/* ============================================================
   Immersive Kinetics — site styles
   Dark neon aesthetic. Tokens below drive the whole theme.
   ============================================================ */

:root {
  --bg: #05060a;
  --bg-2: #090c14;
  --panel: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --text: #edf1fa;
  --soft: #c4cde0;
  --muted: #9aa4bc;
  --faint: #74809a;
  --cyan: #2fd8ff;
  --violet: #8b5cff;
  --magenta: #ff3d81;
  --grad: linear-gradient(120deg, var(--cyan), var(--violet) 55%, var(--magenta));
  --radius: 18px;
  --font-display: "Orbitron", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --header-h: 72px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; }

::selection { background: rgba(47, 216, 255, 0.35); color: #fff; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.14); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.22); }

.container { width: min(1160px, 92vw); margin-inline: auto; }

.skip-link {
  position: absolute; left: 1rem; top: -3.5rem; z-index: 100;
  padding: 0.6rem 1rem; border-radius: 8px;
  background: var(--bg-2); color: var(--text); border: 1px solid var(--line);
  transition: top 0.25s ease;
}
.skip-link:focus { top: 1rem; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.95rem 1.7rem; border-radius: 999px;
  font-weight: 600; font-size: 0.98rem; letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, filter 0.25s ease;
}
.btn-primary {
  color: #060810; background: var(--grad);
  box-shadow: 0 10px 34px rgba(139, 92, 255, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 44px rgba(139, 92, 255, 0.5);
  filter: brightness(1.06);
}
.btn-ghost {
  color: var(--text); border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: rgba(47, 216, 255, 0.55);
  box-shadow: 0 0 30px rgba(47, 216, 255, 0.15);
  transform: translateY(-2px);
}
.btn-lg { padding: 1.05rem 2.1rem; font-size: 1.05rem; }

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

.site-header {
  position: fixed; inset-inline: 0; top: 0; z-index: 50;
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(5, 6, 10, 0.74);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom-color: var(--line);
}

.nav { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 0.65rem; text-decoration: none; }
.brand-mark { display: block; }
.brand-name {
  font-family: var(--font-display); font-weight: 700; font-size: 0.92rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--text);
}
.brand-name span {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.nav-menu { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav-menu a:not(.nav-cta) {
  position: relative; text-decoration: none; color: var(--muted);
  font-weight: 500; font-size: 0.92rem; padding: 0.35rem 0;
  transition: color 0.25s ease;
}
.nav-menu a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--grad); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
}
.nav-menu a:not(.nav-cta):hover { color: var(--text); }
.nav-menu a:not(.nav-cta):hover::after { transform: scaleX(1); }

.nav-cta {
  padding: 0.55rem 1.2rem; border-radius: 999px; text-decoration: none;
  color: var(--text); font-weight: 600; font-size: 0.9rem;
  border: 1px solid transparent;
  background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--grad) border-box;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.nav-cta:hover { box-shadow: 0 0 26px rgba(139, 92, 255, 0.4); transform: translateY(-1px); }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px;
  background: none; border: 1px solid var(--line); border-radius: 10px; cursor: pointer;
}
.nav-toggle span {
  display: block; height: 2px; width: 100%; border-radius: 2px;
  background: var(--text); transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero { position: relative; min-height: 100svh; display: grid; align-items: center; overflow: hidden; }

.hero-bg { position: absolute; inset: 0; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: center;
  filter: saturate(1.08) contrast(1.02);
  animation: heroZoom 16s ease-out forwards;
}
@keyframes heroZoom { from { transform: scale(1.12); } to { transform: scale(1); } }

.hero-veil {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 78% 30%, transparent 0%, rgba(5, 6, 10, 0.35) 62%, rgba(5, 6, 10, 0.85) 100%),
    linear-gradient(180deg, rgba(5, 6, 10, 0.6) 0%, rgba(5, 6, 10, 0.15) 34%, rgba(5, 6, 10, 0.55) 72%, var(--bg) 100%),
    linear-gradient(90deg, rgba(5, 6, 10, 0.72) 0%, rgba(5, 6, 10, 0.25) 45%, transparent 72%);
}

#particles { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero-inner { position: relative; z-index: 1; padding-block: calc(var(--header-h) + 4rem) 6rem; }

