/* ============================================================
   SE Forensic — Demo Site Stylesheet
   Palette: deep navy + warm amber accent (precision / trust)
   ============================================================ */

:root {
  --navy-900: #0a1a2f;
  --navy-800: #0f2742;
  --navy-700: #163454;
  --navy-600: #1e4068;
  --steel-100: #eef3f8;
  --steel-200: #d8e3ef;
  --steel-300: #b6c6d8;
  --slate: #5b6b7d;
  --ink: #16212e;
  --amber: #f5a623;
  --amber-dark: #d6890c;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(10, 26, 47, .08), 0 1px 2px rgba(10, 26, 47, .06);
  --shadow-md: 0 8px 24px rgba(10, 26, 47, .10);
  --shadow-lg: 0 20px 50px rgba(10, 26, 47, .18);
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--navy-700); text-decoration: none; }

h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; color: var(--navy-900); font-weight: 700; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }

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

.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--tint { background: var(--steel-100); }
.section--navy { background: var(--navy-900); color: var(--steel-200); }
.section--navy h2, .section--navy h3 { color: #fff; }

.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--amber-dark); margin-bottom: 14px;
}
.section--navy .eyebrow { color: var(--amber); }

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--slate); font-size: 1.08rem; margin: 0; }
.section--navy .section-head p { color: var(--steel-300); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: 1rem;
  padding: 14px 26px; border-radius: 999px; border: 2px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s, color .2s, border-color .2s;
  font-family: inherit; line-height: 1;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--amber); color: var(--navy-900); }
.btn--primary:hover { background: var(--amber-dark); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(245, 166, 35, .35); }
.btn--ghost { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); border-color: #fff; }
.btn--dark { background: var(--navy-800); color: #fff; }
.btn--dark:hover { background: var(--navy-700); transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ---------- Header / Nav ---------- */
.header {
  position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--steel-200); transition: box-shadow .3s;
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong { font-size: 1.18rem; color: var(--navy-900); letter-spacing: -.01em; }
.brand-text span { font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--slate); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 10px 14px; border-radius: 8px; font-weight: 500; font-size: .97rem;
  color: var(--navy-800); transition: background .18s, color .18s;
}
.nav-links a:hover { background: var(--steel-100); color: var(--navy-900); }
.nav-cta { margin-left: 8px; }
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 8px; border-radius: 8px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy-900); margin: 5px 0; transition: .3s; border-radius: 2px; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(245, 166, 35, .14), transparent 60%),
    linear-gradient(155deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(900px 500px at 30% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(900px 500px at 30% 30%, #000 30%, transparent 75%);
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding: clamp(60px, 9vw, 110px) 0; }
.hero h1 { color: #fff; font-size: clamp(2.2rem, 5vw, 3.6rem); margin-bottom: 20px; }
.hero h1 .accent { color: var(--amber); }
.hero-lede { font-size: 1.18rem; color: var(--steel-200); max-width: 540px; margin-bottom: 32px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: .9rem; color: var(--steel-300); }
.hero-badges span { display: inline-flex; align-items: center; gap: 7px; }
.hero-badges svg { width: 16px; height: 16px; color: var(--amber); }

.hero-card {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius); padding: 28px; backdrop-filter: blur(6px);
}
.hero-card h3 { color: #fff; font-size: 1.05rem; display: flex; align-items: center; gap: 10px; }
.hero-card .pulse { width: 10px; height: 10px; border-radius: 50%; background: #2ecc71; box-shadow: 0 0 0 0 rgba(46, 204, 113, .6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 12px rgba(46, 204, 113, 0); } 100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); } }
.hero-card p { color: var(--steel-300); font-size: .95rem; }
.hero-phones { display: grid; gap: 12px; margin-top: 18px; }
.hero-phone { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: rgba(255, 255, 255, .05); border-radius: var(--radius-sm); border: 1px solid rgba(255, 255, 255, .08); }
.hero-phone svg { width: 20px; height: 20px; color: var(--amber); flex: none; }
.hero-phone .loc { font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; color: var(--steel-300); }
.hero-phone .num { font-size: 1.12rem; font-weight: 700; color: #fff; }
.hero-phone a { color: #fff; }

/* ---------- Stat strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat .num { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; color: var(--navy-900); letter-spacing: -.03em; }
.section--navy .stat .num { color: #fff; }
.stat .num .unit { color: var(--amber); }
.stat .label { font-size: .92rem; color: var(--slate); font-weight: 500; }
.section--navy .stat .label { color: var(--steel-300); }

