:root {
  --bg: #09111f;
  --bg-soft: #101b2f;
  --panel: rgba(16, 24, 40, 0.82);
  --panel-strong: rgba(14, 22, 37, 0.94);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f3f7ff;
  --muted: #a8b6d2;
  --accent: #2663eb;
  --accent-strong: #4c86ff;
  --accent-soft: #a8c2ff;
  --teal: #62d4c8;
  --sand: #8ab1ff;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: 108px;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(38, 99, 235, 0.26), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(98, 212, 200, 0.12), transparent 24%),
    linear-gradient(180deg, #0b1424 0%, #08101d 100%);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 85%);
  pointer-events: none;
}

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

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.topbar,
.footer,
.scene-card,
.info-card,
.faq-item,
.timeline-entry,
.feedback-card,
.device-card {
  backdrop-filter: blur(18px);
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(11, 19, 34, 0.72);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  width: 42px;
  min-width: 42px;
  height: 42px;
  min-height: 42px;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  isolation: isolate;
}

.brand-mark img {
  display: block;
  width: 42px;
  min-width: 42px;
  max-width: 42px;
  height: 42px;
  min-height: 42px;
  max-height: 42px;
  object-fit: contain;
  object-position: center;
  border-radius: 14px;
  flex: none;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-copy small {
  color: var(--muted);
  margin-top: 2px;
}

.nav {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 28px;
  align-items: center;
  padding: 72px 0 54px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.78rem;
  font-family: "Space Grotesk", sans-serif;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 6.3rem);
}

.hero h1 span {
  color: var(--accent);
  display: block;
}

.hero-text,
.scene-card p,
.footer p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 620px;
  font-size: 1.06rem;
  margin: 24px 0 0;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--accent-soft);
  font-size: 0.88rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 700;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #f4f8ff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  box-shadow: 0 18px 40px rgba(38, 99, 235, 0.28);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.03);
}

.hero-actions .button.primary {
  min-width: 176px;
  min-height: 56px;
  padding: 15px 28px;
  font-size: 1.08rem;
  box-shadow: 0 22px 50px rgba(38, 99, 235, 0.34);
}

.hero-downloads {
  align-items: center;
  gap: 12px;
}

.hero-downloads .button.secondary {
  min-width: 156px;
  min-height: 54px;
  padding: 14px 22px;
}

.hero-downloads .button {
  gap: 10px;
  backdrop-filter: blur(10px);
}

.qr-preview {
  display: none;
  margin-top: 18px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.qr-card {
  width: 130px;
  padding: 10px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.96), rgba(12, 19, 33, 0.94));
  box-shadow: var(--shadow);
}

.qr-label,
.qr-tip {
  margin: 0;
}

.qr-label {
  color: var(--text);
  font-size: 0.76rem;
  font-weight: 700;
}

.qr-card img {
  display: block;
  width: 106px;
  height: 106px;
  margin: 8px auto 6px;
  border-radius: 10px;
  background: #ffffff;
}

.qr-tip {
  color: var(--muted);
  font-size: 0.66rem;
  line-height: 1.45;
}

.platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  overflow: visible;
}

.platform-icon svg {
  display: block;
  width: 100%;
  height: 100%;
  fill: currentColor;
  overflow: visible;
}

@media (max-width: 720px) {
  .hero-downloads .button,
  .hero-actions .button.primary {
    width: 100%;
    min-width: 0;
  }
}

@media (hover: hover) and (pointer: fine) {
  .qr-preview {
    position: absolute;
    z-index: 6;
  }

  .qr-preview.visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-visual {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}

.phone-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(20px);
}

.glow-a {
  width: 260px;
  height: 260px;
  background: rgba(38, 99, 235, 0.28);
  top: 60px;
  left: 20px;
}

.glow-b {
  width: 220px;
  height: 220px;
  background: rgba(98, 212, 200, 0.16);
  right: 30px;
  bottom: 40px;
}

.device-card {
  position: relative;
  width: min(100%, 470px);
  padding: 20px;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(16, 24, 40, 0.94), rgba(10, 16, 29, 0.9));
  box-shadow: var(--shadow);
}

.device-top {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}

.device-screen {
  display: grid;
  gap: 14px;
}

.time-panel,
.countdown-panel,
.timeline-panel {
  padding: 22px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel);
}

.time-panel p,
.countdown-panel p,
.timeline-header span {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.time-panel strong,
.countdown-panel strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
}

.time-panel span {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent-soft);
  font-size: 0.85rem;
}

.countdown-panel {
  overflow: hidden;
}

.wave {
  height: 70px;
  margin-top: 14px;
  border-radius: 18px;
  background:
    linear-gradient(90deg, rgba(38, 99, 235, 0) 0%, rgba(38, 99, 235, 0.92) 50%, rgba(38, 99, 235, 0) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
  background-size: 180% 100%, 100% 100%;
  animation: waveShift 3s linear infinite;
}

@keyframes waveShift {
  from {
    background-position: 0% 0%, 0 0;
  }
  to {
    background-position: 180% 0%, 0 0;
  }
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
}

.bars {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  align-items: end;
  gap: 10px;
  min-height: 124px;
}

.bars span {
  height: var(--h);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--sand), var(--accent));
}

.floating-chip {
  position: absolute;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.9rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  z-index: 4;
}

