/* =========================================================
   Alderframe — styles.css
   Refined dark-mode-first design system.
   Inter Tight for display, Inter for body.
   ========================================================= */

:root {
  /* Palette ------------------------------------------------ */
  --bg: #000000;
  --bg-elev-1: #08090b;
  --bg-elev-2: #0c0d10;
  --surface: #0a0b0e;
  --border: #15171b;
  --border-strong: #22252b;
  --hairline: rgba(255, 255, 255, 0.06);

  --text: #f3f4f6;
  --text-secondary: #c8cad0;
  --text-muted: #9a9ca4;
  --text-dim: #74767e;

  /* Blue accent — used sparingly */
  --accent: #6a9bff;
  --accent-strong: #93b6ff;
  --accent-soft: rgba(106, 155, 255, 0.09);
  --accent-glow: rgba(106, 155, 255, 0.22);

  /* Typography -------------------------------------------- */
  --font-display: "Inter Tight", "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-sans:    "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Radii / shape ----------------------------------------- */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  /* Layout ------------------------------------------------ */
  --container: 1200px;
  --container-narrow: 720px;
  --gutter: clamp(20px, 4vw, 32px);

  /* Motion ------------------------------------------------ */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --ease-out: cubic-bezier(.16, .84, .24, 1);
}

/* =========================================================
   Reset / base
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 240ms var(--ease-out), opacity 240ms var(--ease-out);
}

a:hover { color: var(--text); }

button { font: inherit; cursor: pointer; }

:focus { outline: none; }
:focus-visible {
  outline: 1.5px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection {
  background: rgba(106, 155, 255, 0.22);
  color: var(--text);
}

/* =========================================================
   Typography
   ========================================================= */

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0 0 0.5em;
  color: var(--text);
}

h1 {
  font-size: clamp(2.6rem, 6.4vw, 5.4rem);
  letter-spacing: -0.04em;
  font-weight: 500;
  line-height: 0.98;
}

h2 {
  font-size: clamp(1.85rem, 3.4vw, 2.85rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h3 {
  font-size: clamp(1.1rem, 1.5vw, 1.25rem);
  letter-spacing: -0.015em;
  font-weight: 500;
  line-height: 1.25;
}

h4 {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--text-dim);
}

p { margin: 0 0 1em; }
p + p { margin-top: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  background: var(--text-dim);
}

.muted { color: var(--text-muted); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 0.3em;
  transition: color 240ms var(--ease-out), border-color 240ms var(--ease-out), gap 240ms var(--ease-out);
}
.link-arrow:hover {
  color: var(--accent-strong);
  border-color: var(--accent);
  gap: 0.75em;
}

/* =========================================================
   Layout
   ========================================================= */

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

.container.narrow { max-width: var(--container-narrow); }

.section {
  padding: clamp(5rem, 11vw, 9rem) 0;
  position: relative;
}

.section + .section { padding-top: clamp(5rem, 11vw, 9rem); }

/* Sharp, refined section divider */
.section-divider {
  position: relative;
  margin: 0;
}
.section-divider::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(1100px, 92vw);
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-strong) 35%, var(--border-strong) 65%, transparent 100%);
  opacity: 0.7;
}

.section-head {
  max-width: 760px;
  margin: 0 0 3.5rem;
}

.section-lede {
  color: var(--text-muted);
  font-size: clamp(1rem, 1.25vw, 1.075rem);
  max-width: 56ch;
  margin-top: 1rem;
  line-height: 1.55;
}

.split {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.grid {
  display: grid;
  gap: 1.25rem;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* =========================================================
   Skip link
   ========================================================= */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 16px;
  background: var(--text);
  color: #000;
  border-radius: 8px;
  z-index: 1000;
  font-weight: 500;
  font-size: 0.9rem;
}
.skip-link:focus { left: 14px; top: 14px; }

/* =========================================================
   Header / nav
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 400ms var(--ease-out), background 400ms var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(0, 0, 0, 0.78);
  border-bottom-color: var(--border);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1;
}
.brand:hover { color: var(--text); }

.brand-mark {
  display: inline-flex;
  width: 28px;
  height: 28px;
  color: var(--text);
  transition: transform 600ms var(--ease-out);
}

