/* ============================================
   Marc Smith — Personal Site
   Bold/creative theme, dark-first
   ============================================ */

:root {
  --bg: #0a0a12;
  --bg-elevated: #12121e;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-border: rgba(255, 255, 255, 0.09);
  --text: #f4f3f9;
  --text-muted: #a3a1b8;
  --text-dim: #6f6d85;

  --accent-1: #ff5f6d;   /* coral */
  --accent-2: #7b5cff;   /* violet */
  --accent-3: #00e0c6;   /* teal */
  --accent-grad: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-2) 55%, var(--accent-3) 100%);

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --radius: 18px;
  --container: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
}

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

/* subtle grain overlay for texture */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------- Header / Nav ---------------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(14px) saturate(140%);
  background: rgba(10, 10, 18, 0.6);
  border-bottom: 1px solid var(--surface-border);
}

.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.nav-logo .dot { color: var(--accent-1); }

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--accent-grad);
  color: #0a0a12 !important;
  font-weight: 700 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ---------------- Hero ---------------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 140px 24px 80px;
}

.hero-gradient {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 20%, rgba(123, 92, 255, 0.35), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(255, 95, 109, 0.3), transparent 45%),
    radial-gradient(circle at 50% 85%, rgba(0, 224, 198, 0.25), transparent 50%);
  filter: blur(60px);
  animation: drift 18s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(3%, -3%) scale(1.08); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 40%, transparent 100%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-3);
  margin: 0 0 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.2rem, 10vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-role {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 0 0 28px;
}

.role-chip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 40px;
}
.hero-sub strong { color: var(--text); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-grad);
  color: #0a0a12;
  box-shadow: 0 8px 30px rgba(123, 92, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(123, 92, 255, 0.5); }

.btn-ghost {
  background: var(--surface);
  border-color: var(--surface-border);
  color: var(--text);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent-3); }

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  background: var(--surface);
  border-color: var(--surface-border);
}
.btn-icon:hover { transform: translateY(-2px); border-color: var(--accent-1); color: var(--accent-1); }

.scroll-cue {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-cue span {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--accent-3), transparent);
  animation: scrollpulse 1.8s ease-in-out infinite;
}
@keyframes scrollpulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 1; }
}

/* ---------------- Stats ---------------- */

.stats {
  padding: 60px 0;
  border-bottom: 1px solid var(--surface-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 24px 12px;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 4vw, 3rem);
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------------- Section shared ---------------- */

section { padding: 120px 0; }

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-3);
  margin: 0 0 14px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  margin: 0 0 32px;
  max-width: 780px;
}

/* ---------------- About ---------------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-copy p {
  color: var(--text-muted);
  font-size: 1.02rem;
  margin: 0 0 18px;
}
.about-copy strong { color: var(--text); }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.about-tags span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
}

.about-card {
  background: var(--bg-elevated);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 2px;
  position: relative;
}
.about-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--accent-grad);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
  pointer-events: none;
}
.about-card-inner { padding: 30px; }
.about-card h3 {
  font-family: var(--font-display);
  margin: 0 0 20px;
  font-size: 1.1rem;
}
.fact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.fact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--surface-border);
  padding-bottom: 14px;
}
.fact-list li:last-child { border-bottom: none; padding-bottom: 0; }
.fact-list span { color: var(--text-dim); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; }
.fact-list strong, .fact-list a { color: var(--text); font-weight: 600; }
.fact-list a:hover { color: var(--accent-3); }

/* ---------------- Experience Timeline ---------------- */

.timeline {
  position: relative;
  margin-top: 20px;
  padding-left: 32px;
  border-left: 1px solid var(--surface-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -37.5px;
  top: 6px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent-2);
  box-shadow: 0 0 0 4px rgba(123, 92, 255, 0.12);
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.timeline-card:hover {
  border-color: rgba(123, 92, 255, 0.4);
  transform: translateY(-2px);
}

.timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.timeline-head h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-3);
  white-space: nowrap;
}

.timeline-role {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0 0 16px;
}

.timeline-bullets {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.timeline-bullets li { font-size: 0.95rem; }
.timeline-bullets li::marker { color: var(--accent-1); }

/* ---------------- Skills ---------------- */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 28px;
}
.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 18px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-cloud span {
  font-size: 0.82rem;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.tag-cloud span:hover {
  color: var(--text);
  border-color: var(--accent-3);
}

/* ---------------- Certifications & Education ---------------- */

.certs-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  padding: 16px 20px;
}

.cert-badge {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-grad);
  color: #0a0a12;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-item strong { display: block; font-size: 0.95rem; }
.cert-item span { display: block; font-size: 0.8rem; color: var(--text-dim); margin-top: 2px; }

.edu-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.edu-item {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 14px;
  padding: 18px 20px;
}
.edu-item strong { display: block; font-size: 0.95rem; }
.edu-item span { display: block; font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }

/* ---------------- Contact ---------------- */

.contact {
  text-align: center;
  position: relative;
}
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact .section-kicker, .contact .section-title { margin-left: auto; margin-right: auto; }
.contact-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 36px;
}
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ---------------- Footer ---------------- */

.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer-inner a:hover { color: var(--text); }

/* ---------------- Scroll reveal ---------------- */

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-gradient, .scroll-cue span { animation: none; }
}

/* ---------------- Responsive ---------------- */

@media (max-width: 900px) {
  .about-grid, .certs-grid { grid-template-columns: 1fr; gap: 40px; }
  .skills-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--surface-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-links.is-open { max-height: 320px; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 16px 24px;
    width: 100%;
    border-bottom: 1px solid var(--surface-border);
  }
  .nav-cta { border-radius: 0; text-align: center; }

  section { padding: 80px 0; }
  .hero { padding-top: 120px; min-height: auto; }
  .timeline { padding-left: 24px; }
  .timeline-marker { left: -29.5px; }
  .timeline-card { padding: 22px 20px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { flex: 1 1 100%; }
}