@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --white: #ffffff;
  --off: #fafafa;
  --bg: #09090b;
  --card: rgba(255,255,255,0.025);
  --border: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.88);
  --muted: rgba(255,255,255,0.4);
  --dim: rgba(255,255,255,0.22);
  --accent: #c9a84c;
  --accent-dim: rgba(201,168,76,0.12);
  --font: 'Inter', system-ui, sans-serif;
  --max: 1100px;
  --ease: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-size: clamp(13px, 1.1vw + 8px, 16px);
}

/* ── Canvas ── */
#bg-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
section, nav, footer, header { position: relative; z-index: 1; }

/* ── Nav ── */
nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: 64px; display: flex; align-items: center;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  background: rgba(9,9,11,0.8);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; width: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { text-decoration: none; display: flex; align-items: center; gap: 0.4rem; }
.logo img { height: 22px; flex-shrink: 0; }
footer .logo img { height: 28px; }
.logo-mark {
  font-weight: 700; font-size: 1.05rem;
  letter-spacing: 0.12em; color: var(--white);
}
.logo-sub {
  font-weight: 400; font-size: 0.65rem;
  letter-spacing: 0.08em; color: var(--muted);
  text-transform: uppercase;
}
.nav-links {
  display: flex; gap: 2.5rem; list-style: none;
}
.nav-links a {
  font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  transition: color var(--ease);
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--bg); background: var(--accent);
  padding: 0.5rem 1.2rem; border-radius: 3px;
  text-decoration: none; transition: opacity var(--ease);
}
.nav-cta:hover { opacity: 0.85; }
.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 4px;
}
.hamburger span { width: 20px; height: 1.5px; background: var(--white); }
.lang-switch {
  display: flex; gap: 0.4rem; align-items: center;
  margin-left: 1.5rem; padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}
.lang-switch a {
  font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--dim); text-decoration: none;
  transition: color var(--ease); padding: 0.2rem 0.3rem;
}
.lang-switch a:hover, .lang-switch a.active { color: var(--white); }

/* ── Layout ── */
section { padding: clamp(3rem, 6vw, 7rem) clamp(1rem, 4vw, 3rem); }
.wrap { max-width: var(--max); margin: 0 auto; width: 100%; }

/* ── Typography ── */
.label {
  font-size: clamp(0.55rem, 0.4vw + 0.4rem, 0.7rem); font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: clamp(0.8rem, 1.2vw, 1.4rem);
}
h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(1.6rem, 3.5vw + 0.5rem, 3.6rem); color: var(--white); }
h2 { font-size: clamp(1.3rem, 2vw + 0.5rem, 2.4rem); color: var(--white); }
h3 { font-size: clamp(0.85rem, 0.5vw + 0.6rem, 1.05rem); color: var(--white); }
.subtitle {
  font-size: clamp(0.8rem, 0.5vw + 0.6rem, 1rem); color: var(--muted);
  max-width: min(520px, 90vw); line-height: 1.75; margin-top: 1rem;
}

/* ── Buttons ── */
.btn {
  display: inline-block; font-family: var(--font);
  font-size: clamp(0.62rem, 0.3vw + 0.5rem, 0.75rem); font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: clamp(0.6rem, 0.8vw, 0.85rem) clamp(1.2rem, 2vw, 2rem); border-radius: 3px;
  text-decoration: none; transition: var(--ease);
  cursor: pointer; border: none;
}
.btn-gold { background: var(--accent); color: var(--bg); }
.btn-gold:hover { opacity: 0.85; }
.btn-ghost {
  background: transparent; color: var(--muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.15); color: var(--white); }

/* ── Hero ── */
.hero {
  min-height: 100svh; display: flex; align-items: center;
  padding-top: 64px;
}
.hero-content { max-width: min(600px, 85vw); }
.hero-content h1 { margin-bottom: clamp(0.8rem, 1.2vw, 1.4rem); }
.hero-content p { color: var(--muted); font-size: clamp(0.85rem, 0.5vw + 0.6rem, 1.05rem); line-height: 1.8; margin-bottom: clamp(1.5rem, 3vw, 2.8rem); }
.hero-actions { display: flex; gap: clamp(0.5rem, 1vw, 0.85rem); flex-wrap: wrap; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.5rem, 4vw, 4.5rem); margin-top: clamp(2.5rem, 5vw, 5.5rem);
  padding-top: clamp(1.5rem, 2.5vw, 3rem); border-top: 1px solid var(--border);
}
.stat-num {
  font-size: clamp(1.4rem, 2vw + 0.5rem, 2.2rem); font-weight: 600;
  letter-spacing: -0.02em; color: var(--white);
}
.stat-label {
  font-size: clamp(0.55rem, 0.3vw + 0.4rem, 0.68rem); font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--dim); margin-top: 0.25rem;
}

