/* ============================================
   PureExpertz.pro — Main Stylesheet
   Design: Dark Navy + Gold + Bold Typography
   ============================================ */

:root {
  --gold:       #FFD700;
  --gold-light: #faf089;
  --blue:       #188bf6;
  --blue-dark:  #0038FF;
  --navy:       #0F2435;
  --navy-dark:  #011627;
  --navy-mid:   #172b43;
  --gray:       #8893A8;
  --gray-dark:  #565A7C;
  --white:      #ffffff;
  --black:      #000000;
  --font-head:  'Spline Sans', 'Space Grotesk', sans-serif;
  --font-body:  'Roboto', 'Inter', sans-serif;
  --radius:     8px;
  --radius-lg:  16px;
  --border:     1px solid rgba(255,255,255,0.08);
  --shadow:     0 4px 32px rgba(0,0,0,0.4);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--navy-dark);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.4rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; }
p  { color: var(--gray); line-height: 1.75; }

a { color: var(--gold); text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .8; }

/* ── LAYOUT ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 96px 0; }
.section-sm { padding: 56px 0; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all .2s;
  border: none;
  text-decoration: none;
}
.btn-gold   { background: var(--gold); color: var(--black); }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,215,0,.3); }
.btn-outline { background: transparent; border: 2px solid var(--gold); color: var(--gold); }
.btn-outline:hover { background: var(--gold); color: var(--black); }
.btn-blue   { background: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--blue-dark); transform: translateY(-2px); }
.btn-sm { padding: 10px 20px; font-size: .9rem; }
.btn-lg { padding: 18px 36px; font-size: 1.1rem; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(1,22,39,.92);
  backdrop-filter: blur(12px);
  border-bottom: var(--border);
  padding: 16px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--white);
}
.nav-logo span { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--gray); font-size: .95rem; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--white); }
.nav-cta { display: flex; gap: 12px; }
.nav-menu-btn { display: none; background: none; border: none; color: var(--white); cursor: pointer; font-size: 1.5rem; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: radial-gradient(ellipse at 20% 50%, rgba(24,139,246,.15) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(255,215,0,.08) 0%, transparent 50%),
              var(--navy-dark);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,215,0,.1);
  border: 1px solid rgba(255,215,0,.3);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 24px;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.hero h1 { margin-bottom: 24px; }
.hero h1 .highlight { color: var(--gold); }
.hero p.lead {
  font-size: 1.2rem;
  color: var(--gray);
  max-width: 580px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 48px;
  border-top: var(--border);
}
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--white);
  display: block;
}
.stat-label { font-size: .85rem; color: var(--gray); }

/* ── SECTION HEADERS ── */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header .eyebrow {
  color: var(--gold);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 12px;
  display: block;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { max-width: 600px; margin: 0 auto; }

/* ── CARDS ── */
.card {
  background: var(--navy-mid);
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,215,0,.25); }
.card-icon {
  width: 52px; height: 52px;
  background: rgba(255,215,0,.1);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.card h3 { color: var(--white); margin-bottom: 12px; }
.card p  { font-size: .95rem; }

/* ── GRID ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ── SERVICES ── */
.services { background: var(--navy); }
.service-card { border-left: 3px solid var(--gold); }
.service-card .tag {
  display: inline-block;
  background: rgba(24,139,246,.15);
  color: var(--blue);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: .75rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
}

/* ── ACADEMY ── */
.academy { background: var(--navy-dark); }
.academy-card {
  background: linear-gradient(135deg, var(--navy-mid), var(--navy));
  border: 1px solid rgba(255,215,0,.2);
  position: relative;
  overflow: hidden;
}
.academy-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--blue));
}
.cohort-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,215,0,.12);
  color: var(--gold);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 16px;
}

/* ── SURVEY CTA ── */
.survey-cta {
  background: linear-gradient(135deg, rgba(24,139,246,.15), rgba(255,215,0,.08));
  border: var(--border);
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
}

/* ── FORM ── */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; color: var(--gray); font-size: .9rem; margin-bottom: 8px; font-weight: 500; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--white);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: border-color .2s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--gold); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success {
  display: none;
  background: rgba(34,197,94,.1);
  border: 1px solid rgba(34,197,94,.3);
  color: #4ade80;
  padding: 16px;
  border-radius: var(--radius);
  margin-top: 16px;
  text-align: center;
}

/* ── CONTACT ── */
.contact { background: var(--navy); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

/* ── FOOTER ── */
.footer {
  background: var(--black);
  padding: 64px 0 32px;
  border-top: var(--border);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .nav-logo { font-size: 1.6rem; margin-bottom: 16px; display: block; }
.footer-brand p { font-size: .9rem; max-width: 280px; }
.footer-col h4 { color: var(--white); margin-bottom: 20px; font-size: .95rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--gray); font-size: .9rem; transition: color .2s; }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 32px;
  border-top: var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p { font-size: .85rem; }

/* ── NOTIFICATION TOAST ── */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--navy-mid);
  border: 1px solid var(--gold);
  color: var(--white);
  padding: 16px 24px;
  border-radius: var(--radius);
  z-index: 9999;
  display: none;
  max-width: 320px;
  box-shadow: var(--shadow);
}
.toast.show { display: block; animation: slideIn .3s ease; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: none; opacity: 1; } }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid    { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid     { grid-template-columns: 1fr 1fr; }
  .nav-links       { display: none; }
  .nav-menu-btn    { display: block; }
  .hero-stats      { gap: 24px; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid  { grid-template-columns: 1fr; }
  .survey-cta   { padding: 40px 24px; }
  .hero-actions { flex-direction: column; }
  .btn-lg       { width: 100%; justify-content: center; }
}