/* ===== AAL Lighting — tech / control-room theme (white & blue) ===== */
:root {
  --navy-950: #060b1a;
  --navy-900: #0a1122;
  --navy-800: #0f1a33;
  --blue-700: #0a4bce;
  --blue-600: #1b5cf0;
  --blue-500: #3f7dff;
  --blue-400: #5b96ff;
  --cyan:     #38e1ff;
  --blue-100: #e8f0ff;
  --blue-50:  #f4f8ff;

  --ink:      #0c162e;
  --ink-soft: #4a5878;
  --line:     #e3e9f5;
  --white:    #ffffff;

  --radius:   14px;
  --radius-sm: 8px;
  --shadow:   0 18px 44px rgba(10, 43, 115, 0.12);
  --shadow-sm: 0 6px 18px rgba(10, 43, 115, 0.08);
  --glow:     0 0 0 1px rgba(59,125,255,0.25), 0 0 32px rgba(59,125,255,0.25);
  --maxw:     1160px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas, monospace;

  /* reusable tech grid */
  --grid: linear-gradient(rgba(59,125,255,0.06) 1px, transparent 1px),
          linear-gradient(90deg, rgba(59,125,255,0.06) 1px, transparent 1px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

a { color: var(--blue-700); text-decoration: none; }
a:hover { text-decoration: underline; }

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

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; color: var(--ink); }

/* mono technical labels */
.mono, .eyebrow, .kicker, .step-num, .brand-tag, .contact-list span, .footer-meta {
  font-family: var(--mono);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 15px;
  padding: 12px 22px; border-radius: 8px;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  cursor: pointer; border: 1px solid transparent; text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-lg { padding: 15px 28px; font-size: 16px; }

.btn-primary {
  background: linear-gradient(180deg, var(--blue-500), var(--blue-700));
  color: #fff; box-shadow: 0 10px 24px rgba(10, 75, 206, 0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(27,92,240,0.45); }

.btn-ghost { background: transparent; color: var(--blue-700); border-color: var(--line); }
.btn-ghost:hover { background: var(--blue-50); border-color: var(--blue-500); transform: translateY(-1px); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 42px; height: 42px; flex: none; border-radius: 10px; box-shadow: var(--shadow-sm); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-size: 19px; font-weight: 500; color: var(--ink); letter-spacing: 0.01em; }
.brand-name strong { font-weight: 800; color: var(--blue-700); }
.brand-tag { font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); }

.site-nav { display: flex; gap: 26px; margin-left: auto; }
.site-nav a { color: var(--ink-soft); font-weight: 500; font-size: 14.5px; font-family: var(--mono); }
.site-nav a:hover { color: var(--blue-700); text-decoration: none; }
.header-cta { flex: none; }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden; color: #eaf1ff;
  background:
    radial-gradient(900px 460px at 82% -8%, rgba(56,225,255,0.18), transparent 60%),
    radial-gradient(760px 520px at 8% 110%, rgba(27,92,240,0.28), transparent 60%),
    linear-gradient(160deg, var(--navy-950), var(--navy-800));
  padding: 104px 0 112px;
}
.hero::before { /* tech grid overlay */
  content: ""; position: absolute; inset: 0;
  background-image: var(--grid); background-size: 46px 46px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 40%, transparent 85%);
  opacity: .9; z-index: 1;
}
.hero-inner { max-width: 820px; position: relative; z-index: 2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--blue-400);
  border: 1px solid rgba(91,150,255,0.35); background: rgba(59,125,255,0.10);
  padding: 7px 14px; border-radius: 6px; margin-bottom: 26px;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }

.hero h1 { font-size: clamp(42px, 6.2vw, 72px); font-weight: 800; margin-bottom: 22px; color: #fff; }
.hero h1 .accent { color: var(--blue-400); }
.hero-lead { font-size: clamp(17px, 2vw, 20px); color: #b9c6e6; max-width: 660px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 36px 0 18px; }
.hero-note { font-size: 14px; color: #8ea0c8; font-family: var(--mono); }
.hero-note a { color: var(--blue-400); }

/* readout strip under hero */
.hero-stats {
  position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 14px 40px;
  margin-top: 46px; padding-top: 28px; border-top: 1px solid rgba(91,150,255,0.18);
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat b { font-family: var(--mono); font-size: 22px; color: #fff; font-weight: 700; }
.hero-stat span { font-size: 12.5px; letter-spacing: 0.08em; text-transform: uppercase; color: #7f92bd; }

