/* (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary. */

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

body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  background: #f5f5f7;
  color: #1d1d1f;
  min-height: 100vh;
}

/* --- Navigation --- */

#nav {
  background: #fff;
  border-bottom: 1px solid #e5e5e7;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1d1d1f;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  text-decoration: none;
  color: #6e6e73;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.nav-link:hover {
  background: #f0f0f2;
  color: #1d1d1f;
}

.nav-link.active {
  background: #e8e8ed;
  color: #1d1d1f;
}

.nav-auth {
  display: flex;
  align-items: center;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.nav-avatar-placeholder {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #e5e5e7;
}

.nav-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: #1d1d1f;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Buttons --- */

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
  text-align: center;
}

.btn:hover {
  opacity: 0.9;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: #0071e3;
  color: #fff;
}

.btn-secondary {
  background: #e8e8ed;
  color: #1d1d1f;
}

.btn-small {
  padding: 0.35rem 0.75rem;
  border: none;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-small:hover {
  opacity: 0.85;
}

.btn-small.btn-primary {
  background: #0071e3;
  color: #fff;
}

.btn-small.btn-outline {
  background: transparent;
  color: #6e6e73;
  border: 1px solid #d2d2d7;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: #86868b;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.btn-icon:hover {
  color: #ff3b30;
  background: #fff0f0;
}

/* --- Generator page --- */

.generator-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  text-align: center;
}

.generator-page h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: #86868b;
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.generator-layout {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  align-items: stretch;
}

.swatches {
  display: flex;
  border-radius: 12px;
  overflow: hidden;
  height: 280px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  flex: 1;
}

.swatch {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 1rem 0.5rem;
  position: relative;
  transition: background-color 0.3s ease;
  cursor: pointer;
}

.swatch:hover {
  opacity: 0.9;
}

.swatch[draggable="true"] {
  cursor: grab;
}

.swatch.dragging {
  opacity: 0.35;
  cursor: grabbing;
}

.swatch.drag-over {
  box-shadow: inset 4px 0 0 rgba(255, 255, 255, 0.8);
}

.swatch.active {
  box-shadow: inset 0 -4px 0 rgba(255, 255, 255, 0.6);
}

.swatch.active.drag-over {
  box-shadow: inset 4px 0 0 rgba(255, 255, 255, 0.8), inset 0 -4px 0 rgba(255, 255, 255, 0.6);
}

.hex-label {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  pointer-events: none;
}

.swatch-delete {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.swatch:hover .swatch-delete {
  opacity: 1;
}

.swatch-delete:hover {
  background: rgba(255, 59, 48, 0.8);
}

.swatch-add {
  background: #e8e8ed;
  justify-content: center;
  align-items: center;
  min-width: 60px;
  flex: 0 0 60px;
}

.swatch-add:hover {
  background: #dcdce0;
  opacity: 1;
}

.swatch-add-icon {
  font-size: 1.75rem;
  font-weight: 300;
  color: #86868b;
}

/* --- Editor panel --- */

.editor-panel {
  width: 240px;
  flex-shrink: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  position: relative;
}

.editor-placeholder {
  color: #aeaeb2;
  font-size: 0.85rem;
}

.editor-panel .pickr {
  display: none;
}

.editor-panel .pcr-app {
  position: relative !important;
  box-shadow: none;
  background: transparent;
  width: 100%;
  padding: 0;
  border-radius: 0;
}

.generator-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.generator-actions .btn {
  min-width: 140px;
}

/* --- CSS snippet --- */

.css-snippet-section {
  max-width: 480px;
  margin: 0 auto;
  text-align: left;
}

.css-snippet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.css-snippet-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #6e6e73;
}

.css-snippet-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toggle-group {
  display: flex;
  border: 1px solid #d2d2d7;
  border-radius: 6px;
  overflow: hidden;
}

.toggle-btn {
  padding: 0.3rem 0.65rem;
  border: none;
  background: transparent;
  font-size: 0.75rem;
  font-weight: 600;
  color: #6e6e73;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.toggle-btn.active {
  background: #0071e3;
  color: #fff;
}

