/* ============================================================
   VizionEdge — light, premium theme
   Palette drawn from the logo: deep navy → brand blue → cyan
   ============================================================ */

:root {
  --ink:        #0b1f3a;   /* deep navy (logo dark)     */
  --ink-soft:   #33475f;   /* body text                 */
  --muted:      #64748b;   /* secondary / labels        */
  --line:       #e4ecf4;   /* hairline borders          */
  --line-soft:  #eef3f9;
  --bg:         #ffffff;
  --bg-tint:    #f5f9fd;   /* alternating section       */
  --bg-tint-2:  #eef5fc;
  --brand:      #1573d4;   /* primary blue              */
  --brand-dk:   #0f5bad;
  --cyan:       #16b6d8;   /* logo cyan accent          */
  --grad:       linear-gradient(100deg, #0f5bad 0%, #1573d4 45%, #16b6d8 100%);
  --grad-soft:  linear-gradient(135deg, #eef5fc 0%, #e6f5fb 100%);
  --shadow-sm:  0 1px 2px rgba(11, 31, 58, .04), 0 2px 8px rgba(11, 31, 58, .05);
  --shadow-md:  0 6px 22px rgba(11, 31, 58, .08);
  --shadow-lg:  0 18px 48px rgba(11, 31, 58, .12);
  --radius:     16px;
  --radius-sm:  10px;
  --maxw:       1120px;
  --font:       "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display:    "Sora", var(--font);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-soft);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dk); }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 800px; }
.center { text-align: center; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--display); color: var(--ink); line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin-bottom: 14px; }
h3 { font-size: 1.18rem; letter-spacing: -0.01em; }

.kicker {
  font-family: var(--font);
  text-transform: uppercase; letter-spacing: .14em; font-size: .74rem; font-weight: 700;
  color: var(--brand); margin: 0 0 10px;
}
.section-intro { font-size: 1.06rem; color: var(--ink-soft); max-width: 940px; margin: 0 0 8px; }
.section-intro.center { margin-left: auto; margin-right: auto; }
.section-intro em { color: var(--ink); font-style: normal; font-weight: 600; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 1.12rem; letter-spacing: -.01em; }
.brand img { width: 30px; height: auto; }
.brand strong { color: var(--brand); font-weight: 700; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: var(--ink-soft); font-weight: 500; font-size: .95rem; }
.site-nav a:hover { color: var(--ink); }
.nav-cta { padding: 9px 18px; background: var(--ink); color: #fff !important; border-radius: 999px; font-weight: 600; }
.nav-cta:hover { background: var(--brand-dk); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.menu-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: .98rem; padding: 14px 26px; border-radius: 999px; transition: transform .15s ease, box-shadow .2s ease, background .2s ease; white-space: nowrap; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(21,115,212,.28); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(21,115,212,.36); }
.btn-ghost { color: var(--ink); border: 1px solid var(--line); background: #fff; }
.btn-ghost:hover { color: var(--ink); border-color: var(--brand); box-shadow: var(--shadow-sm); }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.cta-row.center { justify-content: center; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 76px 0 64px; overflow: hidden; background: radial-gradient(1200px 500px at 75% -10%, var(--bg-tint-2) 0%, rgba(238,245,252,0) 60%), var(--bg); }
.hero-inner { max-width: none; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: .85rem; color: var(--brand-dk); background: var(--bg-tint-2); border: 1px solid var(--line); padding: 6px 14px; border-radius: 999px; margin: 0 0 22px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(22,182,216,.18); }
.hero-title { font-size: clamp(2.3rem, 5.4vw, 3.7rem); margin-bottom: 20px; }
.hero-line { display: block; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 1.18rem; color: var(--ink-soft); max-width: 940px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 46px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px 18px; box-shadow: var(--shadow-sm); }
.stat-num { display: block; font-family: var(--display); font-weight: 800; font-size: 1.7rem; color: var(--ink); letter-spacing: -.02em; }
.stat-label { display: block; font-size: .82rem; color: var(--muted); margin-top: 4px; }
.hero-foot { font-size: .9rem; color: var(--muted); margin-top: 18px; }

