:root {
  --ink: #0c1c24;
  --ink-soft: #3a5563;
  --ice: #f3f8fa;
  --mist: #d7e8ef;
  --teal: #0d8f9e;
  --teal-deep: #0a6f7b;
  --line: rgba(12, 28, 36, 0.1);
  --surface: rgba(255, 255, 255, 0.72);
  --radius: 18px;
  --font-display: "Syne", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", sans-serif;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  background: var(--ice);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 520px at 12% -10%, rgba(13, 143, 158, 0.22), transparent 60%),
    radial-gradient(700px 480px at 88% 8%, rgba(56, 120, 168, 0.16), transparent 55%),
    radial-gradient(800px 600px at 50% 100%, rgba(180, 210, 220, 0.55), transparent 50%),
    linear-gradient(180deg, #eaf4f7 0%, #f7fbfc 42%, #eef5f8 100%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(13, 143, 158, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 143, 158, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
  animation: grid-drift 28s linear infinite;
}

@keyframes grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 48px 48px, 48px 48px; }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  backdrop-filter: blur(14px);
  background: rgba(243, 248, 250, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:not(.nav-cta):hover {
  color: var(--teal-deep);
}

.nav-cta {
  padding: 0.45rem 1rem;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  transition: transform 0.2s ease, background 0.2s ease;
}

.nav-cta:hover {
  background: var(--teal-deep);
  transform: translateY(-1px);
}

.hero {
  min-height: min(100vh, 920px);
  display: grid;
  align-content: center;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  padding: clamp(2rem, 6vw, 4rem) clamp(1rem, 4vw, 2.5rem) 3rem;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-copy {
  max-width: 640px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
}

.brand-lockup img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(13, 143, 158, 0.25));
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.8rem, 7vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--ink) 30%, var(--teal) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.2vw, 2.05rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
}

.hero-lead {
  margin: 0 0 1.5rem;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.4rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.98rem;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  color: #fff;
  box-shadow: 0 10px 28px rgba(13, 143, 158, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(13, 143, 158, 0.36);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: rgba(13, 143, 158, 0.35);
  color: var(--teal-deep);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 1.75rem;
  font-size: 1.05rem;
}

.hero-visual {
  width: 100%;
  margin-top: 0.25rem;
}

.hero-shot {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid rgba(12, 28, 36, 0.08);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 24px 60px rgba(12, 40, 50, 0.16);
  animation: hero-rise 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.section-head {
  max-width: var(--max);
  margin: 0 auto 2.5rem;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.35rem);
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 32rem;
}

.features {
  padding: 4.5rem 0 2rem;
}

.feature-row {
  max-width: var(--max);
  margin: 0 auto 3.5rem;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

@media (min-width: 880px) {
  .feature-row {
    grid-template-columns: 1fr 1.15fr;
    gap: 2.5rem;
  }

  .feature-row--flip .feature-text {
    order: 2;
  }

  .feature-row--flip .feature-media {
    order: 1;
  }
}

.feature-text h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.015em;
}

.feature-text p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.feature-media {
  margin: 0;
}

.feature-media img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(12, 40, 50, 0.1);
}

.pillars {
  padding: 2rem 0 4rem;
}

.pillar-list {
  list-style: none;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  max-width: var(--max);
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 760px) {
  .pillar-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.pillar-list li {
  padding: 0;
  border-top: 2px solid var(--teal);
  padding-top: 1rem;
}

.pillar-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.45rem;
}

.pillar-list span {
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.shots {
  padding: 2rem 0 4.5rem;
}

.shot-rail {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 900px) {
  .shot-rail {
    grid-template-columns: repeat(3, 1fr);
  }
}

.shot-item {
  margin: 0;
}

.shot-item img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  transition: transform 0.35s ease;
}

.shot-item:hover img {
  transform: translateY(-4px);
}

.shot-item figcaption {
  margin-top: 0.65rem;
  font-weight: 500;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.download {
  padding: 1rem 0 5rem;
}

.download-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.75rem clamp(1.25rem, 4vw, 2.5rem);
  border-radius: 22px;
  border: 1px solid rgba(13, 143, 158, 0.2);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.85), rgba(223, 240, 244, 0.9)),
    radial-gradient(500px 240px at 90% 0%, rgba(13, 143, 158, 0.18), transparent 60%);
  text-align: center;
}

.download-inner h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

.download-inner > p {
  margin: 0 auto 1.4rem;
  max-width: 28rem;
  color: var(--ink-soft);
}

.download-note {
  margin: 1rem 0 0 !important;
  font-size: 0.85rem !important;
  color: #6a7f8a !important;
}

.download-note code {
  font-size: 0.82em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(12, 28, 36, 0.06);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .bg-grid,
  .hero-shot,
  .reveal,
  .shot-item img,
  .btn-primary,
  .btn-ghost,
  .nav-cta {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}