/* ==========================================================================
   Alpha Key Group Limited - main stylesheet
   Edit the colour system in the :root block below.
   ========================================================================== */

:root {
  /* Colour system */
  --primary: #0a1b33;          /* deep navy */
  --primary-2: #13294b;        /* lighter navy for layered surfaces */
  --secondary: #1b57f5;        /* electric blue */
  --secondary-dark: #1244c9;   /* blue hover state */
  --accent: #e2a93b;           /* brass - used sparingly */
  --dark: #18202d;             /* body text */
  --muted: #4b586b;            /* secondary text */
  --light: #f4f6fa;            /* page tint */
  --sky: #e8effe;              /* pale blue tint */
  --line: #dce2ec;             /* hairlines */
  --white: #ffffff;
  --danger: #b42318;
  --success: #0e7a3e;

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

  /* Layout */
  --gutter: clamp(20px, 5vw, 40px);
  --max: 1200px;
  --radius: 12px;
  --radius-lg: 18px;
  --header-h: 80px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--dark);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  color: var(--primary);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
  text-wrap: balance;
}

h1 { font-size: clamp(2.35rem, 5.4vw, 4.1rem); letter-spacing: -0.035em; line-height: 1.04; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; line-height: 1.25; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--secondary); text-underline-offset: 3px; }
a:hover { color: var(--secondary-dark); }

ul, ol { padding-left: 1.2em; }

small, .small { font-size: 0.875rem; }

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

::selection { background: var(--secondary); color: var(--white); }

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  background: var(--primary);
  color: var(--white);
  padding: 12px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; color: var(--white); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Layout ---------- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--max));
  margin-inline: auto;
}

.section { padding: clamp(64px, 9vw, 112px) 0; }
.section--tint { background: var(--light); }
.section--dark { background: var(--primary); color: rgba(255, 255, 255, 0.82); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark :focus-visible { outline-color: var(--accent); }

.section-head { max-width: 680px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head p { color: var(--muted); font-size: 1.125rem; }
.section--dark .section-head p { color: rgba(255, 255, 255, 0.78); }

.lead { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--muted); max-width: 54ch; }

.placeholder {
  background: #fff3c4;
  color: #5a4300;
  padding: 0 0.3em;
  border-radius: 3px;
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 26px;
  border: 2px solid transparent;
  border-radius: 999px;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s var(--ease), box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--secondary); color: var(--white); }
.btn--primary:hover { background: var(--secondary-dark); color: var(--white); box-shadow: 0 8px 20px rgba(27, 87, 245, 0.28); }

.btn--ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn--ghost:hover { background: var(--primary); color: var(--white); }

.btn--light { background: var(--white); color: var(--primary); }
.btn--light:hover { background: var(--primary); color: var(--white); }

.btn[disabled] { opacity: 0.7; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Header / navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.25s;
}
.site-header.is-compact { box-shadow: 0 6px 24px rgba(10, 27, 51, 0.08); }

.header-inner {
  display: flex;
  align-items: center;
  min-height: var(--header-h);
  gap: 24px;
  transition: min-height 0.25s var(--ease);
}
.site-header.is-compact .header-inner { min-height: 62px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--primary);
  flex-shrink: 0;
}
.brand:hover { color: var(--primary); }
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; transition: transform 0.35s var(--ease); }
.brand:hover .brand-mark { transform: rotate(-8deg); }
.site-header.is-compact .brand-mark { width: 34px; height: 34px; }

.brand-text { display: flex; flex-direction: column; line-height: 1; text-transform: uppercase; }
.brand-name { font-size: 1.1rem; font-weight: 800; letter-spacing: 0.08em; }
.brand-sub { font-size: 0.64rem; font-weight: 600; letter-spacing: 0.28em; margin-top: 5px; color: var(--secondary); }

.nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 36px); list-style: none; margin: 0; padding: 0; }
.nav-cta-item { display: none; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  color: var(--dark);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 2px;
  background: var(--secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-link:hover { color: var(--secondary); }
.nav-link:hover::after, .nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--secondary); }

