/* ============================================
   Qylle Quiño — Portfolio
   Minimalist, numbered-section design
   ============================================ */

:root {
  --bg: #fbfbfa;
  --bg-alt: #f2f1ee;
  --surface: #ffffff;
  --border: #e6e4de;
  --text: #17181a;
  --text-muted: #5b5d62;
  --text-faint: #9a9c9f;
  --accent: #1f6f5c;
  --accent-soft: #e4efec;
  --accent-contrast: #ffffff;
  --shadow: 0 1px 2px rgba(20, 20, 20, 0.04), 0 8px 24px rgba(20, 20, 20, 0.04);
  --radius: 14px;
  --max-width: 1080px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
  --bg: #101113;
  --bg-alt: #17181b;
  --surface: #17181b;
  --border: #2a2c30;
  --text: #ecece9;
  --text-muted: #a6a8ad;
  --text-faint: #6b6e73;
  --accent: #4fb897;
  --accent-soft: #17332b;
  --accent-contrast: #0c120f;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101113;
    --bg-alt: #17181b;
    --surface: #17181b;
    --border: #2a2c30;
    --text: #ecece9;
    --text-muted: #a6a8ad;
    --text-faint: #6b6e73;
    --accent: #4fb897;
    --accent-soft: #17332b;
    --accent-contrast: #0c120f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s ease, color 0.25s ease;
}

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

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.brand span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-links .num {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.75rem;
  margin-right: 4px;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.theme-toggle:hover { border-color: var(--accent); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  border: none;
  background: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ---------- Sections ---------- */
section { padding: 96px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 48px;
}

.section-num {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.section-title {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

.section-sub {
  color: var(--text-muted);
  max-width: 640px;
  margin: -32px 0 48px;
  font-size: 1.02rem;
}

/* ---------- Hero ---------- */
.hero {
  padding: 120px 0 80px;
  border-bottom: 1px solid var(--border);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.hero p.lede {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.hero-meta span { display: flex; align-items: center; gap: 6px; }

.hero-photo-wrap {
  position: relative;
  justify-self: center;
}

.hero-photo {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1 / 1.08;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-photo-tag {
  position: absolute;
  bottom: -16px;
  left: -16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  box-shadow: var(--shadow);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}
.btn-primary:hover { transform: translateY(-2px); }

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

.btn-sm { padding: 8px 14px; font-size: 0.8rem; }

/* ---------- About / Grid ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.about-grid p { color: var(--text-muted); margin: 0 0 16px; }

.about-grid p:last-child { margin-bottom: 0; }

.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.info-list li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  font-size: 0.92rem;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 16px;
}

.info-list li:last-child { border-bottom: none; padding-bottom: 0; }

.info-list .label {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding-top: 2px;
}

.info-list .value strong { display: block; }
.info-list .value small { color: var(--text-muted); }

/* ---------- Skills ---------- */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.skill-group h3 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  font-family: var(--mono);
  margin: 0 0 16px;
  font-weight: 600;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--surface);
}

/* ---------- Gears ---------- */
.gear-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gear-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.gear-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.gear-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.gear-label {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.gear-card strong {
  font-size: 1.02rem;
  font-family: var(--serif);
}

.gear-spec {
  color: var(--text-muted);
  font-size: 0.86rem;
}

/* ---------- Experience ---------- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
}

.timeline-date {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  padding-top: 4px;
}

.timeline-item h3 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.timeline-item .org {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 10px;
  display: block;
}

.timeline-item ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.timeline-item li { margin-bottom: 4px; }

/* ---------- Project Cards ---------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.card-index {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.78rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  margin: 0 0 10px;
  font-family: var(--serif);
}

.card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0 0 20px;
  flex-grow: 1;
}

.card .tag-list { margin-bottom: 20px; }

.card-link {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link .arrow { transition: transform 0.15s ease; }
.card:hover .card-link .arrow { transform: translate(3px, -3px); }

/* ---------- Contact / Footer ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
}

.contact-row:first-child { padding-top: 0; }

.contact-row .arrow { color: var(--text-faint); transition: transform 0.15s ease; }
.contact-row:hover .arrow { transform: translate(3px, -3px); color: var(--accent); }
.contact-row:hover { color: var(--accent); }

.site-footer {
  padding: 32px 0;
  color: var(--text-faint);
  font-size: 0.82rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Project detail page ---------- */
.project-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--mono);
  margin-bottom: 28px;
}
.back-link:hover { color: var(--accent); }

.project-hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

.project-hero .lede {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 700px;
  margin: 0 0 24px;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.project-body {
  padding: 56px 0;
}

.project-body h2 {
  font-family: var(--serif);
  font-size: 1.4rem;
  margin: 0 0 16px;
}

.project-body .prose {
  color: var(--text-muted);
  max-width: 760px;
  margin-bottom: 20px;
}

.project-body .prose strong { color: var(--text); }

.block { margin-bottom: 56px; }

.doc-frame-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.doc-frame-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.doc-frame {
  width: 100%;
  height: 720px;
  border: none;
  display: block;
  background: #fff;
}

.gallery-figure {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.gallery-figure img { width: 100%; }

.gallery-figure figcaption {
  padding: 14px 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.code-block {
  background: #0e1210;
  color: #d7e5df;
  border-radius: var(--radius);
  padding: 22px 24px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.65;
  border: 1px solid var(--border);
}

.code-block .cm { color: #6b8a7c; }

.stack-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.stack-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.85rem;
  background: var(--surface);
}

.stack-item strong { display: block; font-size: 0.9rem; margin-bottom: 2px; }
.stack-item span { color: var(--text-faint); font-size: 0.78rem; }

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 24px;
}

.next-project {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 40px 0;
}

.next-project .label {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 0.78rem;
  display: block;
  margin-bottom: 6px;
}

.next-project h3 { margin: 0; font-family: var(--serif); font-size: 1.3rem; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-photo-wrap { order: -1; }
  .hero-photo { max-width: 220px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .skill-groups { grid-template-columns: 1fr; }
  .gear-grid { grid-template-columns: 1fr 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
  section { padding: 64px 0; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 28px 28px;
    gap: 18px;
  }
  .doc-frame { height: 480px; }
  .next-project { flex-direction: column; align-items: flex-start; gap: 16px; }
}