:root {
  --bg: #eef5fb;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-strong: #ffffff;
  --text: #10223f;
  --muted: #5f718a;
  --line: rgba(16, 34, 63, 0.1);
  --blue: #38b6f2;
  --mint: #64dfbe;
  --navy: #13263f;
  --orange: #ff914d;
  --shadow: 0 24px 60px rgba(10, 31, 60, 0.12);
  --shadow-soft: 0 12px 28px rgba(10, 31, 60, 0.08);
  --radius-lg: 32px;
  --radius-md: 24px;
  --radius-sm: 18px;
  --shell: 1160px;
  --font-head: "Syne", sans-serif;
  --font-body: "Figtree", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 182, 242, 0.12), transparent 30%),
    radial-gradient(circle at bottom right, rgba(100, 223, 190, 0.14), transparent 32%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

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

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

button {
  font: inherit;
}

.site-shell {
  width: min(calc(100% - 2rem), var(--shell));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-top: 1rem;
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  object-fit: contain;
}

.brand strong,
h1,
h2,
h3 {
  font-family: var(--font-head);
  letter-spacing: -0.04em;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 700;
}

.nav-links a:hover {
  background: rgba(16, 34, 63, 0.06);
  color: var(--text);
}

.hero,
.demo-section,
.modules-section,
.gallery-section {
  padding: 4.5rem 0;
}

.hero-grid,
.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.8fr);
  gap: 2rem;
  align-items: center;
}

.hero-copy,
.hero-panel,
.demo-copy,
.phone-stage,
.module-card,
.gallery-item {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel,
.demo-copy,
.phone-stage {
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border-radius: var(--radius-lg);
}

.eyebrow,
.section-kicker,
.demo-badge,
.demo-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker,
.demo-status {
  background: rgba(56, 182, 242, 0.12);
  color: #177fb1;
}

.demo-badge {
  background: rgba(255, 145, 77, 0.15);
  color: #ba5f1a;
}

h1 {
  margin: 1rem 0 0;
  font-size: clamp(2.9rem, 6vw, 5.1rem);
  line-height: 0.97;
}

h2 {
  margin: 0.9rem 0 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.02;
}

h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.06;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.hero-lead {
  margin-top: 1.25rem;
  max-width: 60ch;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  font-weight: 800;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--mint));
  box-shadow: 0 14px 28px rgba(56, 182, 242, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.hero-notes,
.detail-points {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.hero-notes li,
.detail-points li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--muted);
}

.hero-notes li::before,
.detail-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--mint));
}

.mini-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

.mini-list span {
  padding: 0.65rem 0.8rem;
  border-radius: 16px;
  background: rgba(16, 34, 63, 0.06);
  font-weight: 700;
  color: var(--text);
}

.demo-copy > p {
  margin-top: 1rem;
  max-width: 54ch;
}

.module-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.module-tab {
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
}

.module-tab.is-active {
  background: linear-gradient(135deg, rgba(56, 182, 242, 0.16), rgba(100, 223, 190, 0.18));
  border-color: rgba(56, 182, 242, 0.24);
}

.demo-detail {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.8rem;
}

.phone-stage {
  display: grid;
  gap: 1rem;
  justify-items: center;
}

.phone-frame {
  width: min(100%, 300px);
  padding: 0.9rem;
  border-radius: 40px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 248, 255, 0.92));
  box-shadow: inset 0 0 0 1px rgba(16, 34, 63, 0.08), var(--shadow);
}

.phone-screen-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 30px;
  background: transparent;
  cursor: zoom-in;
}

.phone-screen {
  width: 100%;
  border-radius: 30px;
  aspect-ratio: 1170 / 2532;
  object-fit: cover;
  box-shadow: 0 16px 34px rgba(10, 31, 60, 0.14);
}

.phone-hint {
  font-weight: 700;
  color: var(--text);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 1.8rem;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.module-card {
  padding: 1.35rem;
  border-radius: var(--radius-md);
}

.module-card strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-head);
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
}

.gallery-item {
  padding: 0.8rem;
  border: 0;
  border-radius: 28px;
  cursor: zoom-in;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 1170 / 2532;
  object-fit: cover;
  border-radius: 22px;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.footer-row {
  padding-top: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
}

.footer-row a {
  font-weight: 800;
}

.lightbox-open {
  overflow: hidden;
}

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1200;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 16, 30, 0.84);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.lightbox-panel {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), 960px);
  margin: min(5vh, 2.5rem) auto;
  padding: 1rem;
  display: grid;
  gap: 0.85rem;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 24px 60px rgba(5, 20, 40, 0.28);
}

.lightbox-close {
  justify-self: end;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 999px;
  background: rgba(16, 34, 63, 0.08);
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.lightbox-image {
  width: 100%;
  max-height: 74vh;
  object-fit: contain;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(236, 245, 255, 0.82), rgba(243, 251, 248, 0.68));
}

.lightbox-caption {
  color: var(--muted);
  font-weight: 600;
}

@media (max-width: 1080px) {
  .hero-grid,
  .demo-grid,
  .module-grid,
  .gallery-grid,
  .footer-row {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .module-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .hero,
  .demo-section,
  .modules-section,
  .gallery-section {
    padding: 3.5rem 0;
  }

  .nav-row {
    border-radius: 24px;
  }

  h1 {
    font-size: clamp(2.3rem, 11vw, 3.4rem);
  }

  h2 {
    font-size: clamp(1.8rem, 9vw, 2.5rem);
  }

  .hero-copy,
  .hero-panel,
  .demo-copy,
  .phone-stage {
    padding: 1.35rem;
  }

  .btn,
  .module-tab {
    width: 100%;
  }

  .module-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}