.header-cta { min-height: 44px; padding: 10px 22px; }

.nav-toggle {
  display: none;
  position: relative;
  width: 46px; height: 46px;
  margin-left: auto;
  padding: 0;
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle-bar {
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s, top 0.3s var(--ease);
}
.nav-toggle-bar:nth-child(1) { top: 15px; }
.nav-toggle-bar:nth-child(2) { top: 22px; }
.nav-toggle-bar:nth-child(3) { top: 29px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---------- Home hero ---------- */
.hero {
  background: var(--light);
  padding: clamp(40px, 6vw, 88px) 0 clamp(56px, 8vw, 112px);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero-copy h1 { margin-bottom: 0.5em; font-size: clamp(2.1rem, 4.2vw, 3.2rem); }
.h1-line { display: block; }
.hero-copy .lead { margin-bottom: 2em; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin: 2.2em 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
}
.hero-meta li { padding: 0 16px; border-left: 2px solid var(--accent); line-height: 1.2; }
.hero-meta li:first-child { padding-left: 0; border-left: 0; }

.hero-visual { max-width: 580px; margin-inline: auto; width: 100%; }
.hero-art { width: 100%; border-radius: 24px; box-shadow: 0 30px 60px -24px rgba(10, 27, 51, 0.45); }

/* ---------- Inner page hero ---------- */
.page-hero {
  background: var(--light);
  padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}
.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
}
.page-hero h1 { font-size: clamp(2.2rem, 4.8vw, 3.5rem); margin-bottom: 0.45em; }
.page-art { width: 100%; max-width: 340px; margin-inline: auto; }

.jump-links { display: flex; flex-wrap: wrap; gap: 10px; margin: 2em 0 0; padding: 0; list-style: none; }
.jump-links a {
  display: inline-block;
  padding: 9px 18px;
  border: 1.5px solid var(--line);
  background: var(--white);
  border-radius: 999px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}
.jump-links a:hover { border-color: var(--secondary); color: var(--secondary); }

/* ---------- Icons ---------- */
.icon { width: 28px; height: 28px; flex-shrink: 0; }
.icon-box {
  display: inline-grid;
  place-items: center;
  width: 56px; height: 56px;
  background: var(--sky);
  color: var(--secondary);
  border-radius: var(--radius);
  flex-shrink: 0;
}
.icon-box .icon { width: 30px; height: 30px; }

.arrow { width: 18px; height: 18px; transition: transform 0.25s var(--ease); }

/* ---------- Home: introduction ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
}
.split--top { align-items: start; }
.split-text p { color: var(--muted); }
.split-text .text-link { margin-top: 0.6em; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  text-decoration: none;
  color: var(--secondary);
}
.text-link:hover .arrow { transform: translateX(4px); }

.discipline-list { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.discipline {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius);
}
.discipline--marketing { border-left-color: var(--secondary); }
.discipline--design { border-left-color: var(--accent); }
.discipline--it { border-left-color: var(--primary); }
.discipline h3 { margin-bottom: 0.25em; }
.discipline p { margin: 0; color: var(--muted); font-size: 1rem; }

/* ---------- Cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card {
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3vw, 36px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--secondary);
  box-shadow: 0 18px 40px -18px rgba(10, 27, 51, 0.25);
}
.card .icon-box { margin-bottom: 24px; }
.card p { color: var(--muted); }
.card .text-link { margin-top: auto; padding-top: 12px; }
.card:hover .arrow { transform: translateX(4px); }

/* ---------- Why choose us ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 40px; margin: 0; padding: 0; list-style: none; }
.why-item { padding: 32px 0 8px; border-top: 1px solid rgba(255, 255, 255, 0.2); }
.why-item .icon { width: 36px; height: 36px; color: var(--accent); margin-bottom: 22px; }
.why-item h3 { margin-bottom: 0.5em; }
.why-item p { margin: 0; font-size: 1rem; color: rgba(255, 255, 255, 0.78); }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.process-step { position: relative; }
.process-node { width: 60px; height: 60px; margin-bottom: 22px; }
.process-node circle.ring { fill: var(--white); stroke: var(--line); stroke-width: 2; }
.process-node circle.arc { fill: none; stroke: var(--secondary); stroke-width: 3; stroke-linecap: round; }
.process-node text { font-family: var(--font); font-size: 18px; font-weight: 700; fill: var(--primary); }

