/* ===================================================================
   uni — Official Showcase Stylesheet
   Crafted with refined Apple macOS Light Mode aesthetics
   =================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Color Palette - Apple Light Mode */
  --bg-canvas: #FBFBFD;
  --bg-subtle: #F5F5F7;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FAFAFC;
  --bg-elevated: #FFFFFF;

  --accent-blue: #0071E3;
  --accent-blue-hover: #0077ED;
  --accent-blue-subtle: #EBF5FF;
  --accent-blue-border: rgba(0, 113, 227, 0.25);

  --text-primary: #1D1D1F;
  --text-secondary: #515154;
  --text-muted: #86868B;

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-medium: rgba(0, 0, 0, 0.1);
  --border-hover: rgba(0, 0, 0, 0.16);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 32px -4px rgba(0, 0, 0, 0.07);
  --shadow-window: 0 28px 64px -12px rgba(0, 0, 0, 0.14), 0 0 0 1px rgba(0, 0, 0, 0.06);
  --shadow-pill: 0 16px 40px -4px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.08);

  /* Easing */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s var(--ease-smooth);
  --transition-spring: 0.35s var(--ease-spring);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  background-color: var(--bg-canvas);
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Typography Utilities */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  letter-spacing: -0.025em;
  font-weight: 350;
}

/* ===================================================================
   Header & Glass Navbar
   =================================================================== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 24px;
}

.nav-container {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 9999px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: all var(--transition-fast);
}

.nav-container:hover {
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition-spring);
}

.nav-brand:hover .brand-icon {
  transform: scale(1.05);
}

.brand-slash {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 1.15rem;
  letter-spacing: -0.06em;
  color: var(--text-primary);
  opacity: 0.9;
}

.brand-name {
  font-weight: 400;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.brand-tag {
  font-size: 0.65rem;
  font-weight: 450;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--bg-subtle);
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 400;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Language Switcher Pill */
.lang-switch-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  font-size: 0.78rem;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.lang-switch-pill:hover {
  background: #EAEAEA;
  border-color: var(--border-medium);
}

.lang-option {
  color: var(--text-muted);
  font-weight: 450;
  transition: color var(--transition-fast);
}

.lang-option.active {
  color: var(--text-primary);
  font-weight: 500;
}

.lang-separator {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.btn-nav-download {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #121214;
  color: #FFFFFF;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 450;
  border-radius: 9999px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-fast);
}

.btn-nav-download:hover {
  background: #27272A;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

/* ===================================================================
   Hero Section
   =================================================================== */
.hero-section {
  padding: 60px 0 30px;
}

.hero-content {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 6px;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.badge-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 9999px;
  background: #F4F4F5;
  color: #18181B;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: clamp(2.4rem, 5.2vw, 3.8rem);
  line-height: 1.12;
  font-weight: 300;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -0.035em;
}

.hero-title-accent {
  font-weight: 400;
  background: linear-gradient(180deg, #18181B 20%, #63636E 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  line-height: 1.65;
  color: #52525B;
  font-weight: 300;
  letter-spacing: -0.005em;
  margin-bottom: 34px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

/* Primary Obsidian Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: #121214;
  color: #FFFFFF;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 450;
  font-size: 0.95rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: #27272A;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary .btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-primary .btn-text strong {
  font-size: 0.92rem;
  line-height: 1.2;
  font-weight: 450;
}

.btn-primary .btn-text small {
  font-size: 0.72rem;
  opacity: 0.8;
  font-weight: 300;
}

/* Secondary White Card Button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  background: #FFFFFF;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 450;
  font-size: 0.92rem;
  border: 1px solid var(--border-medium);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-subtle);
  border-color: rgba(0, 0, 0, 0.14);
  transform: translateY(-1px);
}

.btn-secondary .btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-secondary .btn-text strong {
  font-size: 0.92rem;
  line-height: 1.2;
  font-weight: 450;
}

