/* ==========================================================================
   Afterline Prop Suite — High-Craft Design System
   Crafted following Emil Kowalski's motion tokens & anti-slop frontend principles
   ========================================================================== */

:root {
  /* Color Palette - Dark Cinema Canvas with Tactile Highlights */
  --bg-base: #090a0d;
  --bg-surface: #111318;
  --bg-surface-elevated: #181b22;
  --bg-surface-hover: #20242e;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-highlight: rgba(255, 255, 255, 0.28);
  
  --ink-primary: #f8fafc;
  --ink-secondary: #94a3b8;
  --ink-muted: #64748b;
  --ink-faint: #475569;
  
  /* Module Accents */
  --accent-messages: #38bdf8;  /* Cyan */
  --accent-call: #60a5fa;      /* Blue */
  --accent-dialer: #a78bfa;    /* Purple */
  --accent-ride: #fbbf24;      /* Amber */
  --accent-primary: #38bdf8;
  
  /* Motion Tokens (Emil Kowalski Design Engineering) */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);
  --dur-fast: 160ms;
  --dur-base: 240ms;
  --dur-smooth: 360ms;
  
  /* Layout & Sizing */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  /* Glass Refraction */
  --glass-bg: rgba(17, 19, 24, 0.75);
  --glass-border: 1px solid rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  background-color: var(--bg-base);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-base);
  color: var(--ink-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100dvh;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  color: var(--ink-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

p {
  color: var(--ink-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Navbar */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(9, 10, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  height: 72px;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-title {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.35em;
  color: var(--ink-primary);
  text-transform: uppercase;
}

.brand-badge {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink-primary);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--ink-secondary);
}

.nav-link:hover {
  color: var(--ink-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.925rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  user-select: none;
}

/* Emil tactile button press rule */
.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background-color: var(--ink-primary);
  color: var(--bg-base);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  background-color: #ffffff;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.22);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--ink-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-highlight);
}

/* Hero Section */
.hero {
  padding-top: 4.5rem;
  padding-bottom: 5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero-title span {
  color: var(--accent-messages);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--ink-secondary);
  max-width: 54ch;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* Phone Mockup Frame */
.mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-device {
  position: relative;
  width: 320px;
  max-width: 100%;
  aspect-ratio: 1284 / 2778;
  border-radius: 46px;
  background: #0f1015;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9),
              0 0 0 10px #1e222b,
              0 0 0 12px #2d3340;
  overflow: hidden;
  transition: transform var(--dur-smooth) var(--ease-out);
}

.phone-screen {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Showcase Section with Tabs */
.showcase-section {
  padding: 6rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem auto;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  background: var(--bg-surface-elevated);
  padding: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  width: fit-content;
  margin: 0 auto 3rem auto;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.35rem;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink-secondary);
  border: none;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}

.tab-btn:hover {
  color: var(--ink-primary);
}

.tab-btn.active {
  background: var(--ink-primary);
  color: var(--bg-base);
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.15);
}

.tab-btn:active {
  transform: scale(0.97);
}

.tab-icon {
  width: 20px;
  height: 20px;
  border-radius: 5px;
}

.showcase-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.showcase-card {
  display: none;
  animation: fadeIn var(--dur-base) var(--ease-out) forwards;
}

.showcase-card.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.feature-title {
  font-size: 2.2rem;
  margin-bottom: 1.25rem;
  letter-spacing: -0.025em;
}

.feature-description {
  margin-bottom: 1.75rem;
  font-size: 1.1rem;
  color: var(--ink-secondary);
  line-height: 1.65;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-list-item {
  position: relative;
  padding-left: 1.75rem;
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.6;
}

.feature-list-item::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 600;
}

/* Bento Grid */
.bento-section {
  padding: 6rem 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.bento-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.bento-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.bento-col-8 { grid-column: span 8; }
.bento-col-4 { grid-column: span 4; }
.bento-col-6 { grid-column: span 6; }
.bento-col-12 { grid-column: span 12; }

.bento-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 1.5rem;
}

.bento-title {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.bento-text {
  font-size: 0.95rem;
  color: var(--ink-secondary);
}

/* Workflows / 3 Steps */
.workflow-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-surface) 100%);
  border-top: 1px solid var(--border-subtle);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.step-card {
  padding: 2rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  position: relative;
}

.step-num {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--ink-faint);
  line-height: 1;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Unlisted Distribution Card */
.security-banner {
  margin: 5rem 0;
  background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), transparent 60%),
              var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
}

.security-content h3 {
  font-size: 1.85rem;
  margin-bottom: 1rem;
}

/* Privacy Policy Layout */
.privacy-page {
  padding: 4rem 0 7rem 0;
  max-width: 800px;
  margin: 0 auto;
}

.privacy-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.privacy-title {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.privacy-meta {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.privacy-body h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--ink-primary);
}

.privacy-body h3 {
  font-size: 1.2rem;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--ink-primary);
}

.privacy-body p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.7;
}

.privacy-body ul {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--ink-secondary);
}

.privacy-body li {
  margin-bottom: 0.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-messages);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.back-link:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 0.75rem;
  max-width: 38ch;
  font-size: 0.925rem;
}

.footer-col h4 {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  color: var(--ink-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.footer-link:hover {
  color: var(--ink-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid, .showcase-display, .security-banner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .bento-col-8, .bento-col-4, .bento-col-6 {
    grid-column: span 12;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .phone-device {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .tabs-nav {
    flex-wrap: wrap;
    border-radius: var(--radius-md);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Reduced Motion Support (Mandatory per Emil Kowalski) */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}