.kicker {
  display: inline-flex; align-items: center; gap: 0.7rem; margin: 0;
  font-family: var(--font-display); font-weight: 500; font-size: 0.72rem;
  letter-spacing: 0.34em; text-transform: uppercase; color: #7fe4ff;
}
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--grad); }

h1 {
  margin: 1rem 0 1.3rem; max-width: 12ch;
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.7rem, 7vw, 5.2rem); line-height: 1.05; letter-spacing: 0.01em;
}
h1 em, h2 em, .divider em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
h1 em { filter: drop-shadow(0 0 26px rgba(47, 216, 255, 0.4)); }

.lede { max-width: 40rem; margin: 0; font-size: clamp(1.05rem, 1.6vw, 1.22rem); line-height: 1.7; color: var(--soft); }

.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.4rem, 4vw, 3rem);
  margin: 3.4rem 0 0; padding: 0; list-style: none;
}
.hero-stats li { position: relative; padding-left: 1rem; }
.hero-stats li::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 2px;
  background: var(--grad); border-radius: 2px;
}
.hero-stats strong {
  display: block; font-family: var(--font-display); font-weight: 700;
  font-size: 0.95rem; letter-spacing: 0.06em;
}
.hero-stats span { color: var(--muted); font-size: 0.85rem; }

.scroll-hint {
  position: absolute; bottom: 1.8rem; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 1.5px solid rgba(255, 255, 255, 0.28); border-radius: 14px;
}
.scroll-hint::before {
  content: ""; position: absolute; top: 7px; left: 50%; margin-left: -1.5px;
  width: 3px; height: 8px; border-radius: 3px; background: var(--grad);
  animation: scrollDot 2.2s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- Section scaffolding ---------- */

.section { position: relative; padding-block: clamp(4.5rem, 10vw, 7.5rem); }

.section-head { max-width: 720px; margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.section-head p:not(.kicker) { color: var(--muted); font-size: 1.02rem; margin: 0; }

h2 {
  margin: 0.85rem 0 1rem;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.85rem, 4vw, 2.9rem); line-height: 1.12;
}

/* ---------- What we do — cards ---------- */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.5rem; }

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(47, 216, 255, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 44px rgba(47, 216, 255, 0.07);
}
.card-media { aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); }
.card-media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transform: scale(1.02); transition: transform 0.6s ease;
}
.card:hover .card-media img { transform: scale(1.07); }
.card-body { padding: 1.5rem 1.55rem 1.7rem; }
.card h3 {
  margin: 0 0 0.6rem; font-family: var(--font-display); font-weight: 700;
  font-size: 1.06rem; letter-spacing: 0.05em; text-transform: uppercase;
}
.card p { margin: 0 0 1rem; color: var(--muted); font-size: 0.95rem; }
.card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.45rem; }
.card li { position: relative; padding-left: 1.15rem; color: #b9c2d8; font-size: 0.9rem; }
.card li::before { content: "▸"; position: absolute; left: 0; color: var(--cyan); }

/* ---------- Divider ---------- */

.divider {
  position: relative; min-height: clamp(300px, 48vh, 520px);
  display: grid; place-items: center; overflow: hidden;
  border-block: 1px solid var(--line);
}
.divider img {
  position: absolute; left: 0; right: 0; top: -20%; width: 100%; height: 140%;
  object-fit: cover; will-change: transform;
}
.divider::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(90% 90% at 50% 50%, rgba(5, 6, 10, 0.25), rgba(5, 6, 10, 0.72)),
    linear-gradient(180deg, var(--bg), transparent 22% 78%, var(--bg));
}
.divider blockquote {
  position: relative; z-index: 1; margin: 0; padding: 3rem 6vw;
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.15rem, 2.6vw, 1.9rem); line-height: 1.45; text-align: center;
  max-width: 900px;
}

/* ---------- Capabilities ---------- */

.capabilities { background: var(--bg-2); }
.capabilities::before {
  content: ""; position: absolute; inset: 0;
  background: url("/assets/img/bg-circuit.jpg") center / cover no-repeat;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 18%, #000 82%, transparent);
}
.capabilities .container { position: relative; z-index: 1; }

.cap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.1rem; }

.cap {
  display: flex; gap: 0.95rem; padding: 1.2rem 1.25rem;
  border: 1px solid var(--line); border-radius: 14px;
  background: rgba(9, 12, 20, 0.66); backdrop-filter: blur(6px);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.cap:hover { border-color: rgba(139, 92, 255, 0.45); transform: translateY(-3px); }
.cap svg { flex: none; width: 26px; height: 26px; margin-top: 2px; color: var(--cyan); filter: drop-shadow(0 0 8px rgba(47, 216, 255, 0.45)); }
.cap:nth-child(3n + 2) svg { color: var(--violet); filter: drop-shadow(0 0 8px rgba(139, 92, 255, 0.45)); }
.cap:nth-child(3n) svg { color: var(--magenta); filter: drop-shadow(0 0 8px rgba(255, 61, 129, 0.4)); }
.cap h3 { margin: 0 0 0.3rem; font-size: 0.98rem; font-weight: 600; }
.cap p { margin: 0; color: var(--muted); font-size: 0.86rem; line-height: 1.55; }

