/* ---- tokens ---- */
:root {
  --bg: #FFFFFF;
  --bg-alt: #F7F6FA;
  --surface: #F3F1F8;
  --surface-alt: #FAF9FC;
  --border: #EAE8F1;
  --ink: #2B2A28;
  --text-secondary: #5B564C;
  --text-muted: #9A94A8;
  --accent: #8A7CA8;
  --accent-text: #5A4E92;
  --accent-strong: #6F5F9E;

  --font-display: 'Work Sans', sans-serif;
  --font-body: 'Work Sans', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-text);
}

/* ---- layout shell ---- */
.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
}

/* ---- header / nav ---- */
header.site-header {
  border-bottom: 0.5px solid var(--border);
}

.nav-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 30px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink);
}

nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 16px;
  color: var(--text-secondary);
}

nav.primary-nav a:hover,
nav.primary-nav a.active { color: var(--accent-text); }

.nav-dropdown { position: relative; }

.nav-dropdown-menu {
  position: absolute;
  top: 26px;
  left: -12px;
  background: var(--bg);
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 8px 0;
  min-width: 150px;
  box-shadow: 0 8px 24px rgba(43,42,40,0.06);
  display: none;
  z-index: 20;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu { display: block; }

.nav-dropdown-menu a {
  display: block;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

.nav-dropdown-menu a:hover { color: var(--accent-text); background: var(--surface-alt); }

.lang-toggle {
  border: 0.5px solid var(--accent);
  color: var(--accent-text);
  border-radius: 14px;
  padding: 4px 12px;
  font-size: 12px;
  background: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.nav-icon {
  display: flex;
  align-items: center;
  color: var(--text-secondary);
}

.nav-icon:hover { color: var(--accent-text); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 760px) {
  nav.primary-nav { display: none; }
  .menu-toggle { display: block; }
  nav.primary-nav.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 0.5px solid var(--border);
    padding: 20px 40px;
    z-index: 30;
  }
  .nav-dropdown-menu { position: static; box-shadow: none; border: none; padding: 4px 0 0 12px; }
}

/* ---- hero ---- */
.hero {
  text-align: center;
  padding: 64px 0 48px;
}

.hero h1 {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 34px;
  letter-spacing: 0.01em;
  line-height: 1.3;
  color: var(--ink);
  max-width: 560px;
  margin: 0 auto 18px;
}

.hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto;
}

/* ---- section labels ---- */
.section-label {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 40px 0 32px;
}

/* ---- project grid / cards ---- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.project-grid--cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.project-grid--cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.project-grid--cols-3 .project-card,
.project-grid--cols-4 .project-card {
  aspect-ratio: 3 / 4;
}

@media (max-width: 760px) {
  .project-grid--cols-3,
  .project-grid--cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .project-grid--cols-3,
  .project-grid--cols-4 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .project-grid { grid-template-columns: 1fr 1fr; }
}

.project-card {
  background: var(--surface);
  border-radius: 2px;
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: flex-end;
  padding: 14px;
  transition: background 0.15s ease;
}

.project-card:hover { background: #ECE9F5; }

.project-card .tag {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--ink);
  display: block;
}

.project-card .title {
  font-size: 11px;
  color: var(--text-muted);
}

/* ---- project category intro ---- */
.category-intro {
  max-width: none;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 40px;
  text-align: justify;
}

/* ---- project detail ---- */
.detail-meta {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.detail-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 28px;
  color: var(--ink);
  margin: 0 0 14px;
}

.detail-description {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 22px;
  text-align: justify;
}

.detail-body {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 28px;
  text-align: justify;
}

.detail-image {
  background: var(--surface);
  border-radius: 2px;
  aspect-ratio: 16 / 10;
  max-width: 800px;
  margin: 28px 0 32px;
}

.detail-image-caption {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 0 28px;
}

.detail-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 800px;
  margin: 28px 0 8px;
}

