/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:   #0a1628;
  --navy-2: #122040;
  --navy-3: #1c3260;
  --white:  #ffffff;
  --off-white: #f5f4f0;
  --muted:  #8a9ab8;
  --accent: #c8a96e;   /* warm gold — small pops only */
  --grad-blue:   #11154e;
  --grad-purple: #421464;
  --grad-red:    #6e0e20;
  --gradient: linear-gradient(135deg, #11154e 0%, #421464 50%, #6e0e20 100%);
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;
  --radius: 4px;
  --transition: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--white);
  color: var(--navy);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ============================================
   TYPOGRAPHY HELPERS
   ============================================ */
.serif          { font-family: var(--font-serif); }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 400; line-height: 1.15; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(10,22,40,0.08);
  transition: background var(--transition);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--navy);
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  list-style: none;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  opacity: 0.55;
  transition: opacity var(--transition);
}

.nav-links a:hover,
.nav-links a.active { opacity: 1; }

.nav-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-socials a {
  color: var(--navy);
  opacity: 0.45;
  transition: opacity var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
}

.nav-socials a:hover { opacity: 1; transform: translateY(-2px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 70% 80% at 10% 35%, rgba(17,21,78,0.9) 0%, transparent 65%),
    radial-gradient(ellipse 60% 70% at 80% 20%, rgba(66,20,100,0.85) 0%, transparent 60%),
    radial-gradient(ellipse 55% 65% at 48% 88%, rgba(110,14,32,0.8) 0%, transparent 60%),
    radial-gradient(ellipse 45% 50% at 88% 72%, rgba(42,10,80,0.65) 0%, transparent 55%),
    radial-gradient(ellipse 35% 45% at 28% 68%, rgba(17,21,78,0.5) 0%, transparent 50%),
    #07091e;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
}

/* subtle grid pattern */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  width: 100%;
}

.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

/* ============================================
   SLOT MACHINE NAME
   ============================================ */
.slot-wrapper {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0;
  /* clip vertically (one cell tall) but allow horizontal overflow */
  clip-path: inset(0 -300px);
  /* height is set by JS to match one character cell */
}

.slot-col {
  display: flex;
  flex-direction: column;
  will-change: transform;
  transition: transform 0s linear;
}

.slot-char {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 7.5rem);
  font-weight: 400;
  color: var(--white);
  white-space: pre;   /* preserve spaces */
  display: block;
  line-height: 1.15;
  text-align: center;
}

/* ============================================
   HERO TAGLINE & CTA
   ============================================ */
.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  color: rgba(255,255,255,0.65);
  margin-top: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-tagline em { color: rgba(255,255,255,0.9); font-style: italic; }

.hero-cta {
  margin-top: 44px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-block;
}

.btn-primary {
  background: var(--white);
  color: var(--navy);
}
.btn-primary:hover { background: var(--off-white); transform: translateY(-2px); }

.btn-ghost {
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
}
.btn-ghost:hover { border-color: var(--white); transform: translateY(-2px); }

.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-navy:hover { background: var(--navy-2); transform: translateY(-2px); }

/* ============================================
   SCROLL HINT
   ============================================ */
.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

/* ============================================
   SECTION PREVIEW (HOME)
   ============================================ */
.section-preview {
  background: var(--off-white);
  padding: 100px 24px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2px;
}

.preview-card {
  background: var(--white);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background var(--transition), transform var(--transition);
  cursor: pointer;
  position: relative;
}

.preview-card:hover { background: var(--navy); color: var(--white); transform: translateY(-4px); }
.preview-card:hover .preview-tag { background: rgba(255,255,255,0.12); color: var(--white); }
.preview-card:hover .card-arrow { color: var(--white); opacity: 1; }

.preview-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--off-white);
  padding: 4px 10px;
  border-radius: 2px;
  width: fit-content;
  transition: all var(--transition);
}

.preview-card h3 {
  font-size: 1.5rem;
}

.preview-card p {
  font-size: 0.9rem;
  color: inherit;
  opacity: 0.65;
  line-height: 1.7;
}

.card-arrow {
  margin-top: auto;
  font-size: 1.4rem;
  opacity: 0.3;
  transition: all var(--transition);
  align-self: flex-end;
}

/* ============================================
   PAGE HEADER (inner pages)
   ============================================ */
.page-header {
  background:
    radial-gradient(ellipse 80% 90% at 5% 50%, rgba(17,21,78,0.9) 0%, transparent 60%),
    radial-gradient(ellipse 65% 75% at 85% 20%, rgba(66,20,100,0.85) 0%, transparent 60%),
    radial-gradient(ellipse 55% 70% at 50% 100%, rgba(110,14,32,0.75) 0%, transparent 55%),
    radial-gradient(ellipse 40% 55% at 70% 70%, rgba(42,10,80,0.6) 0%, transparent 50%),
    #07091e;
  padding: 160px 24px 80px;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  color: var(--white);
}

.page-header p {
  font-family: var(--font-serif);
  font-style: italic;
  color: rgba(255,255,255,0.55);
  font-size: 1.1rem;
  margin-top: 16px;
}

/* ============================================
   WORK PAGE
   ============================================ */
.work-section {
  padding: 80px 24px;
  background: var(--white);
}

