/* =========================================================
   CoolTeck by SSTM — Shared Stylesheet
   ========================================================= */

:root {
  --navy: #0e2a52;
  --navy-dark: #081b38;
  --blue: #1565c0;
  --blue-light: #29a8e0;
  --cyan: #4fd1e8;
  --teal: #1fb6a6;
  --ink: #16233a;
  --gray-700: #4a5568;
  --gray-500: #7c8aa0;
  --gray-200: #e6ebf2;
  --gray-100: #f4f7fb;
  --white: #ffffff;
  --danger: #e0563f;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(14, 42, 82, 0.10);
  --shadow-sm: 0 4px 12px rgba(14, 42, 82, 0.08);
  --max-width: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 84px 0; }
section.tight { padding: 56px 0; }

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 16px; font-weight: 700; color: var(--navy); }
h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 16px; color: var(--gray-700); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  background: rgba(31, 182, 166, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head p { font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue-light), var(--teal));
  color: var(--white);
  box-shadow: 0 8px 20px rgba(41, 168, 224, 0.35);
}
.btn-primary:hover { box-shadow: 0 12px 26px rgba(41, 168, 224, 0.45); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-ghost {
  background: var(--gray-100);
  color: var(--navy);
}
.btn-block { width: 100%; justify-content: center; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ---------- Header / Nav ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 34px; width: auto; }
.brand .sub {
  font-size: 0.65rem;
  color: var(--gray-500);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-left: 1px solid var(--gray-200);
  padding-left: 10px;
  margin-left: 2px;
}
nav.main-nav { display: flex; align-items: center; gap: 4px; }
nav.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.93rem;
  font-weight: 600;
  color: var(--gray-700);
  white-space: nowrap;
}
nav.main-nav a:hover { background: var(--gray-100); color: var(--navy); }
nav.main-nav a.active { color: var(--blue); background: rgba(21, 101, 192, 0.08); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-cta .btn span.short { display: none; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  border-radius: 2px;
}

@media (max-width: 900px) {
  nav.main-nav {
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 10px 20px 20px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    display: none;
  }
  nav.main-nav.open { display: flex; }
  nav.main-nav a { padding: 12px 10px; }
  .nav-toggle { display: block; }
  .nav-cta .btn span.long { display: none; }
  .nav-cta .btn span.short { display: inline; }
}

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(circle at 20% 20%, #123a6e 0%, var(--navy) 45%, var(--navy-dark) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 85% 15%, rgba(79, 209, 232, 0.25), transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(31, 182, 166, 0.2), transparent 45%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-top: 76px;
  padding-bottom: 76px;
}
.hero h1 { color: var(--white); }
.hero p.lead { color: rgba(255,255,255,0.82); font-size: 1.08rem; max-width: 520px; }
.hero .badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.hero .badge-row span {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 12px;
  border-radius: 999px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.hero-visual {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 24px;
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img { max-height: 360px; margin: 0 auto; filter: drop-shadow(0 20px 30px rgba(0,0,0,0.35)); }

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; padding-top: 50px; padding-bottom: 50px; }
  .hero-visual { order: -1; }
}

/* ---------- Stat strip ---------- */
.stat-strip {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-grid .stat b {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--blue);
  font-weight: 800;
}
.stat-grid .stat span { color: var(--gray-500); font-size: 0.9rem; }
@media (max-width: 760px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Cards / Grids ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
@media (min-width: 901px) and (max-width: 1080px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--blue-light), var(--teal));
  color: var(--white);
  margin-bottom: 18px;
  font-size: 1.3rem;
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 760px) { .philosophy-grid { grid-template-columns: repeat(2, 1fr); } }
.philosophy-item {
  text-align: center;
  padding: 26px 14px;
  border-radius: var(--radius);
  background: var(--gray-100);
}
.philosophy-item .ring {
  width: 56px; height: 56px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  border: 3px solid var(--teal);
  color: var(--navy);
  font-weight: 800;
}
.philosophy-item h4 { margin: 0; font-size: 1rem; color: var(--navy); }

/* ---------- Product section ---------- */
.product-block {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--gray-200);
}
.product-block:last-child { border-bottom: none; }
.product-block.reverse { direction: rtl; }
.product-block.reverse > * { direction: ltr; }
.product-photo {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}
.product-photo img { max-height: 340px; }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 0.94rem; }
.spec-table tr { border-bottom: 1px solid var(--gray-200); }
.spec-table td { padding: 10px 6px; vertical-align: top; }
.spec-table td:first-child { color: var(--gray-500); font-weight: 600; width: 46%; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.tag {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(21, 101, 192, 0.08);
  color: var(--blue);
}

@media (max-width: 900px) {
  .product-block, .product-block.reverse { grid-template-columns: 1fr; direction: ltr; }
}

/* ---------- How it works ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
  margin-top: 10px;
}
.flow .step {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px 18px;
  text-align: center;
  position: relative;
}
.flow .step .num {
  width: 32px; height: 32px;
  background: var(--navy);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  margin: 0 auto 14px;
  font-size: 0.9rem;
}
@media (max-width: 900px) { .flow { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .flow { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--navy), var(--navy-dark));
  color: var(--white);
  border-radius: 24px;
  padding: 56px;
  text-align: center;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.78); max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 22px; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid.single { grid-template-columns: 1fr; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.field label { font-size: 0.85rem; font-weight: 700; color: var(--navy); }
.field input, .field select, .field textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--white);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(41,168,224,0.15);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.85rem; color: var(--gray-500); margin-top: 10px; }
.form-success {
  display: none;
  background: rgba(31,182,166,0.1);
  border: 1px solid rgba(31,182,166,0.35);
  color: #12786c;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  font-weight: 600;
  font-size: 0.92rem;
}
.form-success.show { display: block; }

/* ---------- Contact info cards ---------- */
.contact-info { display: grid; gap: 18px; }
.contact-info .item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
}
.contact-info .item .icon {
  width: 40px; height: 40px; flex: none;
  border-radius: 10px;
  background: rgba(21,101,192,0.08);
  color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.contact-info .item h4 { margin: 0 0 4px; font-size: 0.95rem; color: var(--navy); }
.contact-info .item p, .contact-info .item a { margin: 0; font-size: 0.92rem; }

/* ---------- Placeholder / coming soon pages ---------- */
.placeholder-wrap {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gray-100);
}
.placeholder-card {
  background: var(--white);
  border: 1px dashed var(--gray-500);
  border-radius: var(--radius);
  padding: 60px 40px;
  max-width: 640px;
  box-shadow: var(--shadow-sm);
}
.placeholder-card .icon-lg {
  width: 76px; height: 76px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-light), var(--teal));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
}
.status-chip {
  display: inline-block;
  background: rgba(224, 86, 63, 0.1);
  color: var(--danger);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { color: var(--white); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 16px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--cyan); }
.footer-brand img { height: 30px; margin-bottom: 14px; background: var(--white); padding: 6px 10px; border-radius: 8px; }
.footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.6); max-width: 280px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom .sstm-credit { display: flex; align-items: center; gap: 8px; }
.footer-bottom .sstm-credit img { height: 16px; background: var(--white); padding: 3px 6px; border-radius: 5px; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(120deg, var(--navy), #103562);
  color: var(--white);
  padding: 64px 0 56px;
}
.page-hero h1 { color: var(--white); }
.page-hero p { color: rgba(255,255,255,0.78); max-width: 600px; }
.breadcrumb { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--cyan); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.note-banner {
  background: #fff7ed;
  border: 1px solid #fcd9b6;
  color: #8a4b12;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 28px;
}