/* ==========================================
   极简清新设计师作品集 — 主站样式
   ========================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #FAFAF8;
  --color-surface: #FFFFFF;
  --color-text: #2C2C2C;
  --color-text-secondary: #888888;
  --color-text-light: #B0B0B0;
  --color-accent: #C4A882;
  --color-accent-light: #E8DDD0;
  --color-border: #ECECEC;
  --color-hover: #F5F3EF;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --max-width: 1200px;
  --nav-height: 64px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  display: block;
}

::selection {
  background: var(--color-accent-light);
  color: var(--color-text);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 5vw, 60px);
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  transition: var(--transition);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.nav-link:hover::after {
  width: 100%;
}

/* --- Hero --- */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 24px;
  position: relative;
}

.hero-inner {
  animation: fadeInUp 1s ease-out;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-tagline {
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 300;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Works Section --- */
.works {
  padding: 80px clamp(24px, 5vw, 60px);
  max-width: var(--max-width);
  margin: 0 auto;
}

.works-filter {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

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

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

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.work-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface);
  aspect-ratio: 4 / 3;
  group: true;
}

.work-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.work-card:hover .work-card-image {
  transform: scale(1.04);
}

.work-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(44, 44, 44, 0);
  transition: background 0.4s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}

.work-card:hover .work-card-overlay {
  background: rgba(44, 44, 44, 0.25);
}

.work-card-info {
  transform: translateY(10px);
  opacity: 0;
  transition: all 0.4s ease;
}

.work-card:hover .work-card-info {
  transform: translateY(0);
  opacity: 1;
}

.work-card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: #fff;
  margin-bottom: 4px;
}

.work-card-category {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

/* --- About Section --- */
.about {
  padding: 120px clamp(24px, 5vw, 60px);
  background: var(--color-surface);
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 60px;
  align-items: start;
}

.about-avatar-wrap {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-hover);
}

.about-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 20px;
}

.about-bio {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--color-text-secondary);
  white-space: pre-line;
}

/* --- Contact Section --- */
.contact {
  padding: 120px clamp(24px, 5vw, 60px);
  text-align: center;
}

.contact-inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 12px;
}

.contact-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

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

/* --- Footer --- */
.footer {
  text-align: center;
  padding: 40px 24px;
  font-size: 0.78rem;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
}

/* --- Modal --- */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal.open {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  position: relative;
  background: var(--color-surface);
  border-radius: 12px;
  max-width: 900px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.4s ease;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-hover);
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: var(--transition);
  z-index: 10;
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.modal-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.modal-images {
  position: relative;
  overflow: hidden;
  border-radius: 12px 0 0 12px;
  min-height: 400px;
  background: #f0f0f0;
}

.modal-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-info {
  padding: 40px;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 8px;
}

.modal-category {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.modal-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal-tag {
  padding: 4px 14px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .works-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .about-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .about-avatar-wrap {
    margin: 0 auto;
    width: 150px;
    height: 150px;
  }

  .modal-body {
    grid-template-columns: 1fr;
  }

  .modal-images {
    border-radius: 12px 12px 0 0;
    min-height: 250px;
  }

  .nav-links {
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 2rem;
  }

  .works-filter {
    gap: 4px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.7rem;
  }
}