/* Syntra marketing site — dark, monolithic, mobile-first.
   Mirrors the app's dark-mode tokens (bg #0E0F12, accent #2D5BFF). */

:root {
  --bg: #0E0F12;
  --bg-elevated: #16181C;
  --bg-recessed: #1F2126;
  --fg: #FFFFFF;
  --fg-secondary: rgba(235, 235, 245, 0.7);
  --fg-tertiary: rgba(235, 235, 245, 0.4);
  --stroke: rgba(255, 255, 255, 0.1);
  --accent: #2D5BFF;
  --accent-purple: #7C3AED;
  --accent-green: #3DB47A;
  --max-width: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

/* ───── Header ───── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  background: rgba(14, 15, 18, 0.7);
  border-bottom: 1px solid var(--stroke);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 800;
  letter-spacing: 4px;
  font-size: 22px;
}
.nav-links {
  display: flex;
  gap: 24px;
  font-size: 15px;
  color: var(--fg-secondary);
}
.nav-links a:hover { color: var(--fg); }

/* ───── Hero ───── */
.hero {
  padding: 96px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(45, 91, 255, 0.18) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}
.hero img.logo {
  width: 116px;
  height: 116px;
  border-radius: 26px;
  margin-bottom: 28px;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}
.hero h1 {
  font-size: clamp(40px, 7vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 0 0 20px;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255,255,255,0.7) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  color: var(--fg-secondary);
  font-size: clamp(17px, 2.2vw, 21px);
  max-width: 580px;
  margin: 0 auto 36px;
}
.download-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border: 1px solid var(--stroke);
  border-radius: 14px;
  background: var(--bg-elevated);
  transition: transform 120ms ease, background 120ms ease;
}
.store-btn:hover {
  background: var(--bg-recessed);
  transform: translateY(-1px);
}
.store-btn-text { text-align: left; line-height: 1.15; }
.store-btn-small { font-size: 11px; color: var(--fg-secondary); letter-spacing: 0.4px; }
.store-btn-big { font-size: 18px; font-weight: 700; }
.store-btn svg { width: 28px; height: 28px; }

/* ───── Screenshot gallery ───── */
.screenshots-section {
  padding: 64px 24px 96px;
  border-top: 1px solid var(--stroke);
  max-width: var(--max-width);
  margin: 0 auto;
}
.screenshots-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.screenshots-arrows {
  display: flex;
  gap: 10px;
}
.scroll-arrow {
  width: 44px;
  height: 44px;
  border-radius: 22px;
  border: 1px solid var(--stroke);
  background: var(--bg-elevated);
  color: var(--fg);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    background 160ms ease,
    transform 160ms ease,
    border-color 160ms ease;
}
.scroll-arrow:hover {
  background: var(--bg-recessed);
  border-color: var(--accent);
}
.scroll-arrow:active {
  transform: scale(0.94);
}
.scroll-arrow svg {
  width: 20px;
  height: 20px;
}

/* The scroll viewport. We use scroll-snap-align: center so each
   card lands centered. The infinite-scroll JS clones items and
   silently jumps the scroll position when the user nears either
   edge of the cloned set. */
.screenshots-wrap {
  overflow-x: auto;
  overflow-y: visible;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -24px;
  padding: 32px 0 48px;
}
.screenshots-wrap::-webkit-scrollbar { display: none; }

/* Track. The padding here is what lets the FIRST and LAST cards
   reach the center of the viewport — without it they could only
   scroll-snap to the viewport edge. */
.screenshots {
  display: inline-flex;
  gap: 32px;
  padding: 0 calc(50% - 160px);
  align-items: center;
}

/* Each card: phone frame on top + title + description below. By
   default cards are scaled down + blurred (peek state). Only the
   one with .active drops the blur and scales up — which is the
   center card whichever one that happens to be after a scroll. */
.phone-card {
  flex: 0 0 320px;
  margin: 0;
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
  /* Peek state */
  transform: scale(0.78);
  filter: blur(6px) brightness(0.65);
  opacity: 0.55;
  transition:
    transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1),
    filter 420ms cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: transform, filter, opacity;
}
.phone-card.active {
  transform: scale(1);
  filter: blur(0px) brightness(1);
  opacity: 1;
}
.phone-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
  text-align: center;
}
.phone-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-secondary);
  text-align: center;
  /* Description fades in only on the active card so the side
     peeks read as visual context, not crowded reading material. */
  opacity: 0;
  transition: opacity 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.phone-card.active p { opacity: 1; }

/* iPhone-shaped frame. The screenshot inside fills the frame edge-
   to-edge with only a tiny 4px padding for the rounded-corner
   nesting; the frame itself is just a hairline border + glow.
   Result: no visible "bezel band" around the screenshot. */
.phone {
  width: 100%;
  border-radius: 44px;
  background: var(--bg);
  border: 1px solid var(--stroke);
  padding: 4px;
  box-shadow:
    0 60px 120px -30px rgba(45, 91, 255, 0.22),
    0 30px 60px -20px rgba(0, 0, 0, 0.6);
  position: relative;
}
/* No CSS-drawn notch — the actual screenshots already include the
   iOS status bar / notch in the PNG itself, so an extra overlay
   would just sit on top and look redundant. */
.phone-shot img {
  width: 100%;
  /* Aspect ratio matches the cropped screenshots (status bar removed)
     so app content fills the frame edge-to-edge with no empty top
     band. Slight per-image variation (~9:18.2-18.5) is absorbed by
     object-fit: cover. */
  aspect-ratio: 9 / 18.3;
  object-fit: cover;
  object-position: top;
  /* Inner radius = outer radius (44) minus padding (4) so the
     screenshot's rounded corners nest cleanly inside the bezel. */
  border-radius: 40px;
  display: block;
  background: var(--bg);
}

