:root {
  --ink: #0f1114;
  --ink-soft: #3d3d3a;
  --muted: #6b6f76;
  --border: #e2e4e8;
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --blue-deep: #1B4FB5;
  --blue-mid: #2d6ae0;
  --blue-light: #5B8CE0;
  --blue-wash: #edf2fc;
  --blue-glow: #dbe6fa;
  --accent: #0ea5e9;
  --green: #10b981;
  --section-pad: clamp(64px, 8vw, 112px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* --- HEADER --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 24px; max-width: 1140px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.35rem; color: var(--blue-deep); letter-spacing: -0.02em; }
.brand svg { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 0.9rem; font-weight: 500; color: var(--ink-soft); }
.nav-links a:hover, .nav-links a.active { color: var(--blue-deep); }
.nav-cta { background: var(--blue-deep); color: #fff !important; padding: 10px 20px; border-radius: 6px; font-weight: 600; transition: background 0.2s; }
.nav-cta:hover { background: var(--blue-mid); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: 0.2s; }

/* --- BUTTONS --- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.92rem; padding: 13px 24px; border-radius: 6px; transition: all 0.2s; border: 1px solid transparent; cursor: pointer; }
.btn--primary { background: var(--blue-deep); color: #fff; }
.btn--primary:hover { background: var(--blue-mid); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--blue-deep); border-color: var(--blue-deep); }
.btn--ghost:hover { background: var(--blue-wash); }
.btn--white { background: #fff; color: var(--blue-deep); }
.btn--white:hover { background: var(--blue-wash); }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* --- EYEBROW --- */
.eyebrow { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-light); display: inline-block; margin-bottom: 10px; }

/* --- SECTIONS --- */
.section { padding: var(--section-pad) 0; }
.section--tight { padding: 40px 0; }
.bg-gray { background: var(--bg-alt); }
.bg-blue { background: var(--blue-deep); color: #fff; }
.bg-blue .eyebrow { color: rgba(255,255,255,0.6); }
.bg-blue .lead { color: rgba(255,255,255,0.82); }
.bg-blue p { color: rgba(255,255,255,0.78); }
.center { text-align: center; }
.sec-head { margin-bottom: 44px; }
.sec-head p { color: var(--muted); max-width: 560px; margin: 10px auto 0; font-size: 1.05rem; }

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.08; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: 1.15rem; font-weight: 700; line-height: 1.3; margin-bottom: 8px; }
.lead { font-size: 1.1rem; color: var(--muted); line-height: 1.65; max-width: 540px; }
.ink { color: var(--blue-deep); }

/* --- HERO --- */
.hero { padding: clamp(80px, 10vw, 120px) 0 var(--section-pad); }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.hero-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.hero-tags span { font-size: 0.78rem; font-weight: 600; color: var(--blue-deep); background: var(--blue-wash); padding: 6px 14px; border-radius: 100px; }
.hero-visual { background: var(--bg-alt); border-radius: 16px; padding: 32px; border: 1px solid var(--border); }
.hero-visual h3 { font-size: 0.95rem; color: var(--muted); font-weight: 600; margin-bottom: 20px; }
.hero-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hero-stat { background: #fff; border-radius: 10px; padding: 20px; border: 1px solid var(--border); }
.hero-stat .num { font-size: 1.6rem; font-weight: 800; color: var(--blue-deep); letter-spacing: -0.02em; }
.hero-stat .lbl { font-size: 0.8rem; color: var(--muted); margin-top: 4px; line-height: 1.4; }

/* --- PARTNERS --- */
.partners { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.partner { text-align: center; }
.partner .name { font-size: 1.15rem; font-weight: 700; color: var(--ink); }
.partner .since { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }

/* --- SPLIT --- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.panel { background: #fff; border-radius: 14px; padding: 32px; border: 1px solid var(--border); }

/* --- LISTS --- */
.problem-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.problem-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 0.95rem; color: var(--ink-soft); }
.problem-list .x { color: #ef4444; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.check-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 0.95rem; color: rgba(255,255,255,0.9); }
.check-list .c { color: var(--green); font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }

/* --- GRID --- */
.grid { display: grid; gap: 20px; }
.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: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 28px; transition: border-color 0.2s, transform 0.2s; }
.card:hover { border-color: var(--blue-light); transform: translateY(-2px); }
.card .ico { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: var(--blue-wash); border-radius: 10px; margin-bottom: 16px; color: var(--blue-deep); }
.card .ico svg { width: 22px; height: 22px; }

/* --- STATS --- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; }
.stat .num { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; color: #fff; }
.stat .lbl { font-size: 0.85rem; color: rgba(255,255,255,0.72); margin-top: 6px; line-height: 1.4; }

/* --- CASE STUDIES --- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 28px; position: relative; overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}
.case-card:hover { border-color: var(--blue-light); transform: translateY(-2px); }
.case-card .case-tag {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--blue-deep); background: var(--blue-wash); padding: 4px 10px; border-radius: 100px;
  display: inline-block; margin-bottom: 14px;
}
.case-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.case-card p { font-size: 0.88rem; color: var(--muted); margin-bottom: 16px; line-height: 1.55; }
.case-metric { display: flex; gap: 20px; border-top: 1px solid var(--border); padding-top: 14px; margin-top: auto; }
.case-metric .cm { text-align: left; }
.case-metric .cm .val { font-size: 1.25rem; font-weight: 800; color: var(--blue-deep); }
.case-metric .cm .lab { font-size: 0.72rem; color: var(--muted); margin-top: 2px; }

/* --- WEBSITE DESIGN SECTION --- */
.design-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.design-card { background: var(--bg-alt); border-radius: 14px; padding: 28px; border: 1px solid var(--border); }
.design-card .d-ico { font-size: 1.6rem; margin-bottom: 12px; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--blue-wash); border-radius: 10px; color: var(--blue-deep); }
.design-card .d-ico svg { width: 24px; height: 24px; }

/* --- CTA BAND --- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 520px; margin: 0 auto 12px; }

/* --- FOOTER --- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.78); padding: 60px 0 32px; }
.site-footer .brand { color: #fff; margin-bottom: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.5); margin-bottom: 4px; }
.footer-col a { font-size: 0.9rem; color: rgba(255,255,255,0.72); transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; font-size: 0.82rem; color: rgba(255,255,255,0.4); }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 36px; }
  .grid-3, .grid-4, .case-grid, .design-features { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: #fff; flex-direction: column; justify-content: center; align-items: center; gap: 28px; font-size: 1.2rem; z-index: 200; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; z-index: 201; }
  .grid-2, .grid-3, .grid-4, .case-grid, .design-features { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero-stat-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .btn-row { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}