.brand:hover .brand-mark { transform: rotate(-4deg); }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.018em;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 400;
  padding: 0.4rem 0;
  position: relative;
  transition: color 240ms var(--ease-out);
}
.primary-nav a:hover { color: var(--text); }

.primary-nav a.is-active {
  color: var(--text);
  font-weight: 500;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0;
  position: relative;
  transition: border-color 200ms var(--ease-out);
}
.nav-toggle:hover { border-color: var(--border-strong); }

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.2px;
  background: var(--text);
  margin: 4px auto;
  transition: transform 280ms var(--ease-out), opacity 280ms var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.2px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.2px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */

.hero {
  position: relative;
  padding: clamp(6rem, 12vw, 9.5rem) 0 clamp(4.5rem, 10vw, 8rem);
  overflow: hidden;
  isolation: isolate;
}

/* Engineering-paper dot grid, soft-masked toward the content side */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 28% 44%, #000 0%, transparent 78%);
          mask-image: radial-gradient(ellipse 70% 60% at 28% 44%, #000 0%, transparent 78%);
  pointer-events: none;
  z-index: -2;
}

/* Hero layout — editorial content on the left, visual stage on the right */
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

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

.hero-stage {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1 / 1;
  justify-self: end;
}

.hero-composition {
  width: 100%;
  height: 100%;
  display: block;
  filter: drop-shadow(0 30px 80px rgba(0, 0, 0, 0.55));
}

/* A very slow, almost-imperceptible breathing on the central mark's glow.
   Honours prefers-reduced-motion via the global rule further below. */
@keyframes heroMarkBreathe {
  0%, 100% { opacity: 0.85; }
  50%      { opacity: 1; }
}
.hero-composition .hero-mark-glow {
  transform-origin: center;
  animation: heroMarkBreathe 8s ease-in-out infinite;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-weight: 500;
}
.hero-status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.hero-title {
  margin: 0 0 1.5rem;
  max-width: 16ch;
}

.hero-sub {
  max-width: 52ch;
  font-size: clamp(1.05rem, 1.45vw, 1.225rem);
  color: var(--text-secondary);
  margin-bottom: 2.75rem;
  line-height: 1.55;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero-glow {
  position: absolute;
  width: 780px;
  height: 780px;
  right: -200px;
  top: -240px;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 60%);
  filter: blur(120px);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

/* Page hero (secondary pages) */
.page-hero {
  padding: clamp(6rem, 11vw, 9rem) 0 clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(700px 260px at 50% -120px, rgba(106, 155, 255, 0.10), transparent 65%);
  pointer-events: none;
  z-index: -1;
}
.page-hero h1 {
  max-width: 22ch;
  font-size: clamp(2.4rem, 5vw, 4rem);
}
.page-lede {
  color: var(--text-muted);
  font-size: clamp(1.025rem, 1.25vw, 1.125rem);
  max-width: 60ch;
  margin-top: 1rem;
  line-height: 1.6;
}

/* Utility — inline-positioned action row beneath a page hero */
.hero-actions { margin-top: 2.25rem; }

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: transform 280ms var(--ease-out),
              background 240ms var(--ease-out),
              color 240ms var(--ease-out),
              border-color 240ms var(--ease-out),
              box-shadow 320ms var(--ease-out);
  will-change: transform;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--text);
  color: #050608;
  border-color: var(--text);
}
.btn-primary:hover {
  background: #fff;
  color: #050608;
  box-shadow: 0 12px 36px -16px rgba(255, 255, 255, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.025);
}

.btn-accent {
  background: var(--accent);
  color: #060912;
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  box-shadow: 0 12px 36px -14px var(--accent-glow);
}

.btn-lg { padding: 1rem 1.6rem; font-size: 1rem; }

.btn .arrow {
  display: inline-block;
  transition: transform 280ms var(--ease-out);
}
.btn:hover .arrow { transform: translateX(2px); }

/* =========================================================
   Discipline cards (What we do)
   ========================================================= */

.card {
  position: relative;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem 1.75rem;
  transition: border-color 360ms var(--ease-out),
              background 360ms var(--ease-out),
              transform 480ms var(--ease-out);
  overflow: hidden;
  isolation: isolate;
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
}

.card:hover {
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
  transform: translateY(-2px);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.25rem;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  transition: color 320ms var(--ease-out), border-color 320ms var(--ease-out);
}
.card-icon svg { width: 18px; height: 18px; }
.card:hover .card-icon { color: var(--accent-strong); border-color: rgba(106, 155, 255, 0.4); }