.chip-a {
  top: 88px;
  right: 8px;
}

.chip-b {
  left: 44px;
  bottom: 232px;
}

.chip-c {
  right: 18px;
  bottom: 58px;
}

.showcase,
.scenes,
.guide,
.faq,
.updates,
.feedback {
  padding-top: 92px;
}

.section-heading {
  max-width: 780px;
}

.section-heading h2,
.download-panel h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.narrow {
  max-width: 680px;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  margin-top: 32px;
}

.scene-card,
.info-card,
.faq-item,
.timeline-entry,
.feedback-card,
.shot-card {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
}

.shot-card {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: center;
  min-height: 420px;
  padding: 28px;
}

.shot-card.large {
  background:
    radial-gradient(circle at 90% 20%, rgba(38, 99, 235, 0.18), transparent 30%),
    linear-gradient(180deg, rgba(17, 27, 45, 0.96), rgba(10, 16, 29, 0.95));
}

.shot-copy h3 {
  margin: 18px 0 12px;
  font-size: 1.55rem;
  line-height: 1.25;
}

.shot-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.shot-points {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.shot-points li {
  color: var(--text);
  font-size: 0.96rem;
}

.shot-points li::before {
  content: "•";
  color: var(--accent);
  margin-right: 8px;
}

.phone-frame {
  justify-self: end;
  width: min(100%, 250px);
  padding: 10px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.phone-frame img {
  border-radius: 26px;
}

.phone-frame.compact {
  width: min(100%, 220px);
}

.scene-card::before {
  content: "";
  position: absolute;
  inset: auto -10% -45% auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  opacity: 0.18;
}

.card-index,
.scene-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.scene-card h3 {
  margin: 18px 0 12px;
  font-size: 1.45rem;
  line-height: 1.28;
}

.scene-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
  gap: 18px;
  margin-top: 32px;
}

.scene-card {
  padding: 28px;
  min-height: 280px;
}

.guide-grid,
.feedback-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.info-card,
.feedback-card {
  padding: 28px;
  min-height: 220px;
}

.inline-action {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  cursor: pointer;
  font: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 22px;
  min-width: 168px;
  min-height: 50px;
  padding: 12px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #f4f8ff;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  box-shadow:
    0 18px 40px rgba(38, 99, 235, 0.26),
    0 0 0 1px rgba(255, 255, 255, 0.08) inset;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.inline-action:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
  box-shadow:
    0 24px 50px rgba(38, 99, 235, 0.34),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.inline-action-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  box-shadow:
    0 14px 30px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}

.inline-action-secondary:hover {
  box-shadow:
    0 18px 36px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(255, 255, 255, 0.12) inset;
}

.faq-list,
.timeline-list {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.faq-item {
  padding: 0;
}

.faq-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  padding: 22px 24px;
  font-size: 1.08rem;
  font-weight: 700;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.faq-link:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  font-size: 1.08rem;
  font-weight: 700;
}

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

.faq-item p {
  margin: 0;
  padding: 0 24px 22px;
  color: var(--muted);
  line-height: 1.8;
}

.timeline-entry {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: start;
  padding: 24px;
}

.timeline-link {
  text-decoration: none;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.timeline-link:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
}

.timeline-entry h3,
.feedback-card h3,
.info-card h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.timeline-entry p,
.feedback-card p,
.info-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.timeline-date {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(38, 99, 235, 0.14);
  color: var(--accent-soft);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.92rem;
}

.feedback-card.highlight,
.info-card:first-child {
  background:
    radial-gradient(circle at 90% 15%, rgba(38, 99, 235, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(17, 27, 45, 0.96), rgba(10, 16, 29, 0.95));
}

.main-scene {
  background:
    radial-gradient(circle at 90% 20%, rgba(38, 99, 235, 0.22), transparent 30%),
    linear-gradient(180deg, rgba(17, 27, 45, 0.96), rgba(10, 16, 29, 0.95));
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 80px;
  padding: 22px 24px 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-main {
  max-width: 620px;
}

.record {
  margin-top: 10px;
}

.footer-links {
  display: grid;
  gap: 10px;
  text-align: right;
}

.footer strong,
.section-heading h2,
.hero h1,
.scene-card h3 {
  text-wrap: balance;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .showcase-grid,
  .scene-layout,
  .guide-grid,
  .feedback-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-visual {
    min-height: auto;
    padding-top: 20px;
  }

  .shot-card {
    grid-template-columns: 1fr;
  }

  .phone-frame {
    justify-self: start;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
    padding-top: 12px;
  }

  .topbar {
    top: 10px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .nav {
    gap: 14px;
    flex-wrap: wrap;
  }

  section[id] {
    scroll-margin-top: 128px;
  }

  .hero {
    padding-top: 42px;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .device-card {
    padding: 16px;
    border-radius: 24px;
  }

  .time-panel,
  .countdown-panel,
  .timeline-panel,
  .scene-card,
  .info-card,
  .faq-item,
  .timeline-entry,
  .feedback-card,
  .download-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .timeline-entry {
    grid-template-columns: 1fr;
  }

  .faq-item summary,
  .faq-item p {
    padding-left: 20px;
    padding-right: 20px;
  }

  .footer-links {
    text-align: left;
  }

  .floating-chip {
    position: static;
    margin-top: 10px;
  }

  .hero-visual {
    display: block;
  }

  .phone-frame,
  .phone-frame.compact {
    width: min(100%, 240px);
  }
}