/* Digital ONION® Landing Page Styles */

/* CSS Variables */
:root {
  --bg: #0f0f11;          /* near-black */
  --ink: #f7f7f7;         /* off-white text */
  --muted: #b8b8bf;       /* subtle text */
  --brand: #7652B0;       /* onion purple */
  --brand-2: #9a78d1;     /* lighter accent */
  --radius: 22px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

/* Base Styles */
html, body {
  height: 100%;
}

body {
  margin: 0;
  background: radial-gradient(1200px 1200px at 90% 10%, rgba(154, 120, 209, .18), transparent 60%),
              radial-gradient(900px 900px at 10% 90%, rgba(118, 82, 176, .22), transparent 55%),
              var(--bg);
  color: var(--ink);
  font: 500 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden; /* keep to one screen */
  /* Mobile optimizations */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

/* Layout */
.wrap {
  min-height: 100dvh;
  max-height: 100dvh;
  display: grid;
  place-items: center;
  padding: clamp(16px, 3vw, 32px);
  /* Safe area support for iPhone X and newer */
  padding-left: max(clamp(16px, 3vw, 32px), env(safe-area-inset-left));
  padding-right: max(clamp(16px, 3vw, 32px), env(safe-area-inset-right));
  padding-top: max(clamp(16px, 3vw, 32px), env(safe-area-inset-top));
  padding-bottom: max(clamp(16px, 3vw, 32px), env(safe-area-inset-bottom));
}

.card {
  width: min(1100px, 92vw);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.5vw, 28px);
  align-items: center;
  background: rgba(255, 255, 255, .02);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3.2vw, 36px);
  position: relative;
  overflow: hidden;
}

/* Decorative onion rings */
.card::after {
  content: "";
  position: absolute;
  inset: auto -10% -35% auto;
  width: min(48vw, 520px);
  aspect-ratio: 1/1;
  background: url("images/onion-graphic-gray.png") center/contain no-repeat;
  opacity: .15;
  filter: grayscale(1);
  pointer-events: none;
  z-index: 1;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  z-index: 2;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand img {
  height: 42px;
  display: block;
}

.badge {
  font-size: .8rem;
  font-weight: 700;
  padding: .35rem .6rem;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, .04);
}

/* Navigation */
.cta-inline {
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: .85rem 1.1rem;
  border-radius: 12px;
  font-weight: 700;
  letter-spacing: .2px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  /* Touch optimization */
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
  min-height: 44px; /* iOS minimum touch target */
  box-sizing: border-box;
}

.btn.primary {
  background: linear-gradient(180deg, var(--brand-2), var(--brand));
  color: white;
  box-shadow: 0 6px 16px rgba(118, 82, 176, .35);
}

.btn.primary:active {
  transform: translateY(1px);
  box-shadow: 0 4px 12px rgba(118, 82, 176, .4);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, .18);
}

/* Main Content */
main {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(16px, 3vw, 36px);
  align-items: center;
  position: relative;
  z-index: 2;
}

/* Typography */
h1 {
  margin: 0 0 .3rem;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.15;
  letter-spacing: -.015em;
  -webkit-user-select: text;
  user-select: text;
}

p.lead {
  margin: 0 0 1rem;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--muted);
  -webkit-user-select: text;
  user-select: text;
}

/* Points List */
ul.points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: .6rem 0 0;
}

ul.points li {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 12px;
  padding: .7rem .8rem;
  font-size: .95rem;
}

/* Hero Image */
figure.hero {
  margin: 0;
  justify-self: end;
  position: relative;
  z-index: 3;
}

figure.hero img {
  width: min(540px, 40vw);
  max-width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, .45));
}

/* Footer */
footer {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
  margin-top: .5rem;
  font-size: .9rem;
  color: var(--muted);
}

footer a {
  color: inherit;
}

/* Keyboard Style */
.kbd {
  border: 1px solid rgba(255, 255, 255, .18);
  padding: .15rem .4rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, .04);
  font-size: .85em;
}

