@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");

/* Shared Phase 1 baseline: retain these styles for the project detail pages. */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Pretendard", Arial, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: #111827;
  background: #f8fafc;
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e5e7eb;
}

.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: #4b5563;
}

.nav-links a:hover {
  color: #111827;
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.hero {
  padding: 96px 0 72px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #2563eb;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: 56px;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero h2 {
  margin: 12px 0 0;
  font-size: 28px;
  color: #374151;
  font-weight: 600;
}

.hero-desc {
  max-width: 820px;
  margin: 28px 0 0;
  font-size: 18px;
  line-height: 1.85;
  color: #374151;
  font-weight: 500;
  word-break: keep-all;
}

.hero-desc.sub {
  margin-top: 10px;
  font-size: 18px;
  color: #374151;
  font-weight: 500;
}

.hero-desc strong {
  color: #111827;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  background: #ffffff;
  transition: 0.15s ease;
}

button.btn {
  font-family: inherit;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: #111827;
}

.btn.primary {
  background: #111827;
  color: #ffffff;
  border-color: #111827;
}

.section {
  padding: 36px 0;
}

.section-title {
  margin-bottom: 20px;
}

.section-title p {
  margin: 0 0 4px;
  color: #2563eb;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title h2 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.education-grid {
  display: grid;
  gap: 16px;
}

.muted {
  color: #6b7280;
  margin-top: 8px;
}

.card,
.project-card,
.contact-card,
.timeline-item {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 18px 24px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
}

.subsection-title {
  margin: 22px 0 12px;
  font-size: 16px;
  font-weight: 800;
  color: #111827;
}

.card {
  padding: 16px 24px;
}

.card p {
  margin: 5px 0;
  color: #374151;
  font-weight: 400;
}

.card p + p {
  margin-top: 7px;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.skill-card {
  min-height: 125px;
}

.skill-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.skill-heading h3 {
  margin: 0;
}

.skill-logo-wrap {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.skill-logo {
  max-width: 38px;
  max-height: 38px;
  object-fit: contain;
}

.skill-card h3 {
  margin-bottom: 14px;
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-badges span {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
}

.highlight {
  margin-top: 10px;
  font-weight: 800;
  color: #111827;
}

.card .highlight {
  margin-top: 8px;
  font-weight: 800;
  color: #111827;
}

.education-list {
  display: grid;
  gap: 16px;
}

.education-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.education-content {
  flex: 1;
  min-width: 0;
}

.education-content h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
}

.education-body {
  margin-top: 18px;
}

.education-body p {
  margin: 6px 0;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 12px;
}

.card-top h3 {
  margin: 0 0 8px;
}

.logo-deepdive {
  max-width: 72px;
  max-height: 72px;
  border-radius: 14px;
}

.logo-wide {
  max-width: 78px;
  max-height: 44px;
}

.org-logo-wrap {
  width: 88px;
  height: 88px;
  border-radius: 18px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.org-logo {
  max-width: 68px;
  max-height: 68px;
  object-fit: contain;
  opacity: 0.95;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.project-tags span {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eff6ff;
  color: #1e3a8a;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.project-tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.project-tech-badges span {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.project-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.project-image {
  padding: 0;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  overflow: hidden;
  background: #f8fafc;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: 0.15s ease;
}

.project-image:hover {
  transform: translateY(-2px);
  border-color: #cbd5e1;
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
}

.project-image img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.project-image span {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid #e5e7eb;
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.86);
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  width: min(1500px, 96vw);
  max-height: 94vh;
  margin: 0;
  background: #ffffff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.35);
}

.lightbox-content img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 86vh;
  object-fit: contain;
  background: #f8fafc;
}

.lightbox-content figcaption {
  padding: 12px 16px;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
  border-top: 1px solid #e5e7eb;
}

.lightbox-close {
  position: fixed;
  top: 22px;
  right: 28px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 999px;
  background: #ffffff;
  color: #111827;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.main-image img {
  height: 240px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.metric-card {
  padding: 14px 16px;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
}

.metric-card strong {
  display: block;
  font-size: 21px;
  line-height: 1.2;
  color: #111827;
  margin-bottom: 4px;
}