/* ── Grid Cards ── */
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 1px; margin-top: clamp(1.5rem, 3vw, 3.5rem); background: var(--border); border-radius: 4px; overflow: hidden; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: clamp(1rem, 1.5vw, 1.8rem); margin-top: clamp(1.5rem, 3vw, 3.5rem); }
.card {
  background: var(--bg); padding: clamp(1.5rem, 2.5vw, 2.8rem) clamp(1.2rem, 2vw, 2.2rem);
  transition: var(--ease);
}
.card-icon { font-size: clamp(1.1rem, 1.3vw, 1.5rem); margin-bottom: clamp(0.8rem, 1.2vw, 1.4rem); opacity: 0.7; }
.card h3 { margin-bottom: 0.6rem; font-size: clamp(0.8rem, 0.4vw + 0.6rem, 0.95rem); font-weight: 600; }
.card p { font-size: clamp(0.75rem, 0.4vw + 0.55rem, 0.88rem); color: var(--muted); line-height: 1.7; }

/* standalone cards */
.s-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; padding: 2.5rem;
  transition: var(--ease);
}
.s-card:hover { border-color: rgba(255,255,255,0.1); }

/* ── Cost items ── */
.cost-num {
  font-size: clamp(1.3rem, 1.5vw + 0.5rem, 2rem); font-weight: 600;
  color: var(--accent); margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

/* ── Method steps ── */
.step-num {
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.8rem;
}

/* ── Calculator ── */
.calc-wrap { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); gap: clamp(1.5rem, 3vw, 3.5rem); margin-top: clamp(1.5rem, 3vw, 3.5rem); align-items: start; }
.calc-field { margin-bottom: 2rem; }
.calc-field label {
  display: block; font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 0.6rem;
}
.calc-field input[type="range"] {
  width: 100%; height: 2px;
  -webkit-appearance: none; appearance: none;
  background: var(--border); border-radius: 1px; outline: none;
}
.calc-field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  background: var(--accent); border-radius: 50%; cursor: pointer;
  border: 2px solid var(--bg);
}
.calc-val { font-size: clamp(1.1rem, 1.2vw + 0.4rem, 1.5rem); font-weight: 600; color: var(--white); margin-top: 0.4rem; }
.calc-results {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; padding: clamp(1.5rem, 2.5vw, 2.8rem);
}
.calc-results h3 {
  font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 2rem;
}
.res-row { padding: 1.2rem 0; border-bottom: 1px solid var(--border); }
.res-row:last-of-type { border-bottom: none; }
.res-label { font-size: 0.75rem; color: var(--muted); margin-bottom: 0.15rem; }
.res-val { font-size: clamp(1.2rem, 1.3vw + 0.5rem, 1.7rem); font-weight: 600; color: var(--white); }
.res-val.gold { color: var(--accent); }

/* ── Case study cards ── */
.case-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden;
  transition: var(--ease);
}
.case-card:hover { border-color: rgba(255,255,255,0.1); }
.case-head { padding: clamp(1.2rem, 2vw, 2.2rem); }
.case-ind {
  font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.4rem;
}
.case-head h3 { font-size: 1rem; }
.case-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); }
.case-m { padding: clamp(0.8rem, 1.2vw, 1.4rem); background: var(--bg); text-align: center; }
.case-m .mv { font-size: clamp(1rem, 1vw + 0.4rem, 1.4rem); font-weight: 600; color: var(--accent); }
.case-m .ml { font-size: 0.6rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.15rem; }

/* ── CTA ── */
.cta { text-align: center; padding: clamp(3rem, 5vw, 6rem) clamp(1rem, 4vw, 3rem); }
.cta .subtitle { margin: 1rem auto clamp(1.2rem, 2vw, 2.2rem); }

/* ── Tiers ── */
.tier {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; padding: clamp(1.5rem, 2.5vw, 2.8rem);
  transition: var(--ease);
}
.tier.featured { border-color: var(--accent); }
.tier:hover { border-color: rgba(255,255,255,0.12); }
.tier-badge {
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1.2rem;
  display: inline-block;
}
.tier h3 { font-size: clamp(0.95rem, 0.5vw + 0.7rem, 1.2rem); margin-bottom: 0.6rem; }
.tier > p { font-size: 0.85rem; color: var(--muted); margin-bottom: 1.5rem; }
.tier ul { list-style: none; margin-bottom: 2rem; }
.tier ul li {
  padding: 0.5rem 0; font-size: 0.8rem; color: var(--muted);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.6rem;
}
.tier ul li::before { content: '—'; color: var(--accent); font-size: 0.7rem; }
.tier .btn { display: block; text-align: center; width: 100%; }