/* ---------- Services ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card {
  background: #fff; border: 1px solid var(--steel-200); border-radius: var(--radius);
  padding: 26px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  position: relative; overflow: hidden;
}
.svc-card::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: var(--amber); transition: width .35s var(--ease); }
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--steel-300); }
.svc-card:hover::before { width: 100%; }
.svc-icon {
  width: 50px; height: 50px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(145deg, var(--navy-800), var(--navy-600)); margin-bottom: 16px;
}
.svc-icon svg { width: 26px; height: 26px; color: var(--amber); }
.svc-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.svc-card p { font-size: .94rem; color: var(--slate); margin: 0; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-grid ul { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.about-grid li { display: flex; gap: 12px; align-items: flex-start; font-size: 1rem; }
.about-grid li svg { width: 22px; height: 22px; color: var(--amber-dark); flex: none; margin-top: 2px; }
.about-visual {
  background: linear-gradient(155deg, var(--navy-900), var(--navy-700)); border-radius: var(--radius);
  padding: 40px; color: #fff; box-shadow: var(--shadow-lg);
}
.about-visual h3 { color: #fff; }
.disc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; }
.disc { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius-sm); padding: 14px; }
.disc .k { font-size: 1.5rem; font-weight: 800; color: var(--amber); }
.disc .v { font-size: .85rem; color: var(--steel-300); }

/* ---------- Team ---------- */
.team-group + .team-group { margin-top: 44px; }
.team-group h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; color: var(--slate); border-bottom: 1px solid var(--steel-200); padding-bottom: 10px; margin-bottom: 24px; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.member {
  background: #fff; border: 1px solid var(--steel-200); border-radius: var(--radius); padding: 22px; text-align: center;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.member:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.avatar {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px; display: grid; place-items: center;
  font-weight: 700; font-size: 1.15rem; color: #fff; letter-spacing: .02em;
  background: linear-gradient(145deg, var(--navy-700), var(--navy-600));
}
.member h4 { margin: 0 0 4px; font-size: 1rem; color: var(--navy-900); }
.member .creds { font-size: .82rem; color: var(--amber-dark); font-weight: 600; letter-spacing: .03em; }

/* ---------- Courses ---------- */
.course-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.course {
  background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius);
  padding: 22px; transition: background .25s, transform .25s var(--ease);
}
.course:hover { background: rgba(255, 255, 255, .08); transform: translateY(-3px); }
.course .tag { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--amber); font-weight: 700; }
.course h3 { color: #fff; font-size: 1.05rem; margin: 8px 0 6px; }
.course p { color: var(--steel-300); font-size: .9rem; margin: 0; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.office { display: flex; gap: 16px; padding: 20px; border: 1px solid var(--steel-200); border-radius: var(--radius); background: #fff; margin-bottom: 16px; }
.office svg { width: 26px; height: 26px; color: var(--amber-dark); flex: none; }
.office h4 { margin: 0 0 4px; }
.office p { margin: 0; color: var(--slate); font-size: .95rem; }
.office a { font-weight: 600; color: var(--navy-800); }
.form { background: #fff; border: 1px solid var(--steel-200); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .85rem; font-weight: 600; color: var(--navy-800); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--steel-300); border-radius: var(--radius-sm);
  font-family: inherit; font-size: .97rem; color: var(--ink); background: var(--steel-100); transition: border-color .2s, box-shadow .2s, background .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--amber); background: #fff; box-shadow: 0 0 0 3px rgba(245, 166, 35, .18); }
.field textarea { resize: vertical; min-height: 110px; }
.form .btn { width: 100%; justify-content: center; }
.form-note { font-size: .82rem; color: var(--slate); text-align: center; margin: 14px 0 0; }
.form-success { display: none; text-align: center; padding: 20px; background: #eafaf0; border: 1px solid #b6e6c8; border-radius: var(--radius-sm); color: #1b7a43; font-weight: 600; margin-top: 16px; }

/* ---------- Footer ---------- */
.footer { background: var(--navy-900); color: var(--steel-300); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer h4 { color: #fff; font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer a { color: var(--steel-300); font-size: .94rem; display: block; padding: 4px 0; transition: color .18s; }
.footer a:hover { color: var(--amber); }
.footer-about { font-size: .94rem; max-width: 360px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .85rem; color: var(--slate); }
.footer-bottom .demo-flag { color: var(--amber); font-weight: 600; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Demo ribbon ---------- */
.demo-ribbon {
  background: var(--amber); color: var(--navy-900); text-align: center; font-size: .85rem; font-weight: 600;
  padding: 7px 16px; letter-spacing: .01em;
}
.demo-ribbon a { color: var(--navy-900); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero-card { max-width: 460px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .svc-grid, .course-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: 74px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--steel-200); padding: 12px 16px 20px;
    box-shadow: var(--shadow-md); transform: translateY(-130%); transition: transform .35s var(--ease); max-height: calc(100vh - 74px); overflow: auto;
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 12px; border-radius: 10px; }
  .nav-cta { margin: 8px 0 0; }
  .nav-cta .btn { width: 100%; justify-content: center; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .svc-grid, .course-grid, .team-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .disc-row { grid-template-columns: 1fr 1fr; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}