/* ── Variables ─────────────────────────────────────────────── */
:root {
  --ink: #10251f;
  --muted: #52645e;
  --cream: #f6f3e9;
  --paper: #fffdf7;
  --green: #174f3f;
  --green-2: #25745b;
  --green-3: #1a6350;
  --lime: #d8f065;
  --lime-2: #c8e050;
  --dark: #0b1c17;
  --dark-2: #0f2920;
  --line: rgba(16,37,31,.13);
  --line-light: rgba(255,255,255,.12);
  --shadow: 0 24px 70px rgba(17,61,48,.12);
  --shadow-lg: 0 40px 100px rgba(17,61,48,.18);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
ul { list-style: none; }

/* ── Layout ────────────────────────────────────────────────── */
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.container-sm { width: min(780px, calc(100% - 40px)); margin-inline: auto; }

/* ── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: fixed; top: 10px; left: 10px; transform: translateY(-160%);
  background: var(--ink); color: white; padding: 10px 16px; border-radius: var(--radius-xs);
  z-index: 200; font-weight: 700; text-decoration: none;
}
.skip-link:focus { transform: none; }

/* ── Typography ────────────────────────────────────────────── */
h1,h2,h3,h4 { line-height: 1.08; letter-spacing: -.04em; }
h1 { font-size: clamp(2.6rem, 6.5vw, 5.4rem); font-weight: 900; }
h2 { font-size: clamp(1.9rem, 4vw, 3.6rem); font-weight: 850; }
h3 { font-size: clamp(1.1rem, 1.6vw, 1.28rem); font-weight: 800; }
p { max-width: 68ch; }
.lede { font-size: clamp(1rem, 1.4vw, 1.2rem); color: var(--muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 18px;
  color: var(--green); font-size: .73rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--green-2); flex-shrink: 0; }
.eyebrow.light { color: var(--lime); }
.eyebrow.light::before { background: var(--lime); }

/* ── Buttons ───────────────────────────────────────────────── */
.button {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px;
  min-height: 50px; padding: 0 24px; border: 2px solid var(--green);
  border-radius: 999px; background: var(--green); color: white; text-decoration: none;
  font-weight: 800; font-size: .92rem; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
  white-space: nowrap; cursor: pointer;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(23,79,63,.22); }
.button:active { transform: translateY(0); }
.button.secondary { background: transparent; color: var(--green); }
.button.secondary:hover { background: rgba(23,79,63,.06); }
.button.lime { background: var(--lime); border-color: var(--lime); color: var(--ink); }
.button.lime:hover { background: var(--lime-2); border-color: var(--lime-2); box-shadow: 0 12px 28px rgba(216,240,101,.4); }
.button.outline-white { background: transparent; border-color: rgba(255,255,255,.3); color: white; }
.button.outline-white:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.55); }
.text-link {
  display: inline-flex; align-items: center; gap: 6px; color: var(--green-2);
  text-decoration: none; font-weight: 800; font-size: .9rem; transition: gap .2s;
}
.text-link:hover { gap: 10px; }

/* ── Header / Nav ──────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,253,247,.93); backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid transparent; transition: border-color .25s;
}
.site-header.scrolled { border-color: var(--line); }
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; font-size: 1.22rem; font-weight: 900; letter-spacing: -.05em; flex-shrink: 0;
}
.brand-mark {
  width: 36px; height: 36px; display: grid; place-items: center;
  background: var(--green); color: var(--lime); border-radius: 10px; font-size: 1.1rem; font-weight: 900;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { text-decoration: none; font-size: .89rem; font-weight: 700; transition: color .2s; }
.nav-links a:hover { color: var(--green-2); }
.menu-button {
  display: none; border: 0; background: transparent; padding: 8px;
  cursor: pointer; border-radius: var(--radius-xs);
}
.menu-button span { display: block; width: 22px; height: 2px; margin: 5px 0; background: var(--ink); transition: transform .3s, opacity .3s; }
.menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: 80px 0 88px;
  background: radial-gradient(ellipse at 88% 8%, rgba(216,240,101,.55) 0%, transparent 38%),
              radial-gradient(ellipse at 5% 95%, rgba(23,79,63,.09) 0%, transparent 40%),
              var(--cream);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .95fr; align-items: center; gap: 56px; }
.hero h1 { margin-bottom: 20px; }
.hero h1 span { color: var(--green-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-note { margin-top: 18px; color: var(--muted); font-size: .86rem; }
.hero-note strong { color: var(--green); }