.card-index {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.card h3 { margin: 0 0 0.55rem; }
.card p {
  color: var(--text-muted);
  font-size: 0.97rem;
  margin: 0;
  line-height: 1.6;
}

/* =========================================================
   Product cards (Coming soon)
   ========================================================= */

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elev-1);
  overflow: hidden;
  isolation: isolate;
  transition: border-color 360ms var(--ease-out),
              background 360ms var(--ease-out),
              transform 480ms var(--ease-out);
}

.product-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
}

.product-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
  transform: translateY(-2px);
}

.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--border);
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 500;
}
.product-status .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(106, 155, 255, 0.12);
}

.product-index {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.product-visual {
  position: relative;
  aspect-ratio: 5 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(420px 220px at 50% 60%, rgba(106, 155, 255, 0.07), transparent 60%),
    linear-gradient(180deg, #0b0c10 0%, #07080b 100%);
  overflow: hidden;
}

/* Subtle blueprint dot grid inside visual */
.product-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: 0 0;
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 30%, transparent 80%);
          mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 30%, transparent 80%);
  pointer-events: none;
}

.product-mark {
  width: 56px;
  height: 56px;
  color: rgba(255, 255, 255, 0.16);
  transition: color 480ms var(--ease-out), transform 600ms var(--ease-out);
}
.product-card:hover .product-mark {
  color: rgba(255, 255, 255, 0.28);
  transform: scale(1.04);
}

.product-meta {
  padding: 1.5rem 1.5rem 1.7rem;
}

.kind {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.product-meta h3 { margin: 0 0 0.45rem; font-size: 1.15rem; }
.product-meta p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.55;
}

/* Single featured product — centers a lone card and lifts the logo. */
.product-feature-wrap {
  max-width: 540px;
  margin-inline: auto;
}
.product-logo {
  position: relative;
  z-index: 1;
  width: 62%;
  max-width: 220px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  filter: drop-shadow(0 14px 32px rgba(0, 0, 0, 0.45));
  transition: transform 600ms var(--ease-out);
}
.product-card:hover .product-logo {
  transform: scale(1.03);
}

/* =========================================================
   Approach (editorial)
   ========================================================= */

.approach-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.approach-list {
  display: flex;
  flex-direction: column;
}

.approach-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--border);
  transition: border-color 320ms var(--ease-out);
}
.approach-item:last-child { border-bottom: 1px solid var(--border); }

.approach-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  padding-top: 0.35rem;
}

.approach-item h3 { margin: 0 0 0.5rem; font-size: 1.2rem; }
.approach-item p {
  color: var(--text-muted);
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  max-width: 50ch;
}

/* =========================================================
   CTA panel
   ========================================================= */

.cta-panel {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(2.25rem, 5vw, 3.5rem);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(620px 220px at 12% 0%, rgba(106, 155, 255, 0.10), transparent 60%),
    linear-gradient(180deg, var(--bg-elev-1), var(--bg) 80%);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.cta-panel::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent 50%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

.cta-panel h2 { margin-bottom: 0.5rem; }
.cta-sub {
  color: var(--text-muted);
  margin: 0;
  font-size: 1.025rem;
  max-width: 44ch;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* =========================================================
   About — prose
   ========================================================= */

.prose p {
  font-size: clamp(1.05rem, 1.25vw, 1.125rem);
  color: var(--text-secondary);
  margin-bottom: 1.4rem;
  max-width: 64ch;
  line-height: 1.7;
}
.prose p:first-of-type {
  font-size: clamp(1.15rem, 1.5vw, 1.35rem);
  color: var(--text);
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 1.55;
}

.enquiry-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 1.75rem;
}
.enquiry-list li {
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.55;
}
.enquiry-list li:last-child { border-bottom: 1px solid var(--border); }
.enquiry-list strong {
  color: var(--text);
  font-weight: 500;
  margin-right: 0.4rem;
}

/* =========================================================
   Contact form
   ========================================================= */

.contact-form {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.field label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  font-weight: 500;
  text-transform: uppercase;
}

.field input,
.field textarea {
  font: inherit;
  color: var(--text);
  background: #06070a;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.95rem;
  transition: border-color 240ms var(--ease-out),
              background 240ms var(--ease-out),
              box-shadow 240ms var(--ease-out);
  width: 100%;
  resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-dim); }