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 29px;
  left: 72px;
  width: calc(100% - 72px + 32px - 12px);
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--secondary) 0 8px, transparent 8px 14px);
  transform-origin: left;
}
.js .process:not(.is-visible) .process-step::after { transform: scaleX(0); }
.js .process-step::after { transition: transform 0.9s var(--ease) 0.3s; }

.process-step h3 { margin-bottom: 0.35em; }
.process-step p { color: var(--muted); font-size: 1rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--secondary);
  color: var(--white);
  padding: clamp(56px, 8vw, 96px) 0;
}
.cta-band h2 { color: var(--white); max-width: 20ch; margin-bottom: 0.4em; }
.cta-band p { color: rgba(255, 255, 255, 0.92); font-size: 1.125rem; max-width: 46ch; }
.cta-band :focus-visible { outline-color: var(--white); }
.cta-inner { position: relative; z-index: 1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px 48px; }
.cta-band .btn-row { flex-shrink: 0; }
.cta-art { position: absolute; right: -40px; top: 50%; width: 460px; transform: translateY(-50%); opacity: 0.16; pointer-events: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--primary); color: rgba(255, 255, 255, 0.78); padding: clamp(48px, 7vw, 80px) 0 28px; font-size: 0.98rem; }
.site-footer :focus-visible { outline-color: var(--accent); }
.site-footer a { color: rgba(255, 255, 255, 0.86); text-decoration: none; }
.site-footer a:hover { color: var(--white); text-decoration: underline; }
.site-footer .brand { color: var(--white); }
.site-footer .brand-sub { color: var(--accent); }
.site-footer .placeholder { background: rgba(226, 169, 59, 0.2); color: #f7d58c; }

.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 44px; }
.footer-tagline { margin: 20px 0 10px; font-weight: 600; color: var(--white); }
.footer-about { max-width: 34ch; }
.footer-heading { font-size: 0.95rem; color: var(--white); letter-spacing: 0.01em; margin-bottom: 1em; }
.footer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-contact { font-style: normal; display: grid; gap: 10px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 0.875rem;
}
.footer-legal { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 0; padding: 0; }
.footer-company { width: 100%; margin: 0; color: rgba(255, 255, 255, 0.66); }

/* ---------- Services page ---------- */
.service-group { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 88px); align-items: start; scroll-margin-top: calc(var(--header-h) + 16px); }
.service-intro { position: sticky; top: calc(var(--header-h) + 28px); }
.service-intro .icon-box { margin-bottom: 24px; width: 64px; height: 64px; }
.service-intro .icon-box .icon { width: 34px; height: 34px; }
.service-intro p { color: var(--muted); }

.service-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.service-item { position: relative; padding: 22px 0; border-bottom: 1px solid var(--line); transition: padding-left 0.3s var(--ease); }
.service-item::before {
  content: "";
  position: absolute;
  left: 0; top: 22px; bottom: 22px;
  width: 3px;
  background: var(--secondary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s var(--ease);
}
.service-item h3 { margin-bottom: 0.25em; font-size: 1.125rem; }
.service-item p { margin: 0; color: var(--muted); font-size: 1rem; }
@media (hover: hover) {
  .service-item:hover { padding-left: 20px; }
  .service-item:hover::before { transform: scaleY(1); }
}

/* ---------- About page ---------- */
.venn { width: 100%; max-width: 440px; margin-inline: auto; }
.approach-points { margin: 1.6em 0 0; padding: 0; list-style: none; display: grid; gap: 18px; }
.approach-points li { padding-left: 20px; border-left: 3px solid var(--accent); }
.approach-points strong { display: block; color: var(--primary); }
.approach-points span { color: var(--muted); }

.values-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 24px; }
.value { grid-column: span 2; }
.value:nth-child(n + 4) { grid-column: span 3; }
.value h3 { margin-bottom: 0.35em; }
.value p { margin: 0; }

.mission { max-width: 880px; }
.mission-statement { font-size: clamp(1.5rem, 3.2vw, 2.4rem); line-height: 1.28; letter-spacing: -0.02em; font-weight: 600; color: var(--white); margin: 0 0 0.8em; text-wrap: balance; }
.mission-note { margin: 0; color: rgba(255, 255, 255, 0.78); max-width: 60ch; }
.mission-label { display: inline-block; margin-bottom: 1.4em; padding-bottom: 8px; border-bottom: 2px solid var(--accent); color: var(--white); font-weight: 600; }

/* ---------- Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.contact-intro h2 { font-size: clamp(1.75rem, 3.4vw, 2.4rem); }
.contact-intro p { color: var(--muted); }

.contact-details { margin: 2em 0 0; padding: 0; list-style: none; display: grid; gap: 20px; }
.contact-details li { display: flex; gap: 16px; align-items: flex-start; }
.contact-details .icon-box { width: 46px; height: 46px; }
.contact-details .icon-box .icon { width: 22px; height: 22px; }
.contact-label { display: block; font-size: 0.875rem; color: var(--muted); }
.contact-value { font-weight: 600; color: var(--primary); }

.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 40px); box-shadow: 0 24px 50px -30px rgba(10, 27, 51, 0.35); }
.form-card h2 { font-size: 1.5rem; margin-bottom: 0.3em; }
.form-note { color: var(--muted); font-size: 0.95rem; margin-bottom: 1.6em; }

.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 20px; }
.field { margin-bottom: 20px; }
.field label, .field .label-text { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.95rem; color: var(--primary); }
.field .optional { font-weight: 400; color: var(--muted); }

.input, .select, .textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  font: inherit;
  font-size: 1rem;
  color: var(--dark);
  background: var(--white);
  border: 1.5px solid #aab5c6;
  border-radius: 10px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.textarea { min-height: 140px; resize: vertical; }
.select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 42px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%230a1b33' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
}
.input:hover, .select:hover, .textarea:hover { border-color: var(--primary); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(27, 87, 245, 0.25); }
.input[aria-invalid="true"], .select[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--danger); }
.input[aria-invalid="true"]:focus, .select[aria-invalid="true"]:focus, .textarea[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(180, 35, 24, 0.22); }

.field-error { margin: 6px 0 0; color: var(--danger); font-size: 0.9rem; font-weight: 500; }

.consent { display: flex; gap: 12px; align-items: flex-start; }
.consent input { width: 22px; height: 22px; margin: 2px 0 0; flex-shrink: 0; accent-color: var(--secondary); }
.consent label { margin: 0; font-weight: 400; font-size: 0.95rem; color: var(--dark); }

.hp-field { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-status { margin: 0 0 20px; padding: 14px 16px; border-radius: 10px; font-size: 0.98rem; border: 1px solid transparent; }
.form-status.is-success { background: #e7f6ec; border-color: #9fd8b3; color: #0b5a2e; }
.form-status.is-error { background: #fdecea; border-color: #f2b3ad; color: #8a1a10; }
.form-status.is-info { background: #fff6e0; border-color: #f0d28a; color: #5a4300; }

.form-submit { width: 100%; margin-top: 4px; }

/* ---------- Legal pages ---------- */
.legal { max-width: 760px; }
.legal h2 { font-size: 1.4rem; margin-top: 2.2em; margin-bottom: 0.6em; }
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { line-height: 1.75; }
.legal li { margin-bottom: 0.5em; }
.legal-meta { color: var(--muted); font-size: 0.95rem; }