/* ── Form ── */
.form-card {
  max-width: min(640px, 95vw); margin: clamp(-1rem, -1.5vw, -2.5rem) auto 0;
  background: rgba(9,9,11,0.92); backdrop-filter: blur(20px);
  border: 1px solid var(--border); border-radius: 4px;
  padding: clamp(1.2rem, 2.5vw, 2.8rem); position: relative; z-index: 2;
}
.steps { display: flex; justify-content: space-between; margin-bottom: 2.5rem; position: relative; }
.steps::before {
  content: ''; position: absolute; top: 50%;
  left: 0; right: 0; height: 1px;
  background: var(--border); transform: translateY(-50%);
}
.dot {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700; color: var(--dim);
  position: relative; z-index: 1; transition: var(--ease);
}
.dot.active { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.dot.completed { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.form-step { display: none; }
.form-step.active { display: block; }
.form-step h3 { margin-bottom: 0.4rem; }
.form-step > p { color: var(--muted); margin-bottom: 1.5rem; font-size: 0.85rem; }
.fg { margin-bottom: 1.2rem; }
.fg label {
  display: block; font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 0.4rem;
}
.fg input, .fg select, .fg textarea {
  width: 100%; padding: 0.7rem 0.8rem;
  border: 1px solid var(--border); border-radius: 3px;
  font-family: var(--font); font-size: 0.85rem;
  color: var(--white); background: rgba(255,255,255,0.03);
  transition: border-color var(--ease);
}
.fg input:focus, .fg select:focus, .fg textarea:focus { outline: none; border-color: var(--accent); }
.fg select option { background: #111; color: #fff; }
.fg textarea { resize: vertical; min-height: 80px; }
.fg-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.form-nav {
  display: flex; justify-content: space-between;
  margin-top: 1.5rem; padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.btn-back {
  background: none; border: 1px solid var(--border);
  padding: 0.6rem 1.4rem; border-radius: 3px;
  font-family: var(--font); font-size: 0.72rem; font-weight: 500;
  cursor: pointer; color: var(--muted); transition: var(--ease);
}
.btn-back:hover { border-color: rgba(255,255,255,0.15); color: var(--white); }
.btn-next {
  background: var(--accent); color: var(--bg); border: none;
  padding: 0.6rem 1.6rem; border-radius: 3px;
  font-family: var(--font); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
  cursor: pointer; transition: opacity var(--ease);
}
.btn-next:hover { opacity: 0.85; }

/* ── Case study page ── */
.cs-block {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden; margin-bottom: 2rem;
}
.cs-title { padding: clamp(1.2rem, 2vw, 2.2rem); border-bottom: 1px solid var(--border); }
.cs-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
.cs-col { padding: clamp(1.2rem, 2vw, 2.2rem); }
.cs-col:first-child { border-right: 1px solid var(--border); }
.cs-tag {
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 0.8rem; display: inline-block;
}
.cs-tag.before { color: #e05555; }
.cs-tag.after { color: #4caf50; }
.cs-col h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.6rem; }
.cs-col ul { list-style: none; }
.cs-col li { padding: 0.3rem 0; font-size: 0.8rem; color: var(--muted); }
.cs-row {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--border);
}
.cs-cell { padding: clamp(0.8rem, 1.5vw, 1.8rem); background: var(--bg); text-align: center; }
.cs-cell .cv { font-size: clamp(1.1rem, 1.2vw + 0.4rem, 1.6rem); font-weight: 600; color: var(--accent); }
.cs-cell .cl { font-size: 0.6rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.15rem; }

/* ── Contact ── */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: clamp(1.5rem, 3vw, 3.5rem); margin-top: clamp(1.5rem, 3vw, 3.5rem); }
.c-detail { padding: 0.8rem 0; border-bottom: 1px solid var(--border); }
.c-detail span { font-size: 0.6rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 0.15rem; }
.c-detail p { color: var(--muted); font-size: 0.85rem; }
.c-form {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; padding: clamp(1.5rem, 2.5vw, 2.8rem);
}
.c-form h3 { margin-bottom: 1.5rem; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem clamp(1.5rem,4vw,3rem) 1.5rem;
}
.foot-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr)); gap: clamp(1.2rem, 2vw, 2.5rem);
}
.foot-brand p { font-size: 0.8rem; color: var(--muted); margin-top: 0.8rem; line-height: 1.7; }
.foot-col h4 {
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--dim); margin-bottom: 0.8rem;
}
.foot-col a {
  display: block; font-size: 0.8rem; color: var(--muted);
  text-decoration: none; padding: 0.2rem 0;
  transition: color var(--ease);
}
.foot-col a:hover { color: var(--white); }
.foot-bottom {
  max-width: var(--max); margin: 2rem auto 0;
  padding-top: 1.5rem; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between;
  font-size: 0.7rem; color: var(--dim);
}