.btn-secondary .btn-text small {
  font-size: 0.72rem;
  opacity: 0.75;
  font-weight: 300;
}

/* Stats Row */
.hero-stats {
  display: inline-flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 14px 28px;
  box-shadow: var(--shadow-sm);
  gap: 28px;
  margin-bottom: 50px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 300;
}

.stat-divider {
  width: 1px;
  height: 28px;
  background-color: var(--border-subtle);
}

/* ===================================================================
   Live Interactive Mockup Showcase (macOS Light Window)
   =================================================================== */
.hero-window-wrapper {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding-top: 24px;
}

/* Floating Pill Notification HUD (Dynamic Island) - 100% SOLID OPAQUE */
.floating-pill-hud {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px 8px 12px;
  background-color: #FFFFFF !important; /* 100% SOLID OPAQUE */
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 9999px;
  box-shadow: var(--shadow-pill);
  transition: all var(--transition-spring);
  cursor: default;
}

.pill-badge-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #10B981;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pill-text-content {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.pill-text-content strong {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.2;
}

.pill-text-content span {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.2;
  font-weight: 300;
}

.pill-btn-action {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 450;
  color: var(--accent-blue);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-left: 4px;
}

.pill-btn-action:hover {
  background: var(--accent-blue-subtle);
}

/* macOS Window Frame */
.mac-window {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: var(--shadow-window);
  border: 1px solid rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: left;
}

.window-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #F6F6F6;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  user-select: none;
}

.traffic-lights {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 80px;
}

.traffic-light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.traffic-light.red { background: #FF5F56; }
.traffic-light.yellow { background: #FFBD2E; }
.traffic-light.green { background: #27C93F; }

.window-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.title-app-icon {
  width: 15px;
  height: 15px;
  border-radius: 3px;
}

.titlebar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 80px;
  justify-content: flex-end;
}

.kbd-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  padding: 2px 6px;
  border-radius: 4px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--text-muted);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}

/* Window Content Layout */
.window-body {
  display: grid;
  grid-template-columns: 210px 1fr;
  min-height: 520px;
  background: #FFFFFF;
}

/* Mock Sidebar */
.mock-sidebar {
  background: #F7F7F9;
  border-right: 1px solid rgba(0, 0, 0, 0.06);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--text-muted);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.sidebar-search kbd {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  background: var(--bg-subtle);
  padding: 1px 4px;
  border-radius: 3px;
}

.sidebar-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.group-title {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0 8px 4px;
  letter-spacing: 0.06em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 350;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-item:hover {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-primary);
}

.nav-item.active {
  background: #FFFFFF;
  color: var(--accent-blue);
  font-weight: 450;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.badge-count {
  margin-left: auto;
  font-size: 0.68rem;
  font-weight: 500;
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-secondary);
  padding: 1px 6px;
  border-radius: 9999px;
}

/* Mock Main View */
.mock-main {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #FFFFFF;
}

/* Banner */
.mock-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: #FBFBFD;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 10px;
}

.banner-date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.banner-day-name {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--accent-blue);
  letter-spacing: 0.04em;
}

.banner-day-number {
  font-size: 1.22rem;
  font-weight: 250;
  line-height: 1;
  color: var(--text-primary);
}

.banner-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.banner-top-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-today {
  font-size: 0.62rem;
  font-weight: 500;
  background: #18181B;
  color: #FFFFFF;
  padding: 1px 5px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.banner-full-date {
  font-size: 0.8rem;
  font-weight: 350;
  color: var(--text-primary);
}

.banner-greeting {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-style: italic;
  font-weight: 300;
}

.banner-btn-group {
  margin-left: auto;
}

.mock-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  background: #121214;
  color: #FFFFFF;
  border: none;
  border-radius: 6px;
  font-size: 0.76rem;
  font-weight: 450;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mock-btn-primary:hover {
  background: #27272A;
}