/* Hero Visual Card */
.hero-visual {
  background: var(--green); border-radius: 28px; padding: 30px;
  color: white; box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.hero-visual::before {
  content: ""; position: absolute; width: 260px; height: 260px;
  right: -70px; bottom: -90px; border: 55px solid rgba(216,240,101,.14);
  border-radius: 50%; pointer-events: none;
}
.visual-label { color: var(--lime); font-size: .7rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 18px; }
.visual-services { display: grid; gap: 9px; position: relative; z-index: 2; }
.vs-item {
  display: flex; align-items: center; gap: 12px; padding: 13px 15px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12);
  border-radius: 12px;
}
.vs-icon { font-size: 1.25rem; flex-shrink: 0; }
.vs-text strong { display: block; font-size: .86rem; font-weight: 800; }
.vs-text span { color: rgba(255,255,255,.58); font-size: .76rem; }
.vs-badge { margin-left: auto; background: var(--lime); color: var(--ink); font-size: .68rem; font-weight: 850; padding: 3px 9px; border-radius: 999px; flex-shrink: 0; }

/* ── Stats strip ───────────────────────────────────────────── */
.stats-strip { background: var(--green); color: white; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 26px 20px; text-align: center; border-right: 1px solid rgba(255,255,255,.1); }
.stat-item:last-child { border-right: 0; }
.stat-number { font-size: clamp(1.7rem, 3vw, 2.5rem); font-weight: 900; letter-spacing: -.05em; color: var(--lime); line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: .78rem; color: rgba(255,255,255,.65); font-weight: 600; }

/* ── Trust strip ───────────────────────────────────────────── */
.trust-strip { border-block: 1px solid var(--line); background: white; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item {
  padding: 20px 14px; border-right: 1px solid var(--line);
  text-align: center; font-size: .8rem; font-weight: 800;
  display: flex; flex-direction: column; align-items: center; gap: 5px;
}
.trust-item:first-child { border-left: 1px solid var(--line); }
.trust-icon { font-size: 1.3rem; }

/* ── Sections ──────────────────────────────────────────────── */
section { padding: 96px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 52px; flex-wrap: wrap; }
.section-head h2 { max-width: 660px; margin-bottom: 0; }
.section-head p { max-width: 400px; color: var(--muted); flex-shrink: 0; }
.section-action { text-align: center; margin-top: 40px; }
.bg-cream { background: var(--cream); }
.bg-dark { background: var(--dark); color: white; }
.bg-dark .eyebrow { color: var(--lime); }
.bg-dark .eyebrow::before { background: var(--lime); }
.bg-dark .lede, .bg-dark p { color: rgba(255,255,255,.62); }
.bg-dark h2 { color: white; }
.bg-dark h3 { color: white; }

/* ── Service Cards (main 4) ────────────────────────────────── */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  padding: 28px; border: 1px solid var(--line); border-radius: var(--radius);
  background: white; transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--green-2); box-shadow: var(--shadow); }
.card-icon {
  width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px;
  background: rgba(23,79,63,.08); font-size: 1.5rem; margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .9rem; margin-bottom: 18px; max-width: none; }