.detail-gallery-frame {
  background: var(--surface);
  border-radius: 2px;
  aspect-ratio: 4 / 5;
}

.detail-carousel {
  position: relative;
  max-width: 800px;
  margin: 28px 0 32px;
}

.detail-carousel-viewport {
  overflow: hidden;
  border-radius: 2px;
}

.detail-carousel-track {
  display: flex;
  transition: transform 0.3s ease;
}

.detail-carousel-frame {
  flex: 0 0 100%;
  background: var(--surface);
  aspect-ratio: 16 / 10;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0.5px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.carousel-arrow:hover { background: var(--bg); color: var(--accent-text); }
.carousel-arrow--prev { left: 10px; }
.carousel-arrow--next { right: 10px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  padding: 0;
  cursor: pointer;
}

.carousel-dot.active { background: var(--accent); }

.detail-carousel-caption {
  display: none;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 10px;
}

.detail-carousel-caption.active { display: block; }

@media (max-width: 640px) {
  .detail-gallery { grid-template-columns: repeat(3, 1fr); gap: 8px; }
}

.detail-links {
  margin-top: 44px;
}

.detail-links a {
  display: block;
  color: var(--accent-text);
  font-size: 14px;
  margin-bottom: 16px;
}

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

.back-link {
  display: inline-block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.back-link:hover { color: var(--accent-text); }

/* ---- about page ---- */
.about-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  padding: 64px 0 36px;
}

@media (max-width: 640px) {
  .about-grid { grid-template-columns: 1fr; }
}

.about-photo {
  background: var(--surface);
  border-radius: 2px;
  aspect-ratio: 3 / 4;
}

.about-name {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--ink);
  margin: 0 0 12px;
}

.about-bio {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: justify;
}

.list-block {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin: 0 0 56px;
}

.cv-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.cv-columns > div:last-child {
  grid-column: 1 / -1;
  margin-top: 32px;
}

@media (max-width: 640px) {
  .cv-columns { grid-template-columns: 1fr; }
  .cv-columns > div:last-child { margin-top: 0; }
}

.cv-columns h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin: 0 0 10px;
}

.cv-columns p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* ---- contact page ---- */
.contact-hero {
  text-align: center;
  padding: 52px 0 8px;
}

.contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 26px;
  margin: 0 0 10px;
}

.contact-hero p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 400px;
  margin: 0 auto;
}

.contact-form {
  max-width: 420px;
  margin: 28px auto 0;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--surface-alt);
  border: 0.5px solid var(--border);
  border-radius: 2px;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--ink);
  font-family: var(--font-body);
  margin-bottom: 12px;
  resize: none;
}

.contact-form button {
  width: 100%;
  background: var(--accent);
  color: #F7F6FA;
  border: none;
  padding: 11px;
  border-radius: 2px;
  font-size: 13px;
  font-family: var(--font-body);
  cursor: pointer;
}

.contact-form button:hover { background: var(--accent-strong); }

.newsletter-box {
  max-width: 420px;
  margin: 38px auto 0;
  padding: 22px 24px;
  background: var(--surface);
  border-radius: 6px;
  text-align: center;
}

.newsletter-box h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  margin: 0 0 6px;
}

.newsletter-box p {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0 0 14px;
  line-height: 1.6;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  background: var(--surface-alt);
  border: 0.5px solid var(--border);
  border-radius: 2px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--ink);
  font-family: var(--font-body);
}

.newsletter-form button {
  background: var(--ink);
  color: var(--bg-alt);
  border: none;
  padding: 8px 16px;
  border-radius: 2px;
  font-size: 12px;
  font-family: var(--font-body);
  white-space: nowrap;
  cursor: pointer;
}

.contact-social {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  padding: 32px 0 0;
}

/* ---- footer ---- */
footer.site-footer {
  border-top: 0.5px solid var(--border);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 24px;
}

/* ---- focus visibility ---- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}