/* ---------- Trust strip ---------- */
.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-tint); padding: 32px 0; text-align: center; }
.trust-label { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 16px; font-weight: 600; }
.trust-logos { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; margin: 0 0 12px; padding: 0; }
.trust-logos li { font-family: var(--display); font-weight: 700; font-size: 1.25rem; color: var(--ink); opacity: .78; letter-spacing: -.01em; }
.trust-sub { font-size: .85rem; color: var(--muted); margin: 0; }

/* ---------- Sections ---------- */
.section { padding: 78px 0; }
.section-tint { background: var(--bg-tint); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { margin-bottom: 14px; }
.section-tint .section-intro, .section .section-intro { margin-bottom: 34px; }

/* check grids */
.check-grid { list-style: none; margin: 28px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 30px; }
.check-grid.tight { grid-template-columns: 1fr; gap: 12px; margin-top: 18px; }
.check-grid li { position: relative; padding-left: 30px; color: var(--ink-soft); font-size: 1rem; }
.check-grid li::before { content: ""; position: absolute; left: 0; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: var(--grad-soft); border: 1px solid rgba(21,115,212,.35); }
.check-grid li::after { content: ""; position: absolute; left: 6px; top: 9px; width: 6px; height: 3px; border-left: 2px solid var(--brand); border-bottom: 2px solid var(--brand); transform: rotate(-45deg); }

/* ---------- Offers ---------- */
.offer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 8px; }
.offer-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; display: flex; flex-direction: column; box-shadow: var(--shadow-sm); transition: transform .18s ease, box-shadow .22s ease, border-color .2s ease; }
.offer-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #d3e2f2; }
.offer-featured { border-color: transparent; box-shadow: var(--shadow-lg); position: relative; background:
  linear-gradient(#fff, #fff) padding-box,
  var(--grad) border-box; border: 1.5px solid transparent; }
.offer-featured::before { content: "Most chosen"; position: absolute; top: -12px; left: 26px; background: var(--grad); color: #fff; font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; }
.offer-tag { font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--brand); margin: 0 0 10px; }
.offer-card h3 { margin-bottom: 10px; }
.offer-desc { font-size: .96rem; color: var(--ink-soft); margin: 0 0 18px; }
.offer-list { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 9px; }
.offer-list li { position: relative; padding-left: 20px; font-size: .92rem; color: var(--ink-soft); }
.offer-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }
.offer-meta { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line-soft); display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.offer-dur { font-size: .85rem; color: var(--muted); font-weight: 500; }
.offer-price { font-family: var(--display); font-weight: 700; color: var(--ink); font-size: 1.02rem; }
.offer-price em { font-style: normal; font-weight: 500; color: var(--muted); font-size: .8rem; }
.offer-note { text-align: center; font-size: .92rem; color: var(--muted); margin: 30px 0 0; }

/* ---------- Delivery ---------- */
.delivery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 10px; }
.delivery-col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-sm); }
.delivery-col h3 { color: var(--brand-dk); margin-bottom: 6px; }

/* ---------- Proof ---------- */
.proof { background: var(--bg-tint); border-top: 1px solid var(--line); }
.proof-card { background: var(--ink); color: #dfe8f2; border-radius: 22px; padding: 48px 44px; box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.proof-card::after { content: ""; position: absolute; right: -120px; top: -120px; width: 360px; height: 360px; background: radial-gradient(circle, rgba(22,182,216,.28), transparent 65%); }
.proof-eyebrow { position: relative; text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; font-weight: 700; color: var(--cyan); margin: 0 0 12px; }
.proof-title { position: relative; color: #fff; font-size: clamp(1.7rem, 3.6vw, 2.5rem); margin-bottom: 16px; }
.proof-body { position: relative; color: #b9cade; max-width: 940px; margin: 0 0 34px; font-size: 1.04rem; }
.proof-stats { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px 28px; margin-bottom: 36px; }
.proof-stats .stat-num { color: #fff; font-size: 1.7rem; }
.proof-stats .stat-label { color: #8ea6c2; }
.proof-card .btn-primary { position: relative; }