/* ── AI Services Grid ──────────────────────────────────────── */
.ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ai-card {
  padding: 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: white; display: flex; flex-direction: column;
  transition: transform .25s, border-color .25s, box-shadow .25s; position: relative;
}
.ai-card:hover { transform: translateY(-4px); border-color: var(--green-2); box-shadow: var(--shadow); }
.ai-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.ai-card-icon { font-size: 1.8rem; flex-shrink: 0; }
.service-tag {
  font-size: .66rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px; flex-shrink: 0;
}
.tag-hot { background: #fff0eb; color: #c04b1a; }
.tag-popular { background: #eff8f3; color: var(--green-2); }
.tag-starter { background: #f0f4ff; color: #3b5bdb; }
.tag-team { background: #fdf4ff; color: #7c3aed; }
.ai-card h3 { margin-bottom: 6px; font-size: 1.05rem; }
.ai-card > p { color: var(--muted); font-size: .87rem; margin-bottom: 0; flex-grow: 1; max-width: none; }
.ai-card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.ai-price { font-size: .98rem; font-weight: 900; color: var(--green); }
.ai-delivery { font-size: .76rem; color: var(--muted); }

/* ── AI Services category heading ──────────────────────────── */
.ai-category { margin-top: 64px; margin-bottom: 28px; }
.ai-category h3 { font-size: 1.3rem; color: white; margin-bottom: 6px; }
.ai-category p { color: rgba(255,255,255,.58); font-size: .88rem; margin: 0; max-width: none; }
.ai-card-dark {
  background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1);
}
.ai-card-dark:hover { border-color: var(--lime); }
.ai-card-dark h3 { color: white; }
.ai-card-dark > p { color: rgba(255,255,255,.58); }
.ai-card-dark .ai-card-footer { border-top-color: rgba(255,255,255,.1); }
.ai-card-dark .ai-price { color: var(--lime); }
.ai-card-dark .ai-delivery { color: rgba(255,255,255,.4); }

/* ── "Why Us" comparison ───────────────────────────────────── */
.comparison-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.comparison-grid {
  display: grid; grid-template-columns: 1.4fr 1.3fr 1.3fr 1.3fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  min-width: 560px;
}
.cmp-col { display: flex; flex-direction: column; }
.cmp-head {
  padding: 22px 18px; text-align: center; font-weight: 850; font-size: .88rem;
  border-bottom: 1px solid var(--line); background: var(--cream);
}
.cmp-col:first-child .cmp-head { background: white; text-align: left; }
.cmp-col.featured .cmp-head { background: var(--green); color: white; }
.cmp-badge { display: inline-block; background: var(--lime); color: var(--ink); font-size: .66rem; padding: 3px 9px; border-radius: 999px; margin-top: 5px; font-weight: 850; }
.cmp-row {
  padding: 13px 18px; border-bottom: 1px solid var(--line); font-size: .85rem;
  background: white; display: flex; align-items: center; justify-content: center; gap: 6px;
}
.cmp-col:first-child .cmp-row { justify-content: flex-start; font-weight: 700; color: var(--ink); }
.cmp-row:last-child { border-bottom: 0; }
.cmp-col.featured .cmp-row { background: rgba(23,79,63,.04); }
.cmp-yes { color: var(--green-2); font-size: 1.1rem; font-weight: 900; }
.cmp-no { color: #c04b1a; font-size: 1.1rem; }
.cmp-maybe { color: var(--muted); font-size: .82rem; }

/* ── Process steps ─────────────────────────────────────────── */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process-grid::before {
  content: ""; position: absolute; top: 30px; left: 12%; right: 12%;
  height: 2px; background: linear-gradient(90deg, var(--lime), var(--green-2));
  z-index: 0;
}
.step-card { padding: 0 18px 28px; position: relative; z-index: 1; }
.step-num {
  width: 60px; height: 60px; display: grid; place-items: center; border-radius: 50%;
  background: var(--green); color: var(--lime); font-size: 1.2rem; font-weight: 900;
  margin-bottom: 20px; border: 4px solid white;
}
.bg-cream .step-num { border-color: var(--cream); }
.step-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.step-card p { color: var(--muted); font-size: .86rem; max-width: none; }

