/* =========================================================
   NEXORA TECH — Design System
   A bilingual (AR/EN) technology & AI company website
   ========================================================= */

/* ---- Fonts ----
   Display/body for LTR: Space Grotesk (display) + Inter (body)
   Arabic: IBM Plex Sans Arabic (both display & body roles)
   Swapped automatically based on [lang] on <html>.
*/
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Sans+Arabic:wght@400;500;600;700&display=swap');

:root{
  /* Color tokens */
  --navy-950: #0b1120;
  --navy-900: #0f172a;
  --navy-800: #131c33;
  --navy-700: #1b2745;
  --line: rgba(148,163,184,0.14);
  --line-strong: rgba(148,163,184,0.28);

  --blue-500: #2f6fed;
  --blue-400: #4c86ff;
  --cyan-400: #22d3ee;
  --violet-500: #7c5cfc;

  --ink-0: #f8fafc;
  --ink-1: #cbd5e1;
  --ink-2: #94a3b8;
  --ink-3: #64748b;

  --success: #34d399;
  --danger: #f87171;

  /* Gradients */
  --grad-accent: linear-gradient(135deg, var(--blue-500), var(--violet-500) 60%, var(--cyan-400));
  --grad-surface: linear-gradient(180deg, rgba(47,111,237,0.08), rgba(124,92,252,0.02));

  /* Radius & shadow */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --shadow-1: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-2: 0 12px 40px -12px rgba(0,0,0,0.55);
  --shadow-glow: 0 0 0 1px rgba(124,92,252,0.25), 0 0 40px -8px rgba(47,111,237,0.35);

  /* Type scale */
  --step--1: clamp(0.82rem, 0.8rem + 0.1vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1: clamp(1.15rem, 1.08rem + 0.35vw, 1.35rem);
  --step-2: clamp(1.4rem, 1.25rem + 0.7vw, 1.85rem);
  --step-3: clamp(1.8rem, 1.5rem + 1.4vw, 2.6rem);
  --step-4: clamp(2.3rem, 1.8rem + 2.4vw, 3.75rem);

  --font-display: 'Space Grotesk', 'IBM Plex Sans Arabic', sans-serif;
  --font-body: 'Inter', 'IBM Plex Sans Arabic', sans-serif;

  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --dur-fast: 150ms;
  --dur-med: 320ms;
  --ease: cubic-bezier(.22,.9,.32,1);
}

html[lang="ar"]{
  --font-display: 'IBM Plex Sans Arabic', 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans Arabic', 'Inter', sans-serif;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body{
  margin:0;
  background: var(--navy-950);
  color: var(--ink-1);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--ink-0);
  line-height: 1.15;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}
h1{ font-size: var(--step-4); font-weight: 700; }
h2{ font-size: var(--step-3); font-weight: 700; }
h3{ font-size: var(--step-2); font-weight: 600; }
h4{ font-size: var(--step-1); font-weight: 600; }
p{ margin: 0 0 1em; color: var(--ink-1); }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }

:focus-visible{
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 4px;
}

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

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

.skip-link{
  position:absolute; inset-inline-start:1rem; top:-100px;
  background: var(--blue-500); color:#fff; padding:.7rem 1.1rem;
  border-radius: var(--r-sm); z-index:200; transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus{ top: 1rem; }

/* ---------- Background lattice (signature motif) ---------- */
.bg-lattice{
  position: fixed; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(700px 500px at 15% -5%, rgba(47,111,237,0.16), transparent 60%),
    radial-gradient(600px 500px at 105% 10%, rgba(124,92,252,0.14), transparent 60%),
    var(--navy-950);
}
.bg-lattice::after{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(1200px 700px at 50% 0%, #000 30%, transparent 85%);
  opacity:.5;
}

/* ---------- Eyebrow / node label (structural device: marks a topic node, not a step) ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:.55rem;
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight:600;
  letter-spacing:.08em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 0.9rem;
}
.eyebrow::before{
  content:"";
  width:7px; height:7px; border-radius:50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(34,211,238,0.18);
}

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(11,17,32,0.78);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap: 1.5rem; padding-block: 1rem;
}
.brand{
  display:flex; align-items:center; gap:.6rem;
  font-family: var(--font-display); font-weight:700; font-size:1.25rem; color: var(--ink-0);
}
.brand-mark{
  width:34px; height:34px; border-radius: 9px;
  background: var(--grad-accent);
  display:grid; place-items:center;
  box-shadow: var(--shadow-glow);
  flex-shrink:0;
}
.brand-mark svg{ width:18px; height:18px; }