/* ---------- Coverage ---------- */
.coverage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.coverage-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow-sm); }
.coverage-item strong { display: block; font-family: var(--display); color: var(--ink); font-size: 1.05rem; margin-bottom: 6px; }
.coverage-item span { font-size: .9rem; color: var(--muted); }

/* ---------- Why ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px 24px; margin-top: 8px; }
.why-item { display: flex; gap: 12px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px; box-shadow: var(--shadow-sm); }
.why-item p { margin: 0; color: var(--ink-soft); font-size: .97rem; }
.why-mark { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: .8rem; font-weight: 700; }

/* ---------- Contact ---------- */
.contact { background: radial-gradient(900px 400px at 50% 0%, var(--bg-tint-2), rgba(238,245,252,0)); }
.contact-note { margin-top: 26px; font-size: .9rem; color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #9fb4cc; padding: 44px 0; }
.footer-wrap { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.site-footer .brand { color: #fff; }
.site-footer .brand strong { color: var(--cyan); }
.footer-tag { color: #c3d3e6; margin: 4px 0 0; font-size: .95rem; }
.footer-copy { margin: 4px 0 0; font-size: .82rem; color: #6f89a6; }

/* ---------- Case study page ---------- */
.cs-hero { padding: 60px 0 20px; }
.cs-back { font-size: .9rem; font-weight: 600; }
.cs-title { font-size: clamp(2rem, 4.4vw, 3rem); margin: 18px 0 10px; }
.cs-sub { color: var(--muted); font-size: 1.05rem; }
.cs-block { padding: 30px 0; }
.cs-block h2 { font-size: 1.5rem; }
.cs-block p { max-width: 760px; }
.cs-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 26px 0; }
.cs-metric { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow-sm); }
.cs-metric .stat-num { font-size: 1.9rem; }
.cs-list { margin: 18px 0 0; padding-left: 0; list-style: none; display: grid; gap: 12px; max-width: 780px; }
.cs-list li { position: relative; padding-left: 28px; color: var(--ink-soft); }
.cs-list li strong { color: var(--ink); }
.cs-list li::before { content: ""; position: absolute; left: 0; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--grad-soft); border: 1px solid rgba(21,115,212,.35); }
.cs-list li::after { content: ""; position: absolute; left: 5px; top: 12px; width: 6px; height: 3px; border-left: 2px solid var(--brand); border-bottom: 2px solid var(--brand); transform: rotate(-45deg); }
.cs-cta { text-align: center; padding: 20px 0 10px; }

/* ---------- Print (clean standalone PDFs) ---------- */
@media print {
  .site-header, .skip-link { display: none !important; }
  .cs-hero { padding-top: 24px; }
  .cs-block, .proof-card { break-inside: avoid; }
  a { color: inherit !important; text-decoration: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .offer-grid, .why-grid, .proof-stats, .coverage-grid, .cs-metrics { grid-template-columns: 1fr 1fr; }
  .delivery-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .menu-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 18px; box-shadow: var(--shadow-md);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 13px 0; border-bottom: 1px solid var(--line-soft); }
  .nav-cta { text-align: center; margin-top: 10px; border-bottom: 0 !important; }
  .section { padding: 56px 0; }
  .hero { padding: 52px 0 44px; }
  .check-grid, .offer-grid, .why-grid, .proof-stats, .coverage-grid, .hero-stats, .cs-metrics { grid-template-columns: 1fr; }
  .proof-card { padding: 34px 26px; }
  .proof-stats { grid-template-columns: 1fr 1fr; }
  .cta-row .btn { flex: 1 1 auto; }
}