/* Sicho corporate site — depth + material
   Hierarchy: canvas → elevated panels → dark accent slab → soft CTAs
   Texture: gradients, soft shadows, frosted nav, hairline borders */

:root {
  --canvas: #f5f5f7;
  --surface: #ffffff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --faint: #86868b;
  --line: rgba(0, 0, 0, 0.06);
  --line-strong: #d2d2d7;
  --blue: #0071e3;
  --blue-soft: #eef4fc;
  --brand: #1769e0;
  --hero-0: #0b1220;
  --hero-1: #1e3a5f;
  --hero-2: #1769e0;
  --shadow-sm:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 8px 24px rgba(11, 18, 32, 0.05),
    0 2px 6px rgba(11, 18, 32, 0.04);
  --shadow-md:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 1px 2px rgba(11, 18, 32, 0.04),
    0 12px 28px rgba(11, 18, 32, 0.06),
    0 28px 56px rgba(11, 18, 32, 0.08);
  --shadow-lg:
    0 1px 0 rgba(255, 255, 255, 0.12) inset,
    0 8px 16px rgba(11, 18, 32, 0.12),
    0 24px 48px rgba(11, 18, 32, 0.18),
    0 40px 80px rgba(11, 18, 32, 0.16);
  --shadow-blue:
    0 1px 0 rgba(255, 255, 255, 0.75) inset,
    0 10px 28px rgba(23, 105, 224, 0.14),
    0 24px 48px rgba(23, 105, 224, 0.1);
  --radius: 22px;
  --radius-sm: 14px;
  --pill: 980px;
  --font: Inter, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
    "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --wide: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  position: relative;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(900px 480px at 8% -8%, rgba(23, 105, 224, 0.09), transparent 58%),
    radial-gradient(780px 420px at 96% 4%, rgba(30, 58, 95, 0.07), transparent 52%),
    radial-gradient(700px 500px at 50% 120%, rgba(23, 105, 224, 0.04), transparent 60%),
    linear-gradient(180deg, #f7f8fb 0%, var(--canvas) 40%, #eef1f6 100%);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
/* Film grain / paper tooth */
.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.vignette {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 70;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(11, 18, 32, 0.08) 100%);
}
a { color: inherit; text-decoration: none; }
.container {
  width: min(100% - 64px, var(--wide));
  margin-inline: auto;
}
@media (max-width: 734px) {
  .container { width: min(100% - 40px, var(--wide)); }
}

/* Frosted nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand-title {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.brand-sub { display: none; }
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  opacity: 0.85;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { opacity: 1; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, #1a7ff0 0%, var(--blue) 100%);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.28) inset,
    0 6px 16px rgba(0, 113, 227, 0.32);
}
.nav-cta:hover { filter: brightness(1.06); }
.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  font-size: 18px;
}
@media (max-width: 734px) {
  .nav-toggle { display: inline-flex; }
  .nav-links, .site-nav > .nav-cta { display: none; }
  .site-nav.is-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px; left: 0; right: 0;
    background: rgba(255,255,255,.96);
    padding: 16px 20px;
    gap: 14px;
    border-bottom: 1px solid var(--line);
  }
  .site-nav.is-open > .nav-cta {
    display: inline-flex;
    position: absolute;
    top: 170px;
    right: 20px;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  padding: 14px 24px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, #ffffff 0%, #f2f4f8 100%);
  color: var(--hero-0);
  font-size: 15px;
  font-weight: 600;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 1) inset,
    0 8px 20px rgba(0, 0, 0, 0.22),
    0 2px 4px rgba(0, 0, 0, 0.12);
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 1) inset,
    0 12px 28px rgba(0, 0, 0, 0.26);
}
.text-link {
  color: var(--blue);
  font-size: 15px;
  font-weight: 500;
}
.text-link.on-dark { color: #fff; }
.text-link:hover { text-decoration: underline; }

/* Hero — layered card with depth */
.hero-wrap {
  padding: 40px 32px 24px;
}
@media (max-width: 734px) {
  .hero-wrap { padding: 24px 16px 16px; }
}
.hero {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 88px 72px 80px;
  color: #fff;
  background:
    radial-gradient(600px 320px at 18% 20%, rgba(88, 140, 220, 0.28), transparent 60%),
    radial-gradient(520px 360px at 88% 10%, rgba(255, 255, 255, 0.14), transparent 55%),
    radial-gradient(480px 300px at 70% 90%, rgba(23, 105, 224, 0.45), transparent 60%),
    linear-gradient(155deg, var(--hero-0) 0%, var(--hero-1) 52%, var(--hero-2) 100%);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
@media (max-width: 734px) {
  .hero { padding: 56px 28px 48px; border-radius: 22px; }
}
.hero-sheen {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.04) 28%,
    transparent 48%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.hero::before {
  width: 460px;
  height: 460px;
  right: -60px;
  top: -100px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.02) 70%);
  filter: blur(4px);
}
.hero::after {
  width: 300px;
  height: 300px;
  right: 60px;
  bottom: -60px;
  background: radial-gradient(circle, rgba(168, 199, 245, 0.35), transparent 70%);
  filter: blur(2px);
}
.hero-inner { position: relative; z-index: 2; max-width: 720px; }
.eyebrow {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #a8c7f5;
}
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(56px, 9vw, 84px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
}
.hero-lead {
  margin: 0 0 14px;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: #e8eef8;
  max-width: 640px;
}
.hero-entity {
  margin: 0;
  font-size: 14px;
  color: #9db4d4;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-top: 28px;
}