/* Stats Row */
.mock-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.mock-stat-card {
  padding: 12px 14px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.card-label {
  font-size: 0.7rem;
  font-weight: 350;
  color: var(--text-muted);
}

.card-num {
  font-size: 1.25rem;
  font-weight: 320;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.card-num small {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 300;
}

.card-sub {
  font-size: 0.68rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.card-sub.green { color: #059669; font-weight: 450; }
.card-sub.orange { color: #D97706; font-weight: 450; }

/* Outlook Card */
.mock-outlook-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.outlook-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.outlook-title-area {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.74rem;
  color: var(--text-primary);
}

.outlook-pill {
  font-size: 0.6rem;
  font-weight: 500;
  background: #18181B;
  color: #FFFFFF;
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

.unread-pill {
  font-size: 0.62rem;
  font-weight: 450;
  background: var(--accent-blue-subtle);
  color: var(--accent-blue);
  padding: 1px 6px;
  border-radius: 9999px;
}

.btn-micro {
  font-size: 0.7rem;
  font-weight: 450;
  padding: 3px 8px;
  background: var(--bg-subtle);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 4px;
  color: var(--text-secondary);
  cursor: pointer;
}

.btn-micro:hover {
  background: #EBEBEB;
}

.outlook-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px;
  background: #FBFBFD;
  border-radius: 6px;
}

.mail-avatar {
  font-size: 1.1rem;
}

.mail-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mail-top {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
}

.mail-top strong {
  color: var(--text-primary);
}

.mail-course-badge {
  font-size: 0.64rem;
  background: rgba(0, 0, 0, 0.05);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--text-secondary);
}

.mail-time {
  margin-left: auto;
  font-size: 0.66rem;
  color: var(--text-muted);
}

.mail-subj {
  font-size: 0.73rem;
  font-weight: 450;
  color: var(--text-primary);
}

.mail-snippet {
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.35;
  font-weight: 300;
}

/* Courses & Files Section */
.mock-courses-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-heading {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.mock-course-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.course-pill-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot.blue { background: #0071E3; }
.dot.purple { background: #7C3AED; }

.course-text {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-text strong {
  font-size: 0.76rem;
  font-weight: 400;
  color: var(--text-primary);
}

.course-text small {
  font-size: 0.66rem;
  color: var(--text-muted);
  font-weight: 300;
}

.finder-tag {
  font-size: 0.68rem;
  font-weight: 450;
  color: var(--accent-blue);
  background: var(--accent-blue-subtle);
  padding: 2px 7px;
  border-radius: 4px;
}

/* ===================================================================
   Features Bento Grid Section
   =================================================================== */
.features-section {
  padding: 90px 0 60px;
  background: var(--bg-subtle);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.section-header-center {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 450;
  color: #18181B;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  padding: 3px 10px;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}

.section-title-center {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 300;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.section-subtitle-center {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.bento-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 14px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.bento-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 0, 0, 0.12);
}

.bento-wide {
  grid-column: span 2;
}

.bento-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bento-tag {
  font-size: 0.7rem;
  font-weight: 450;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bento-header h3 {
  font-size: 1.25rem;
  line-height: 1.3;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.bento-header p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.65;
}

.bento-visual {
  background: #FBFBFD;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 10px;
  padding: 16px;
}

/* Bento Screenshot Showcase with Hover Zoom */
.bento-screenshot-wrapper {
  position: relative;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  background: #0F172A;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  cursor: zoom-in;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease;
}

.bento-screenshot-wrapper:hover {
  transform: translateY(-4px) scale(1.015);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(99, 102, 241, 0.12);
  border-color: rgba(99, 102, 241, 0.35);
}

.bento-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.35s ease;
}

.bento-screenshot-wrapper:hover .bento-img {
  transform: scale(1.035);
}

.screenshot-hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.15) 50%, transparent 100%);
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 16px 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.bento-screenshot-wrapper:hover .screenshot-hover-overlay {
  opacity: 1;
}

