/* ============================================================
   ENHANCE Institute — Global Stylesheet (Dark Theme)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:ital,wght@0,400;0,600;0,700;1,400&family=IBM+Plex+Sans:wght@300;400;500&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --teal:        #009B8D;
  --teal-light:  #00BFB0;
  --navy:        #3D5068;
  --black:       #0A0A0A;
  --dark-alt:    #141414;
  --dark-card:   #1A1A1A;
  --white:       #FFFFFF;
  --gray-mid:    #2A2A2A;
  --gray-text:   #9A9A9A;
  --font-serif:  'IBM Plex Serif', Georgia, serif;
  --font-sans:   'IBM Plex Sans', sans-serif;
  --font-mono:   'IBM Plex Mono', monospace;
  --nav-h:       72px;
  --max-w:       1160px;
  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--white);
  background: var(--black);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── NAVIGATION ────────────────────────────────────────────── */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-mid);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
}

nav .logo img { height: 32px; width: auto; display: block; }

nav ul { list-style: none; display: flex; gap: 40px; align-items: center; }

nav ul li a {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-text);
  text-decoration: none;
  transition: color var(--transition);
}

nav ul li a:hover,
nav ul li a.active { color: var(--teal-light); }

nav ul li a.nav-cta {
  background: var(--teal);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 2px;
  transition: background var(--transition);
}

nav ul li a.nav-cta:hover { background: var(--teal-light); color: var(--white); }

/* ── PAGE WRAPPER ──────────────────────────────────────────── */

.page { padding-top: var(--nav-h); min-height: 100vh; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 48px; }

/* ── HERO ──────────────────────────────────────────────────── */

.hero {
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--black);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--gray-mid) 1px, transparent 1px),
    linear-gradient(90deg, var(--gray-mid) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
}

.hero-content { position: relative; z-index: 2; max-width: 800px; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--teal);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.hero h1 em { font-style: italic; color: var(--teal-light); }

.hero-sub {
  font-size: 18px;
  font-weight: 300;
  color: var(--gray-text);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 48px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn-primary {
  display: inline-block;
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 2px;
  transition: background var(--transition);
}

.btn-primary:hover { background: var(--teal-light); }

.btn-secondary {
  display: inline-block;
  color: var(--gray-text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 32px;
  border: 1px solid var(--gray-mid);
  border-radius: 2px;
  transition: all var(--transition);
}

.btn-secondary:hover { border-color: var(--teal); color: var(--teal-light); }

.hero-orca {
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 480px;
  height: 480px;
  opacity: 0.12;
  pointer-events: none;
}

/* ── SECTION BASE ──────────────────────────────────────────── */

section { padding: 100px 0; }
section.alt { background: var(--dark-alt); }

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--teal);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.section-body { font-size: 16px; color: var(--gray-text); max-width: 640px; line-height: 1.9; }

.divider { width: 48px; height: 2px; background: var(--teal); margin: 32px 0; }

/* ── STATS ROW ─────────────────────────────────────────────── */

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-mid);
  border: 1px solid var(--gray-mid);
  margin-top: 80px;
}

.stat-block { background: var(--dark-card); padding: 48px 40px; }

.stat-number {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 12px;
}

.stat-number span { color: var(--teal); }

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-text);
}

/* ── PRINCIPLES ────────────────────────────────────────────── */

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 64px; }

.principle { border-top: 2px solid var(--gray-mid); padding-top: 32px; }
.principle.accent { border-top-color: var(--teal); }

.principle-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}

.principle h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}

.principle p { font-size: 14px; color: var(--gray-text); line-height: 1.8; }

/* ── ABOUT ─────────────────────────────────────────────────── */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 64px;
}

.about-orca { display: flex; justify-content: center; align-items: center; }

.about-orca img {
  width: 100%;
  max-width: 380px;
  filter: drop-shadow(0 24px 48px rgba(0,155,141,0.2));
}

.philosophy-block {
  background: var(--dark-card);
  border: 1px solid var(--gray-mid);
  border-left: 3px solid var(--teal);
  color: var(--white);
  padding: 56px;
  margin-top: 80px;
}

.philosophy-block blockquote {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  font-style: italic;
  line-height: 1.5;
  color: var(--white);
  margin-bottom: 24px;
}

.philosophy-block cite {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  font-style: normal;
}

.frameworks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-mid);
  border: 1px solid var(--gray-mid);
  margin-top: 80px;
}

.framework-block { background: var(--dark-card); padding: 40px 32px; }

.framework-name {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--teal);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.framework-role {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}

.framework-desc { font-size: 13px; color: var(--gray-text); line-height: 1.8; }

/* ── SERVICES ──────────────────────────────────────────────── */

.service-category { margin-bottom: 64px; }

.service-category-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-text);
  border-bottom: 1px solid var(--gray-mid);
  padding-bottom: 16px;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--gray-mid);
  transition: background var(--transition);
}

.service-item:hover { background: var(--dark-card); margin: 0 -24px; padding: 28px 24px; }

.service-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.service-desc { font-size: 14px; color: var(--gray-text); line-height: 1.7; }

.service-price {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  white-space: nowrap;
  text-align: right;
}

.service-price em {
  font-family: var(--font-sans);
  font-size: 12px;
  font-style: italic;
  color: var(--teal);
  white-space: normal;
  max-width: 220px;
  display: block;
  text-align: right;
  line-height: 1.6;
}

.service-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gray-text);
  margin-top: 32px;
  padding: 24px;
  border-left: 2px solid var(--teal);
  background: var(--dark-card);
}

/* ── RESEARCH ──────────────────────────────────────────────── */

.report-card {
  border: 1px solid var(--gray-mid);
  background: var(--dark-card);
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  margin-bottom: 32px;
  transition: border-color var(--transition);
}

.report-card:hover { border-color: var(--teal); }

.report-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}

.report-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.3;
}

.report-meta { font-size: 14px; color: var(--gray-text); line-height: 1.8; margin-bottom: 8px; }
.report-action { text-align: center; }

.btn-download {
  display: inline-block;
  background: var(--teal);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 2px;
  transition: background var(--transition);
  white-space: nowrap;
}

.btn-download:hover { background: var(--teal-light); }

.btn-coming {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-text);
  border: 1px solid var(--gray-mid);
  padding: 14px 28px;
  border-radius: 2px;
  cursor: default;
}

/* ── CONTACT ───────────────────────────────────────────────── */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  margin-top: 64px;
}

.contact-info p { font-size: 16px; color: var(--gray-text); line-height: 1.9; margin-bottom: 32px; }

.contact-email {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--teal);
  padding-bottom: 2px;
  display: inline-block;
  margin-bottom: 48px;
}

.contact-email:hover { color: var(--teal-light); border-color: var(--teal-light); }

.contact-detail { margin-bottom: 20px; }

.contact-detail-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-text);
  margin-bottom: 4px;
}

.contact-detail-value { font-size: 14px; color: var(--white); }

.contact-statement {
  background: var(--dark-card);
  border-left: 3px solid var(--teal);
  padding: 40px 48px;
}

.contact-statement p {
  font-family: var(--font-serif);
  font-size: 20px;
  font-style: italic;
  color: var(--white);
  line-height: 1.7;
}

/* ── FOOTER ────────────────────────────────────────────────── */

footer {
  background: #050505;
  padding: 64px 0 40px;
  border-top: 1px solid var(--gray-mid);
}

.footer-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 48px; }

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: start;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--gray-mid);
  margin-bottom: 40px;
}

.footer-logo img { height: 28px; margin-bottom: 16px; }

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

.footer-orca img { width: 80px; height: 80px; opacity: 0.6; }

.footer-bottom { display: flex; justify-content: space-between; align-items: center; }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.05em;
}

.footer-links { display: flex; gap: 32px; }

.footer-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--teal); }

/* ── FADE-IN ───────────────────────────────────────────────── */

.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ────────────────────────────────────────────── */

@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .container { padding: 0 24px; }
  .hero-orca { width: 280px; height: 280px; right: -40px; bottom: -40px; }
  .stats-row { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; gap: 32px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .frameworks { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .report-card { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  nav ul { gap: 20px; }
  .philosophy-block { padding: 40px 32px; }
}