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

:root {
  --bg-primary: #0b0e14;
  --bg-secondary: #111822;
  --bg-card: #161d2a;
  --bg-card-hover: #1c2536;
  --bg-glass: rgba(22, 29, 42, 0.75);
  --bg-input: #0d1117;
  --border: #1e293b;
  --border-light: #2d3b50;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent);
}

.logo h1 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.header-nav {
  display: flex;
  gap: 4px;
}

.nav-btn,
.nav-btn-logout {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.nav-btn:hover,
.nav-btn-logout:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.nav-btn.active {
  background: var(--accent);
  color: #fff;
}

/* ===== Main ===== */
.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ===== Search ===== */
.search-container {
  margin-bottom: 16px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

#search-input {
  width: 100%;
  padding: 14px 100px 14px 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#search-input::placeholder {
  color: var(--text-muted);
}

#search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-count {
  position: absolute;
  right: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

/* ===== Config Bar ===== */
.config-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

.config-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.config-input {
  padding: 6px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.85rem;
  width: 280px;
  outline: none;
  transition: border-color var(--transition);
}

.config-input:focus {
  border-color: var(--accent);
}

.config-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ===== Settings ===== */
.settings-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.settings-label strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.settings-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.settings-row .config-input {
  width: 320px;
  flex-shrink: 0;
}

/* ===== Icon Grid ===== */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}

.icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.icon-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  opacity: 0;
  transition: opacity var(--transition);
}

.icon-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.icon-card:hover::before {
  opacity: 0.06;
}

.icon-card img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.icon-card .icon-name {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.3;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Load More ===== */
.load-more-container {
  text-align: center;
  padding: 32px 0;
}

/* ===== Upload ===== */
.upload-area {
  margin-bottom: 32px;
}

.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px;
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.upload-dropzone:hover,
.upload-dropzone.drag-over {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

.upload-dropzone svg {
  color: var(--text-muted);
}

.drop-text {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.drop-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.uploaded-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.uploaded-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  transition: all var(--transition);
}

.uploaded-card:hover {
  border-color: var(--border-light);
}

.uploaded-card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.uploaded-card .upload-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  word-break: break-all;
  max-width: 100%;
}

.uploaded-card .upload-actions {
  display: flex;
  gap: 4px;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg-card-hover);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
}

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

.btn-sm.btn-danger:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ===== Buttons ===== */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.btn-copy {
  padding: 8px 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-copy:hover {
  background: #2563eb;
}

.btn-copy.copied {
  background: var(--success);
}

/* ===== Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.modal-body {
  padding: 32px;
}

.modal-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  margin-bottom: 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  min-height: 120px;
}

.modal-preview img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.modal-color {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid var(--border-light);
  flex-shrink: 0;
}

.color-hex {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.color-override {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.color-picker {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border-light);
  border-radius: 6px;
  cursor: pointer;
  background: none;
  padding: 0;
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 2px;
}

.color-picker::-webkit-color-swatch {
  border: none;
  border-radius: 3px;
}

.color-input {
  width: 85px;
  padding: 5px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  outline: none;
  transition: border-color var(--transition);
}

.color-input:focus {
  border-color: var(--accent);
}

.btn-reset-color {
  padding: 5px 10px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg-card-hover);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
  white-space: nowrap;
}

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

/* ===== Size Control ===== */
.modal-size {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.size-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.size-input {
  width: 75px;
  padding: 5px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  outline: none;
  text-align: center;
  transition: border-color var(--transition);
  -moz-appearance: textfield;
  appearance: textfield;
}

.size-input::-webkit-inner-spin-button,
.size-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.size-input:focus {
  border-color: var(--accent);
}

.size-unit {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.download-btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.download-btn-row .btn {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
  min-width: 130px;
  transition: all var(--transition);
}

.download-btn-row .btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.snippet-group {
  margin-bottom: 16px;
}

.snippet-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.snippet-row {
  display: flex;
}

.snippet-input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--text-primary);
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.82rem;
  outline: none;
  resize: none;
}

.snippet-textarea {
  min-height: 60px;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 2000;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}

.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state p {
  font-size: 1rem;
}

/* ===== Skeleton Loading ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.skeleton-card {
  height: 100px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  .logo h1 {
    display: none;
  }

  .main {
    padding: 16px;
  }

  .icon-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 8px;
  }

  .icon-card {
    padding: 12px 6px 8px;
  }

  .icon-card img {
    width: 32px;
    height: 32px;
  }

  .config-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .config-input {
    width: 100%;
  }

  .modal {
    max-width: 95vw;
  }

  .modal-body {
    padding: 20px;
  }
}

/* ===== Login Overlay ===== */
.login-overlay {
  display: flex;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--bg-primary);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-overlay.hidden {
  display: none !important;
}

.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 400px;
  padding: 32px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.login-box .form-group {
  display: flex;
  flex-direction: column;
}

.login-box label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.login-box .config-input {
  width: 100%;
}