/* ==========================================================================
   Xenia — static site
   Palette: deep ocean ink + warm coral (the company's own name story —
   Xenia is a coral genus that thrives in strong laminar current)
   ========================================================================== */

:root {
  --ink:        #0B1F2E;   /* deep ocean night — primary background */
  --ink-2:      #0F2A3C;   /* slightly lifted panel background */
  --teal:       #123847;   /* mid depth, section dividers */
  --paper:      #F3EFE6;   /* warm off-white for light sections/text */
  --paper-dim:  #CBD7DC;   /* muted body text on dark */
  --slate:      #7C93A0;   /* secondary/quiet text */
  --coral:      #FF6B4A;   /* living coral accent — the signature color */
  --coral-dim:  #C94E30;   /* pressed/hover state of coral */
  --gold:       #C9A227;   /* rare, financial-grade accent, used sparingly */
  --line:       rgba(243, 239, 230, 0.14);

  --serif: "Fraunces", "Iowan Old Style", "Georgia", serif;
  --sans:  "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono:  "IBM Plex Mono", "SF Mono", Menlo, monospace;

  --max: 1180px;
}

@font-face {
  font-family: "Fraunces";
  src: local("Fraunces");
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 3px;
}

/* -------------------- Wave / laminar-flow motif -------------------- */
/* Signature element: a thin flowing line — the paper's "laminar current"
   — used as a rule between sections instead of a plain hairline. */
.flow-divider {
  width: 100%;
  height: 28px;
  display: block;
  color: var(--coral);
  opacity: 0.55;
}
.flow-divider path { stroke: currentColor; }

/* -------------------------------- Header -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 31, 46, 0.96);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  flex: none;
  order: 1;
}
.brand-logo {
  height: 36px;
  width: auto;
}

nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  order: 2;
  flex-shrink: 0;
}
nav.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}
nav.primary-nav a {
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--paper-dim);
  position: relative;
  padding-bottom: 4px;
}
nav.primary-nav a:hover { color: var(--paper); }
nav.primary-nav a.active { color: var(--paper); }
nav.primary-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--coral);
}
.btn-login {
  border: 1px solid var(--coral);
  color: var(--paper) !important;
  padding: 9px 20px !important;
  border-radius: 2px;
  text-transform: uppercase;
  font-size: 13px !important;
  letter-spacing: 0.06em !important;
  transition: background 0.2s ease, color 0.2s ease;
}
.btn-login:hover {
  background: var(--coral);
  color: var(--ink) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: var(--paper);
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 1150px) {
  nav.primary-nav {
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
    transform: translateY(-110%);
    transition: transform 0.25s ease;
    gap: 24px;
    overflow-y: auto;
  }
  nav.primary-nav.open { transform: translateY(0); }
  nav.primary-nav ul {
    flex-direction: column;
    gap: 20px;
    width: 100%;
  }
  .nav-toggle { display: block; }
}

/* -------------------------------- Hero -------------------------------- */
.hero {
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle at center, rgba(255,107,74,0.16), transparent 70%);
  pointer-events: none;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 22px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.05;
  margin: 0 0 28px;
  max-width: 16ch;
  color: var(--paper);
}
.hero h1 em {
  font-style: italic;
  color: var(--coral);
}
.hero p.lead {
  font-size: 19px;
  color: var(--paper-dim);
  max-width: 46ch;
  margin: 0 0 40px;
}
.cta-row { display: flex; gap: 18px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 15px 28px;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-primary {
  background: var(--coral);
  color: var(--ink);
}
.btn-primary:hover { background: #ff8267; transform: translateY(-1px); }
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--paper);
}
.btn-ghost:hover { border-color: var(--coral); color: var(--coral); }

/* -------------------------------- Sections -------------------------------- */
section { padding: 96px 0; }
.section-tight { padding: 72px 0; }

.section-head {
  max-width: 60ch;
  margin-bottom: 56px;
}
.section-head .eyebrow { margin-bottom: 16px; }
.section-head h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 18px;
  line-height: 1.15;
}
.section-head p {
  color: var(--paper-dim);
  font-size: 17px;
  margin: 0;
}

.panel {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 40px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.service-card {
  background: var(--ink);
  padding: 40px 36px;
}
.service-card .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--coral);
  display: block;
  margin-bottom: 22px;
}
.service-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 14px;
}
.service-card p {
  color: var(--paper-dim);
  font-size: 15px;
  margin: 0;
}

@media (max-width: 860px) {
  .services-grid { grid-template-columns: 1fr; }
}

.strategy-band {
  background: var(--teal);
  border-radius: 4px;
  padding: 64px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.strategy-band h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(26px, 3.6vw, 36px);
  margin: 0 0 20px;
  line-height: 1.2;
}
.strategy-band p { color: var(--paper-dim); margin: 0 0 28px; }
.strategy-list { display: grid; gap: 28px; }
.strategy-list h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  margin: 0 0 8px;
}
.strategy-list p { font-size: 15px; color: var(--paper-dim); margin: 0; }

@media (max-width: 860px) {
  .strategy-band { grid-template-columns: 1fr; padding: 40px 28px; }
}

/* -------------------------------- Contact -------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-grid h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(26px, 3.6vw, 36px);
  margin: 0 0 20px;
}
.contact-grid p { color: var(--paper-dim); margin: 0 0 8px; }
.addr-block { font-style: normal; line-height: 1.8; }
.addr-block strong { color: var(--paper); font-family: var(--serif); font-size: 19px; }
.contact-grid a.mail {
  color: var(--coral);
  border-bottom: 1px solid var(--coral-dim);
}

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* -------------------------------- Footer -------------------------------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 40px;
  color: var(--slate);
  font-size: 13px;
}
footer.site-footer p { margin: 0 0 10px; max-width: 120ch; }
footer.site-footer .foot-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

/* -------------------------------- About / Information page -------------------------------- */
.info-hero {
  padding: 120px 0 56px;
}
.info-hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(34px, 5vw, 52px);
  margin: 0 0 20px;
}
.info-hero p {
  color: var(--paper-dim);
  max-width: 62ch;
  font-size: 17px;
}

.tabs {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 76px;
  background: var(--ink);
  z-index: 20;
}
.tabs ul {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}
.tabs a {
  display: inline-block;
  padding: 18px 18px;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--paper-dim);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.tabs a:hover { color: var(--paper); }
.tabs a.active { color: var(--coral); border-bottom-color: var(--coral); }

.tab-panel { padding: 56px 0 96px; display: none; }
.tab-panel.active { display: block; }
.tab-panel h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  margin: 0 0 24px;
}
.tab-panel h4 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  margin: 32px 0 10px;
}
.tab-panel p, .tab-panel li { color: var(--paper-dim); font-size: 16px; }
.tab-panel strong { color: var(--paper); }
.tab-panel .legal ol { padding-left: 20px; display: grid; gap: 20px; }
.tab-panel .legal li::marker { color: var(--coral); font-family: var(--mono); }

.founder {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 40px;
}
.founder img {
  border-radius: 4px;
  border: 1px solid var(--line);
}
.founder h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 4px;
}
.founder .role {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--coral);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 18px;
  display: block;
}
@media (max-width: 700px) {
  .founder { grid-template-columns: 1fr; }
  .founder img { width: 160px; }
}