.screenshot-hover-overlay .zoom-icon {
  font-size: 0.95rem;
  margin-right: 6px;
}

.screenshot-hover-overlay .zoom-text {
  font-size: 0.82rem;
  font-weight: 500;
  color: #FFFFFF;
  letter-spacing: 0.01em;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: inline-flex;
  align-items: center;
}

/* Screenshot Fullscreen Lightbox Modal */
.screenshot-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.screenshot-lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.lightbox-dialog {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  width: 100%;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.screenshot-lightbox.active .lightbox-dialog {
  transform: scale(1);
}

.lightbox-close-btn {
  position: absolute;
  top: -48px;
  right: 0;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.08);
}

.lightbox-img-wrapper {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #0F172A;
}

.lightbox-image {
  display: block;
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
}

.lightbox-caption {
  margin-top: 14px;
  font-size: 0.95rem;
  font-weight: 450;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.01em;
}

.cal-sync-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cal-sync-row .sync-icon {
  font-size: 1.2rem;
}

.cal-sync-row div {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cal-sync-row strong {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-primary);
}

.cal-sync-row small {
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--text-muted);
}

.sync-status-badge {
  font-size: 0.7rem;
  font-weight: 450;
  background: #ECFDF5;
  color: #059669;
  padding: 3px 8px;
  border-radius: 4px;
}

.mail-badge-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 450;
  color: var(--text-secondary);
}

.mail-check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ECFDF5;
  color: #059669;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 500;
}

.file-drop-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
  padding: 14px;
}

.file-drop-icon {
  font-size: 1.8rem;
}

.file-drop-box strong {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-primary);
}

.file-drop-box small {
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--text-muted);
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 9999px;
  box-shadow: var(--shadow-sm);
  font-size: 0.8rem;
  color: var(--text-primary);
}

.shortcuts-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.shortcut-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  text-align: center;
}

.shortcut-box kbd {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  background: var(--bg-subtle);
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--text-primary);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
}

.shortcut-box span {
  font-size: 0.74rem;
  font-weight: 350;
  color: var(--text-secondary);
}

.gpa-card-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.gpa-preview-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 12px 8px;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 8px;
  text-align: center;
}

.gpa-preview-item .gpa-tag {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.gpa-preview-item strong {
  font-size: 1.15rem;
  color: var(--text-primary);
  font-weight: 320;
  letter-spacing: -0.02em;
}

.gpa-preview-item.highlight {
  background: #F4F4F5;
  border-color: rgba(0, 0, 0, 0.1);
}

.gpa-preview-item.highlight strong {
  color: #18181B;
}

/* ===================================================================
   Download Section & DMG Showcase
   =================================================================== */
.download-section {
  padding: 80px 0 100px;
}

.download-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  padding: 50px 30px;
  text-align: center;
  box-shadow: var(--shadow-md);
  max-width: 820px;
  margin: 0 auto;
}

.download-app-icon {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  margin-bottom: 20px;
}

.download-title {
  font-size: 2.2rem;
  font-weight: 300;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.download-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 580px;
  margin: 0 auto 34px;
  line-height: 1.6;
}

.download-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn-large {
  padding: 14px 28px;
  border-radius: 14px;
}

/* DMG Showcase Window */
.dmg-showcase-container {
  margin: 36px auto 32px;
  max-width: 620px;
}

.dmg-mockup-window {
  background: #FFFFFF;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  text-align: left;
  transition: transform var(--transition-spring), box-shadow var(--transition-spring);
}

.dmg-mockup-window:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 50px -12px rgba(0, 0, 0, 0.12), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.dmg-mockup-titlebar {
  display: flex;
  align-items: center;
  padding: 9px 14px;
  background: #F6F6F8;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
}

.dmg-mockup-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.dmg-title-icon {
  font-size: 0.82rem;
}

.dmg-mockup-body {
  position: relative;
  width: 100%;
  line-height: 0;
  background: #FFFFFF;
}