.metric-card span {
  color: #6b7280;
  font-size: 13px;
  font-weight: 600;
}

.metric-note {
  margin: -10px 0 20px;
  color: #64748b;
  font-size: 13px;
  font-weight: 500;
}

.project-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border-radius: 999px;
  background: #111827;
  color: #ffffff !important;
  font-size: 14px;
  font-weight: 800;
}

.project-card {
  margin-bottom: 18px;
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.project-label {
  margin: 0 0 6px;
  color: #2563eb;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card h3 {
  margin: 0;
  font-size: 23px;
  letter-spacing: -0.03em;
}

.project-subtitle {
  margin: 6px 0 0;
  color: #6b7280;
  font-size: 15px;
}

.period {
  color: #6b7280;
  font-size: 14px;
  white-space: nowrap;
}

.project-desc {
  margin: 0 0 20px;
  color: #374151;
}

.project-desc.sub {
  margin-top: -18px;
  color: #374151;
}

.project-detail {
  display: grid;
  gap: 18px;
}

.project-detail h4 {
  margin: 0 0 6px;
  font-size: 15px;
}

.project-detail p {
  margin: 0;
  color: #374151;
}

.project-detail ul,
.timeline-item ul {
  margin: 0;
  padding-left: 20px;
  color: #374151;
}

.project-links {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.project-links a {
  color: #2563eb;
  font-weight: 700;
  font-size: 14px;
}

.project-links a:hover {
  text-decoration: underline;
}

.ctf-card {
  padding: 24px;
}

.ctf-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 16px;
}

.ctf-header h3 {
  margin: 0 0 6px;
  font-size: 22px;
}

.ctf-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: #111827;
  color: #ffffff;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.ctf-desc {
  margin: 0 0 20px;
  color: #374151;
}

.ctf-desc.sub {
  margin-top: -5px;
  color: #374151;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
}

.timeline-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.contact-card a {
  color: #2563eb;
  font-weight: 700;
}

.footer {
  border-top: 1px solid #e5e7eb;
  padding: 28px 24px;
  text-align: center;
  color: #6b7280;
  font-size: 14px;
}

.project-detail-hero {
  padding: 72px 0 36px;
}

.project-detail-hero h1 {
  margin: 0;
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.project-detail-hero h2 {
  margin: 12px 0 0;
  font-size: 24px;
  color: #374151;
  font-weight: 600;
}

.detail-tags {
  margin-top: 24px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.detail-list {
  margin: 12px 0 0;
  padding-left: 20px;
  color: #374151;
}

.detail-list li {
  margin-bottom: 6px;
}

.trouble-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
  margin-bottom: 18px;
}

.trouble-card h3 {
  margin: 0 0 18px;
  font-size: 21px;
  letter-spacing: -0.03em;
}

.trouble-block {
  padding: 16px 0;
  border-top: 1px solid #e5e7eb;
}

.trouble-block h4 {
  margin: 0 0 8px;
  font-size: 15px;
  color: #2563eb;
}

.trouble-block p {
  margin: 0;
  color: #374151;
}

.detail-note {
  margin-top: 14px;
}

.project-button.secondary {
  background: #ffffff;
  color: #111827 !important;
  border: 1px solid #d1d5db;
}

@media (max-width: 768px) {
  .nav {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero {
    padding: 64px 0 42px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero h2 {
    font-size: 22px;
  }

  .hero-desc {
    font-size: 17px;
  }

  .skill-grid {
    grid-template-columns: 1fr;
  }

  .project-header {
    flex-direction: column;
  }

  .period {
    white-space: normal;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .card-top {
    gap: 14px;
  }

  .org-logo {
    width: 52px;
    height: 52px;
  }

  .education-card {
    gap: 16px;
  }

  .education-body {
    margin-top: 16px;
  }

  .org-logo-wrap {
    width: 64px;
    height: 64px;
  }

  .org-logo {
    max-width: 48px;
    max-height: 48px;
  }
  
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-gallery {
    grid-template-columns: 1fr;
  }