/* Tablet — slightly smaller phones, less padding. */
@media (max-width: 880px) {
  .screenshots { padding: 0 calc(50% - 140px); gap: 24px; }
  .phone-card { flex-basis: 280px; }
}

/* Mobile — single card centered, side peeks visible only as a hint
   of the next card on the right edge. */
@media (max-width: 540px) {
  .screenshots-section { padding: 48px 20px 64px; }
  .screenshots { padding: 0 calc(50% - 110px); gap: 20px; }
  .phone-card { flex-basis: 220px; }
  .screenshots-arrows { display: none; }
}

/* ───── Features ───── */
section.features {
  padding: 80px 24px;
  border-top: 1px solid var(--stroke);
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-title {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.section-sub {
  color: var(--fg-secondary);
  font-size: 18px;
  margin: 0 0 56px;
  max-width: 600px;
}
.features-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.feature-card {
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  border-radius: 20px;
  padding: 28px;
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(45, 91, 255, 0.18);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg { width: 24px; height: 24px; }
.feature-title {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 8px;
}
.feature-body {
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

/* ───── Reviews ───── */
section.reviews {
  padding: 80px 24px;
  border-top: 1px solid var(--stroke);
  background: linear-gradient(180deg, transparent 0%, rgba(45, 91, 255, 0.04) 100%);
}
.review-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.review {
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 24px;
}
.review-stars { color: #F5C518; font-size: 16px; letter-spacing: 2px; margin-bottom: 10px; }
.review-text { font-size: 16px; line-height: 1.55; margin: 0 0 14px; }
.review-author { font-size: 14px; color: var(--fg-tertiary); }

/* ───── Pricing ───── */
section.pricing {
  padding: 80px 24px;
  border-top: 1px solid var(--stroke);
  text-align: center;
}
.plans {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  max-width: 720px;
  margin: 0 auto;
}
.plan {
  background: var(--bg-elevated);
  border: 1px solid var(--stroke);
  border-radius: 20px;
  padding: 32px 28px;
  text-align: left;
}
.plan-pro {
  border-color: var(--accent);
  background: linear-gradient(170deg, rgba(45,91,255,0.12), var(--bg-elevated));
}
.plan-name { font-size: 13px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--fg-tertiary); }
.plan-price { font-size: 36px; font-weight: 800; margin: 8px 0 14px; letter-spacing: -0.02em; }
.plan-price small { font-size: 14px; color: var(--fg-secondary); font-weight: 500; letter-spacing: 0; }
.plan ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 15px;
  color: var(--fg-secondary);
}
.plan ul li { padding: 6px 0; padding-left: 22px; position: relative; }
.plan ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 6px;
  color: var(--accent-green);
  font-weight: 700;
}

/* ───── Footer ───── */
footer {
  padding: 48px 24px 64px;
  border-top: 1px solid var(--stroke);
  text-align: center;
  color: var(--fg-tertiary);
  font-size: 14px;
}
footer .links {
  margin-top: 12px;
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}
footer .links a:hover { color: var(--fg); }

/* ───── Legal pages ───── */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}
.legal h1 {
  font-size: 40px;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.legal p.updated {
  color: var(--fg-tertiary);
  margin: 0 0 32px;
  font-size: 14px;
}
.legal h2 {
  font-size: 22px;
  margin: 36px 0 12px;
  letter-spacing: -0.01em;
}
.legal p, .legal li {
  color: var(--fg-secondary);
  font-size: 16px;
  line-height: 1.7;
}
.legal ul { padding-left: 22px; }
.legal a { color: var(--accent); }
.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--fg-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}
.back:hover { color: var(--fg); }

/* ───── Mobile tweaks ───── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 64px 20px 32px; }
  .preview { padding: 16px 20px 64px; }
  .phone { transform: scale(0.92); }
  section { padding: 64px 20px !important; }

  /* Features: lock into a 2×2 box on phones instead of a vertical
     stack. Cards shrink + reduce padding so they actually fit. */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .feature-card {
    padding: 18px 14px;
  }
  .feature-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    margin-bottom: 12px;
  }
  .feature-icon svg { width: 18px; height: 18px; }
  .feature-title { font-size: 15px; margin-bottom: 6px; }
  .feature-body { font-size: 12.5px; line-height: 1.45; }

  /* Reviews: swap the grid for a horizontal scroll-snap carousel
     so reviews appear one at a time and the user swipes through
     them. Edge bleed lets the next review peek to signal "swipe".
     The negative margin escapes the section padding so the
     carousel goes edge-to-edge. */
  .review-grid {
    display: flex;
    grid-template-columns: none;
    gap: 14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 4px 20px;
    margin: 0 -20px;
  }
  .review-grid::-webkit-scrollbar { display: none; }
  .review {
    flex: 0 0 calc(100% - 40px);
    scroll-snap-align: center;
  }
}