:root {
  color-scheme: light dark;
  --bg: #f7f8fb;
  --ink: #151518;
  --muted: #6d7280;
  --muted-2: #8a8f9c;
  --panel: rgba(255, 255, 255, 0.62);
  --panel-strong: rgba(255, 255, 255, 0.86);
  --glass-line: rgba(255, 255, 255, 0.72);
  --line: rgba(12, 18, 28, 0.09);
  --blue: #007aff;
  --cyan: #32d2ff;
  --mint: #30d158;
  --purple: #bf5af2;
  --pink: #ff2d55;
  --orange: #ff9f0a;
  --blue-soft: rgba(0, 122, 255, 0.10);
  --shadow: 0 20px 56px rgba(25, 35, 60, 0.10);
  --soft-shadow: 0 10px 30px rgba(25, 35, 60, 0.075);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1120px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #06070b;
    --ink: #f5f5f7;
    --muted: #a5abb8;
    --muted-2: #858b98;
    --panel: rgba(29, 31, 38, 0.58);
    --panel-strong: rgba(38, 40, 48, 0.82);
    --glass-line: rgba(255, 255, 255, 0.18);
    --line: rgba(255, 255, 255, 0.11);
    --blue: #0a84ff;
    --cyan: #64d2ff;
    --mint: #63e6be;
    --purple: #bf5af2;
    --pink: #ff375f;
    --orange: #ffd60a;
    --blue-soft: rgba(10, 132, 255, 0.15);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
    --soft-shadow: 0 14px 38px rgba(0, 0, 0, 0.28);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% -8%, rgba(0, 122, 255, 0.18), transparent 26rem),
    radial-gradient(circle at 86% 4%, rgba(191, 90, 242, 0.14), transparent 24rem),
    radial-gradient(circle at 72% 92%, rgba(48, 209, 88, 0.10), transparent 26rem),
    linear-gradient(180deg, rgba(255,255,255,.52), rgba(255,255,255,0) 24rem),
    var(--bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.24), transparent 60%);
}

a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.65; font-size: 0.98rem; }
h1, h2, h3 { margin: 0; letter-spacing: -0.034em; line-height: 1.08; }
h1 { font-size: clamp(2.35rem, 5.1vw, 4.15rem); max-width: 780px; }
h2 { font-size: clamp(1.65rem, 3.1vw, 2.55rem); }
h3 { font-size: clamp(1.22rem, 1.9vw, 1.62rem); }

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

.topbar,
.site-header {
  position: sticky;
  top: 14px;
  z-index: 20;
  width: min(var(--container), calc(100% - 2rem));
  margin: 14px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.68rem 0.78rem;
  border: 1px solid var(--glass-line);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.38)),
    var(--panel);
  backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
}

.brand,
.nav,
.actions,
.text-links,
.card-links,
.card-actions,
.footer div,
.site-footer div { display: flex; align-items: center; }

.brand { gap: 0.64rem; font-weight: 720; padding-left: 0.22rem; }
.brand-mark {
  width: 2.08rem;
  height: 2.08rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  box-shadow: 0 10px 24px rgba(0,122,255,.22);
}

.nav { gap: 0.16rem; flex-wrap: wrap; }
.nav a,
.footer a,
.site-footer a {
  color: var(--muted);
  padding: 0.58rem 0.76rem;
  border-radius: 999px;
  font-size: 0.9rem;
  transition: background .22s ease, color .22s ease, transform .22s ease;
}
.nav a:hover,
.footer a:hover,
.site-footer a:hover { color: var(--ink); background: var(--blue-soft); transform: translateY(-1px); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  gap: 1rem;
  align-items: stretch;
  padding: 5rem 0 3.2rem;
}

.hero-content,
.hero-copy,
.hero-profile,
.profile-card,
.flagship-card,
.feature-card,
.app-link-card,
.store-card,
.principle-list article,
.principles div,
.contact-panel,
.contact-card,
.detail-panel,
.info-card,
.about-card {
  position: relative;
  border: 1px solid var(--glass-line);
  background:
    linear-gradient(145deg, rgba(255,255,255,.70), rgba(255,255,255,.34)),
    var(--panel);
  backdrop-filter: blur(26px) saturate(180%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-content::before,
.hero-copy::before,
.hero-profile::before,
.flagship-card::after,
.app-link-card::after,
.contact-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,.80), transparent 34%, rgba(255,255,255,.16));
  opacity: .52;
}

