/* ═══════════════════════════════════════════════════════════════════════════
   GitSnip — Main Stylesheet
   Design tokens live in tokens.css — edit that file to change the theme.
   Accessibility: WCAG AA contrast, prefers-reduced-motion, focus-visible
   i18n-ready: no hard-coded strings in CSS
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

/* ── Base ──────────────────────────────────────────────────────────────────── */
html { font-size: var(--font-size-base); scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

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

/* ── Focus styles (accessible, visible) ────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
:focus:not(:focus-visible) { outline: none; }

/* ── Links ─────────────────────────────────────────────────────────────────── */
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-hover); text-decoration: underline; }

/* ════════════════════════ LAYOUT ══════════════════════════════════════════ */

/* ── Header / Nav ──────────────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--c-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--c-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.site-logo:hover { color: var(--c-primary); text-decoration: none; }
/* logo-icon: SVG image, black fill — invert to white in dark mode */
.site-logo .logo-icon {
  display: block;
  transition: filter var(--transition);
}
html[data-theme="dark"] .site-logo .logo-icon {
  filter: invert(1);
}
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .site-logo .logo-icon {
    filter: invert(1);
  }
}

.site-nav {
  display: flex;
  gap: 0.25rem;
}
.site-nav a {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.site-nav a:hover {
  color: var(--c-text);
  background: var(--c-surface);
  text-decoration: none;
}

/* ── Main ───────────────────────────────────────────────────────────────────── */
.site-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4rem 1rem;
  max-width: 680px;
  margin: 0 auto;
  width: 100%;
}

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  margin-bottom: 2.5rem;
  max-width: 560px;
  width: 100%;
}
.hero-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--c-text);
}
.hero-sub {
  color: var(--c-text-muted);
  font-size: 1rem;
}
.hero-sub code {
  font-family: var(--font-mono);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  color: var(--c-text);
}

/* ── Tool card ──────────────────────────────────────────────────────────────── */
.tool-card {
  width: 100%;
  max-width: 640px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* ── URL input area ─────────────────────────────────────────────────────────── */
.input-area {
  padding: 1.25rem;
}

.input-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.url-input {
  flex: 1;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  color: var(--c-text);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-width: 0;
  font-family: var(--font-body);
}
.url-input::placeholder { color: var(--c-placeholder); }
.url-input:hover  { border-color: var(--c-text-muted); }
.url-input:focus  { border-color: var(--c-border-focus); box-shadow: 0 0 0 3px var(--c-focus-ring); outline: none; }
.url-input:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-download {
  white-space: nowrap;
  padding: 0.5rem 1rem;
  background: var(--c-primary);
  color: #ffffff;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  line-height: 20px;
}
.btn-download:hover:not(:disabled)  { background: var(--c-primary-hover); }
.btn-download:active:not(:disabled) { opacity: 0.9; }
.btn-download:disabled { opacity: 0.55; cursor: not-allowed; }

/* ── Inline feedback zone ───────────────────────────────────────────────────── */
.feedback {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  min-height: 1.25rem;
}
.feedback-icon {
  flex-shrink: 0;
  font-size: 0.875rem;
  line-height: 1;
}
.feedback-msg { flex: 1; }

.feedback[data-type="valid"]   .feedback-icon,
.feedback[data-type="success"] .feedback-icon { color: var(--c-success); }
.feedback[data-type="valid"]   .feedback-msg,
.feedback[data-type="success"] .feedback-msg  { color: var(--c-success); }

.feedback[data-type="error"] .feedback-icon { color: var(--c-error); }
.feedback[data-type="error"] .feedback-msg  { color: var(--c-error); }

.feedback[data-type="loading"] .feedback-icon { color: var(--c-text-muted); }
.feedback[data-type="loading"] .feedback-msg  { color: var(--c-text-muted); }

.feedback-action {
  background: none;
  border: none;
  color: var(--c-primary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  white-space: nowrap;
}
.feedback-action:hover { text-decoration: underline; }

/* ── Spinner (CSS-only) ────────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; opacity: 0.6; }
}

/* ── Download button loading state ─────────────────────────────────────────── */
.btn-download[aria-busy="true"] {
  opacity: 0.7;
  cursor: not-allowed;
}

/* ── Token toggle link ──────────────────────────────────────────────────────── */
.tool-token {
  padding: 0 1.25rem;
  margin-top: 1rem;
}
.token-toggle-link {
  background: none;
  border: none;
  color: var(--c-text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition);
  font-family: inherit;
}
.token-toggle-link:hover { color: var(--c-primary); }
.tool-token .token-panel {
  margin-top: 0.5rem;
}

/* ── Alternative tip ───────────────────────────────────────────────────────── */
.tool-alternative {
  padding: 0.75rem 1.25rem 1.25rem;
}
.alt-tip {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}
.alt-tip-label {
  font-weight: 600;
  margin-right: 0.25rem;
}
.alt-tip code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: var(--c-primary);
  background: color-mix(in srgb, var(--c-primary) 8%, var(--c-bg));
  border: 1px solid color-mix(in srgb, var(--c-primary) 20%, var(--c-border));
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
}
.converted-url {
  margin-top: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-primary);
  word-break: break-all;
}