.main-nav{ display:flex; align-items:center; gap: 2.1rem; }
.main-nav a{
  font-size: var(--step--1);
  font-weight:500;
  color: var(--ink-2);
  position:relative;
  padding-block: .3rem;
  transition: color var(--dur-fast) var(--ease);
}
.main-nav a:hover{ color: var(--ink-0); }
.main-nav a::after{
  content:""; position:absolute; inset-inline-start:0; bottom:-2px;
  width:0; height:2px; background: var(--grad-accent);
  transition: width var(--dur-med) var(--ease);
}
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after{ width:100%; }
.main-nav a[aria-current="page"]{ color: var(--ink-0); }

.header-controls{ display:flex; align-items:center; gap: .9rem; }

.lang-switch{
  display:flex; align-items:center; border:1px solid var(--line-strong);
  border-radius: 999px; padding: 3px; gap:2px; background: var(--navy-900);
}
.lang-switch button{
  border:0; background:transparent; color: var(--ink-2);
  padding: .35rem .8rem; border-radius:999px; font-size:.8rem; font-weight:600;
  cursor:pointer; transition: all var(--dur-fast) var(--ease);
}
.lang-switch button[aria-pressed="true"]{
  background: var(--grad-accent); color:#fff;
}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  font-family: var(--font-display); font-weight:600; font-size:.92rem;
  padding: .75rem 1.4rem; border-radius: var(--r-sm);
  border:1px solid transparent; cursor:pointer;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  white-space:nowrap;
}
.btn-primary{ background: var(--grad-accent); color:#fff; box-shadow: var(--shadow-glow); }
.btn-primary:hover{ transform: translateY(-2px); }
.btn-ghost{ background: transparent; color: var(--ink-0); border-color: var(--line-strong); }
.btn-ghost:hover{ border-color: var(--cyan-400); color: var(--cyan-400); }
.btn-block{ width:100%; }

.nav-toggle{
  display:none; border:1px solid var(--line-strong); background: var(--navy-900);
  border-radius: var(--r-sm); width:42px; height:38px; cursor:pointer;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav-toggle span{ width:18px; height:2px; background: var(--ink-0); transition: all var(--dur-med) var(--ease); border-radius:2px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding-block: clamp(3.5rem, 9vw, 7.5rem) clamp(3rem, 8vw, 6rem);
  overflow:hidden;
}
.hero-grid{
  display:grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem,5vw,4rem);
  align-items:center;
}
.hero-kicker{
  font-family: var(--font-display); font-weight:600; color: var(--cyan-400);
  letter-spacing:.08em; text-transform:uppercase; font-size:var(--step--1);
  display:flex; align-items:center; gap:.5rem; margin-bottom:1.1rem;
}
.hero h1{ margin-bottom:.55em; }
.hero h1 .grad{
  background: var(--grad-accent);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-lead{ font-size: var(--step-1); color: var(--ink-1); max-width: 46ch; margin-bottom: 1.8rem; }
.hero-actions{ display:flex; gap: .9rem; flex-wrap:wrap; margin-bottom: 2.4rem; }
.hero-stats{ display:flex; gap: clamp(1.4rem,3vw,2.6rem); flex-wrap:wrap; }
.hero-stat b{ display:block; font-family: var(--font-display); font-size: var(--step-2); color: var(--ink-0); }
.hero-stat span{ font-size: var(--step--1); color: var(--ink-2); }

/* Lattice visual (SVG animated network) */
.hero-visual{
  position:relative; aspect-ratio: 1/1; border-radius: var(--r-lg);
  border: 1px solid var(--line-strong);
  background: var(--grad-surface);
  display:grid; place-items:center; overflow:hidden;
}
.hero-visual svg{ width:100%; height:100%; }
.lattice-node{ fill: var(--cyan-400); }
.lattice-node.alt{ fill: var(--blue-400); }
.lattice-line{ stroke: url(#latticeGrad); stroke-width:1; opacity:.55; }
.pulse{ animation: pulse 2.6s ease-in-out infinite; }
@keyframes pulse{
  0%,100%{ opacity:.35; r:3; }
  50%{ opacity:1; r:5; }
}

/* ---------- Sections ---------- */
.section{ padding-block: clamp(3.5rem, 7vw, 6rem); position:relative; }
.section-head{ max-width: 62ch; margin-bottom: clamp(2rem,4vw,3rem); }
.section-alt{ background: linear-gradient(180deg, transparent, rgba(19,28,51,0.5), transparent); }

