card-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
}
.card-reaction-badge {
  font-size: 0.9rem;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.card-takeaway {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.archive-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-tertiary);
  font-size: 0.95rem;
}

/* Settings Form Elements */
.settings-section {
  margin-bottom: 28px;
}
.settings-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.stat-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 14px;
  text-align: center;
}
.stat-val {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.stat-lbl {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

.topic-toggle-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--bg-tertiary);
  border-radius: 14px;
  margin-bottom: 8px;
  border: 1px solid var(--border-subtle);
}
.topic-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
}

/* iOS Style Switch */
.ios-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
}
.ios-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--text-tertiary);
  transition: .3s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 28px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
input:checked + .slider {
  background-color: var(--accent-green);
}
input:checked + .slider:before {
  transform: translateX(20px);
}

.action-button-danger {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid rgba(255, 69, 58, 0.3);
  color: #FF453A;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
}
.action-button-danger:active {
  background: rgba(255, 69, 58, 0.1);
}

/* Onboarding & Tutorial Overlays */
.overlay-fullscreen {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: max(24px, env(safe-area-inset-top)) 24px max(34px, env(safe-area-inset-bottom));
  overflow-y: auto;
  animation: fadeIn 0.3s ease;
}

.tutorial-card {
  max-width: 440px;
  width: 100%;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  border-radius: 24px;
  padding: 32px 24px;
}

.tutorial-badge {
  font-size: 2.6rem;
  margin-bottom: 12px;
}

.tutorial-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tutorial-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 24px;
}

.gesture-instructions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
  text-align: left;
}

.gesture-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--bg-tertiary);
  border-radius: 14px;
}

.gesture-icon {
  font-size: 1.5rem;
  width: 36px;
  text-align: center;
}

.gesture-item-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.gesture-item-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.btn-primary {
  width: 100%;
  padding: 15px;
  border-radius: 16px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn-primary:active {
  transform: scale(0.97);
  opacity: 0.9;
}

/* Onboarding Topic Selection Grid */
.onboarding-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  width: 100%;
  margin: 20px 0 28px;
}

.onboarding-topic-card {
  padding: 14px 10px;
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border-color);
  border-radius: 14px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}
.onboarding-topic-card.selected {
  background: var(--accent-gold-bg);
  border-color: var(--accent-gold);
}
.onboarding-topic-card .topic-emoji {
  font-size: 1.6rem;
  margin-bottom: 4px;
}
.onboarding-topic-card .topic-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Re-reading Modal from Archive */
.pill-reader-modal {
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  max-height: 90dvh;
  background: var(--bg-card);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: auto 16px;
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.pill-reader-content {
  overflow-y: auto;
  padding: 24px;
}