.dmg-mockup-img {
  width: 100%;
  height: auto;
  display: block;
}

.dmg-showcase-hint {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.45;
}

.install-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.step {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 300;
}

.step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: 1px solid rgba(0, 0, 0, 0.1);
  font-weight: 450;
  font-size: 0.72rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-arrow {
  color: var(--text-muted);
}

/* ===================================================================
   Footer
   =================================================================== */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background: #FFFFFF;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.95rem;
}

.footer-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
}

.footer-left p {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-muted);
}

.footer-credit {
  font-size: 0.82rem !important;
  color: var(--text-secondary) !important;
  margin-top: 4px;
}

.footer-credit a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 450;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

.footer-credit a:hover {
  text-decoration: underline;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-links a {
  font-size: 0.82rem;
  font-weight: 350;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-links .footer-portfolio-link {
  color: var(--text-primary);
  font-weight: 450;
}

/* ===================================================================
   FAQ Section (Schema & SEO Optimized)
   =================================================================== */
.faq-section {
  padding: 80px 0 100px;
  background: var(--bg-canvas);
}

.faq-accordion-container {
  max-width: 780px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}

.faq-item[open] {
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: color var(--transition-fast);
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question:focus-visible {
  outline: 2px solid #6366F1;
  outline-offset: -2px;
}

.faq-icon {
  font-size: 0.85rem;
  font-weight: 600;
  color: #6366F1;
  background: rgba(99, 102, 241, 0.08);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.2s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  background: rgba(99, 102, 241, 0.16);
}

.faq-answer {
  padding: 0 22px 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

.faq-answer p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-secondary);
  font-weight: 350;
  margin: 14px 0 0;
}

/* ===================================================================
   Legal & Privacy Policy Pages
   =================================================================== */
.legal-main {
  padding: 60px 0 100px;
  background: var(--bg-canvas);
  min-height: 80vh;
}

.legal-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

.legal-header {
  margin-bottom: 48px;
  text-align: left;
}

.legal-title {
  font-size: 2.3rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-top: 14px;
  margin-bottom: 8px;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.legal-updated {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 300;
}

.legal-section {
  margin-bottom: 44px;
}

.legal-section h2 {
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.legal-section h3 {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 22px 0 12px;
}

.legal-section p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-weight: 350;
}

.legal-section ul {
  margin: 14px 0 20px 24px;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.94rem;
}

.legal-section li {
  margin-bottom: 8px;
}

.legal-callout {
  background: #F8FAFC;
  border-left: 4px solid #3B82F6;
  padding: 16px 20px;
  border-radius: 8px;
  margin: 18px 0 24px;
}

.legal-callout strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.legal-callout p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.55;
}

.legal-callout.success {
  border-left-color: #10B981;
  background: #F0FDF4;
}

.cookie-table-wrapper {
  overflow-x: auto;
  margin: 22px 0 26px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  background: #FFFFFF;
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.cookie-table th {
  background: #F8FAFC;
  padding: 12px 16px;
  font-weight: 500;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.cookie-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
  vertical-align: top;
  line-height: 1.55;
}

.cookie-table tr:last-child td {
  border-bottom: none;
}

.cookie-table code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-primary);
}

.badge-tech {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  background: #EFF6FF;
  color: #1D4ED8;
  white-space: nowrap;
}

.legal-back-row {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

/* ===================================================================
   Responsive Breakpoints
   =================================================================== */
@media (max-width: 900px) {
  .window-body {
    grid-template-columns: 1fr;
  }
  
  .mock-sidebar {
    display: none;
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }

  .bento-wide {
    grid-column: span 1;
  }

  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .hero-stats {
    gap: 16px;
    padding: 12px 18px;
  }

  .stat-divider {
    display: none;
  }

  .mock-stats-row {
    grid-template-columns: 1fr;
  }

  .mock-course-cards {
    grid-template-columns: 1fr;
  }

  .shortcuts-row {
    grid-template-columns: 1fr;
  }
}