  .project-image img {
    height: 220px;
  }

  .lightbox {
    padding: 16px;
  }

  .ctf-header {
    flex-direction: column;
  }

  .project-detail-hero {
    padding: 60px 0 36px;
  }

  .project-detail-hero h1 {
    font-size: 30px;
  }

  .project-detail-hero h2 {
    font-size: 20px;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }
}

/* Phase 1 redesign. All new rules are scoped to index.html. */
.portfolio-home {
  --bg: #0b0f14;
  --surface: #111820;
  --surface-hover: #161f29;
  --border: #263241;
  --text: #e6edf3;
  --text-secondary: #b9c3ce;
  --muted: #8b949e;
  --accent: #36c5b4;
  --accent-dim: rgba(54, 197, 180, .12);
  --display: "Space Grotesk", "Pretendard", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, Menlo, "Pretendard", monospace;
  background: var(--bg);
  background-image:
    linear-gradient(rgba(230, 237, 243, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 237, 243, .028) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--text);
  color-scheme: dark;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.portfolio-home ::selection {
  background: var(--accent);
  color: var(--bg);
}

.portfolio-home :focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

.portfolio-home [id] {
  scroll-margin-top: 104px;
}

.portfolio-home .skip-link {
  position: fixed;
  top: 10px;
  left: 20px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-160%);
}

.portfolio-home .skip-link:focus {
  transform: translateY(0);
}

.portfolio-home .site-header {
  background: rgba(11, 15, 20, .92);
  border-color: var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.portfolio-home .nav {
  max-width: 1200px;
  min-height: 76px;
  padding: 12px 32px;
  gap: 32px;
}

.portfolio-home .logo {
  font-size: 23px;
  letter-spacing: -.055em;
}

.portfolio-home .logo span,
.portfolio-home .accent {
  color: var(--accent);
}

.portfolio-home .nav-links {
  gap: 30px;
  color: var(--text-secondary);
  font-size: 13px;
}

.portfolio-home .nav-links a,
.portfolio-home .nav-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  transition: color .18s ease;
}

.portfolio-home .nav-links span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  transition: color .18s ease;
}

.portfolio-home .nav-links a[aria-current="location"],
.portfolio-home .nav-links a[aria-current="location"] span {
  color: var(--accent);
}

.portfolio-home .nav-github {
  font-size: 13px;
  font-weight: 600;
}

.portfolio-home .nav-links a:hover,
.portfolio-home .nav-github:hover {
  color: var(--accent);
}

.portfolio-home main {
  max-width: 1200px;
  padding: 0 32px 48px;
}

.portfolio-home .hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: center;
  gap: 64px;
  padding: 76px 0 64px;
}

.portfolio-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse 42% 60% at 70% 42%, rgba(54, 197, 180, .07), transparent 70%);
}

.portfolio-home .eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  font: 11px/1.5 var(--mono);
  letter-spacing: .11em;
  color: var(--text-secondary);
}

.portfolio-home .eyebrow > span:first-child {
  color: var(--accent);
}

.portfolio-home .hero-name {
  font-family: "Pretendard", sans-serif;
  color: var(--muted);
  letter-spacing: 0;
}

.portfolio-home .hero h1 {
  font-family: var(--display);
  font-size: clamp(53px, 5.45vw, 77px);
  font-weight: 700;
  line-height: .98;
  letter-spacing: -.04em;
}

.portfolio-home .hero-focus {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 0;
  margin: 25px 0 0;
  list-style: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.portfolio-home .hero-focus li {
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

.portfolio-home .hero-summary {
  margin: 22px 0 0;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.8;
  word-break: keep-all;
}

.portfolio-home .hero-actions {
  margin-top: 28px;
  gap: 10px;
}

.portfolio-home .btn {
  min-height: 44px;
  gap: 14px;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  transition: border-color .18s ease, background-color .18s ease, transform .18s ease;
}

.portfolio-home .btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.portfolio-home .btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: var(--surface-hover);
}

.portfolio-home .btn.primary:hover {
  background: var(--accent);
  background: color-mix(in srgb, var(--accent) 92%, var(--text));
}

.portfolio-home .profile-terminal {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
}

.portfolio-home .terminal-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
}

.portfolio-home .terminal-mark {
  width: 7px;
  height: 7px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.portfolio-home .terminal-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-size: 9px;
  letter-spacing: .08em;
  white-space: nowrap;
}

