/* ==========================================================================
   XiaoGeng — Homepage stylesheet
   Theme: deep warm near-black with terracotta accent
   ========================================================================== */

:root {
  --bg: #14100d;
  --bg-2: #1a1411;
  --surface: #221a16;
  --surface-2: #2b211b;
  --line: #352a23;
  --line-soft: #2b211b;

  --ink: #f4eee7;
  --ink-soft: #bfb1a4;
  --ink-faint: #9a8b7e;

  --accent: #e2734f;
  --accent-bright: #f28e6b;
  --accent-deep: #c25b3c;
  --accent-ink: #1c120d;

  --radius: 16px;
  --radius-lg: 24px;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-display: "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --max: 1180px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-size: 16px;
  line-height: 1.65;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-bright);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  color: var(--ink);
  letter-spacing: -0.01em;
}

p {
  color: var(--ink-soft);
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --------------------------------------------------------------------------
   Header (fixed, class-scoped)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: #14100d;
  border-bottom: 1px solid var(--line-soft);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
  background-color: #1a1411;
  border-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background-color: var(--accent);
  color: var(--accent-ink);
  font-size: 1.05rem;
  font-weight: 800;
}

.brand span {
  color: var(--accent);
}

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  padding: 0 10px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle:hover {
  border-color: var(--accent);
}

/* Fullscreen overlay navigation */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: #14100d;
  background-image: radial-gradient(
      circle at 82% 18%,
      #2a1c16 0%,
      #14100d 55%
    ),
    radial-gradient(circle at 18% 84%, #221812 0%, #14100d 50%);
  display: flex;
  flex-direction: column;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.45s ease;
}

.nav-overlay.open {
  transform: translateY(0);
  visibility: visible;
}

.nav-overlay-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
}

.nav-close {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
}

.nav-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-overlay-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-links a {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.02em;
  transition: color 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent);
  transform: translateX(10px);
}

.nav-links a .idx {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-right: 16px;
  vertical-align: middle;
  letter-spacing: 0.05em;
}

.nav-overlay-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.nav-overlay-foot a {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.nav-overlay-foot a:hover {
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   Hero — asymmetric two column
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 160px 0 88px;
  background-color: var(--bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 56px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background-color: var(--surface);
  color: var(--accent-bright);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.4rem);
  letter-spacing: -0.03em;
  margin-bottom: 26px;
}

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

.hero-lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  background-color: var(--accent-bright);
  color: var(--accent-ink);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  transform: translateY(-2px);
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust span::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

/* Angled visual panel */
.hero-panel {
  position: relative;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 44px 40px 52px;
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 52px),
    calc(100% - 52px) 100%,
    0 100%
  );
}

.hero-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background-color: var(--accent);
  border-radius: 0 0 0 120px;
}

.hero-panel .panel-quote {
  position: relative;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 30px;
  padding-top: 8px;
  letter-spacing: -0.01em;
}

.hero-panel .panel-quote em {
  color: var(--accent-bright);
  font-style: normal;
}

.hero-panel .panel-rule {
  height: 1px;
  background-color: var(--line);
  margin: 24px 0;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.hero-stat .num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: -0.02em;
}

.hero-stat .lbl {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-top: 2px;
}

.hero-panel .panel-contact {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.95rem;
}

.hero-panel .panel-contact a {
  color: var(--ink);
}

.hero-panel .panel-contact a:hover {
  color: var(--accent-bright);
}

/* --------------------------------------------------------------------------
   Full-width statement row
   -------------------------------------------------------------------------- */
.statement-row {
  background-color: var(--accent);
  color: var(--accent-ink);
  padding: 84px 0;
}

.statement-row .statement {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--accent-ink);
  max-width: 1060px;
}

.statement-row .statement-sub {
  margin-top: 24px;
  font-size: 1.1rem;
  color: var(--accent-ink);
  max-width: 720px;
}

.statement-row .statement-sub a {
  color: var(--accent-ink);
  text-decoration: underline;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Bento grid
   -------------------------------------------------------------------------- */
.bento-section {
  padding: 104px 0;
  background-color: var(--bg);
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-head .kicker {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-head p {
  font-size: 1.08rem;
}

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(150px, auto);
  gap: 18px;
}

.bento-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease,
    background-color 0.25s ease;
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background-color: var(--surface-2);
}

.bento-card .card-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: #2c211b;
  color: var(--accent-bright);
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.bento-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.bento-card p {
  font-size: 0.98rem;
}

.bento-card .card-list {
  list-style: none;
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bento-card .card-list li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.bento-card .card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background-color: var(--accent);
}

.bento-card .card-tag {
  margin-top: auto;
  padding-top: 18px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

/* Bento spans */
.span-2 {
  grid-column: span 2;
}
.span-3 {
  grid-column: span 3;
}
.span-4 {
  grid-column: span 4;
}
.span-6 {
  grid-column: span 6;
}
.row-2 {
  grid-row: span 2;
}

/* Featured (who we are) card */
.bento-card.featured {
  background-color: var(--accent);
  border-color: var(--accent);
}

.bento-card.featured h3 {
  color: var(--accent-ink);
}

.bento-card.featured p {
  color: var(--accent-ink);
}

.bento-card.featured .card-icon {
  background-color: var(--accent-ink);
  color: var(--accent);
}

.bento-card.featured .card-tag {
  color: var(--accent-ink);
}

.bento-card.featured:hover {
  border-color: var(--accent-bright);
  background-color: var(--accent-bright);
}

/* --------------------------------------------------------------------------
   Engage (contact) section
   -------------------------------------------------------------------------- */
.engage-section {
  padding: 104px 0;
  background-color: var(--bg-2);
  border-top: 1px solid var(--line);
}

.engage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.engage-info h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
  margin-bottom: 20px;
}

.engage-info > p {
  font-size: 1.08rem;
  max-width: 520px;
  margin-bottom: 30px;
}

.engage-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.engage-details li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.engage-details .lbl {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 3px;
}

.engage-details .val {
  color: var(--ink);
  font-size: 1.02rem;
}

.engage-details a.val:hover {
  color: var(--accent-bright);
}

.contact-form {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px;
}

.contact-form .field {
  margin-bottom: 18px;
}

.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
}

.form-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--ink-faint);
  min-height: 1.4em;
}

.form-note.success {
  color: var(--accent-bright);
}

/* --------------------------------------------------------------------------
   Footer — compact single row
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #100d0b;
  border-top: 1px solid var(--line-soft);
  padding: 34px 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.footer-brand span {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 26px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent-bright);
}

.footer-legal {
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Scroll reveal
   -------------------------------------------------------------------------- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .hero {
    padding: 140px 0 72px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-panel {
    max-width: 560px;
  }

  .bento {
    grid-template-columns: repeat(2, 1fr);
  }

  .span-2,
  .span-3,
  .span-4 {
    grid-column: span 2;
  }

  .span-6 {
    grid-column: span 2;
  }

  .row-2 {
    grid-row: auto;
  }

  .engage-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
}

@media (max-width: 600px) {
  .bento {
    grid-template-columns: 1fr;
  }

  .span-2,
  .span-3,
  .span-4,
  .span-6 {
    grid-column: span 1;
  }

  .row-2 {
    grid-row: auto;
  }

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

  .hero h1 {
    font-size: 2.4rem;
  }
}