/* ── Page hero ── */
.page-hero { padding-top: clamp(6rem, 10vw, 10rem); text-align: center; }
.page-hero .subtitle { margin: 1rem auto; }

/* ── Compact case cards ── */
.gain { color: #4caf50 !important; }
.loss { color: #e05555 !important; }
.cs-compact { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); gap: clamp(1rem, 1.5vw, 1.5rem); }
.csc {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 4px; padding: clamp(1.2rem, 2vw, 2rem);
  transition: var(--ease);
}
.csc:hover { border-color: rgba(255,255,255,0.1); transform: translateY(-2px); }
.csc-ind { font-size: 0.55rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.3rem; }
.csc h3 { font-size: clamp(0.85rem, 0.5vw + 0.6rem, 0.95rem); margin-bottom: 0.2rem; }
.csc-meta { font-size: 0.7rem; color: var(--dim); margin-bottom: 1rem; }
.csc-row { display: flex; justify-content: space-between; padding: 0.4rem 0; border-bottom: 1px solid var(--border); font-size: 0.75rem; }
.csc-row:last-child { border-bottom: none; }
.csc-label { color: var(--muted); }
.csc-val { font-weight: 600; color: var(--white); }
.csc-results { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border-radius: 3px; overflow: hidden; margin-top: 1rem; }
.csc-r { background: var(--bg); padding: 0.8rem; text-align: center; }
.csc-r .rv { font-size: clamp(1rem, 0.8vw + 0.5rem, 1.2rem); font-weight: 600; }
.csc-r .rl { font-size: 0.55rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.1rem; }

/* ── Card hover effects ── */
.card:hover { background: rgba(255,255,255,0.02); }
.case-card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.tier:hover { transform: translateY(-2px); }
.cs-block:hover { border-color: rgba(255,255,255,0.1); }

/* ── Page fade-in ── */
body { animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Back to top ── */
.btt {
  position: fixed; bottom: clamp(1rem, 2vw, 1.5rem); right: clamp(1rem, 2vw, 1.5rem);
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; text-decoration: none;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 90; border: none; cursor: pointer;
}
.btt.show { opacity: 1; pointer-events: auto; }
.btt:hover { transform: translateY(-2px); }

/* ── Cookie banner ── */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(9,9,11,0.95); backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: clamp(1rem, 2vw, 1.5rem) clamp(1.5rem, 4vw, 3rem);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; z-index: 99;
  transform: translateY(100%); transition: transform 0.4s ease;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner p {
  font-size: clamp(0.7rem, 0.4vw + 0.5rem, 0.8rem); color: var(--muted);
  flex: 1; line-height: 1.6;
}
.cookie-banner p a { color: var(--accent); text-decoration: none; }
.cookie-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }
.cookie-actions button {
  font-family: var(--font); font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.5rem 1rem; border-radius: 3px; cursor: pointer;
  transition: var(--ease); border: none;
}
.cookie-accept { background: var(--accent); color: var(--bg); }
.cookie-decline { background: transparent; color: var(--muted); border: 1px solid var(--border) !important; }
.cookie-decline:hover { border-color: rgba(255,255,255,0.15) !important; color: var(--white); }

/* ── Reveal ── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
/* Only structural layout shifts that can't be handled by fluid CSS */

@media (max-width: 720px) {
  /* Nav: hamburger replaces links */
  .nav-links { display: none; }
  .lang-switch { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 1rem;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(9,9,11,0.95); padding: 1.5rem;
    border-bottom: 1px solid var(--border);
  }

  /* Hero: stack actions vertically */
  .hero { min-height: auto; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; }

  /* Forms: single column */
  .fg-row { grid-template-columns: 1fr; }
  .fg input, .fg select, .fg textarea { font-size: 16px; } /* prevent iOS zoom */

  /* Case study cols: stack */
  .cs-col:first-child { border-right: none; border-bottom: 1px solid var(--border); }

  /* Footer bottom: stack */
  .foot-bottom { flex-direction: column; gap: 0.5rem; }
}