/* ==========================================================================
   Inkline Brand Portal - Custom Styles
   Supplements TailwindCSS (CDN). Only includes styles Tailwind can't handle
   or that are more maintainable as plain CSS.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Custom Properties (Brand Tokens)
   -------------------------------------------------------------------------- */

:root {
  /* Brand Colors */
  --color-cerulean: #1399CC;
  --color-cobalt: #0057B8;
  --color-magenta: #E10098;
  --color-bubblegum: #FF66C9;
  --color-shamrock: #34AE17;
  --color-lime: #C5E600;
  --color-nearly-black: #101010;
  --color-medium-grey: #8E8E8E;
  --color-light-grey: #D3D3D6;

  /* Fonts */
  --font-primary: 'Inter Tight', sans-serif;
  --font-secondary: 'IBM Plex Serif', serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}


/* --------------------------------------------------------------------------
   2. Smooth Scrolling
   -------------------------------------------------------------------------- */

html {
  scroll-behavior: smooth;
}


/* --------------------------------------------------------------------------
   3. PDF Viewer
   -------------------------------------------------------------------------- */

.pdf-viewer {
  position: relative;
  overflow: hidden;
}

.pdf-viewer canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.pdf-page-spread {
  display: flex;
  justify-content: center;
  width: 100%;
}

.pdf-page-spread canvas {
  max-width: 100%;
  height: auto;
}


/* --------------------------------------------------------------------------
   4. Icon Grid
   -------------------------------------------------------------------------- */

.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 0.75rem;
}

.icon-grid-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0.5rem 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-light-grey);
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-fast);
}

.icon-grid-cell .icon-svg {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-grid-cell:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.icon-grid-cell .icon-svg svg {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.icon-grid-cell .icon-name {
  display: block;
  width: 100%;
  margin-top: 0.375rem;
  font-size: 0.625rem;
  color: var(--color-medium-grey);
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-grid-cell {
  position: relative;
}

.icon-style-badge {
  position: absolute;
  top: 3px;
  right: 4px;
  font-size: 0.5rem;
  font-weight: 600;
  color: var(--color-medium-grey);
  opacity: 0.5;
  line-height: 1;
  pointer-events: none;
}


/* --------------------------------------------------------------------------
   5a. Icon Modal Preview
   -------------------------------------------------------------------------- */

.icon-modal-preview {
  overflow: hidden;
}

.icon-modal-preview svg {
  display: block;
  max-width: 100%;
  max-height: 100%;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   5. Modal Overlay
   -------------------------------------------------------------------------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 16, 16, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  background: #fff;
  border-radius: 0.75rem;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.2);
  transform: translateY(24px);
  transition: transform var(--transition-base);
}

/* Brand book modal needs a larger max-width */
#brand-book-modal .modal-content {
  max-width: 72rem;
  max-height: 95vh;
}

/* PDF canvases inside modal should fill available height */
#brand-book-modal .pdf-viewer {
  display: flex;
  align-items: center;
  justify-content: center;
}

#brand-book-modal .pdf-page-spread {
  max-height: calc(95vh - 140px);
}

#brand-book-modal .pdf-page-spread canvas {
  max-height: calc(95vh - 160px);
  object-fit: contain;
}

.modal-backdrop.is-active .modal-content {
  transform: translateY(0);
}


/* --------------------------------------------------------------------------
   5b. Logo Preview — constrain inlined SVGs
   -------------------------------------------------------------------------- */

.logo-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  border-radius: 0.75rem;
  transition: background-color var(--transition-base);
}

.logo-preview svg {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}

.logo-preview--dark {
  background-color: var(--color-nearly-black);
}

.app-icon-sizes {
  padding: 0.75rem;
  border-radius: 1rem;
  transition: background-color var(--transition-base);
}

.app-icon-sizes.logo-preview--dark {
  background-color: var(--color-nearly-black);
}


/* --------------------------------------------------------------------------
   6. Color Swatch
   -------------------------------------------------------------------------- */

.color-swatch {
  position: relative;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-fast);
  border: 2px solid transparent;
}

.color-swatch--square {
  border-radius: 0.5rem;
}

.color-swatch:hover {
  transform: scale(1.08);
  box-shadow: 0 0 0 3px var(--color-cerulean);
}

.color-swatch.is-copied::after {
  content: 'Copied!';
  position: absolute;
  bottom: -1.75rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.625rem;
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--color-cerulean);
  white-space: nowrap;
  animation: swatch-copied-fade 1.2s ease forwards;
}

@keyframes swatch-copied-fade {
  0%   { opacity: 0; transform: translateX(-50%) translateY(4px); }
  20%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  80%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-4px); }
}


/* --------------------------------------------------------------------------
   7. Font Specimen
   -------------------------------------------------------------------------- */

.font-specimen {
  border: 1px solid var(--color-light-grey);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: border-color var(--transition-base);
}

