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

:root {
  --bg: #F2F0EB;
  --text: #111111;
  --text-secondary: #777777;
  --accent: #7C5CFC;
  --accent-light: #EDE9FF;
  --white: #FFFFFF;
  --dark: #111111;
  --border: rgba(0,0,0,0.08);
  --radius: 16px;
  --radius-lg: 24px;
  --nav-h: 72px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

em { font-style: normal; color: var(--accent); }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 100;
  transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
  background: rgba(242, 240, 235, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.nav-logo span {
  font-size: 13px;
  font-weight: 400;
  margin-left: 6px;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  background: var(--text) !important;
  color: var(--bg) !important;
  padding: 10px 20px;
  border-radius: 100px;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--accent) !important; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s;
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu ul { list-style: none; text-align: center; }
.mobile-menu ul li { margin: 24px 0; }
.mobile-menu ul a {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}
.mobile-menu ul a:hover { color: var(--accent); }

/* ===== SECTION LABELS ===== */
.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 40px;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 60px) 40px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-size: clamp(52px, 8.5vw, 120px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -3px;
  max-width: 900px;
  margin-bottom: 40px;
}

.hero-title .line {
  display: block;
  opacity: 0;
  animation: fadeUp 0.9s forwards;
}
.hero-title .line:nth-child(1) { animation-delay: 0.3s; }
.hero-title .line:nth-child(2) { animation-delay: 0.45s; }

.hero-sub {
  font-size: 16px;
  color: var(--text-secondary);
  opacity: 0;
  animation: fadeUp 0.8s 0.65s forwards;
  margin-bottom: 60px;
}

.hero-scroll {
  display: flex;
  align-items: center;
  gap: 16px;
  opacity: 0;
  animation: fadeUp 0.8s 0.85s forwards;
}
.hero-scroll span { font-size: 12px; color: var(--text-secondary); letter-spacing: 0.08em; }
.scroll-line {
  width: 60px;
  height: 1px;
  background: var(--text-secondary);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--accent);
  animation: scrollAnim 2s 1.2s infinite;
}

@keyframes scrollAnim {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Hero floating cards */
.hero-cards {
  position: absolute;
  right: 40px;
  bottom: 80px;
  display: flex;
  gap: 16px;
  align-items: flex-end;
  opacity: 0;
  animation: fadeUp 1s 1s forwards;
}

.hero-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 18px;
  width: 130px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transition: transform 0.3s;
}
.hero-card:hover { transform: translateY(-6px) !important; }

.card-1 { transform: rotate(-4deg) translateY(10px); }
.card-2 { transform: rotate(2deg); }
.card-3 { transform: rotate(-2deg) translateY(6px); }
.card-4 { transform: rotate(3deg) translateY(-4px); }

.card-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 8px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 12px;
}

.card-text {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

/* ===== ABOUT ===== */
.about {
  padding: 120px 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.about-tags span {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
}

.about-bio {
  font-size: 16px;
  line-height: 1.8;
  color: #444;
  margin-bottom: 16px;
}
.about-bio strong { color: var(--text); font-weight: 700; }

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat-num {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 4px;
}
.stat-label { font-size: 12px; color: var(--text-secondary); }

.about-photo-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--bg);
}
.about-photo-wrap img { width: 100%; height: 100%; object-fit: cover; }

.about-photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-secondary);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
}
.about-photo-placeholder span {
  font-size: 48px;
  font-weight: 900;
  color: #ddd;
}
.about-photo-placeholder p { font-size: 13px; }

/* ===== CAPABILITIES ===== */
.capabilities {
  padding: 120px 0;
  background: var(--dark);
  color: var(--white);
}

.capabilities .section-label { color: #666; }
.capabilities .section-title { color: var(--white); }

.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cap-card {
  background: #1A1A1A;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: background 0.3s, transform 0.3s;
  cursor: default;
}
.cap-card:hover {
  background: #222;
  transform: translateY(-4px);
}
.cap-card--wide {
  grid-column: span 4;
  display: flex;
  align-items: center;
  gap: 40px;
}
.cap-card--wide p { max-width: 600px; }

.cap-icon {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  font-family: 'Space Grotesk', monospace;
}
.cap-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.cap-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #888;
}
.cap-card--wide .cap-icon { font-size: 20px; flex-shrink: 0; margin-bottom: 0; }
.cap-card--wide h3 { flex-shrink: 0; margin-bottom: 0; margin-right: 0; }

/* ===== PROJECTS ===== */
.projects {
  padding: 120px 0;
}

.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.project-card {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 32px;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: default;
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}

.project-card--placeholder { opacity: 0.6; }

.project-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  font-family: 'Space Grotesk', monospace;
}

.project-platform {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 10px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 10px;
}

.project-name {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.project-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tags span {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.project-result {
  text-align: right;
  min-width: 100px;
}
.result-num {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -1.5px;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}
.result-label { font-size: 12px; color: var(--text-secondary); }

.projects-note {
  font-size: 12px;
  color: #bbb;
  text-align: center;
}

/* ===== WORKS ===== */
.works {
  padding: 120px 0;
  background: var(--white);
}

.works-intro {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: -20px;
  margin-bottom: 48px;
  max-width: 480px;
}

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

.work-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  position: relative;
}
.work-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.work-item:hover img { transform: scale(1.04); }

.work-item--placeholder {
  background: var(--bg);
  border: 2px dashed var(--border);
}
.work-placeholder-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-secondary);
}
.work-placeholder-inner span { font-size: 15px; font-weight: 700; }
.work-placeholder-inner p { font-size: 12px; color: #bbb; }

/* ===== CONTACT ===== */
.contact {
  padding: 120px 0;
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-title {
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.contact-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-email a {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
  transition: color 0.2s;
}
.contact-email a:hover { color: var(--accent); }

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--white);
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s;
}
.social-link:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}
.social-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

/* ===== GUESTBOOK ===== */
.guestbook {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
}

.guestbook h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}

.guestbook-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg);
  border: 1.5px solid transparent;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  resize: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-submit {
  width: 100%;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  margin-top: 8px;
}
.form-submit:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px;
  text-align: center;
}
.form-success span {
  width: 48px;
  height: 48px;
  background: #E8F5E9;
  color: #2E7D32;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}
.form-success p { font-size: 15px; color: var(--text-secondary); }
.form-success.visible { display: flex; }
.guestbook-form.hidden { display: none; }

/* ===== FOOTER ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-size: 14px;
  font-weight: 700;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-back a {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-back a:hover { color: var(--accent); }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-card--wide { grid-column: span 2; flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-cards { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .nav { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: calc(var(--nav-h) + 40px) 24px 60px; }
  .hero-title { letter-spacing: -2px; }

  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-right { order: -1; max-width: 280px; }

  .cap-grid { grid-template-columns: 1fr; }
  .cap-card--wide { grid-column: span 1; }

  .project-card {
    grid-template-columns: 40px 1fr;
    gap: 20px;
  }
  .project-result { display: none; }

  .works-grid { grid-template-columns: repeat(2, 1fr); }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .works-grid { grid-template-columns: 1fr; }
  .about-stats { gap: 24px; }
  .guestbook { padding: 28px 20px; }
}