.portfolio-home .terminal-status {
  width: 4px;
  height: 4px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  opacity: .65;
}

.portfolio-home .terminal-body {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 26px;
}

.portfolio-home .terminal-body dt {
  color: var(--text);
}

.portfolio-home .terminal-body dt span {
  color: var(--accent);
}

.portfolio-home .terminal-body dd {
  margin: 4px 0 0 16px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.portfolio-home .terminal-footer {
  padding: 12px 26px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
}

.portfolio-home .terminal-footer span {
  margin-right: 8px;
  color: var(--accent);
}

.portfolio-home .section-index,
.portfolio-home .section-title > p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font: 11px/1.6 var(--mono);
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--accent);
}

.portfolio-home .section-index::before,
.portfolio-home .section-title > p::before {
  content: "";
  width: 16px;
  height: 2px;
  flex-shrink: 0;
  background: var(--accent);
  opacity: .7;
}

.portfolio-home .highlights {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
}

.portfolio-home .highlights-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
}

.portfolio-home .highlights .section-index {
  color: var(--accent);
  margin: 0;
}

.portfolio-home .strip-label {
  font: 9px/1.6 var(--mono);
  letter-spacing: .06em;
  color: var(--muted);
}

.portfolio-home .highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 0;
  border-radius: 0;
  background: transparent;
}

.portfolio-home .highlight-metric {
  position: relative;
  padding: 18px 24px;
  border-right: 1px solid var(--border);
}

.portfolio-home .highlight-metric::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  width: 18px;
  height: 2px;
  background: var(--accent);
  opacity: .55;
  pointer-events: none;
}

.portfolio-home .highlight-metric:last-child {
  border-right: 0;
}

.portfolio-home .highlight-metric p {
  margin: 0 0 8px;
  font: 10px/1.5 var(--mono);
  letter-spacing: .1em;
  color: var(--muted);
}

.portfolio-home .highlight-metric strong {
  display: block;
  font: 500 34px/1.2 var(--mono);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: -.06em;
}

.portfolio-home .highlight-metric strong span {
  margin-left: 3px;
  font-size: 22px;
  color: var(--muted);
}

.portfolio-home .highlight-metric .highlight-award {
  font-family: "Pretendard", sans-serif;
  font-size: 32px;
  font-weight: 650;
  line-height: 1.275;
  letter-spacing: -.035em;
}

.portfolio-home .highlight-metric > span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 12px;
  word-break: keep-all;
}

.portfolio-home .section {
  position: relative;
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.portfolio-home .section:not(.contact-section)::after {
  content: "";
  position: absolute;
  right: 20px;
  bottom: -3px;
  width: 8px;
  height: 6px;
  border-inline: 1px solid var(--muted);
  background: var(--bg);
  transform: skewX(-20deg);
  opacity: .6;
  pointer-events: none;
}

.portfolio-home .section-title {
  margin-bottom: 30px;
}

.portfolio-home .section-title h2 {
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -.04em;
  text-wrap: balance;
}

.portfolio-home .card,
.portfolio-home .project-card,
.portfolio-home .contact-card,
.portfolio-home .timeline-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: none;
}

.portfolio-home .card p,
.portfolio-home .project-desc,
.portfolio-home .project-desc.sub,
.portfolio-home .project-detail p,
.portfolio-home .project-detail ul,
.portfolio-home .timeline-item ul {
  color: var(--text-secondary);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.portfolio-home .card .muted,
.portfolio-home .muted,
.portfolio-home .period,
.portfolio-home .project-subtitle,
.portfolio-home .metric-note {
  color: var(--muted);
}

.portfolio-home .period {
  font-family: var(--mono);
  font-size: 12px;
}

.portfolio-home .project-card {
  position: relative;
  margin: 0 0 28px;
  padding: 32px;
  transition: border-color .18s ease;
}

.portfolio-home .project-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 22px;
  height: 22px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
  border-top-left-radius: 6px;
  opacity: .65;
  pointer-events: none;
}

.portfolio-home .project-card:last-child {
  margin-bottom: 0;
}

.portfolio-home .project-card:hover {
  border-color: var(--accent);
}

.portfolio-home .project-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  border-color: var(--border);
  padding-bottom: 22px;
  margin-bottom: 22px;
}