.toggle-btn:not(.active):hover {
  background: #f0f0f2;
}

.css-snippet-code {
  background: #1d1d1f;
  color: #e8e8ed;
  padding: 1rem 1.25rem;
  border-radius: 10px;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
}

/* --- Modal --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal {
  background: #fff;
  border-radius: 14px;
  padding: 2rem;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.modal-preview {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  height: 48px;
  margin-bottom: 1rem;
}

.mini-swatch {
  flex: 1;
}

.modal input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.75rem;
  border: 1px solid #d2d2d7;
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
}

.modal input[type="text"]:focus {
  border-color: #0071e3;
}

.modal-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: flex-end;
}

.modal-error {
  color: #ff3b30;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  min-height: 1.2em;
}

/* --- Generic page layout --- */

.page {
  max-width: 800px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.page h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.page .subtitle {
  margin-bottom: 2rem;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.page-header .subtitle {
  margin-bottom: 0;
}

.sort-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.sort-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: #86868b;
}

.sort-select {
  padding: 0.35rem 0.6rem;
  border: 1px solid #d2d2d7;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #1d1d1f;
  background: #fff;
  cursor: pointer;
  outline: none;
}

.sort-select:focus {
  border-color: #0071e3;
}

/* --- Palette grid --- */

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.palette-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.2s;
}

.palette-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.card-swatches {
  display: flex;
  height: 80px;
}

.card-swatch {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.65rem;
  font-weight: 600;
  cursor: pointer;

}

.card-footer {
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
}

.card-like-btn {
  background: none;
  border: none;
  font-size: 1rem;
  color: #86868b;
  cursor: pointer;
  padding: 0.25rem 0.4rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.15s, background 0.15s;
}

.card-like-btn:hover {
  color: #ff2d55;
  background: #fff0f3;
}

.card-like-btn.liked {
  color: #ff2d55;
}

.like-count {
  font-size: 0.8rem;
  font-weight: 600;
}

.card-like-count {
  font-size: 0.8rem;
  color: #ff2d55;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.card-name {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-author {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: #86868b;
}

.card-author-avatar {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  object-fit: cover;
}

/* --- Empty states --- */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 3rem 1.5rem;
  color: #86868b;
  text-align: center;
}

.empty-state .btn {
  margin-top: 0.5rem;
}

/* --- Unsupported / dev-login --- */

.unsupported {
  background: #fff3cd;
  color: #856404;
  padding: 0.75rem;
  border-radius: 8px;
  margin-top: 1rem;
  font-size: 0.85rem;
}

#dev-login {
  margin-top: 2rem;
}

/* --- Toasts --- */

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
  max-width: calc(100% - 3rem);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.9rem;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  color: #fff;
  font-size: 0.9rem;
  min-width: 240px;
  max-width: 400px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: auto;
}

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

.toast-leaving {
  opacity: 0;
  transform: translateY(8px);
}

.toast-message {
  flex: 1;
  line-height: 1.35;
}

.toast-close {
  background: transparent;
  border: none;
  color: inherit;
  opacity: 0.85;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  transition: opacity 0.15s, background 0.15s;
}

.toast-close:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.15);
}

.toast-success { background: #34c759; }
.toast-error   { background: #ff3b30; }
.toast-info    { background: #0071e3; }
.toast-warning { background: #ff9500; color: #1d1d1f; }

/* --- Responsive --- */

@media (max-width: 700px) {
  .nav-inner {
    padding: 0 1rem;
    gap: 1rem;
  }

  .nav-name {
    display: none;
  }

  .generator-layout {
    flex-direction: column;
  }

  .editor-panel {
    width: 100%;
    min-height: 80px;
  }

  .swatches {
    height: 200px;
    border-radius: 10px;
  }

  .hex-label {
    font-size: 0.65rem;
  }

  .generator-actions {
    flex-direction: column;
  }

  .generator-actions .btn {
    min-width: auto;
    width: 100%;
  }

  .palette-grid {
    grid-template-columns: 1fr;
  }

  .toast-container {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    max-width: none;
  }

  .toast {
    min-width: 0;
    max-width: none;
  }
}