.work-section + .work-section { background: var(--off-white); }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--navy);
  margin-bottom: 48px;
}

/* PM Case Study Card */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.case-card {
  border: 1px solid rgba(10,22,40,0.1);
  border-radius: 6px;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.case-card:hover { box-shadow: 0 12px 40px rgba(10,22,40,0.12); transform: translateY(-4px); }

.case-card-img {
  height: 200px;
  background: var(--navy-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.2);
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  position: relative;
  overflow: hidden;
}

.case-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--navy-3) 0%, var(--navy) 100%);
  opacity: 0.6;
}

/* white-bg logo cards — suppress the dark overlay */
.case-card-img[style*="background:#fff"]::after,
.case-card-img[style*="background: #fff"]::after {
  display: none;
}

.case-card-img span { position: relative; z-index: 1; }

.case-card-body {
  padding: 28px;
}

.case-card-body .preview-tag { margin-bottom: 8px; }

.case-card-body h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.case-card-body p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.meta-pill {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--off-white);
  color: var(--navy);
  letter-spacing: 0.04em;
}

.case-link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  border-bottom: 1px solid var(--navy);
  padding-bottom: 2px;
  transition: opacity var(--transition);
}

.case-link:hover { opacity: 0.5; }

/* Featured full-width case */
.case-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid rgba(10,22,40,0.1);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 40px;
  transition: box-shadow var(--transition);
}

.case-featured:hover { box-shadow: 0 16px 48px rgba(10,22,40,0.1); }

.case-featured .case-card-img {
  height: 100%;
  min-height: 320px;
  border-radius: 0;
}

.case-featured .case-card-body {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-featured h3 { font-size: 1.8rem; margin-bottom: 14px; }

/* ============================================
   PROJECTS PAGE
   ============================================ */
.projects-section {
  padding: 80px 24px;
}

.projects-section:nth-child(even) { background: var(--off-white); }

/* coding projects */
.repo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.repo-card {
  background: var(--gradient);
  color: var(--white);
  padding: 32px;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.repo-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(10,22,40,0.2); }

.repo-card h4 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--white);
}

.repo-card p {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

.repo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.repo-tag {
  font-size: 0.68rem;
  font-weight: 500;
  padding: 3px 10px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
}

.repo-links {
  display: flex;
  gap: 16px;
}

.repo-links a {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0.6;
  transition: opacity var(--transition);
}

.repo-links a:hover { opacity: 1; }

/* figma cards */
.figma-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.figma-card {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(10,22,40,0.1);
  transition: box-shadow var(--transition), transform var(--transition);
}

.figma-card:hover { box-shadow: 0 12px 40px rgba(10,22,40,0.1); transform: translateY(-3px); }

.figma-thumb {
  height: 220px;
  background: linear-gradient(135deg, #1c3260, #0a1628);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-style: italic;
  color: rgba(255,255,255,0.25);
  font-size: 0.9rem;
  position: relative;
}

.figma-thumb .figma-icon {
  position: absolute;
  top: 16px; right: 16px;
  width: 28px; height: 28px;
  opacity: 0.4;
}

.figma-card-body { padding: 24px; }
.figma-card-body h4 { font-size: 1.1rem; margin-bottom: 8px; }
.figma-card-body p  { font-size: 0.86rem; color: var(--muted); line-height: 1.65; }

/* research cards */
.research-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.research-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid rgba(10,22,40,0.08);
  align-items: start;
  transition: background var(--transition);
}

.research-item:last-child { border-bottom: none; }

.research-year {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--muted);
  padding-top: 4px;
}

.research-body h4 { font-size: 1.2rem; margin-bottom: 6px; }
.research-body .preview-tag { margin-bottom: 10px; }
.research-body p  { font-size: 0.88rem; color: var(--muted); line-height: 1.7; }

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-section {
  padding: 80px 24px;
  max-width: 780px;
  margin: 0 auto;
}

.about-lead {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  line-height: 1.5;
  color: var(--navy);
  margin-bottom: 40px;
}

.about-lead em { font-style: italic; color: var(--navy-3); }

.about-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: #3a4a62;
  margin-bottom: 20px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.skill-group h5 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.skill-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.skill-group li {
  font-family: var(--font-serif);
  font-size: 1rem;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background:
    radial-gradient(ellipse 60% 200% at 20% 50%, rgba(17,21,78,0.9) 0%, transparent 65%),
    radial-gradient(ellipse 50% 200% at 70% 50%, rgba(66,20,100,0.8) 0%, transparent 60%),
    radial-gradient(ellipse 40% 200% at 95% 50%, rgba(110,14,32,0.7) 0%, transparent 55%),
    #07091e;
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding: 32px 24px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.footer a {
  color: rgba(255,255,255,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  transition: color var(--transition);
}

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

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}

.fade-up.delay-1 { animation-delay: 0.15s; }
.fade-up.delay-2 { animation-delay: 0.3s; }
.fade-up.delay-3 { animation-delay: 0.45s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .nav-links { display: none; }

  .case-featured { grid-template-columns: 1fr; }
  .case-featured .case-card-img { min-height: 200px; }
  .case-featured .case-card-body { padding: 28px; }

  .research-item { grid-template-columns: 1fr; gap: 8px; }
  .research-year { font-size: 0.85rem; }
}