/* Capability elevated cards */
.section {
  padding: 32px 0 16px;
}
.section-head {
  margin-bottom: 24px;
}
.section-head .eyebrow {
  color: var(--muted);
  letter-spacing: 1.1px;
}
.section h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; }
}
.card {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.92)),
    var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: transform .22s ease, box-shadow .22s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(255,255,255,0.95), rgba(23,105,224,0.12), rgba(255,255,255,0.35));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.card-shine {
  position: absolute;
  top: -40%;
  left: -20%;
  width: 70%;
  height: 80%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55), transparent 70%);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 18px 40px rgba(11, 18, 32, 0.1),
    0 36px 72px rgba(11, 18, 32, 0.1);
}
.card-badge {
  position: relative;
  display: inline-flex;
  padding: 6px 10px;
  border-radius: var(--pill);
  background: linear-gradient(180deg, #f5f9ff, var(--blue-soft));
  color: var(--brand);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 14px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 4px 10px rgba(23, 105, 224, 0.08);
}
.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.45;
  color: var(--muted);
}

/* Company split: light panel + dark slab */
.company {
  display: grid;
  grid-template-columns: 1.35fr 0.75fr;
  gap: 24px;
  padding: 24px 0 16px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .company { grid-template-columns: 1fr; }
}
.panel {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.panel .eyebrow { color: var(--muted); }
.panel h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.panel .lead {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--muted);
}
.slab {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(280px 180px at 80% 0%, rgba(88, 140, 220, 0.28), transparent 70%),
    linear-gradient(165deg, #0b1220 0%, #152238 55%, #123055 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 0;
}
.slab-glow {
  position: absolute;
  width: 180px;
  height: 180px;
  right: -40px;
  top: -40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 199, 245, 0.35), transparent 70%);
  pointer-events: none;
}
.slab h3 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9db4d4;
}
.slab-row {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13px;
  font-weight: 500;
  color: #f5f7fb;
}
.slab-row:last-child { border-bottom: 0; }

/* CTA glow panel */
.cta-wrap { padding: 16px 0 48px; }
.cta-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  border-radius: var(--radius);
  padding: 48px 40px;
  background:
    radial-gradient(500px 200px at 50% 0%, rgba(23, 105, 224, 0.12), transparent 65%),
    linear-gradient(120deg, #ffffff 0%, #eef4fc 55%, #e8f0fb 100%);
  border: 1px solid rgba(23, 105, 224, 0.22);
  box-shadow: var(--shadow-blue);
}
.cta-card h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 600;
  letter-spacing: -0.025em;
}
.cta-card a {
  font-size: 20px;
  font-weight: 500;
  color: var(--blue);
}

/* Inner pages */
.page-hero {
  padding: 72px 0 28px;
}
.page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 600;
  letter-spacing: -0.03em;
}
.page-hero .lead,
.page-hero .meta {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}
.page-hero .meta { font-size: 14px; color: var(--faint); }
.prose {
  padding: 8px 0 80px;
}
.prose-card {
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-md);
  max-width: 760px;
}
.prose-card p {
  margin: 0 0 1.15em;
  font-size: 16px;
  line-height: 1.55;
  color: var(--muted);
}
.prose-card .intro {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.45;
}
.prose-card a { color: var(--blue); }
.prose-card a:hover { text-decoration: underline; }
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  padding: 8px 0 80px;
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-rows {
  margin: 0;
  display: grid;
  gap: 0;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  padding: 8px 28px;
  box-shadow: var(--shadow-md);
}
.contact-rows > div {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.contact-rows > div:last-child { border-bottom: 0; }
.contact-rows dt {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}
.contact-rows dd {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
}
.contact-rows a { color: var(--blue); }
.muted-line {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}
.note-card {
  background:
    radial-gradient(240px 160px at 100% 0%, rgba(88, 140, 220, 0.3), transparent 70%),
    linear-gradient(165deg, #0b1220 0%, #152238 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  height: fit-content;
}
.note-card h3 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9db4d4;
}
.note-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: #d7e0ef;
}

/* Footer */
.site-footer {
  background: rgba(255, 255, 255, 0.85);
  border-top: 1px solid var(--line-strong);
  padding: 28px 0 32px;
  backdrop-filter: blur(8px);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-brand strong {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
}
.footer-brand p {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}
.footer-email { margin-top: 8px !important; }
.footer-email a { color: var(--blue); }
.footer-cols {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-cols h4 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}
.footer-cols ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.footer-cols a {
  font-size: 12px;
  color: #424245;
}
.footer-cols a:hover { text-decoration: underline; }
.footer-rule {
  height: 1px;
  background: var(--line-strong);
  margin: 16px 0 12px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.copyright, .footer-legal-links {
  margin: 0;
  font-size: 12px;
  color: var(--faint);
}
.footer-legal-links a { color: #424245; }