.font-specimen:focus-within {
  border-color: var(--color-cerulean);
}

.font-specimen [contenteditable] {
  outline: none;
  min-height: 1.5em;
  caret-color: var(--color-cerulean);
}

.font-specimen [contenteditable]:empty::before {
  content: attr(data-placeholder);
  color: var(--color-medium-grey);
  pointer-events: none;
}


/* --------------------------------------------------------------------------
   8. Photo Gallery
   -------------------------------------------------------------------------- */

.photo-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.photo-gallery-item,
.photo-cell {
  position: relative;
  overflow: hidden;
  border-radius: 0.5rem;
  aspect-ratio: 4 / 3;
  cursor: pointer;
}

.photo-gallery-item img,
.photo-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.photo-gallery-item:hover img,
.photo-cell:hover img {
  transform: scale(1.05);
}

.photo-gallery-item::after,
.photo-cell::after {
  content: '';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 16, 16, 0.4);
  opacity: 0;
  transition: opacity var(--transition-base);
  /* Zoom icon via inline SVG background */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3Cline x1='11' y1='8' x2='11' y2='14'/%3E%3Cline x1='8' y1='11' x2='14' y2='11'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.photo-gallery-item:hover::after,
.photo-cell:hover::after {
  opacity: 1;
}


/* --------------------------------------------------------------------------
   9. Lightbox
   -------------------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 16, 16, 0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox.is-active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 0.25rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox-nav--prev { left: 1.5rem; }
.lightbox-nav--next { right: 1.5rem; }

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.25);
}


/* --------------------------------------------------------------------------
   10. Toast Notification
   -------------------------------------------------------------------------- */

.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 0.75rem 1.25rem;
  background: var(--color-nearly-black);
  color: #fff;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  border-radius: 0.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  animation: toast-in var(--transition-base) ease forwards;
}

.toast.is-leaving {
  animation: toast-out var(--transition-base) ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(12px) translateX(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0) translateX(0);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0) translateX(0);
  }
  to {
    opacity: 0;
    transform: translateY(8px) translateX(12px);
  }
}


/* --------------------------------------------------------------------------
   11. Custom Range Slider
   -------------------------------------------------------------------------- */

input[type="range"].brand-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--color-light-grey);
  border-radius: 2px;
  outline: none;
}

input[type="range"].brand-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-cerulean);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"].brand-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 2px 8px rgba(19, 153, 204, 0.4);
}

input[type="range"].brand-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-cerulean);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"].brand-slider::-moz-range-track {
  height: 4px;
  background: var(--color-light-grey);
  border-radius: 2px;
}


/* --------------------------------------------------------------------------
   12. Scrollbar Styling
   -------------------------------------------------------------------------- */

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-cerulean) transparent;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-cerulean);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-cobalt);
}


/* --------------------------------------------------------------------------
   13. Loading Skeleton
   -------------------------------------------------------------------------- */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-light-grey) 25%,
    #e8e8ea 37%,
    var(--color-light-grey) 63%
  );
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: 0.375rem;
}

@keyframes skeleton-pulse {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}


/* --------------------------------------------------------------------------
   14. Section Divider
   -------------------------------------------------------------------------- */

.section-divider {
  border: none;
  height: 1px;
  background: var(--color-cerulean);
  opacity: 0.3;
}


/* --------------------------------------------------------------------------
   15. Navigation - Active Section Indicator
   -------------------------------------------------------------------------- */

.nav-link {
  position: relative;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cerulean);
  border-radius: 1px;
  transition: width var(--transition-base);
}

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

.nav-link.is-active {
  color: var(--color-cerulean);
}


/* --------------------------------------------------------------------------
   16. Transition / Animation Utilities
   (Fills gaps not covered by Tailwind's defaults)
   -------------------------------------------------------------------------- */

.fade-in      { animation: fade-in var(--transition-base) ease forwards; }
.fade-out     { animation: fade-out var(--transition-base) ease forwards; }
.slide-up     { animation: slide-up var(--transition-base) ease forwards; }
.slide-down   { animation: slide-down var(--transition-base) ease forwards; }

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* --------------------------------------------------------------------------
   17. Responsive Adjustments
   -------------------------------------------------------------------------- */

@media (max-width: 640px) {
  /* Modal: full-width on small screens */
  .modal-content {
    width: 100%;
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  /* Lightbox: tighter padding, smaller nav */
  .lightbox img {
    max-width: 100vw;
    max-height: 80vh;
    border-radius: 0;
  }

  .lightbox-nav {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1rem;
  }

  .lightbox-nav--prev { left: 0.5rem; }
  .lightbox-nav--next { right: 0.5rem; }

  .lightbox-close {
    top: 0.75rem;
    right: 0.75rem;
  }

  /* Toast: full-width on mobile */
  .toast-container {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }

  /* Photo gallery: 2 columns minimum */
  .photo-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Icon grid: smaller cells */
  .icon-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.5rem;
  }
}