/* ---------- About ---------- */

.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-copy p:not(.kicker) { margin: 0 0 1.2rem; color: var(--soft); line-height: 1.75; }

.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.6rem; }
.chip {
  padding: 0.45rem 0.95rem; border-radius: 999px;
  font-size: 0.8rem; letter-spacing: 0.04em; color: #cfe9ff;
  border: 1px solid rgba(47, 216, 255, 0.28); background: rgba(47, 216, 255, 0.06);
}

.about-visual { position: relative; }
.about-visual::before {
  content: ""; position: absolute; inset: -2rem;
  background: radial-gradient(60% 60% at 50% 50%, rgba(139, 92, 255, 0.22), transparent 70%);
}
.about-visual img {
  position: relative; display: block; width: 100%; border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* ---------- Contact ---------- */

.contact { text-align: center; }
.contact-panel {
  position: relative; max-width: 780px; margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem);
  border-radius: 24px; border: 1px solid transparent;
  background:
    linear-gradient(rgba(9, 12, 20, 0.94), rgba(9, 12, 20, 0.94)) padding-box,
    var(--grad) border-box;
  box-shadow: 0 0 90px rgba(139, 92, 255, 0.12);
}
.contact-panel .kicker { justify-content: center; }
.contact-panel h2 { margin-inline: auto; }
.contact-panel > p:not(.kicker):not(.contact-note) {
  max-width: 34rem; margin: 0 auto 2rem; color: var(--soft);
}
.contact-note { margin: 1.3rem 0 0; color: var(--faint); font-size: 0.85rem; }

/* ---------- Footer ---------- */

.site-footer { border-top: 1px solid var(--line); padding: 3rem 0 2.2rem; background: #040508; }
.foot-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; flex-wrap: wrap; }
.foot-brand p { margin: 0.8rem 0 0; color: var(--muted); font-size: 0.9rem; }
.foot-links { display: flex; flex-wrap: wrap; gap: 1.5rem; list-style: none; margin: 0.4rem 0 0; padding: 0; }
.foot-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; transition: color 0.25s ease; }
.foot-links a:hover { color: var(--text); }
.foot-base {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem;
  margin-top: 2.2rem; padding-top: 1.4rem; border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--faint); font-size: 0.82rem;
}
.foot-base p { margin: 0; }
.foot-base a { color: var(--faint); text-decoration: none; }
.foot-base a:hover { color: var(--cyan); }

/* ---------- 404 page ---------- */

.page-404 {
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(139, 92, 255, 0.14), transparent 70%),
    radial-gradient(50% 40% at 80% 90%, rgba(255, 61, 129, 0.08), transparent 70%),
    var(--bg);
}
.err-wrap {
  min-height: 100svh; display: grid; place-content: center; justify-items: center;
  gap: 0.6rem; text-align: center; padding: 2rem;
}
.err-wrap h1 { max-width: none; }
.err-wrap .btn { margin-top: 1.6rem; }

/* ---------- Reveal animations ---------- */

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
.reveal[data-delay="2"] { transition-delay: 0.24s; }
.reveal[data-delay="3"] { transition-delay: 0.36s; }
.reveal.in-view { opacity: 1; transform: none; }
html.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Motion & responsive ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .hero-bg img { animation: none; transform: none; }
  .scroll-hint { display: none; }
}

@media (max-width: 880px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 0.6rem 4vw 1.3rem;
    background: rgba(6, 8, 13, 0.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    opacity: 0; transform: translateY(-10px); pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  .nav-menu.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-menu li { width: 100%; }
  .nav-menu a:not(.nav-cta) { display: block; padding: 0.85rem 0; font-size: 1.02rem; }
  .nav-menu .nav-cta { display: inline-block; margin-top: 0.8rem; }
  .site-header:has(.nav-menu.open) { background: rgba(5, 6, 10, 0.95); border-bottom-color: transparent; }

  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: 2; max-width: 520px; }
  .scroll-hint { display: none; }
}

@media (max-height: 600px) {
  .scroll-hint { display: none; }
}