.hero-content,
.hero-copy {
  min-height: 500px;
  border-radius: var(--radius-xl);
  padding: clamp(1.7rem, 4vw, 3.15rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: enterUp .72s ease both;
}

.eyebrow,
.card-kicker,
.app-link-card small,
.store-card span,
.tag,
.small-label {
  display: block;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.72rem;
  line-height: 1.3;
  font-weight: 740;
  margin: 0 0 0.82rem;
}

.lead,
.hero-text { max-width: 650px; font-size: clamp(1.02rem, 1.45vw, 1.15rem); margin: 1.05rem 0 0; }
.actions,
.hero-actions,
.contact-actions { gap: 0.72rem; flex-wrap: wrap; margin-top: 1.6rem; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.72rem;
  padding: 0.72rem 1.08rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.93rem;
  font-weight: 700;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}
.button.primary { background: linear-gradient(135deg, var(--blue), var(--purple)); color: white; box-shadow: 0 12px 28px rgba(0,122,255,.22); }
.button.secondary { background: var(--panel-strong); color: var(--ink); }
.button:hover { transform: translateY(-2px); box-shadow: var(--soft-shadow); }

.hero-profile,
.profile-card {
  border-radius: var(--radius-xl);
  padding: 1rem;
  display: grid;
  align-content: end;
  gap: 0.95rem;
  animation: enterUp .82s .08s ease both;
}
.hero-profile img,
.profile-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--soft-shadow);
}
.profile-copy,
.profile-card div { padding: 0.2rem 0.35rem 0.35rem; }
.hero-profile p,
.profile-card p { margin: 0.72rem 0 0; }

.section-block,
.section-shell { padding: 4.45rem 0; }
.section-heading,
.section-title {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
  max-width: none;
}
.section-heading p,
.section-title p { margin: 0; max-width: 640px; }
.section-heading.narrow,
.section-heading.compact { grid-template-columns: 1fr; max-width: 720px; }

.flagship-grid,
.feature-grid,
.project-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.flagship-card,
.feature-card,
.project-card {
  min-height: 300px;
  border-radius: var(--radius-xl);
  padding: clamp(1.25rem, 2.5vw, 1.85rem);
  display: grid;
  align-content: end;
  gap: 1.1rem;
  transition: transform .26s ease, box-shadow .26s ease, border-color .26s ease;
  animation: enterUp .72s ease both;
}
.flagship-card:hover,
.feature-card:hover,
.project-card:hover { transform: translateY(-5px); box-shadow: 0 28px 70px rgba(0,0,0,.12); border-color: color-mix(in srgb, var(--blue), transparent 52%); }
.flagship-card::before,
.feature-card::before,
.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .72;
  pointer-events: none;
}
.solira-card::before,
.project-card:nth-child(1)::before { background: radial-gradient(circle at 84% 10%, rgba(48,209,88,.20), transparent 12rem), radial-gradient(circle at 18% 18%, rgba(0,122,255,.18), transparent 18rem); }
.code-card::before,
.project-card:nth-child(2)::before { background: radial-gradient(circle at 84% 10%, rgba(191,90,242,.18), transparent 13rem), radial-gradient(circle at 10% 20%, rgba(100,210,255,.16), transparent 18rem); }
.flagship-card > *,
.feature-card > *,
.project-card > * { position: relative; }
.flagship-card p,
.feature-card p,
.project-card p { max-width: 560px; margin: 0.82rem 0 1rem; }

