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

:root {
  --bg: #0a0a0c;
  --surface: #141418;
  --surface-hover: #1c1c22;
  --border: #2a2a32;
  --text: #f4f4f6;
  --text-muted: #8b8b96;
  --accent: #7c6cff;
  --accent-soft: rgba(124, 108, 255, 0.15);
  --radius: 12px;
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 108, 255, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(124, 108, 255, 0.06), transparent);
}

body.is-ready .loader {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* Loader */
.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.loader__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  animation: loader-pulse 1.2s ease-in-out infinite;
}

@keyframes loader-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 1rem;
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.site-nav__link {
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.site-nav__link:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.site-nav__link.is-active {
  color: var(--text);
  background: var(--accent-soft);
  border-color: var(--accent);
}

.header__title {
  margin: 0 0 0.25rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header__subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Grid */
.main {
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 3rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Card */
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: #3a3a44;
  transform: translateY(-2px);
}

.card__preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  padding: 1.5rem 1rem;
  background: #0e0e11;
  overflow: hidden;
}

.card__preview--button {
  position: relative;
  min-height: 130px;
}

.card__preview--card,
.card__preview--nav,
.card__preview {
  position: relative;
}

.card__preview--button[data-hint]::before,
.card__preview--image[data-hint]::before,
.card__preview--card[data-hint]::before,
.card__preview--nav[data-hint]::before,
.card__preview[data-hint]::before {
  content: attr(data-hint);
  position: absolute;
  bottom: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.8;
  pointer-events: none;
  white-space: nowrap;
}

.card__preview--image {
  position: relative;
  min-height: 160px;
}

.card__media {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.card__text {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  text-align: center;
  line-height: 1.3;
  word-break: break-word;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border);
}

.card__name {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.card__actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.card__copy {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.65rem;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.card__copy:hover {
  color: var(--text);
  background: var(--surface-hover);
}

/* Code dialog */
.code-dialog {
  width: min(560px, calc(100vw - 2rem));
  max-height: 85dvh;
  margin: auto;
  padding: 0;
  overflow: hidden;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.code-dialog::backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.code-dialog__inner {
  display: flex;
  flex-direction: column;
  max-height: 85dvh;
  min-height: 0;
  overflow: hidden;
}

.code-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.code-dialog__title {
  margin: 0;
  font-size: 1rem;
}

.code-dialog__close {
  width: 2rem;
  height: 2rem;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
}

.code-dialog__tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem 1.25rem 0;
}

.code-dialog__tab {
  padding: 0.35rem 0.75rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.code-dialog__tab.is-active {
  color: var(--text);
  background: var(--accent-soft);
}

.code-dialog__pre {
  flex: 1 1 auto;
  min-height: 0;
  margin: 0.75rem 1.25rem;
  padding: 1rem;
  overflow: auto;
  overscroll-behavior: contain;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.6;
  background: #0e0e11;
  border-radius: 8px;
}

.code-dialog__code {
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
}

.code-dialog__copy-btn {
  margin: 0 1.25rem 1.25rem;
  padding: 0.65rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.code-dialog__copy-btn:hover {
  filter: brightness(1.1);
}

/* Code dialog — Files tab (Text / Buttons / Images / WebGL) */
.code-dialog__files {
  flex: 1 1 auto;
  min-height: 0;
  margin: 0.75rem 1.25rem;
  overflow: auto;
  overscroll-behavior: contain;
}

.code-dialog__files-intro {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.code-dialog__download-zip-btn {
  display: block;
  width: 100%;
  margin-bottom: 0.5rem;
  padding: 0.65rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.code-dialog__download-zip-btn:hover:not(:disabled) {
  filter: brightness(1.1);
}

.code-dialog__download-zip-btn:disabled {
  opacity: 0.7;
  cursor: wait;
}

.code-dialog__download-css-btn {
  display: block;
  width: 100%;
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.75rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.code-dialog__download-css-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.code-dialog__download-css-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.code-dialog__file-tree {
  margin: 0;
  padding: 0.65rem 0.85rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--text-muted);
  background: #0e0e11;
  border-radius: 8px;
  white-space: pre;
}

.code-dialog__file-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.code-dialog__file-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.5rem;
}

.code-dialog__file-btn {
  padding: 0.4rem 0.65rem;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.code-dialog__files-details {
  font-size: 0.8rem;
}

.code-dialog__files-details summary {
  cursor: pointer;
  color: var(--text-muted);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  z-index: 200;
  padding: 0.65rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transform: translateX(-50%) translateY(120%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s ease;
  pointer-events: none;
}

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

/* Shared char/word wrappers (structure only — animation in a