/* ==========================================================================
   ARTISAN 视觉设计工坊 - 基础与通用样式 (Style System)
   ========================================================================== */

:root {
  --color-bg: #F8F7F2;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F2EFE8;
  --color-dark: #16181D;
  --color-dark-surface: #22252C;
  --color-text-main: #1D2026;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;

  --color-primary: #D95338;       /* Terracotta Accent */
  --color-primary-hover: #C24329;
  --color-primary-light: #FBF0ED;

  --color-accent: #2A5C4D;        /* Forest Emerald */
  --color-gold: #C89234;          /* Warm Gold */

  --color-border: #E2DFD5;
  --color-border-dark: #2E323B;

  --shadow-sm: 0 2px 6px rgba(22, 24, 29, 0.04);
  --shadow-md: 0 6px 20px rgba(22, 24, 29, 0.07);
  --shadow-lg: 0 12px 36px rgba(22, 24, 29, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Header Navbar Component
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 247, 242, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.96);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--color-dark);
}

.brand-badge {
  background-color: var(--color-dark);
  color: #FFF;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-dark);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.header-search {
  flex: 1;
  max-width: 320px;
  position: relative;
}

.header-search input {
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 10px 16px 10px 40px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  transition: var(--transition);
}

.header-search input:focus {
  border-color: var(--color-dark);
  box-shadow: 0 0 0 3px rgba(22, 24, 29, 0.08);
}

.header-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.825rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFF;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 4px 12px rgba(217, 83, 56, 0.25);
}

.btn-dark {
  background-color: var(--color-dark);
  color: #FFF;
}

.btn-dark:hover {
  background-color: #2D313B;
}

.btn-outline {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-main);
}

.btn-outline:hover {
  border-color: var(--color-dark);
  background-color: var(--color-surface-hover);
}

.user-avatar-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  position: relative;
}

.user-avatar-btn img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 220px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  display: none;
  z-index: 120;
}

.user-dropdown-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.user-dropdown-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.user-dropdown-email {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--color-text-main);
}

.user-dropdown-item:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-primary);
}

.user-dropdown-divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 6px 0;
}

.mobile-toggle {
  display: none;
  font-size: 1.25rem;
  color: var(--color-dark);
  padding: 8px;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  z-index: 99;
}

.mobile-nav .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

/* ==========================================================================
   Footer Component
   ========================================================================== */

.site-footer {
  background-color: var(--color-dark);
  color: #E5E7EB;
  padding: 64px 0 32px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .brand-logo {
  color: #FFF;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  max-width: 320px;
  margin-bottom: 24px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-dark-surface);
  border: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #D1D5DB;
  font-size: 0.9rem;
}

.social-link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFF;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFF;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: #FFF;
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--color-text-light);
}

/* ==========================================================================
   Card Component for Works
   ========================================================================== */

.work-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #D2CEC0;
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #EFECE6;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: rgba(22, 24, 29, 0.75);
  backdrop-filter: blur(4px);
  color: #FFF;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.card-actions-overlay {
  position: absolute;
  inset: 0;
  background: rgba(22, 24, 29, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: var(--transition);
}

.work-card:hover .card-actions-overlay {
  opacity: 1;
}

.card-action-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #FFF;
  color: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card-action-btn:hover {
  background-color: var(--color-primary);
  color: #FFF;
  transform: scale(1.1);
}

.card-content {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.author-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.author-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

.card-stats {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-stat {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Modal Popup */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(22, 24, 29, 0.7);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-container {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  padding: 32px;
  animation: modalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.modal-close:hover {
  background-color: var(--color-dark);
  color: #FFF;
}

/* Toast Message */
.toast-message {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--color-dark);
  color: #FFF;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  z-index: 300;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast-message.show {
  transform: translateY(0);
  opacity: 1;
}

/* Utility Tag */
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Responsive Rules */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links, .header-search {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .header-inner {
    height: 64px;
    gap: 8px;
  }
  .brand-logo {
    min-width: 0;
    flex: 1 1 auto;
  }
  .brand-logo > span:not(.brand-badge) {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .header-actions {
    flex: 0 0 auto;
    gap: 8px;
  }
  #indexFilterTabs {
    width: 100%;
    max-width: 100%;
    flex-wrap: wrap;
  }
}

@media (max-width: 420px) {
  .container {
    padding-left: 12px;
    padding-right: 12px;
  }
  .header-inner {
    gap: 5px;
  }
  .brand-logo {
    gap: 6px;
    font-size: 0.95rem;
  }
  .brand-logo .fa-shapes,
  .runtime-site-logo {
    width: 24px;
    height: 24px;
    flex: 0 0 auto;
  }
  .brand-badge,
  .header-actions > .btn {
    display: none;
  }
  .header-actions,
  .guest-auth {
    gap: 4px;
    white-space: nowrap;
  }
  .guest-auth a {
    font-size: 0.78rem;
  }
  .guest-auth a:last-child {
    padding: 6px 8px;
  }
  .user-avatar-btn {
    gap: 0;
    padding: 3px;
  }
  .user-avatar-btn > .fa-chevron-down {
    display: none;
  }
  .user-avatar-btn img,
  .user-avatar-btn .runtime-avatar-letter {
    width: 28px;
    height: 28px;
  }
  .mobile-toggle {
    padding: 6px;
  }
  .mobile-nav {
    top: 64px;
  }
}

html.runtime-pending body {
  visibility: hidden;
}

.site-context {
  display: none !important;
}

.runtime-site-logo {
  width: 30px;
  height: 30px;
  object-fit: contain;
  border-radius: 6px;
}

.runtime-avatar-letter {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  flex: 0 0 auto;
}

.runtime-avatar-large {
  width: 48px;
  height: 48px;
  font-size: 1rem;
}

.runtime-avatar-profile {
  width: 72px;
  height: 72px;
  border: 2px solid var(--color-gold);
  font-size: 1.4rem;
}

.guest-auth {
  display: flex;
  align-items: center;
  gap: 8px;
}

.guest-auth a {
  color: var(--color-text-main);
  font-size: 0.875rem;
  font-weight: 700;
}

.guest-auth a:last-child {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
}

.runtime-state {
  grid-column: 1 / -1;
  padding: 36px 20px;
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: var(--color-surface);
}

.runtime-state.is-error,
.form-status.is-error {
  color: var(--color-primary);
}

.runtime-image-empty {
  display: flex;
  min-height: 220px;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-hover);
  color: var(--color-text-light);
}

.detail-image-empty {
  min-height: 480px;
}

.runtime-card-summary {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.footer-links span {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  overflow-wrap: anywhere;
}

.form-status {
  min-height: 20px;
  margin: 8px 0;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.toast-message.is-error {
  background: #9f2f25;
}