.icon-app {
  width: 3.8rem;
  height: 3.8rem;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: white;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.5rem;
  box-shadow: var(--soft-shadow);
  animation: floatIcon 5.2s ease-in-out infinite;
}
.solira-icon { background: linear-gradient(135deg, var(--mint), var(--blue)); }
.code-icon { background: linear-gradient(135deg, #1d1d1f, var(--purple)); }
.guide-icon { background: linear-gradient(135deg, var(--orange), var(--pink)); }
.audio-icon { background: linear-gradient(135deg, var(--purple), #5e5ce6); }
.store-icon { background: linear-gradient(135deg, var(--blue), var(--cyan)); }

.text-links,
.card-links,
.card-actions { gap: 0.75rem; flex-wrap: wrap; margin-top: auto; }
.text-links a,
.card-links a,
.card-actions a { color: var(--blue); font-size: 0.94rem; font-weight: 700; }
.text-links a + a,
.card-links a + a,
.card-actions a + a { color: var(--muted); }

.soft-section { padding-top: 3.6rem; }
.app-links-grid,
.app-row,
.app-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0.9rem; }
.app-link-card,
.store-card,
.app-card {
  min-height: 176px;
  border-radius: var(--radius-lg);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
  animation: enterUp .72s ease both;
}
.app-link-card:hover,
.store-card:hover,
.app-card:hover { transform: translateY(-4px) scale(1.01); border-color: color-mix(in srgb, var(--blue), transparent 46%); box-shadow: 0 22px 56px rgba(0,0,0,.12); }
.app-link-card strong,
.store-card strong { display: block; font-size: 1.02rem; letter-spacing: -0.02em; margin-top: 0.85rem; }
.app-link-card small,
.store-card small { color: var(--muted-2); font-size: 0.78rem; margin: 0.2rem 0 0; text-transform: none; letter-spacing: 0; font-weight: 600; }

.approach-grid,
.profile-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1rem;
  align-items: start;
  padding: 4.45rem 0;
}
.principle-list,
.principles { display: grid; gap: 0.85rem; }
.principle-list article,
.principles div { border-radius: var(--radius-lg); padding: 1.05rem; box-shadow: none; }
.principle-list strong,
.principles strong { display: block; margin-bottom: 0.32rem; font-size: 0.98rem; }
.principle-list p,
.principles span { color: var(--muted); line-height: 1.6; font-size: 0.95rem; margin: 0; }

.contact-panel,
.contact-card {
  margin-top: 1rem;
  margin-bottom: 3.4rem;
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 3vw, 2.35rem);
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
}
.contact-panel p,
.contact-card p { max-width: 600px; }

.footer,
.site-footer {
  padding: 1.7rem 0 2.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
}
.footer div,
.site-footer div { gap: 0.14rem; flex-wrap: wrap; }

.page-hero { padding-top: 4rem; padding-bottom: 2.4rem; }
.page-hero h1 { max-width: 760px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.detail-panel,
.info-card { padding: 1.35rem; border-radius: var(--radius-lg); }
.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.detail-list { display: grid; gap: 0.65rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.detail-list li { padding: 0.78rem 0.9rem; border-radius: 14px; background: var(--blue-soft); color: var(--muted); font-size: 0.95rem; }

@keyframes enterUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@media (max-width: 1040px) {
  .app-links-grid,
  .app-row,
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
  .topbar,
  .site-header,
  .hero,
  .section-heading,
  .section-title,
  .flagship-grid,
  .feature-grid,
  .project-grid,
  .approach-grid,
  .profile-section,
  .contact-panel,
  .contact-card,
  .footer,
  .site-footer,
  .detail-grid,
  .info-grid { display: grid; grid-template-columns: 1fr; }
  .topbar,
  .site-header { border-radius: 24px; }
  .nav { justify-content: center; }
  .hero-content,
  .hero-copy { min-height: auto; }
  .flagship-card,
  .feature-card,
  .project-card { min-height: 250px; }
}

@media (max-width: 640px) {
  h1 { font-size: clamp(2.2rem, 10vw, 3.25rem); }
  h2 { font-size: clamp(1.55rem, 7vw, 2.1rem); }
  .hero { padding-top: 3.25rem; }
  .section-block,
  .section-shell,
  .approach-grid,
  .profile-section { padding: 3.3rem 0; }
  .app-links-grid,
  .app-row,
  .app-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}