.field input:hover,
.field textarea:hover { border-color: var(--border-strong); }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: rgba(106, 155, 255, 0.55);
  background: #07080d;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.contact-form .btn { align-self: flex-start; margin-top: 0.25rem; }

.form-note { font-size: 0.83rem; margin: 0; line-height: 1.55; }

/* =========================================================
   Legal documents
   ========================================================= */

.notice {
  border: 1px solid var(--border);
  background: rgba(106, 155, 255, 0.04);
  border-left: 2px solid var(--accent);
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius-sm);
  margin-bottom: 2.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}
.notice strong { color: var(--text); margin-right: 0.3rem; font-weight: 500; }

.review-tag {
  display: inline-block;
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(106, 155, 255, 0.10);
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  margin-left: 0.45rem;
  vertical-align: middle;
  font-weight: 500;
  text-transform: uppercase;
}

.legal-doc h2 {
  font-size: 1.175rem;
  margin: 2.25rem 0 0.7rem;
  color: var(--text);
  font-weight: 500;
}
.legal-doc p, .legal-doc li {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
}
.legal-doc ul { padding-left: 1.2rem; }
.legal-doc a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 4px;
  transition: text-decoration-color 240ms var(--ease-out);
}
.legal-doc a:hover { text-decoration-color: var(--accent); color: var(--accent-strong); }
.legal-doc h3 {
  font-size: 1.02rem;
  margin: 1.6rem 0 0.5rem;
  color: var(--text);
  font-weight: 500;
}
.legal-doc ol {
  padding-left: 1.2rem;
  color: var(--text-secondary);
}
.legal-doc ol li {
  padding-left: 0.35rem;
  margin: 0.45rem 0;
}
.legal-doc code {
  font-family: "SFMono-Regular", ui-monospace, "Menlo", monospace;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--hairline, rgba(255,255,255,0.09));
  border-radius: 4px;
  padding: 0 0.32em;
  font-size: 0.88em;
}
.legal-lede {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.75;
  margin: 0 0 1.25rem;
}
.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
  border: 1px solid var(--hairline, rgba(255,255,255,0.09));
  border-radius: 10px;
  overflow: hidden;
}
.legal-table th,
.legal-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--hairline, rgba(255,255,255,0.09));
  color: var(--text-secondary);
  line-height: 1.6;
}
.legal-table thead th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.legal-table tbody tr:last-child th,
.legal-table tbody tr:last-child td { border-bottom: none; }
.legal-table th:first-child,
.legal-table td:first-child { width: 55%; }
@media (max-width: 720px) {
  .legal-table, .legal-table thead, .legal-table tbody, .legal-table tr, .legal-table th, .legal-table td { display: block; width: 100%; }
  .legal-table thead { display: none; }
  .legal-table tr { border-bottom: 1px solid var(--hairline, rgba(255,255,255,0.09)); padding: 0.6rem 0; }
  .legal-table td { border: none; padding: 0.35rem 0; }
  .legal-table td:first-child { color: var(--text); font-weight: 500; }
}

/* =========================================================
   Footer (editorial)
   ========================================================= */

.site-footer {
  border-top: 1px solid var(--border);
  padding: clamp(4rem, 8vw, 6rem) 0 2rem;
  background: #030305;
  position: relative;
}

.footer-mark {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border);
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  letter-spacing: -0.045em;
  line-height: 1;
  color: var(--text);
}

.footer-tag {
  color: var(--text-muted);
  font-size: clamp(1rem, 1.25vw, 1.075rem);
  max-width: 32ch;
  margin: 0;
  line-height: 1.55;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--border);
}

.footer-brand-block { display: flex; flex-direction: column; gap: 1rem; }
.footer-brand-block .brand { margin-bottom: 0.25rem; }

.footer-meta {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-col h4 {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin: 0 0 1.1rem;
  font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 0.65rem; }
.footer-col a {
  color: var(--text-muted);
  font-size: 0.93rem;
  transition: color 240ms var(--ease-out);
}
.footer-col a:hover { color: var(--text); }

.footer-base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.footer-base p { margin: 0; font-size: 0.85rem; color: var(--text-dim); }
.footer-base .made-in {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.footer-base .made-in::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--text-dim);
}

