/* ============================================================
   dcdjr.me — main stylesheet
   1. Tokens        2. Base          3. Nav
   4. Layout        5. Hero          6. About
   7. Projects      8. Experience    9. Skills
   10. Contact      11. Footer       12. Motion
   13. Responsive
   ============================================================ */

/* ─── 1. Tokens ─────────────────────────────────────────── */
:root {
  --bg: #0b0b0c;
  --surface: #141416;
  --border: #232326;
  --border-strong: #333338;
  --text: #e7e7e4;
  --muted: #8e8e89;
  --faint: #6b6b68;
  --accent: #f59e0b;
  --accent-soft: rgba(245, 158, 11, 0.12);
  --accent-glow: rgba(245, 158, 11, 0.25);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Figtree', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 4px;
  --max-w: 1040px;
  --pad-x: clamp(1.25rem, 5vw, 3rem);
  --nav-h: 56px;
}

/* ─── 2. Base ───────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Subtle amber glow anchoring the top of the page */
body::before {
  content: '';
  position: fixed;
  inset: 0 0 auto;
  height: 480px;
  background: radial-gradient(ellipse 70% 100% at 50% -20%, var(--accent-soft), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

::selection {
  background: var(--accent-soft);
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

a {
  color: inherit;
}

h1,
h2 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

strong {
  color: var(--text);
  font-weight: 600;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  z-index: 999;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #000;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-decoration: none;
  transition: top 0.15s;
}

.skip-link:focus {
  top: 0.75rem;
}

/* ─── 3. Nav ────────────────────────────────────────────── */
nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad-x);
  background: rgba(11, 11, 12, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-logo::after {
  content: '.';
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.9rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--accent);
}

/* ─── 4. Layout ─────────────────────────────────────────── */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--nav-h) var(--pad-x) 0;
}

section {
  padding: 5.5rem 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type {
  border-bottom: none;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.75rem;
}

.section-label::after {
  content: '';
  height: 1px;
  width: 3rem;
  background: linear-gradient(90deg, var(--accent-glow), transparent);
}

/* ─── 5. Hero ───────────────────────────────────────────── */
#hero {
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 7rem 0 6rem;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.hero-name {
  font-size: clamp(2.1rem, 5vw, 3.9rem);
  max-width: 24ch;
  margin-bottom: 1.75rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.75rem;
  list-style: none;
}

.pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  padding: 0.35em 0.8em;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  padding: 0.7em 1.4em;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.2s, background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  font-weight: 500;
}

.btn-primary:hover {
  background: #fbbf24;
  border-color: #fbbf24;
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn-ghost {
  color: var(--muted);
}

.btn-ghost:hover {
  color: var(--text);
  background: var(--surface);
}

/* ─── 6. About ──────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.about-text {
  font-size: 0.97rem;
  color: var(--muted);
  line-height: 1.9;
}

.about-text p + p {
  margin-top: 1.1rem;
}

.about-details {
  display: grid;
  gap: 1.25rem;
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.detail-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.25rem;
}

.detail-value {
  font-size: 0.92rem;
  font-weight: 500;
}

/* ─── 7. Projects ───────────────────────────────────────── */
.project-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding: 1.75rem 1.25rem;
  margin: 0 -1.25rem;
  border-top: 1px solid var(--border);
  border-radius: var(--radius);
  transition: background 0.2s;
}

.project-item:last-child {
  border-bottom: 1px solid var(--border);
}

.project-item:hover {
  background: var(--surface);
}

.project-title-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.project-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.project-item:hover .project-name {
  color: var(--accent);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted);
  padding: 0.2em 0.6em;
  border: 1px solid var(--border);
  border-radius: 2px;
}

.project-desc {
  font-size: 0.91rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 66ch;
}

.project-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  white-space: nowrap;
  color: var(--faint);
  text-decoration: none;
  padding: 0.4em 0.8em;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  transition: color 0.2s, border-color 0.2s;
}

.project-link:hover {
  color: var(--accent);
  border-color: var(--accent-glow);
}

/* ─── 8. Experience & Competitions ──────────────────────── */
.exp-list {
  display: grid;
  gap: 2.5rem;
}

.exp-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
}

.exp-time {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--faint);
  padding-top: 0.25rem;
}

.exp-role {
  font-size: 0.95rem;
  font-weight: 600;
}

.exp-org {
  font-size: 0.84rem;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.exp-desc {
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.65;
  max-width: 62ch;
}

/* ─── 9. Skills ─────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem 3rem;
}

.skill-label {
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.7rem;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  padding: 0.3em 0.7em;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}

.chip.hi {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent-glow);
}

/* ─── 10. Contact ───────────────────────────────────────── */
#contact {
  text-align: center;
  padding-bottom: 6.5rem;
}

#contact .section-label {
  justify-content: center;
}

#contact .section-label::before {
  content: '';
  height: 1px;
  width: 3rem;
  background: linear-gradient(270deg, var(--accent-glow), transparent);
}

.contact-heading {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 1rem;
}

.contact-sub {
  font-size: 0.97rem;
  color: var(--muted);
  max-width: 48ch;
  margin: 0 auto 0.5rem;
}

.contact-email {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  color: var(--faint);
  text-decoration: none;
  margin-bottom: 2.25rem;
  transition: color 0.2s;
}

.contact-email:hover {
  color: var(--accent);
}

.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ─── 11. Footer ────────────────────────────────────────── */
footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem var(--pad-x);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy,
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--faint);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  text-decoration: none;
  transition: color 0.15s;
}

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

/* ─── 12. Motion ────────────────────────────────────────── */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#hero > * {
  opacity: 0;
  animation: fade-up 0.5s ease forwards;
}

.hero-name    { animation-delay: 0.1s; }
.hero-pills   { animation-delay: 0.2s; }
.hero-cta     { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  #hero > * {
    animation: none;
    opacity: 1;
  }
}

/* ─── 13. Responsive ────────────────────────────────────── */
@media (max-width: 640px) {
  :root {
    --pad-x: 1.15rem;
  }

  nav {
    justify-content: center;
  }

  .nav-links {
    display: none;
  }

  section {
    padding: 3.75rem 0;
  }

  #hero {
    min-height: auto;
    padding: 4.5rem 0 4rem;
    align-items: center;
    text-align: center;
  }

  .hero-pills,
  .hero-cta {
    justify-content: center;
  }

  .section-label {
    margin-bottom: 2rem;
  }

  .about-grid,
  .skills-grid,
  .exp-item {
    grid-template-columns: 1fr;
  }

  .about-grid {
    gap: 2.25rem;
  }

  .exp-item {
    gap: 0.35rem;
  }

  .exp-time {
    padding-top: 0;
  }

  .project-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .project-link {
    justify-self: start;
  }
}