/* ── Copy domain button (inline in tip) ────────────────────────────────────── */
.copy-domain {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  font-size: inherit;
}
.copy-domain code {
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: var(--c-primary);
  background: color-mix(in srgb, var(--c-primary) 8%, var(--c-bg));
  border: 1px solid color-mix(in srgb, var(--c-primary) 20%, var(--c-border));
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  transition: background var(--transition), border-color var(--transition);
}
.copy-domain:hover code {
  background: color-mix(in srgb, var(--c-primary) 16%, var(--c-bg));
  border-color: var(--c-primary);
}
.copy-domain[data-copied] code {
  color: var(--c-success);
  border-color: var(--c-success);
  background: color-mix(in srgb, var(--c-success) 8%, var(--c-bg));
}

/* ── Power: Bookmarklet ────────────────────────────────────────────────────── */
.tool-power {
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px dashed var(--c-border);
  text-align: center;
}
.tool-power .bookmarklet-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.875rem;
  background: var(--c-surface);
  color: var(--c-text-muted);
  font-weight: 500;
  font-size: 0.8125rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  text-decoration: none;
  cursor: grab;
  user-select: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.tool-power .bookmarklet-btn:hover {
  background: var(--c-bg);
  border-color: var(--c-text-muted);
  color: var(--c-text);
  text-decoration: none;
}
.tool-power .bookmarklet-hint {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--c-text-muted);
}
/* Bookmarklet icon: invert in dark mode */
html[data-theme="dark"] .tool-power .bookmarklet-btn img { filter: invert(1); }
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .tool-power .bookmarklet-btn img { filter: invert(1); }
}

/* ── Theme toggle button (in header) ────────────────────────────────────────── */
.btn-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
  line-height: 0;
}
.btn-theme-toggle:hover { background: var(--c-surface); color: var(--c-text); }

/* ── Token panel ────────────────────────────────────────────────────────────── */
.token-panel {
  margin-top: 0.5rem;
  padding: 0.875rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.token-input-row {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.token-input {
  flex: 1;
  min-width: 0;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.5rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.token-input:focus { border-color: var(--c-border-focus); box-shadow: 0 0 0 3px var(--c-focus-ring); outline: none; }
.btn-token-clear {
  flex-shrink: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  font-size: 1rem;
  line-height: 1;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.btn-token-clear:hover { color: var(--c-text); border-color: var(--c-text-muted); }
.token-hint {
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: var(--c-text-muted);
}
.token-hint a { color: var(--c-primary); }



/* ── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--c-border);
  font-size: 0.75rem;
  color: var(--c-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.footer-tagline {
  color: var(--c-text-muted);
}
.footer-tagline code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-footer a { color: var(--c-text-muted); }
.site-footer a:hover { color: var(--c-primary); text-decoration: none; }
.footer-sponsor { color: var(--c-primary) !important; }

/* ── SR-only (visually hidden, screen reader accessible) ────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Ad slots ───────────────────────────────────────────────────────────────── */
.ad-slot {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 728px;
  margin: 0 auto;
  padding: 0.5rem 0;
  min-height: 90px;
}
.ad-slot[hidden] { display: none; }

.ad-slot-footer {
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--c-border);
}

.ad-slot-result {
  margin-top: 1rem;
  border-top: 1px solid var(--c-border);
  padding-top: 1rem;
}

/* ── Upgrade modal (triggered when file count exceeds tier limit) ─────────── */
.upgrade-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.upgrade-modal {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 90%;
  max-width: 420px;
  position: relative;
}

.upgrade-modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--c-text-muted);
  line-height: 1;
}

.upgrade-modal h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.upgrade-modal-count {
  color: var(--c-text-muted);
  margin-bottom: 1rem;
}

.upgrade-modal-tiers {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.upgrade-modal-tier {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  text-align: center;
  background: var(--c-surface);
}

.upgrade-modal-tier strong {
  display: block;
  margin-bottom: 0.25rem;
}

.upgrade-modal-tier span {
  font-size: 0.875rem;
  color: var(--c-text-muted);
}

.upgrade-modal-tier--pro {
  border-color: var(--c-primary);
  background: var(--c-surface-2);
}

.upgrade-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.upgrade-modal-actions .btn {
  display: block;
  text-align: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid var(--c-border);
  font-family: var(--font-body);
  transition: background var(--transition), border-color var(--transition);
}

.upgrade-modal-actions .btn--secondary {
  background: var(--c-surface);
  color: var(--c-text);
}
.upgrade-modal-actions .btn--secondary:hover {
  background: var(--c-surface-2);
}

.upgrade-modal-actions .btn--primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.upgrade-modal-actions .btn--primary:hover {
  background: var(--c-primary-hover);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 520px) {
  .site-header  { padding: 0.875rem 1rem; }
  .site-main    { padding: 2rem 0.75rem 3rem; }
  .site-nav a   { padding: 0.3rem 0.5rem; font-size: 0.8125rem; }
  .hero-title   { font-size: 1.5rem; }
  .input-row    { flex-direction: column; }
  .btn-download { width: 100%; justify-content: center; }
}