/* =========================================================
   Reveal animations (subtler)
   ========================================================= */

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0s !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}

@media (max-width: 960px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 2rem; }
  .approach-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .cta-panel { grid-template-columns: 1fr; gap: 1.75rem; }
  .cta-actions { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand-block { grid-column: 1 / -1; }
  .footer-mark { grid-template-columns: 1fr; gap: 1.25rem; }

  .hero-layout { grid-template-columns: 1fr; gap: 2.75rem; }
  .hero-stage {
    order: -1;
    max-width: 360px;
    justify-self: center;
    margin-bottom: 0.25rem;
  }
  .hero::before {
    -webkit-mask-image: radial-gradient(ellipse 85% 55% at 50% 55%, #000 0%, transparent 80%);
            mask-image: radial-gradient(ellipse 85% 55% at 50% 55%, #000 0%, transparent 80%);
  }
  .hero-glow {
    right: auto;
    left: 50%;
    top: -200px;
    transform: translateX(-50%);
  }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  .primary-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0 1rem;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 280ms var(--ease-out),
                transform 280ms var(--ease-out),
                visibility 0s linear 280ms;
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: opacity 280ms var(--ease-out),
                transform 280ms var(--ease-out),
                visibility 0s linear 0s;
  }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav li { border-top: 1px solid var(--border); }
  .primary-nav li:last-child { border-bottom: 1px solid var(--border); }
  .primary-nav a {
    display: block;
    padding: 1rem var(--gutter);
    font-size: 1rem;
  }

  .grid-3 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand-block { grid-column: 1 / -1; }

  .hero { padding-top: clamp(5rem, 13vw, 6.5rem); padding-bottom: clamp(4rem, 10vw, 6rem); }
  .hero-stage { max-width: 280px; }
  .hero-cta { flex-direction: column; align-items: stretch; width: 100%; }
  .hero-cta .btn { justify-content: center; width: 100%; }

  .cta-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .cta-actions .btn { justify-content: center; width: 100%; }

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

@media (max-width: 460px) {
  .footer-grid { grid-template-columns: 1fr; }
  .header-inner { height: 64px; }
  .primary-nav { top: 64px; }
  .approach-item { grid-template-columns: 40px 1fr; gap: 1rem; }
}

/* =========================================================
   Social page
   ========================================================= */

.social-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.social-grid > li { margin: 0; }

.social-card {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 1.1rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--hairline, rgba(255,255,255,0.09));
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0) 100%);
  color: inherit;
  text-decoration: none;
  transition: border-color 240ms var(--ease-out), transform 240ms var(--ease-out), background 240ms var(--ease-out);
}
.social-card:hover,
.social-card:focus-visible {
  border-color: rgba(106, 155, 255, 0.45);
  background: linear-gradient(180deg, rgba(106,155,255,0.05) 0%, rgba(255,255,255,0) 100%);
  transform: translateY(-1px);
  outline: none;
}

.social-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
}
.social-icon svg { width: 24px; height: 24px; display: block; }

.social-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}
.social-platform {
  font-family: "Inter Tight", "Inter", system-ui, sans-serif;
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}
.social-handle {
  font-size: 0.88rem;
  color: var(--accent, #6a9bff);
  font-variant-numeric: tabular-nums;
}
.social-lede {
  font-size: 0.9rem;
  color: var(--text-muted, rgba(255,255,255,0.65));
  line-height: 1.5;
  margin-top: 0.2rem;
}

.social-arrow {
  color: var(--text-dim, rgba(255,255,255,0.45));
  font-size: 1.1rem;
  transition: color 240ms var(--ease-out), transform 240ms var(--ease-out);
}
.social-card:hover .social-arrow,
.social-card:focus-visible .social-arrow {
  color: var(--accent, #6a9bff);
  transform: translateX(2px);
}

.social-footnote {
  margin-top: 2rem;
  color: var(--text-muted, rgba(255,255,255,0.65));
  font-size: 0.95rem;
}
.social-footnote a { color: var(--accent, #6a9bff); }

@media (max-width: 720px) {
  .social-grid { grid-template-columns: 1fr; }
  .social-card { grid-template-columns: 48px 1fr auto; padding: 1rem 1.1rem; }
  .social-icon { width: 48px; height: 48px; }
  .social-icon svg { width: 20px; height: 20px; }
}