/* ── Pricing ───────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: start; }
.price-card {
  padding: 28px; border: 1px solid var(--line); border-radius: var(--radius);
  background: white; position: relative;
}
.price-card.featured {
  border-color: var(--green); box-shadow: 0 0 0 1px var(--green), var(--shadow);
  background: var(--green); color: white;
}
.price-card.featured .lede, .price-card.featured .price-desc { color: rgba(255,255,255,.7); }
.price-card.featured h3 { color: white; }
.price-tag { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--lime); color: var(--ink); font-size: .7rem; font-weight: 850; padding: 4px 14px; border-radius: 999px; white-space: nowrap; }
.price-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.price-amount { font-size: 2.3rem; font-weight: 900; letter-spacing: -.05em; margin: 12px 0 4px; line-height: 1; }
.price-amount small { font-size: .85rem; font-weight: 600; opacity: .65; }
.price-desc { font-size: .83rem; color: var(--muted); margin-bottom: 20px; max-width: none; }
.feature-list { display: flex; flex-direction: column; gap: 9px; margin-bottom: 22px; }
.feature-item { display: flex; align-items: flex-start; gap: 8px; font-size: .84rem; max-width: none; }
.feature-item::before { content: "✓"; color: var(--green-2); font-weight: 900; flex-shrink: 0; margin-top: 1px; }
.price-card.featured .feature-item::before { color: var(--lime); }
.price-card.featured .feature-item { color: rgba(255,255,255,.85); }

/* ── FAQ ───────────────────────────────────────────────────── */
.faq-list { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
details { border-bottom: 1px solid var(--line); }
details:last-child { border-bottom: 0; }
summary {
  padding: 20px 26px; font-weight: 800; cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-size: .95rem; transition: background .2s; user-select: none;
}
summary::-webkit-details-marker { display: none; }
summary:hover { background: rgba(23,79,63,.04); }
summary::after { content: "+"; font-size: 1.3rem; font-weight: 400; color: var(--green-2); flex-shrink: 0; transition: transform .3s; }
details[open] summary::after { transform: rotate(45deg); }
details[open] summary { background: rgba(23,79,63,.04); color: var(--green-2); }
details div { padding: 0 26px 20px; color: var(--muted); font-size: .9rem; line-height: 1.7; }

/* ── CTA section ───────────────────────────────────────────── */
.cta-section { background: var(--dark); color: white; padding: 100px 0; }
.cta-box { text-align: center; }
.cta-box h2 { color: white; margin-bottom: 14px; }
.cta-box .lede { margin-bottom: 36px; margin-inline: auto; color: rgba(255,255,255,.62); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ── Case study cards ──────────────────────────────────────── */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: white; transition: transform .25s, box-shadow .25s; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.case-img { width: 100%; aspect-ratio: 16/10; background: var(--cream); display: flex; align-items: center; justify-content: center; font-size: 3rem; }
.case-card-content { padding: 22px; }
.demo-label { display: inline-block; font-size: .68rem; font-weight: 800; color: var(--muted); background: var(--cream); padding: 3px 10px; border-radius: 999px; margin-bottom: 8px; }
.case-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.case-card p { font-size: .86rem; color: var(--muted); max-width: none; }

/* ── Security ──────────────────────────────────────────────── */
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.security-panel { background: var(--cream); border-radius: var(--radius); padding: 32px; }
.check-list { display: flex; flex-direction: column; gap: 16px; }
.check-list li { display: flex; align-items: flex-start; gap: 14px; }
.check-list li::before { content: "✓"; width: 26px; height: 26px; background: var(--lime); color: var(--ink); border-radius: 50%; display: grid; place-items: center; font-size: .78rem; font-weight: 900; flex-shrink: 0; margin-top: 2px; }
.check-list li strong { display: block; font-size: .9rem; }
.check-list li span { color: var(--muted); font-size: .84rem; }