.grid{ display:grid; gap: clamp(1.2rem, 2.5vw, 1.8rem); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }

/* ---------- Cards ---------- */
.card{
  background: var(--navy-900);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow:hidden;
  display:flex; flex-direction:column;
  transition: transform var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.card:hover{ transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-2); }
.card-media{ aspect-ratio: 16/10; overflow:hidden; background: var(--navy-800); }
.card-media img{ width:100%; height:100%; object-fit:cover; transition: transform var(--dur-med) var(--ease); }
.card:hover .card-media img{ transform: scale(1.05); }
.card-body{ padding: 1.4rem 1.5rem 1.6rem; display:flex; flex-direction:column; flex:1; }
.card-body h3{ margin-bottom:.5rem; font-size: var(--step-1); }
.card-body p{ font-size: var(--step--1); color: var(--ink-2); flex:1; }
.card-link{
  margin-top:.9rem; display:inline-flex; align-items:center; gap:.4rem;
  font-family: var(--font-display); font-weight:600; font-size:.85rem; color: var(--cyan-400);
}
.card-link svg{ width:14px; height:14px; transition: transform var(--dur-fast) var(--ease); }
html[dir="rtl"] .card-link svg{ transform: scaleX(-1); }
.card-link:hover svg{ transform: translateX(3px); }
html[dir="rtl"] .card-link:hover svg{ transform: scaleX(-1) translateX(3px); }

/* Service card w/ icon */
.svc-card{ padding: 1.7rem 1.6rem; }
.svc-icon{
  width:46px; height:46px; border-radius: var(--r-sm);
  background: var(--grad-surface); border:1px solid var(--line-strong);
  display:grid; place-items:center; margin-bottom:1.1rem;
}
.svc-icon svg{ width:22px; height:22px; stroke: var(--cyan-400); }

/* Founder card */
.founder-card .card-media{ aspect-ratio: 1/1; }
.founder-role{ color: var(--cyan-400); font-size:var(--step--1); font-weight:600; margin-bottom:.6rem; display:block; }
.founder-links{ display:flex; gap:.6rem; margin-top:1rem; }
.founder-links a{
  width:34px; height:34px; border-radius:50%; border:1px solid var(--line-strong);
  display:grid; place-items:center; transition: border-color var(--dur-fast), color var(--dur-fast);
}
.founder-links a:hover{ border-color: var(--cyan-400); color: var(--cyan-400); }
.founder-links svg{ width:15px; height:15px; }

/* Value / vision tiles */
.tile{
  padding: 1.6rem; border-radius: var(--r-md);
  border: 1px solid var(--line); background: var(--navy-900);
  display:flex; gap:1rem; align-items:flex-start;
}
.tile-index{
  font-family: var(--font-display); font-weight:700; font-size:1.1rem;
  color: var(--navy-950); background: var(--grad-accent);
  width:38px; height:38px; border-radius:50%; display:grid; place-items:center;
  flex-shrink:0;
}
.tile h4{ margin-bottom:.35rem; }
.tile p{ font-size: var(--step--1); color: var(--ink-2); margin:0; }

/* Timeline (vision page) */
.timeline{ position:relative; padding-inline-start: 1.9rem; border-inline-start: 1px solid var(--line-strong); }
html[dir="rtl"] .timeline{ padding-inline-start:0; padding-inline-end:1.9rem; border-inline-start:0; border-inline-end:1px solid var(--line-strong); }
.timeline-item{ position:relative; padding-bottom: 2.4rem; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:""; position:absolute; top:.35rem; inset-inline-start:-2.36rem;
  width:12px; height:12px; border-radius:50%; background: var(--grad-accent);
  box-shadow: 0 0 0 4px var(--navy-950), 0 0 0 5px var(--line-strong);
}
html[dir="rtl"] .timeline-item::before{ inset-inline-start:auto; inset-inline-end:-2.36rem; }

/* Quote / mission banner */
.mission-banner{
  border-radius: var(--r-lg); border:1px solid var(--line-strong);
  background: var(--grad-surface);
  padding: clamp(2rem,5vw,3.4rem); text-align:center;
  position:relative; overflow:hidden;
}
.mission-banner p{
  font-family: var(--font-display); font-size: var(--step-2); color: var(--ink-0);
  max-width: 30ch; margin: 0 auto; font-weight:600; line-height:1.35;
}

/* ---------- About page split ---------- */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4rem); align-items:center; }
.split-media{ border-radius: var(--r-lg); overflow:hidden; border:1px solid var(--line-strong); position:relative; }
.split-media img{ width:100%; height:100%; object-fit:cover; }
.stat-row{ display:flex; gap: 2rem; margin-top:1.6rem; flex-wrap:wrap; }
.stat-row b{ display:block; font-family: var(--font-display); font-size:var(--step-2); color:var(--ink-0); }
.stat-row span{ font-size:var(--step--1); color:var(--ink-2); }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns: 1fr 1.15fr; gap: clamp(2rem,4vw,3.2rem); align-items:start; }
.info-card{
  border:1px solid var(--line); background: var(--navy-900); border-radius: var(--r-lg);
  padding: 1.8rem; margin-bottom: 1.1rem;
}
.info-row{ display:flex; gap:.9rem; align-items:flex-start; padding-block:.7rem; border-bottom:1px solid var(--line); }
.info-row:last-child{ border-bottom:0; }
.info-row svg{ width:19px; height:19px; stroke: var(--cyan-400); flex-shrink:0; margin-top:.15rem; }
.info-row b{ display:block; color: var(--ink-0); font-size:var(--step--1); margin-bottom:.15rem; }
.info-row span{ font-size:var(--step--1); color: var(--ink-2); }

.form-card{
  border:1px solid var(--line); background: var(--navy-900); border-radius: var(--r-lg);
  padding: clamp(1.6rem,3vw,2.4rem);
}
.field{ margin-bottom: 1.3rem; }
.field label{
  display:block; font-size:.85rem; font-weight:600; color: var(--ink-0); margin-bottom:.5rem;
}
.field .req{ color: var(--cyan-400); }
.field input, .field textarea{
  width:100%; background: var(--navy-800); border:1px solid var(--line-strong);
  border-radius: var(--r-sm); padding:.8rem .9rem; color: var(--ink-0);
  font-family: inherit; font-size: .95rem; transition: border-color var(--dur-fast) var(--ease);
}
.field input:focus, .field textarea:focus{ border-color: var(--cyan-400); outline:none; }
.field textarea{ resize: vertical; min-height: 130px; }
.field.has-error input, .field.has-error textarea{ border-color: var(--danger); }
.error-msg{ display:none; color: var(--danger); font-size:.8rem; margin-top:.4rem; }
.field.has-error .error-msg{ display:block; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-status{
  margin-top:1rem; padding: .9rem 1rem; border-radius: var(--r-sm);
  font-size:.88rem; display:none;
}
.form-status.show{ display:block; }
.form-status.ok{ display:block; background: rgba(52,211,153,0.12); border:1px solid rgba(52,211,153,0.4); color:#6ee7b7; }
.form-status.bad{ display:block; background: rgba(248,113,113,0.12); border:1px solid rgba(248,113,113,0.4); color:#fca5a5; }

/* ---------- Client logos ---------- */
.logo-strip{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.logo-tile{
  border:1px solid var(--line); background: var(--navy-900); border-radius: var(--r-md);
  padding: 1.6rem 1rem; display:flex; align-items:center; justify-content:center;
  min-height: 92px; transition: border-color var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}
.logo-tile:hover{ border-color: var(--line-strong); transform: translateY(-3px); }
.logo-tile span{
  font-family: var(--font-display); font-weight:700; font-size: var(--step-0);
  color: var(--ink-2); letter-spacing:.02em;
}

/* ---------- Category block ---------- */
.category-block{ margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.category-block:last-child{ margin-bottom:0; }
.category-head{
  display:flex; align-items:baseline; gap: .9rem; margin-bottom: 1.4rem;
  padding-bottom: .9rem; border-bottom: 1px solid var(--line);
}
.category-head h3{ margin:0; }
.category-count{
  font-family: var(--font-display); font-size: var(--step--1); color: var(--ink-3);
}

/* ---------- Flip cards (project showcase) ---------- */
.flip-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.1rem, 2.5vw, 1.6rem); }

.flip-card{
  aspect-ratio: 4 / 3;
  perspective: 1400px;
  border-radius: var(--r-lg);
}
.flip-card-link{
  display:block; width:100%; height:100%;
  border-radius: var(--r-lg);
  text-decoration:none;
}
.flip-card-link:focus-visible{
  outline: 2px solid var(--cyan-400); outline-offset: 4px;
}
.flip-inner{
  position:relative; width:100%; height:100%;
  transition: transform 0.65s var(--ease);
  transform-style: preserve-3d;
  border-radius: var(--r-lg);
}
.flip-card-link:hover .flip-inner,
.flip-card-link:focus-visible .flip-inner{
  transform: rotateY(180deg);
}

.flip-face{
  position:absolute; inset:0;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  border-radius: var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
}
.flip-front{ background: var(--navy-800); }
.flip-front img{ width:100%; height:100%; object-fit:cover; display:block; }
.flip-front .flip-label{
  position:absolute; inset-inline:0; bottom:0;
  padding: .9rem 1.1rem;
  background: linear-gradient(0deg, rgba(11,17,32,0.92), transparent);
  font-family: var(--font-display); font-weight:600; font-size:.92rem; color: var(--ink-0);
}
.flip-back{
  transform: rotateY(180deg);
  background: var(--grad-surface);
  background-color: var(--navy-900);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding: 1.5rem;
}
.flip-back h4{ margin-bottom:.5rem; font-size: var(--step-1); }
.flip-back p{ font-size: var(--step--1); color: var(--ink-2); margin-bottom: .9rem; }
.flip-back .flip-cta{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family: var(--font-display); font-weight:600; font-size:.82rem; color: var(--cyan-400);
}
.flip-back .flip-cta svg{ width:13px; height:13px; }
html[dir="rtl"] .flip-back .flip-cta svg{ transform: scaleX(-1); }

/* Note: prefers-reduced-motion is already handled globally near the top of
   this file, which sets all transition-durations to ~0 — so the flip still
   happens on hover/focus, just without the animated rotation. */

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  padding-block: clamp(2.6rem,6vw,4.5rem) clamp(1.6rem,4vw,2.4rem);
  border-bottom: 1px solid var(--line);
}
.breadcrumb{ font-size:.82rem; color: var(--ink-3); margin-bottom:1rem; display:flex; gap:.4rem; align-items:center; }
.breadcrumb a{ color: var(--ink-3); }
.breadcrumb a:hover{ color: var(--cyan-400); }
.page-hero h1{ margin-bottom:.5rem; }
.page-hero p{ font-size: var(--step-0); max-width: 60ch; color: var(--ink-2); }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--line); padding-block: 3rem 1.6rem; margin-top: 4rem; }
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.4rem;
  padding-bottom: 2.4rem; border-bottom: 1px solid var(--line);
}
.footer-brand p{ font-size:var(--step--1); color: var(--ink-2); max-width:32ch; margin-top:.8rem; }
.footer-col h4{ font-size: .82rem; text-transform:uppercase; letter-spacing:.06em; color: var(--ink-0); margin-bottom:1rem; }
.footer-col a{ display:block; font-size:var(--step--1); color: var(--ink-2); padding-block:.4rem; transition: color var(--dur-fast); }
.footer-col a:hover{ color: var(--cyan-400); }
.footer-social{ display:flex; gap:.6rem; margin-top:1rem; }
.footer-social a{
  width:36px; height:36px; border-radius:50%; border:1px solid var(--line-strong);
  display:grid; place-items:center; padding:0;
}
.footer-social a:hover{ border-color: var(--cyan-400); color: var(--cyan-400); }
.footer-social svg{ width:16px; height:16px; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; padding-top:1.6rem;
  font-size:.8rem; color: var(--ink-3); flex-wrap:wrap; gap:1rem;
}
.footer-langs{ display:flex; gap:.5rem; }
.footer-langs span{ padding:.25rem .6rem; border:1px solid var(--line-strong); border-radius:999px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ max-width: 420px; margin-inline:auto; order:-1; }
  .grid-4{ grid-template-columns: repeat(2,1fr); }
  .grid-3{ grid-template-columns: repeat(2,1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; row-gap:2rem; }
  .split{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}
@media (max-width: 860px){
  .main-nav{
    position:fixed; inset-inline:0; top:64px; bottom:0;
    background: var(--navy-950);
    flex-direction:column; align-items:flex-start; gap:0;
    padding: 1rem var(--gutter) 2rem;
    transform: translateY(-8px);
    opacity:0; visibility:hidden; pointer-events:none;
    transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), visibility var(--dur-med);
    overflow-y:auto;
    border-top: 1px solid var(--line);
  }
  .main-nav.open{ opacity:1; visibility:visible; pointer-events:auto; transform:translateY(0); }
  .main-nav a{ width:100%; padding-block:.9rem; border-bottom:1px solid var(--line); font-size:1rem; }
  .main-nav .btn{ margin-top:1rem; }
  .nav-toggle{ display:flex; }
  .header-controls .btn-primary.desktop-only{ display:none; }
}
@media (max-width: 720px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
  .field-row{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero-stats{ gap:1.4rem; }
}
@media (max-width: 480px){
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .lang-switch button{ padding:.35rem .6rem; }
}