/* ---------- Animation ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Hero illustration */
.hero-art .float-a { animation: float 7s ease-in-out infinite; }
.hero-art .float-b { animation: float 8s ease-in-out -2s infinite; }
.hero-art .float-c { animation: float 9s ease-in-out -4s infinite; }
.hero-art .orbit, .page-art .orbit { transform-box: fill-box; transform-origin: center; animation: spin 60s linear infinite; }
.hero-art .flow { stroke-dasharray: 4 7; animation: flow 1.6s linear infinite; }
.hero-art .bar { transform-box: fill-box; transform-origin: bottom; animation: grow 1.1s var(--ease) backwards; }
.hero-art .bar:nth-of-type(2) { animation-delay: 0.1s; }
.hero-art .bar:nth-of-type(3) { animation-delay: 0.2s; }
.hero-art .bar:nth-of-type(4) { animation-delay: 0.3s; }
.hero-art .draw { stroke-dasharray: 1; animation: draw 1.8s var(--ease) 0.4s backwards; }
.hero-art .blink { animation: blink 1.2s steps(2, start) infinite; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes flow { to { stroke-dashoffset: -22; } }
@keyframes grow { from { transform: scaleY(0); } }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes blink { to { opacity: 0; } }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 32px; }
  .process-step:nth-child(2)::after { display: none; }
}

@media (max-width: 960px) {
  :root { --header-h: 68px; }

  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-cta-item { display: block; padding-top: 18px; }
  .nav-cta-item .btn { width: 100%; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    margin: 0;
    max-height: calc(100vh - var(--header-h));
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    padding: 8px var(--gutter) 28px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -20px rgba(10, 27, 51, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0s linear 0.25s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list li { border-bottom: 1px solid var(--line); }
  .nav-list li.nav-cta-item { border-bottom: 0; }
  .nav-link { display: block; padding: 16px 4px; font-size: 1.1rem; }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] { box-shadow: inset 3px 0 0 var(--secondary); padding-left: 16px; }

  .hero-grid, .split, .contact-grid, .service-group { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { max-width: 520px; }
  .service-intro { position: static; }
  .page-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .page-art { display: none; }

  .card-grid { grid-template-columns: minmax(0, 1fr); }
  .card { flex-direction: row; flex-wrap: wrap; }

  .values-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value, .value:nth-child(n + 4) { grid-column: auto; }
  .value:last-child { grid-column: 1 / -1; }

  .cta-art { opacity: 0.1; right: -120px; }
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
  .footer-contact-col { grid-column: 1 / -1; }

  .process { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .process-step { display: grid; grid-template-columns: 60px minmax(0, 1fr); column-gap: 20px; padding-bottom: 36px; }
  .process-step:last-child { padding-bottom: 0; }
  .process-node { grid-row: span 2; margin: 0; }
  .process-step h3 { margin-top: 4px; }
  .process-step:not(:last-child)::after {
    display: block !important;
    top: 66px; left: 29px;
    width: 2px;
    height: calc(100% - 72px);
    background: repeating-linear-gradient(180deg, var(--secondary) 0 8px, transparent 8px 14px);
    transform-origin: top;
  }
  .js .process:not(.is-visible) .process-step::after { transform: scaleY(0); }
}

@media (max-width: 600px) {
  body { font-size: 1rem; }
  .why-grid { grid-template-columns: minmax(0, 1fr); }
  .form-row { grid-template-columns: minmax(0, 1fr); }
  .values-grid { grid-template-columns: minmax(0, 1fr); }
  .btn-row .btn { width: 100%; }
  .card { display: flex; flex-direction: column; }
  .discipline { padding: 20px; gap: 16px; }
  .hero-meta { gap: 8px 18px; font-size: 0.9rem; }
  .hero-meta li, .hero-meta li:first-child { padding: 0 0 0 14px; border-left: 0; position: relative; }
  .hero-meta li::before { content: ""; position: absolute; left: 0; top: 0.35em; width: 7px; height: 7px; background: var(--accent); border-radius: 2px; }
  .cta-inner { align-items: flex-start; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .brand-name { font-size: 1rem; }
  .brand-mark { width: 36px; height: 36px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .js .process:not(.is-visible) .process-step::after { transform: none; }
}