.portfolio-home .project-meta {
  display: grid;
  align-self: start;
  gap: 12px;
  margin: 0;
  padding-top: 2px;
}

.portfolio-home .project-meta dt {
  margin-bottom: 3px;
  color: var(--muted);
  font: 9px/1.5 var(--mono);
  letter-spacing: .08em;
}

.portfolio-home .project-meta dd {
  margin: 0;
  color: var(--text-secondary);
  font: 12px/1.7 var(--mono);
}

.portfolio-home .project-label {
  margin-bottom: 12px;
  font: 10px/1.6 var(--mono);
  letter-spacing: .08em;
  color: var(--accent);
}

.portfolio-home .project-card h3 {
  font-size: 28px;
  line-height: 1.25;
  font-weight: 650;
  letter-spacing: -.025em;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.portfolio-home .project-subtitle {
  margin-top: 10px;
  font-size: 14px;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.portfolio-home .project-tags,
.portfolio-home .project-tech-badges,
.portfolio-home .skill-badges {
  gap: 6px;
}

.portfolio-home .project-tags span,
.portfolio-home .project-tech-badges span,
.portfolio-home .skill-badges span {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: transparent;
  color: var(--text-secondary);
  font: 11px/1.55 var(--mono);
  overflow-wrap: anywhere;
}

.portfolio-home .project-tags span {
  background: var(--accent-dim);
  border-color: transparent;
}

.portfolio-home .project-desc {
  font-size: 15px;
}

.portfolio-home .project-gallery {
  gap: 16px;
  margin: 24px 0;
}

.portfolio-home .project-image {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  box-shadow: none;
  transition: transform .18s ease, border-color .18s ease;
}

.portfolio-home .project-image:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: none;
}

.portfolio-home .project-image img {
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.portfolio-home .project-image span {
  padding: 11px 13px;
  border-color: var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.portfolio-home .metric-grid {
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 3px;
  margin: 24px 0;
}

.portfolio-home .metric-card {
  padding: 16px 20px;
  border: 0;
  border-right: 1px solid var(--border);
  border-radius: 0;
  background: var(--bg);
}

.portfolio-home .metric-card:last-child {
  border-right: 0;
}

.portfolio-home .metric-card strong {
  margin-bottom: 6px;
  color: var(--text);
  font: 500 22px/1.4 var(--mono);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: -.05em;
  overflow-wrap: anywhere;
}

.portfolio-home .metric-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
}

.portfolio-home .project-card .project-detail {
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.65fr) minmax(0, 1fr);
  gap: 28px;
  padding-top: 4px;
  font-size: 14px;
}

.portfolio-home .project-detail h4 {
  margin-bottom: 12px;
  color: var(--muted);
  font: 11px/1.6 var(--mono);
}

.portfolio-home .project-detail li + li,
.portfolio-home .timeline-item li + li {
  margin-top: 6px;
}

.portfolio-home li::marker {
  color: var(--muted);
}

.portfolio-home .project-links {
  flex-wrap: wrap;
  gap: 12px 24px;
  padding-top: 20px;
  margin-top: 28px;
  border-top: 1px solid var(--border);
}

.portfolio-home .project-button,
.portfolio-home .project-button.secondary {
  gap: 10px;
  min-height: 44px;
  padding: 8px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--accent) !important;
  font: 12px/1.6 var(--mono);
  letter-spacing: .035em;
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
}

.portfolio-home .project-button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.portfolio-home .project-button.secondary {
  color: var(--text-secondary) !important;
}

.portfolio-home .project-links a:hover {
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
}

.portfolio-home .ctf-card {
  padding: 32px;
}

.portfolio-home .ctf-header {
  margin-bottom: 20px;
}

.portfolio-home .ctf-header h3 {
  font-size: 25px;
  font-weight: 650;
}

.portfolio-home .ctf-rank {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--accent-dim);
  color: var(--accent);
  font: 13px/1.5 var(--mono);
}

.portfolio-home .ctf-card .ctf-desc {
  margin: 0 0 10px;
  color: var(--text-secondary);
}