/* Media Queries */

/* Tablet and small desktop */
@media (max-width: 900px) {
  main {
    grid-template-columns: 1fr;
  }
  
  .card::after {
    inset: auto -20% -25% auto;
    width: 70vw;
  }
}

/* Mobile devices (including iPhone) */
@media (max-width: 768px) {
  body {
    overflow: auto; /* Allow scrolling on mobile */
  }
  
  .wrap {
    min-height: 100vh;
    max-height: none; /* Remove max-height constraint */
    padding: clamp(12px, 4vw, 20px);
  }
  
  .card {
    width: 100%;
    gap: clamp(20px, 5vw, 32px);
    padding: clamp(20px, 5vw, 28px);
    border-radius: 16px;
  }
  
  /* Header mobile optimizations */
  header {
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
    text-align: center;
  }
  
  .brand {
    justify-content: center;
    gap: 12px;
  }
  
  .brand img {
    height: 36px;
  }
  
  .badge {
    font-size: .75rem;
    padding: .3rem .5rem;
  }
  
  .cta-inline {
    justify-content: center;
  }
  
  /* Main content mobile */
  main {
    gap: clamp(24px, 6vw, 40px);
    text-align: center;
  }
  
  /* Typography mobile */
  h1 {
    font-size: clamp(24px, 6.5vw, 32px);
    line-height: 1.2;
    margin-bottom: 1rem;
  }
  
  p.lead {
    font-size: clamp(15px, 4vw, 17px);
    margin-bottom: 1.5rem;
  }
  
  /* Points list mobile */
  ul.points {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 1rem;
  }
  
  ul.points li {
    padding: 1rem;
    font-size: 1rem;
    text-align: left;
  }
  
  /* Hero image mobile */
  figure.hero {
    justify-self: center;
    order: -1; /* Move image above text on mobile */
  }
  
  figure.hero img {
    width: min(280px, 70vw);
    margin: 0 auto;
  }
  
  /* Footer mobile */
  footer {
    flex-direction: column;
    text-align: center;
    gap: 8px;
    margin-top: 1.5rem;
    font-size: .85rem;
  }
  
  /* Button mobile optimizations */
  .btn {
    padding: 1rem 1.5rem;
    font-size: 1rem;
    min-width: 200px;
  }
  
  /* Adjust decorative background for mobile */
  .card::after {
    inset: auto -30% -20% auto;
    width: min(60vw, 300px);
    opacity: .08;
  }
}

/* iPhone specific optimizations */
@media (max-width: 480px) {
  .wrap {
    padding: 16px;
  }
  
  .card {
    padding: 24px 20px;
    gap: 24px;
  }
  
  h1 {
    font-size: clamp(22px, 7vw, 28px);
  }
  
  .brand img {
    height: 32px;
  }
  
  ul.points li {
    padding: .9rem;
    font-size: .95rem;
  }
  
  figure.hero img {
    width: min(240px, 65vw);
  }
  
  .btn {
    padding: .9rem 1.3rem;
    font-size: .95rem;
    min-width: 180px;
  }
}

/* iPhone landscape mode */
@media (max-width: 896px) and (orientation: landscape) {
  .wrap {
    padding: 12px 20px;
  }
  
  .card {
    max-width: 800px;
    margin: 0 auto;
  }
  
  main {
    grid-template-columns: 1fr 0.8fr;
    gap: 32px;
    align-items: center;
  }
  
  figure.hero {
    order: 0;
    justify-self: end;
  }
  
  figure.hero img {
    width: min(200px, 35vw);
  }
  
  header {
    flex-direction: row;
    text-align: left;
  }
  
  .brand {
    justify-content: flex-start;
  }
}

/* High DPI displays (Retina) */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .brand img, figure.hero img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Animation (Respect reduced motion preference) */
@media (prefers-reduced-motion: no-preference) {
  .btn.primary {
    transition: transform .15s ease;
  }
  
  .btn.primary:hover {
    transform: translateY(-2px);
  }
}