/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #ffffff;
  --bg2:     #f7f7f7;
  --text:    #111111;
  --muted:   #666666;
  --border:  #e8e8e8;
  --accent:  #0057ff;
  --radius:  6px;
  --font:    'Inter', 'Segoe UI', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 56px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.15s;
}

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

/* Remove CTA special styling — plain link */
.nav-cta { color: var(--muted) !important; border: none !important; border-radius: 0 !important; padding: 0 !important; background: none !important; }
.nav-cta:hover { color: var(--text) !important; background: none !important; }

/* ===== LANG TOGGLE ===== */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.25rem 0.65rem;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.5px;
  transition: border-color 0.15s, color 0.15s;
}

.lang-toggle:hover {
  border-color: var(--text);
  color: var(--text);
}

.lang-sep { opacity: 0.35; }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 5rem;
}

.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
}

#hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1.0;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.hero-rule {
  width: 48px;
  height: 2px;
  background: var(--text);
  margin: 1.5rem auto;
}

.hero-tagline {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--muted);
  max-width: 480px;
  font-weight: 400;
  line-height: 1.75;
}

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

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2.5rem;
}

.btn-primary {
  padding: 0.7rem 1.75rem;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--text);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.2px;
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-secondary {
  padding: 0.7rem 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  background: transparent;
  cursor: pointer;
  transition: border-color 0.15s;
  letter-spacing: 0.2px;
}

.btn-secondary:hover { border-color: var(--text); }

.hero-stats {
  display: flex;
  gap: 4rem;
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  justify-content: center;
}

.stat { text-align: center; }

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== SECTIONS ===== */
section { position: relative; }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text);
}

.section-header p {
  color: var(--muted);
  max-width: 460px;
  margin: 0.6rem auto 0;
  font-size: 0.9rem;
}

/* ===== SERVICES ===== */
#services {
  padding: 7rem 2rem;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  max-width: 1100px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
}

.service-card {
  background: var(--bg);
  padding: 2rem;
  transition: background 0.15s;
}

.service-card:hover { background: var(--bg2); }

.service-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: block;
}

.service-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.2px;
}

.service-card p {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.7;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 1.2rem;
}

.tag {
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--bg2);
  letter-spacing: 0.2px;
}

/* Keep color-variant class names but unify them */
.tag-cyan, .tag-purple, .tag-green, .tag-pink { /* unified — same as .tag */ }

/* ===== WORKS ===== */
#works { padding: 7rem 2rem; }

.works-filters {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.35rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}

.filter-btn:hover { color: var(--text); border-color: var(--text); }

.filter-btn.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1px;
  max-width: 1100px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
}

.work-card {
  background: var(--bg);
  padding: 1.5rem;
  transition: background 0.15s;
  animation: fadeIn 0.3s ease both;
}

.work-card:hover { background: var(--bg2); }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.work-card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.work-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.work-meta { flex: 1; }

.work-category {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}

.work-date {
  font-size: 0.7rem;
  color: var(--muted);
  opacity: 0.7;
}

.work-card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  line-height: 1.45;
  letter-spacing: -0.2px;
}

.work-card p {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.65;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 1rem;
}

.work-tag {
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--bg2);
}

/* ===== ABOUT ===== */
#about {
  padding: 7rem 2rem;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-inner {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 4rem;
  align-items: start;
}

.about-avatar { display: flex; justify-content: center; }

.avatar-ring {
  width: 140px; height: 140px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  font-size: 3.5rem;
}

.avatar-inner { display: contents; }

.about-text h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 0.85rem;
}

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.25rem;
}

/* ===== CONTACT ===== */
#contact { padding: 7rem 2rem; text-align: center; }

.contact-card {
  max-width: 480px;
  margin: 0 auto;
}

.contact-card p {
  color: var(--muted);
  margin-bottom: 2rem;
  font-size: 0.9rem;
  line-height: 1.75;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  font-size: 0.85rem;
  background: var(--bg);
}

.contact-link:last-child { border-bottom: none; }

.contact-link:hover {
  background: var(--bg2);
  color: var(--accent);
}

.contact-link-icon { font-size: 1rem; }

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 1.75rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.2px;
}

footer strong { color: var(--text); font-weight: 700; }

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ===== MOBILE ===== */
@media (max-width: 700px) {
  nav { padding: 0 1.25rem; }
  .nav-links { display: none; }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .about-avatar { justify-content: center; }
  .about-skills { justify-content: center; }

  .hero-stats { gap: 2rem; }
  .services-grid { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; }
}

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--text);
  border-radius: 1px;
}

@media (max-width: 700px) { .hamburger { display: flex; } }