.portfolio-home .ctf-card .project-tech-badges {
  margin-top: 22px;
}

.portfolio-home .timeline,
.portfolio-home .education-list {
  gap: 0;
  padding-left: 24px;
  border-left: 1px solid var(--border);
}

.portfolio-home .timeline-item,
.portfolio-home .education-card {
  position: relative;
  padding: 28px 0;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
}

.portfolio-home .timeline-item:first-child,
.portfolio-home .education-card:first-child {
  padding-top: 0;
}

.portfolio-home .timeline-item:last-child,
.portfolio-home .education-card:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.portfolio-home .timeline-item::before,
.portfolio-home .education-card::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 37px;
  width: 9px;
  height: 9px;
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.portfolio-home .timeline-item:first-child::before,
.portfolio-home .education-card:first-child::before {
  top: 9px;
}

.portfolio-home .timeline-item {
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 32px;
  font-size: 14px;
}

.portfolio-home .experience-role {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.portfolio-home .timeline-item .period {
  margin: 8px 0 0;
}

.portfolio-home .about-intro {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 56px;
  margin-bottom: 36px;
}

.portfolio-home .about-intro h3 {
  margin: 0;
  font-size: 24px;
  font-weight: 650;
}

.portfolio-home .about-intro h3 span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
}

.portfolio-home .about-description {
  margin: 0 0 12px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.portfolio-home .about-description strong {
  color: var(--text);
  font-weight: 600;
}

.portfolio-home .subsection-title {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.portfolio-home .skill-grid {
  gap: 0 32px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
}

.portfolio-home .skill-card {
  min-height: 0;
  padding: 24px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
}

.portfolio-home .skill-heading {
  align-items: center;
  margin-bottom: 14px;
}

.portfolio-home .skill-heading h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.portfolio-home .skill-logo-wrap {
  width: 26px;
  height: 26px;
  border: 0;
  border-radius: 2px;
  background: transparent;
}

.portfolio-home .skill-logo {
  max-width: 24px;
  max-height: 24px;
  opacity: .8;
}

.portfolio-home .education-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
  gap: 32px;
}

.portfolio-home .education-content h3 {
  font-size: 17px;
  line-height: 1.55;
  font-weight: 600;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.portfolio-home .education-body {
  margin: 0;
  font-size: 14px;
}

.portfolio-home .education-body p:first-child {
  margin-top: 0;
}

.portfolio-home .card .highlight {
  color: var(--text);
  font-weight: 600;
}

.portfolio-home .org-logo-wrap {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
}

.portfolio-home .org-logo {
  width: auto;
  height: auto;
  max-width: 36px;
  max-height: 36px;
  border-radius: 0;
}

.portfolio-home .contact-section {
  border-bottom: 0;
}

.portfolio-home .contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0 24px;
  padding: 28px 32px;
}

.portfolio-home .contact-label {
  margin: 0 0 6px;
  font: 11px/1.6 var(--mono);
  color: var(--muted);
}

.portfolio-home .contact-card a {
  color: var(--text);
  font-weight: 500;
}

.portfolio-home .contact-card a:hover {
  color: var(--accent);
}

.portfolio-home .contact-email {
  font-size: clamp(20px, 2.8vw, 30px);
  letter-spacing: -.03em;
  overflow-wrap: anywhere;
}

.portfolio-home .contact-email span {
  color: var(--accent);
}

.portfolio-home .contact-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 13px;
}

.portfolio-home .copy-status {
  grid-column: 1 / -1;
  margin: 10px 0 0;
  color: var(--accent);
  font-size: 13px;
}

.portfolio-home .copy-status:empty {
  margin: 0;
}

.portfolio-home .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1136px;
  margin: 0 auto;
  padding: 24px 0;
  border-color: var(--border);
  color: var(--muted);
  font-size: 12px;
  text-align: left;
}

.portfolio-home .footer p {
  margin: 0;
}

.portfolio-home .footer a {
  flex-shrink: 0;
  padding: 10px 0;
}

.portfolio-home .footer a:hover {
  color: var(--accent);
}

/* Native modal: keyboard focus, Escape, and return focus are handled by dialog. */
.portfolio-home .lightbox {
  width: min(1280px, calc(100% - 32px));
  max-width: none;
  max-height: 92vh;
  max-height: 92dvh;
  padding: 0;
  margin: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