/* ── Promise / why-us ──────────────────────────────────────── */
.promise-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
.promise { display: flex; gap: 14px; padding: 20px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-sm); }
.promise-num { font-size: 1.4rem; font-weight: 900; color: var(--lime); opacity: .55; flex-shrink: 0; line-height: 1; }
.promise strong { display: block; margin-bottom: 4px; font-size: .9rem; color: white; }
.promise p { color: rgba(255,255,255,.55); font-size: .82rem; max-width: none; margin: 0; }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.why-card { padding: 24px; border-radius: var(--radius); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); }
.why-icon { font-size: 2rem; margin-bottom: 12px; }
.why-card h3 { font-size: .98rem; color: white; margin-bottom: 6px; }
.why-card p { color: rgba(255,255,255,.55); font-size: .84rem; margin: 0; max-width: none; }

/* ── Content / about ───────────────────────────────────────── */
.content-grid { display: grid; grid-template-columns: 260px 1fr; gap: 60px; align-items: start; }
.prose h2 { font-size: 1.45rem; margin-top: 32px; margin-bottom: 10px; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--muted); margin-bottom: 14px; font-size: .92rem; }
.prose ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.prose ul li { display: flex; align-items: flex-start; gap: 8px; color: var(--muted); font-size: .9rem; }
.prose ul li::before { content: "→"; color: var(--green-2); font-weight: 700; flex-shrink: 0; }

/* ── Page hero ─────────────────────────────────────────────── */
.page-hero { background: var(--cream); padding: 68px 0; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2rem, 5vw, 4rem); margin-bottom: 16px; }

/* ── Contact form ──────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.form-card { background: var(--cream); border-radius: var(--radius); padding: 30px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: .84rem; font-weight: 800; }
.field input, .field textarea, .field select {
  padding: 11px 15px; border: 1.5px solid rgba(16,37,31,.18);
  border-radius: var(--radius-sm); background: white; font-size: .9rem; transition: border-color .2s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: 0; border-color: var(--green-2); }
.field textarea { resize: vertical; }
.form-note { font-size: .77rem; color: var(--muted); margin-top: 12px; line-height: 1.5; }
[data-form-status] { font-size: .88rem; font-weight: 700; color: var(--green); margin-top: 8px; }

/* ── Footer ────────────────────────────────────────────────── */
footer { background: var(--dark); color: white; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer-brand .brand { color: white; }
.footer-copy { color: rgba(255,255,255,.45); font-size: .84rem; margin-top: 12px; max-width: 260px; line-height: 1.6; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links strong { display: block; font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.38); margin-bottom: 4px; }
.footer-links a { text-decoration: none; color: rgba(255,255,255,.65); font-size: .86rem; transition: color .2s; }
.footer-links a:hover { color: var(--lime); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-top: 22px; border-top: 1px solid rgba(255,255,255,.07);
  color: rgba(255,255,255,.3); font-size: .8rem;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .process-grid::before { display: none; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid { gap: 40px; }
}

@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero { padding: 56px 0 64px; }
  .cta-section { padding: 72px 0; }
  .nav-links {
    position: fixed; top: 74px; left: 0; right: 0; bottom: 0;
    background: var(--paper); flex-direction: column; align-items: flex-start;
    padding: 28px 24px; gap: 0; overflow-y: auto; z-index: 40;
    transform: translateX(110%); transition: transform .35s cubic-bezier(.4,0,.2,1);
    border-top: 1px solid var(--line);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.05rem; padding: 13px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links .button { margin-top: 16px; width: 100%; }
  .menu-button { display: flex; flex-direction: column; justify-content: center; }
  .cards-4 { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .promise-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item:first-child { border-left: 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 6px; text-align: center; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .button { width: 100%; max-width: 320px; }
}

@media (max-width: 480px) {
  .container { width: calc(100% - 30px); }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Utility ───────────────────────────────────────────────── */
.mt-sm { margin-top: 16px; }
.mt-md { margin-top: 32px; }
.mt-lg { margin-top: 64px; }
.text-center { text-align: center; }
.text-center p { margin-inline: auto; }
.green { color: var(--green-2); }
.lime-text { color: var(--lime); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }