/* ============================================================
   KENNY OKEKE PORTFOLIO — SHARED STYLESHEET
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* === DESIGN TOKENS === */
:root {
  --bg:         #F3EBD8;
  --surface:    #FAF6EE;
  --surface-2:  #EDE5D3;
  --green:      #1E3528;
  --green-2:    #2D4F3A;
  --green-3:    #3D6B50;
  --amber:      #C49840;
  --amber-2:    #A07828;
  --amber-3:    #E8C870;
  --charcoal:   #18181A;
  --stone:      #7A7268;
  --stone-2:    #B0A898;
  --border:     rgba(30, 53, 40, 0.10);
  --border-2:   rgba(30, 53, 40, 0.06);
  --white:      #FFFFFF;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;

  --radius-sm:  4px;
  --radius:     10px;
  --radius-lg:  18px;
  --radius-xl:  28px;

  --shadow-xs:  0 1px 3px rgba(30,53,40,0.06), 0 1px 2px rgba(30,53,40,0.04);
  --shadow-sm:  0 2px 8px rgba(30,53,40,0.07), 0 4px 16px rgba(30,53,40,0.05);
  --shadow:     0 4px 12px rgba(30,53,40,0.08), 0 12px 32px rgba(30,53,40,0.07);
  --shadow-lg:  0 8px 24px rgba(30,53,40,0.10), 0 24px 64px rgba(30,53,40,0.08);
  --shadow-amber: 0 4px 20px rgba(196,152,64,0.25), 0 8px 40px rgba(196,152,64,0.12);

  --max-w:  1100px;
  --nav-h:  72px;

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:     cubic-bezier(0.4, 0, 1, 1);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* === GRAIN TEXTURE OVERLAY === */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
}

/* === BASE === */
body {
  background-color: var(--bg);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  overflow-x: hidden;
}
body.loaded { opacity: 1; }
body.leaving { opacity: 0; transition: opacity 0.25s var(--ease-in); }

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(243, 235, 216, 0.88);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
}
.nav-link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--stone);
  transition: color 0.2s ease;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}
.nav-link:hover,
.nav-link.active { color: var(--charcoal); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }

.nav-logo {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.04em;
  text-indent: 0.04em;
  flex-shrink: 0;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s var(--ease-spring);
}
.nav-logo:hover {
  background: var(--green);
  color: var(--bg);
  transform: scale(1.05);
}

/* === FOOTER === */
.footer {
  background: var(--charcoal);
  color: rgba(255,255,255,0.55);
  padding: 64px 32px 48px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-cta {
  font-family: var(--font-display);
  font-size: 36px;
  text-align: center;
  font-weight: 500;
  color: var(--white);
  line-height: 1.2;
  width: 280px;
}
.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.footer-link {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s ease;
}
.footer-link:hover { color: var(--white); }
.footer-link-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.footer-link:hover .footer-link-icon {
  border-color: var(--amber);
  background: rgba(196,152,64,0.12);
}
.footer-link-text strong {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1px;
}

/* === PAGE WRAPPER === */
main { padding-top: var(--nav-h); }

/* === SECTION UTILITIES === */
.section {
  padding: 96px 32px;
}
.section-narrow {
  padding: 80px 32px;
}
.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* === SECTION LABEL === */
.label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.label::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--amber);
  flex-shrink: 0;
}

/* === HEADINGS === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 600;
  color: var(--charcoal);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
}
.btn:active { transform: scale(0.98) !important; }

.btn-amber {
  background: var(--amber);
  color: var(--charcoal);
  box-shadow: var(--shadow-amber);
}
.btn-amber:hover {
  background: var(--amber-2);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(196,152,64,0.35), 0 12px 48px rgba(196,152,64,0.15);
}

.btn-green {
  background: var(--green);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-green:hover {
  background: var(--green-2);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-ghost {
  border: 1.5px solid var(--amber);
  color: var(--amber-2);
  background: transparent;
}
.btn-ghost:hover {
  background: rgba(196,152,64,0.1);
  border-color: var(--amber);
  color: var(--amber-2);
  transform: translateY(-2px);
}

/* === CARDS === */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* === PAGE HERO (experience/project detail) === */
.page-hero {
  padding: calc(var(--nav-h) + 56px) 32px 64px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-hero-logo {
  width: 100px;
  height: 100px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  overflow: hidden;
}
.page-hero-logo img {
  width: 100%; height: 100%;
  object-fit: contain;
}
.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 8px;
}
.page-hero-subtitle {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  color: var(--stone);
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.page-hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 680px;
  margin: 0 auto;
}
.page-hero-actions .btn {
  flex: 1 1 calc(50% - 6px);
  max-width: calc(50% - 6px);
  justify-content: center;
  white-space: nowrap;
}

/* === DETAIL PAGE SECTIONS === */
.detail-section {
  padding: 80px 32px;
  border-bottom: 1px solid var(--border-2);
}
.detail-section:nth-child(even) { background: var(--surface); }
.detail-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: center;
}
.detail-label {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green);
  text-transform: uppercase;
  padding-top: 0;
  text-align: center;
}
.detail-content {
  font-size: 15px;
  line-height: 1.8;
  color: #38352F;
  max-width: 640px;
}
.detail-content p + p { margin-top: 16px; }
.detail-content strong { color: var(--charcoal); font-weight: 500; }

/* === SCROLL REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* === DIVIDER === */
.divider {
  width: 48px;
  height: 2px;
  background: var(--amber);
  margin: 20px 0;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .nav-inner { padding: 0 12px; gap: 8px; }
  .nav-logo { width: 36px; height: 36px; font-size: 13px; }
  .nav-link { font-size: 10px; letter-spacing: 0.01em; }
  .nav-link[href="/"] { display: none; }
  .section { padding: 64px 20px; }
  .section-narrow { padding: 56px 20px; }
  .detail-inner { grid-template-columns: 1fr; gap: 24px; }
  .detail-label { position: static; }
  .footer { padding: 48px 20px 40px; }
  .footer-inner { flex-direction: column; gap: 36px; }
  .footer-cta { font-size: 28px; }
}

@media (max-width: 480px) {
  .nav-inner { gap: 5px; padding: 0 10px; }
  .nav-link { font-size: 9px; letter-spacing: 0; }
  .page-hero { padding: calc(var(--nav-h) + 40px) 20px 48px; }
  .detail-section { padding: 56px 20px; }
  .page-hero-actions { flex-direction: column; padding: 0 24px; }
  .page-hero-actions .btn { flex: 1 1 100%; width: 100%; max-width: 100%; justify-content: center; white-space: normal; min-height: 66px; }
}