.portfolio-home .lightbox[open] {
  display: block;
}

.portfolio-home .lightbox::backdrop {
  background: rgba(3, 6, 9, .9);
}

.portfolio-home .lightbox-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font: 11px/1.6 var(--mono);
}

.portfolio-home .lightbox-close {
  position: static;
  width: 44px;
  height: 44px;
  background: var(--surface-hover);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  transition: transform .18s ease, border-color .18s ease, background-color .18s ease;
}

.portfolio-home .lightbox-close:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.portfolio-home .lightbox-content {
  width: 100%;
  max-height: none;
  background: var(--bg);
  border-radius: 0;
  box-shadow: none;
}

.portfolio-home .lightbox-content img {
  max-height: calc(92vh - 144px);
  max-height: calc(92dvh - 144px);
  background: var(--bg);
}

.portfolio-home .lightbox-content figcaption {
  color: var(--text-secondary);
  border-color: var(--border);
  font-weight: 400;
  font-size: 13px;
}

@media (max-width: 1100px) {
  .portfolio-home .hero {
    gap: 36px;
  }

  .portfolio-home .project-card .project-detail {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: 24px;
  }

  .portfolio-home .project-card .project-detail > div:last-child {
    grid-column: 1 / -1;
  }

  .portfolio-home .education-content {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 24px;
  }

  .portfolio-home .footer {
    margin: 0 32px;
  }
}

@media (max-width: 900px) {
  .portfolio-home .nav-links {
    gap: 20px;
  }

  .portfolio-home .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
    padding: 52px 0 44px;
  }

  .portfolio-home .hero h1 {
    font-size: 67px;
  }

  .portfolio-home .terminal-body {
    grid-template-columns: .75fr 1fr 1.25fr;
    gap: 20px;
    padding: 24px;
    font-size: 12px;
  }

  .portfolio-home .highlights-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portfolio-home .highlight-metric:nth-child(2) {
    border-right: 0;
  }

  .portfolio-home .highlight-metric:nth-child(-n + 2) {
    border-bottom: 1px solid var(--border);
  }

  .portfolio-home .about-intro {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 28px;
  }

  .portfolio-home .education-content {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .portfolio-home .contact-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 768px) {
  .portfolio-home .nav {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0 20px;
    padding: 8px 24px 4px;
    align-items: center;
  }

  .portfolio-home .nav-links {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0 16px;
  }

  .portfolio-home .nav-github {
    justify-self: end;
  }

  .portfolio-home main {
    padding: 0 24px 24px;
  }

  .portfolio-home [id] {
    scroll-margin-top: 124px;
  }

  .portfolio-home .section {
    padding: 52px 0;
  }

  .portfolio-home .project-card,
  .portfolio-home .ctf-card {
    padding: 24px;
  }

  .portfolio-home .project-header {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .portfolio-home .project-meta {
    grid-template-columns: auto auto;
    justify-content: start;
    gap: 24px;
  }

  .portfolio-home .project-card .project-detail {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .portfolio-home .metric-card:nth-child(2) {
    border-right: 0;
  }

  .portfolio-home .metric-card:nth-child(-n + 2) {
    border-bottom: 1px solid var(--border);
  }

  .portfolio-home .timeline-item,
  .portfolio-home .about-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .portfolio-home .timeline-item {
    gap: 16px;
  }

  .portfolio-home .footer {
    margin: 0 24px;
  }
}

@media (max-width: 540px) {
  .portfolio-home .nav {
    padding-inline: 20px;
  }

  .portfolio-home .nav-links {
    gap: 0 10px;
    font-size: 12px;
  }

  .portfolio-home .nav-links a {
    gap: 5px;
  }

  .portfolio-home .nav-links span {
    font-size: 9px;
  }

  .portfolio-home main {
    padding-inline: 20px;
  }

  .portfolio-home .hero {
    padding-top: 40px;
    gap: 28px;
  }

  .portfolio-home .hero h1 {
    font-size: clamp(42px, 13.5vw, 63px);
  }

  .portfolio-home .hero-focus {
    gap: 6px 12px;
    font-size: 12px;
    margin-top: 20px;
  }

