/* ============================================================
   KettleJix — core stylesheet
   Design tokens first; everything else derives from them.
   ============================================================ */

:root {
  /* palette */
  --bg:            #05070d;
  --bg-elev:       #0a0e18;
  --bg-elev-2:     #0f1524;
  --line:          rgba(120, 160, 255, 0.14);
  --line-strong:   rgba(120, 160, 255, 0.30);

  --text:          #e8ecf6;
  --text-dim:      #97a2bd;
  --text-faint:    #5d6884;

  --accent:        #35e6d0;   /* jix cyan */
  --accent-2:      #6b8cff;   /* kettle blue */
  --glow:          0 0 40px rgba(53, 230, 208, 0.25);

  /* type */
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Consolas, monospace;

  /* metrics */
  --nav-h: 72px;
  --wrap: 1200px;
  --r-md: 14px;
  --r-lg: 24px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* light theme — respects OS preference, overridable by [data-theme] */
:root[data-theme="light"] {
  --bg: #f5f7fc;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef2fa;
  --line: rgba(20, 40, 90, 0.12);
  --line-strong: rgba(20, 40, 90, 0.26);
  --text: #0b1120;
  --text-dim: #47536e;
  --text-faint: #7c87a0;
  --accent: #00a894;
  --accent-2: #3a63e0;
  --glow: 0 0 40px rgba(0, 168, 148, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ambient field behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(700px 500px at 12% -5%,  rgba(107, 140, 255, 0.18), transparent 60%),
    radial-gradient(600px 500px at 88% 8%,   rgba(53, 230, 208, 0.14),  transparent 60%),
    radial-gradient(800px 600px at 50% 105%, rgba(176, 107, 255, 0.12), transparent 65%);
  pointer-events: none;
}

/* faint engineering grid */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 20%, transparent 78%);
  opacity: 0.55;
  pointer-events: none;
}

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

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

/* ---------- typography ---------- */

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; color: var(--text-dim); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

.grad {
  background: linear-gradient(100deg, var(--text) 10%, var(--accent) 50%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { font-size: 1.13rem; max-width: 60ch; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: var(--bg-elev-2);
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
              border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); }

.btn-primary {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  color: #04070e;
  border-color: transparent;
  font-weight: 600;
}
.btn-primary:hover { box-shadow: var(--glow); }

.btn svg { width: 16px; height: 16px; }

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
              backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; }

/* the mark ships in two inks; show whichever suits the current theme */
.brand-mark { display: inline-flex; flex: none; }
.brand-mark img { width: 34px; height: 34px; display: block; }
:root[data-theme="dark"]  .logo-on-light { display: none; }
:root[data-theme="light"] .logo-on-dark  { display: none; }
.brand-name {
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.brand-name span { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  position: relative;
  padding: 9px 16px;
  font-size: 0.92rem;
  color: var(--text-dim);
  border-radius: 999px;
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--bg-elev-2); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.nav-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg-elev-2);
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; }

.nav-toggle { display: none; }

/* ---------- sections ---------- */

section { position: relative; padding: 110px 0; }
.section-head { max-width: 700px; margin-bottom: 56px; }

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.hero h1 { margin-bottom: 24px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev-2);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 26px;
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 70%, transparent);
  animation: ping 2.4s infinite;
}
@keyframes ping {
  70%  { box-shadow: 0 0 0 9px rgba(53, 230, 208, 0); }
  100% { box-shadow: 0 0 0 0  rgba(53, 230, 208, 0); }
}

/* orbital hero visual */
.orbit {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  animation: spin 26s linear infinite;
}
.orbit-ring:nth-child(2) { inset: 12%; border-style: dashed; animation-duration: 20s; animation-direction: reverse; }
.orbit-ring:nth-child(3) { inset: 24%; border-color: color-mix(in srgb, var(--accent) 40%, transparent); animation-duration: 34s; }
.orbit-ring::after {
  content: "";
  position: absolute;
  top: -4px; left: 50%;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow);
}
@keyframes spin { to { transform: rotate(360deg); } }

.orbit-core {
  width: 46%;
  filter: drop-shadow(0 0 30px rgba(53, 230, 208, 0.35));
  animation: float 7s ease-in-out infinite;
}
@keyframes float {
  50% { transform: translateY(-14px); }
}

/* ---------- cards ---------- */

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--bg-elev-2), var(--bg-elev));
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); }

/* cursor-tracked sheen, coords set in main.js */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 50%),
              color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%);
  pointer-events: none;
}
.card:hover::before { opacity: 1; }

.card h3 { margin-bottom: 10px; }
.card p  { margin: 0; font-size: 0.95rem; }

.card-icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: var(--r-md);
  margin-bottom: 20px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  color: var(--accent);
}
.card-icon svg { width: 22px; height: 22px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text-faint);
}

/* ---------- locations ---------- */

.loc-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 28px;
  align-items: start;
}
.loc-list { display: flex; flex-direction: column; gap: 12px; }
.loc-item {
  text-align: left;
  width: 100%;
  padding: 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
              transform 0.3s var(--ease);
}
.loc-item:hover { transform: translateX(4px); border-color: var(--line-strong); }
.loc-item.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-elev));
}
.loc-city { font-weight: 600; display: flex; align-items: center; gap: 9px; }
.loc-role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.loc-panel {
  min-height: 460px;
  padding: 34px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--bg-elev-2), var(--bg-elev));
}
.loc-map {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--bg);
  overflow: hidden;
  margin-bottom: 26px;
}
.loc-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.map-note {
  margin: -16px 0 24px;
  font-size: 0.84rem;
  text-align: right;
  color: var(--text-faint);
}
.map-note a { color: var(--accent); }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 24px;
}
.detail-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 5px;
}

/* ---------- cta band ---------- */

.cta-band {
  padding: 64px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(600px 300px at 20% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
    linear-gradient(160deg, var(--bg-elev-2), var(--bg-elev));
  text-align: center;
}

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 60px 0 34px;
  margin-top: 40px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 44px;
}
.foot-col h4 {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 16px;
}
.foot-col a {
  display: block;
  padding: 5px 0;
  font-size: 0.92rem;
  color: var(--text-dim);
  transition: color 0.3s var(--ease);
}
.foot-col a:hover { color: var(--accent); }
.foot-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--text-faint);
  flex-wrap: wrap;
}

/* ---------- scroll reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .orbit { max-width: 420px; margin: 0 auto; }
  .loc-layout { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  section { padding: 76px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 24px; }
  .detail-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: grid; }
  .nav-links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 18px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    transition: transform 0.45s var(--ease);
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 16px; font-size: 1rem; }
  .nav-links a.active::after { left: 16px; right: auto; width: 22px; }
}