/* ===== Sections ===== */
.section { padding: 92px 0; position: relative; }
.section-alt { background: var(--blue-50); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 740px; margin: 0 auto 54px; text-align: center; }
.kicker {
  display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--blue-700); margin-bottom: 16px;
}
.kicker::before { content: "// "; color: var(--blue-400); }
.kicker-light { color: var(--blue-400); }
.section-head h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; }
.section-intro { margin-top: 18px; font-size: 18px; color: var(--ink-soft); }

/* ===== Grids ===== */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* Why cards */
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow-sm); overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan)); opacity: 0; transition: opacity .2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(59,125,255,0.4); }
.card:hover::after { opacity: 1; }
.card-icon {
  width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(180deg, var(--blue-50), var(--blue-100));
  border: 1px solid rgba(59,125,255,0.25);
  color: var(--blue-700); font-size: 20px; margin-bottom: 18px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 15px; }

/* Range cards */
.range-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.range-card::before {
  content: attr(data-id); position: absolute; top: 18px; right: 20px;
  font-family: var(--mono); font-size: 12px; color: var(--blue-400); opacity: .7;
}
.range-card::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--blue-700));
}
.range-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(59,125,255,0.4); }
.range-card h3 { font-size: 19px; margin-bottom: 10px; }
.range-card p { color: var(--ink-soft); font-size: 15px; }

/* ===== Steps ===== */
.steps {
  list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 24px; position: relative; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.step-num {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 10px;
  background: var(--navy-900); color: var(--cyan); font-weight: 700; font-size: 18px; margin-bottom: 18px;
  border: 1px solid rgba(56,225,255,0.35); box-shadow: 0 0 18px rgba(56,225,255,0.20);
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 15px; }

/* ===== CTA ===== */
.cta {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(680px 340px at 12% 0%, rgba(56,225,255,0.22), transparent 60%),
    radial-gradient(680px 400px at 100% 100%, rgba(27,92,240,0.35), transparent 60%),
    linear-gradient(150deg, var(--navy-950), var(--navy-800));
}
.cta::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: var(--grid); background-size: 46px 46px;
  mask-image: radial-gradient(120% 120% at 50% 50%, #000 30%, transparent 80%); opacity: .7;
}
.cta-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.cta-copy h2 { color: #fff; font-size: clamp(28px, 3.4vw, 38px); font-weight: 800; margin-bottom: 12px; }
.cta-copy p { color: rgba(220,230,255,0.82); font-size: 18px; margin-bottom: 26px; }

.cta-card {
  background: rgba(10,17,34,0.55); border: 1px solid rgba(91,150,255,0.28);
  border-radius: var(--radius); padding: 30px; backdrop-filter: blur(6px);
  box-shadow: var(--glow);
}
.cta-card h3 { color: #fff; font-size: 20px; margin-bottom: 12px; }
.cta-card address { font-style: normal; color: rgba(210,222,255,0.8); line-height: 1.7; margin-bottom: 20px; font-family: var(--mono); font-size: 14px; }
.contact-list { list-style: none; display: grid; gap: 12px; }
.contact-list li { display: flex; gap: 12px; align-items: baseline; }
.contact-list span {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--blue-400); width: 52px; flex: none;
}
.contact-list a { color: #fff; font-weight: 600; }
.contact-list a:hover { color: var(--cyan); }

/* ===== Footer ===== */
.site-footer { background: var(--navy-950); color: rgba(210,222,255,0.62); padding: 46px 0; border-top: 1px solid rgba(91,150,255,0.14); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.brand-footer .brand-mark { width: 38px; height: 38px; }
.brand-footer .brand-name { color: #fff; }
.brand-footer .brand-name strong { color: var(--blue-400); }
.footer-meta { font-size: 13px; letter-spacing: 0.08em; }
.footer-copy { font-size: 12.5px; color: rgba(160,175,215,0.5); }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .site-nav { display: none; }
  .header-cta { margin-left: auto; }
  .brand-tag { display: none; }
  .section { padding: 66px 0; }
  .hero { padding: 72px 0 80px; }
}
@media (max-width: 560px) {
  .grid-4, .grid-3, .steps { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
}