  .portfolio-home .hero-summary {
    font-size: 16px;
  }

  .portfolio-home .hero-actions {
    gap: 8px;
  }

  .portfolio-home .hero-actions .btn {
    padding-inline: 11px;
    gap: 8px;
    font-size: 12px;
  }

  .portfolio-home .terminal-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    padding: 20px;
  }

  .portfolio-home .terminal-body > div {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 12px;
  }

  .portfolio-home .terminal-body dd {
    margin: 0;
  }

  .portfolio-home .terminal-footer {
    padding-inline: 20px;
  }

  .portfolio-home .highlights-header {
    padding-inline: 16px;
  }

  .portfolio-home .highlight-metric {
    padding: 16px;
  }

  .portfolio-home .highlight-metric::before {
    left: 16px;
  }

  .portfolio-home .highlight-metric strong {
    font-size: 29px;
  }

  .portfolio-home .highlight-metric .highlight-award {
    font-size: 27px;
  }

  .portfolio-home .highlight-metric > span {
    font-size: 11px;
  }

  .portfolio-home .section-title {
    margin-bottom: 24px;
  }

  .portfolio-home .project-card,
  .portfolio-home .ctf-card {
    padding: 20px 16px;
  }

  .portfolio-home .project-card h3 {
    font-size: 25px;
  }

  .portfolio-home .project-tags span,
  .portfolio-home .project-tech-badges span {
    font-size: 10px;
  }

  .portfolio-home .metric-card {
    padding: 14px 12px;
  }

  .portfolio-home .metric-card strong {
    font-size: 20px;
  }

  .portfolio-home .skill-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .portfolio-home .education-card {
    gap: 12px;
  }

  .portfolio-home .org-logo-wrap {
    width: 36px;
    height: 36px;
  }

  .portfolio-home .org-logo {
    max-width: 28px;
    max-height: 28px;
  }

  .portfolio-home .contact-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 24px 20px;
  }

  .portfolio-home .contact-actions {
    gap: 20px;
  }

  .portfolio-home .copy-status:empty {
    display: none;
  }

  .portfolio-home .footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-inline: 20px;
  }
}

/* Small, one-time entrances; no layout changes or scroll-controlled motion. */
@media (prefers-reduced-motion: no-preference) {
  .portfolio-home .hero .eyebrow,
  .portfolio-home .hero h1,
  .portfolio-home .hero-focus,
  .portfolio-home .hero-summary,
  .portfolio-home .hero-actions,
  .portfolio-home .profile-terminal {
    animation: portfolio-hero-enter .48s cubic-bezier(.22, 1, .36, 1) both;
  }

  .portfolio-home .hero h1 { animation-delay: 60ms; }
  .portfolio-home .hero-focus { animation-delay: 120ms; }
  .portfolio-home .hero-summary { animation-delay: 180ms; }
  .portfolio-home .hero-actions { animation-delay: 240ms; }
  .portfolio-home .profile-terminal { animation-delay: 300ms; }

  .portfolio-home .hero-actions:focus-within {
    animation: none;
  }

  .portfolio-home .reveal-target {
    transition: opacity .45s ease, transform .45s ease, border-color .18s ease;
  }

  .portfolio-home .reveal-pending {
    opacity: 0;
    transform: translateY(12px);
  }

  .portfolio-home .reveal-target:focus-within {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .portfolio-home .terminal-mark {
    animation: portfolio-prompt-blink 2.4s ease-in-out .8s 2;
  }
}

@keyframes portfolio-hero-enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@keyframes portfolio-prompt-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .55; }
}

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

  .portfolio-home *,
  .portfolio-home *::before,
  .portfolio-home *::after {
    transition: none !important;
    animation: none !important;
  }

  .portfolio-home .btn:hover,
  .portfolio-home .project-image:hover,
  .portfolio-home .project-button:hover,
  .portfolio-home .lightbox-close:hover {
    transform: none;
  }

  .portfolio-home .reveal-pending {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .portfolio-home .reveal-pending {
    opacity: 1;
    transform: none;
  }
}