/* Portfolio — editorial sidebar layout
   Matches the design-system handoff prototype pixel-for-pixel.
   Relies on CSS custom properties injected by theme.js.            */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--t-font-body);
  background: var(--t-surface);
  color: var(--t-text);
  -webkit-font-smoothing: antialiased;
  transition: background 300ms, color 300ms;
  overflow-x: hidden;
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 64px;
  border-right: 1px solid var(--t-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  z-index: 100;
  background: var(--t-surface);
  transition: background 300ms;
}

.sidebar-logo {
  font-family: var(--t-font-heading);
  font-weight: 900;
  font-size: 15px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  letter-spacing: 0.04em;
  color: var(--t-primary);
  cursor: pointer;
  text-decoration: none;
  transition: color 200ms;
  background: none;
  border: none;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.sidebar-link {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  border-radius: 8px;
  color: var(--t-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  transition: color 200ms, background 200ms;
  background: none;
  border: none;
  font-family: var(--t-font-body);
  text-decoration: none;
}
.sidebar-link:hover,
.sidebar-link.active { color: var(--t-cta); }

.sidebar-bottom {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}

.icon-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--t-muted);
  background: none; border: none;
  border-radius: 8px;
  transition: color 200ms;
}
.icon-btn:hover { color: var(--t-cta); }

/* ── Main layout ── */
.main { margin-left: 64px; min-height: 100vh; }

/* ── Top strip ── */
.top-strip {
  border-bottom: 1px solid var(--t-border);
  padding: 14px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t-muted);
  font-family: var(--t-font-body);
}

/* ── Hero ── */
.hero {
  padding: 64px 48px 48px;
  border-bottom: 1px solid var(--t-border);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: end;
}

.hero-name {
  font-family: var(--t-font-heading);
  font-weight: 900;
  font-size: clamp(72px, 9vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--t-primary);
}
.hero-name .accent { color: var(--t-cta); }

.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 24px;
  padding-bottom: 8px;
}

.hero-role {
  font-family: var(--t-font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t-cta);
}

.hero-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--t-secondary);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

/* ── Keyword strip ── */
.keyword-strip {
  border-bottom: 1px solid var(--t-border);
  padding: 16px 48px;
  display: flex; gap: 32px; align-items: center;
}
.keyword-strip span {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--t-muted);
  font-family: var(--t-font-body);
  display: flex; align-items: center; gap: 12px;
}
.kw-dot {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--t-border); display: inline-block;
}

/* ── Info grid ── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--t-border);
}
.info-cell {
  padding: 32px 40px;
  border-right: 1px solid var(--t-border);
}
.info-cell:last-child { border-right: none; }
.info-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--t-muted);
  margin-bottom: 8px; font-family: var(--t-font-body);
}
.info-value {
  font-family: var(--t-font-heading);
  font-weight: 700; font-size: 18px; color: var(--t-primary);
}

/* ── Section header ── */
.section-header {
  padding: 40px 48px 32px;
  border-bottom: 1px solid var(--t-border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.section-title {
  font-family: var(--t-font-heading);
  font-weight: 900;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.03em;
  color: var(--t-primary);
}
.section-count {
  font-family: var(--t-font-code, "IBM Plex Mono", monospace);
  font-size: 13px;
  color: var(--t-muted);
}
.section-link {
  background: none; border: none; cursor: pointer;
  color: var(--t-cta); font-family: var(--t-font-body);
  font-size: 13px; font-weight: 600; letter-spacing: 0.04em;
  text-decoration: none;
}

/* ── Project rows ── */
.project-row {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 24px 48px;
  border-bottom: 1px solid var(--t-border);
  cursor: pointer;
  transition: background 200ms;
}
.project-row:hover { background: rgba(37,99,235,0.04); }
.project-row:hover .project-arrow { opacity: 1; transform: translateX(0); }
.project-row:hover .project-name { color: var(--t-cta); }
.project-num {
  font-family: var(--t-font-code, "IBM Plex Mono", monospace);
  font-size: 11px;
  color: var(--t-muted);
}
.project-info { display: flex; align-items: baseline; gap: 20px; flex-wrap: wrap; }
.project-name {
  font-family: var(--t-font-heading);
  font-weight: 700; font-size: 20px; color: var(--t-primary);
  transition: color 200ms;
}
.project-desc { font-size: 14px; color: var(--t-secondary); }
.project-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.tag {
  font-size: 10px; font-weight: 700; padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid var(--t-border);
  color: var(--t-secondary);
  font-family: var(--t-font-body);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.project-arrow {
  opacity: 0; transform: translateX(-6px);
  transition: all 200ms;
  color: var(--t-cta);
}

/* ── Blog rows ── */
.blog-row {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 24px;
  align-items: baseline;
  padding: 28px 48px;
  border-bottom: 1px solid var(--t-border);
  cursor: pointer;
  transition: background 200ms;
  text-decoration: none;
}
.blog-row:hover { background: rgba(37,99,235,0.04); }
.blog-row:hover .blog-title { color: var(--t-cta); }
.blog-title {
  font-family: var(--t-font-heading);
  font-weight: 700; font-size: 19px; color: var(--t-primary);
  line-height: 1.3; margin-bottom: 6px;
  transition: color 200ms;
}
.blog-excerpt { font-size: 13px; color: var(--t-secondary); line-height: 1.55; }
.blog-date {
  font-family: var(--t-font-code, "IBM Plex Mono", monospace);
  font-size: 11px; color: var(--t-muted); text-align: right;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.about-left {
  padding: 64px 48px;
  border-right: 1px solid var(--t-border);
}
.about-right {
  padding: 64px 48px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.about-photo {
  width: 160px; height: 160px;
  border-radius: 3px; object-fit: cover;
  margin-bottom: 24px;
  display: block;
}
.about-label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--t-cta);
  margin-bottom: 16px; font-family: var(--t-font-body);
}
.about-heading {
  font-family: var(--t-font-heading);
  font-weight: 900;
  font-size: clamp(32px, 4vw, 44px);
  letter-spacing: -0.03em;
  color: var(--t-primary);
  line-height: 1.05;
  margin-bottom: 28px;
}
.about-body {
  font-size: 17px; line-height: 1.7;
  color: var(--t-secondary);
}
.fact-row {
  padding: 16px 0;
  border-top: 1px solid var(--t-border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.fact-label {
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--t-muted);
  font-family: var(--t-font-body);
}
.fact-value {
  font-size: 14px; font-weight: 600; color: var(--t-primary);
  font-family: var(--t-font-body); text-align: right;
}

/* ── Contact ── */
.contact-section {
  padding: 80px 48px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 64px;
  border-top: 1px solid var(--t-border);
}
.contact-left { flex: 1; }
.contact-label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--t-cta);
  margin-bottom: 16px; font-family: var(--t-font-body);
}
.contact-headline {
  font-family: var(--t-font-heading);
  font-weight: 900;
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.03em;
  color: var(--t-primary);
  line-height: 1.0;
  margin-bottom: 24px;
}
.contact-sub {
  font-size: 16px; color: var(--t-secondary);
  line-height: 1.65; max-width: 380px;
}
.contact-right {
  display: flex; flex-direction: column; gap: 16px;
  padding-top: 8px; min-width: 200px;
}
.contact-link {
  display: flex; align-items: center; gap: 12px;
  color: var(--t-secondary); text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: color 200ms;
  padding: 12px 0;
  border-bottom: 1px solid var(--t-border);
  font-family: var(--t-font-body);
}
.contact-link:hover { color: var(--t-cta); }
.contact-link:last-child { border-bottom: none; }

/* ── CTA button ── */
.cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--t-cta); color: white;
  padding: 14px 28px; border-radius: 6px;
  font-family: var(--t-font-body); font-weight: 600; font-size: 15px;
  text-decoration: none; margin-top: 32px;
  transition: opacity 200ms, transform 200ms;
  cursor: pointer; border: none;
}
.cta-btn:hover { opacity: 0.88; transform: translateY(-1px); }

/* ── Secondary button ── */
.btn-outline {
  background: none; border: 1px solid var(--t-border);
  color: var(--t-secondary);
  padding: 10px 20px; border-radius: 6px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: var(--t-font-body);
  transition: all 200ms; text-decoration: none;
}
.btn-outline:hover {
  border-color: var(--t-primary);
  color: var(--t-primary);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--t-border);
  padding: 20px 48px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--t-muted); font-family: var(--t-font-body);
}
.footer a {
  color: var(--t-muted); text-decoration: none;
  transition: color 200ms;
}
.footer a:hover { color: var(--t-cta); }

/* ── Page sections (hidden by default, shown by JS) ── */
.page-section { display: none; }
.page-section.active { display: block; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero-right { order: -1; }
  .hero-photo { max-width: 280px; aspect-ratio: 4/5; }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .info-cell:nth-child(2) { border-right: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-left { border-right: none; border-bottom: 1px solid var(--t-border); }
  .contact-section { flex-direction: column; gap: 32px; }
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .top-strip { padding: 14px 24px; }
  .hero { padding: 48px 24px 32px; }
  .hero-name { font-size: clamp(48px, 12vw, 72px); }
  .keyword-strip { padding: 16px 24px; gap: 16px; flex-wrap: wrap; }
  .info-grid { grid-template-columns: 1fr 1fr; }
  .info-cell { padding: 20px 24px; }
  .section-header { padding: 32px 24px 24px; }
  .project-row { padding: 20px 24px; grid-template-columns: 32px 1fr auto; gap: 16px; }
  .blog-row { padding: 20px 24px; grid-template-columns: 1fr auto; }
  .about-left, .about-right { padding: 40px 24px; }
  .contact-section { padding: 48px 24px; }
  .footer { padding: 20px 24px; }

  /* Show mobile nav */
  .mobile-nav { display: flex !important; }
}

@media (max-width: 480px) {
  .info-grid { grid-template-columns: 1fr; }
  .info-cell { border-right: none; border-bottom: 1px solid var(--t-border); }
  .info-cell:last-child { border-bottom: none; }
  .project-row { grid-template-columns: 1fr; }
  .project-num { display: none; }
  .project-arrow { display: none; }
  .blog-row { grid-template-columns: 1fr; }
  .blog-date { text-align: left; }
}

/* ── Mobile nav bar (hidden on desktop) ── */
.mobile-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--t-surface);
  border-top: 1px solid var(--t-border);
  padding: 8px 0;
  justify-content: space-around;
  align-items: center;
}
.mobile-nav button {
  background: none; border: none; cursor: pointer;
  color: var(--t-muted); font-size: 9px; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  font-family: var(--t-font-body);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 6px 12px; transition: color 200ms;
}
.mobile-nav button.active,
.mobile-nav button:hover { color: var(--t-cta); }

/* Dark mode icon toggle */
.dark .icon-sun { display: block; }
.dark .icon-moon { display: none; }