/* Open Graph preview tool — tokens align with manlung.work */

:root {
  --ink: #1a1a1a;
  --soft-ink: #555;
  --muted: #767676;
  --accent: #4b2e83;
  --line: #e8e8e8;
  --paper: #f5f4f1;
  --font-heading: "Instrument Serif", serif;
  --grain-svg: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.55'/%3E%3C/svg%3E");
  --slack-bg: #f8f8f8;
  --slack-border: #dddddd;
  --li-border: #e0e0e0;
  --x-bg: #fff;
  --x-border: #cfd9de;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.7;
  mix-blend-mode: multiply;
  background-image: var(--grain-svg);
  background-size: 180px 180px;
}

.og-tool-main {
  position: relative;
  z-index: 0;
  width: min(960px, 94vw);
  margin: 0 auto;
  padding: 5rem 0 3rem;
}

.og-tool-back {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition:
    color 160ms ease,
    border-color 160ms ease;
}

.og-tool-back:hover,
.og-tool-back:focus-visible {
  color: var(--accent);
  border-bottom-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.og-tool-header {
  margin-bottom: 2rem;
}

.og-tool-title {
  margin: 0 0 0.65rem;
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.2vw, 2.15rem);
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.og-tool-lead {
  margin: 0 0 0.75rem;
  max-width: 40rem;
  color: var(--soft-ink);
  line-height: 1.65;
  font-size: 1.02rem;
}

.og-tool-validator {
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
}

.og-tool-validator:hover,
.og-tool-validator:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.og-tool-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: stretch;
  margin-bottom: 1.75rem;
}

.og-tool-input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink);
}

.og-tool-input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 1px;
}

.og-tool-submit {
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.og-tool-submit:hover:not(:disabled),
.og-tool-submit:focus-visible:not(:disabled) {
  opacity: 0.92;
}

.og-tool-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.og-tool-note {
  margin: -0.5rem 0 1.75rem;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  max-width: 44rem;
}

.og-tool-status {
  margin-bottom: 1.25rem;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.5;
  display: none;
}

.og-tool-status.is-visible {
  display: block;
}

.og-tool-status.is-error {
  background: rgba(180, 60, 60, 0.08);
  color: #6b2222;
  border: 1px solid rgba(180, 60, 60, 0.2);
}

.og-tool-status.is-loading {
  background: rgba(75, 46, 131, 0.08);
  color: var(--soft-ink);
  border: 1px solid rgba(75, 46, 131, 0.15);
}

.og-tool-results {
  display: none;
}

.og-tool-results.is-visible {
  display: block;
}

.og-tool-section-label {
  margin: 2rem 0 0.65rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.og-tool-section-label:first-child {
  margin-top: 0;
}

/* Twitter / X summary_large_image */
.og-preview-x {
  max-width: 502px;
  border: 1px solid var(--x-border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--x-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.og-preview-x-media {
  aspect-ratio: 2 / 1;
  background: #e8ecf0;
  position: relative;
}

.og-preview-x-media .og-preview-media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.og-preview-media-fallback {
  display: none;
  margin: 0;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.og-preview-x-media.is-empty .og-preview-media-fallback,
.og-preview-li-media.is-empty .og-preview-media-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  inset: 0;
}

.og-preview-x-media.is-empty .og-preview-media-img,
.og-preview-li-media.is-empty .og-preview-media-img {
  display: none !important;
}

.og-preview-x-body {
  padding: 12px 14px 14px;
}

.og-preview-x-title {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
}

.og-preview-x-desc {
  margin: 0 0 6px;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--soft-ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.og-preview-x-domain {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
}

/* Slack unfurl */
.og-preview-slack {
  max-width: 480px;
  border: 1px solid var(--slack-border);
  border-radius: 6px 8px 8px 6px;
  border-left: 4px solid #e01e5a;
  background: var(--slack-bg);
  display: flex;
  gap: 12px;
  padding: 10px 12px;
  align-items: flex-start;
}

.og-preview-slack-thumb {
  flex: 0 0 80px;
  width: 80px;
  height: 80px;
  border-radius: 4px;
  overflow: hidden;
  background: #ddd;
}

.og-preview-slack-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.og-preview-slack-thumb.is-empty {
  display: none;
}

.og-preview-slack-text {
  min-width: 0;
  flex: 1;
}

.og-preview-slack-title {
  margin: 0 0 4px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #1264a3;
  line-height: 1.25;
  word-break: break-word;
}

.og-preview-slack-desc {
  margin: 0 0 6px;
  font-size: 0.8rem;
  color: #1d1c1d;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.og-preview-slack-domain {
  margin: 0;
  font-size: 0.72rem;
  color: #616061;
}

/* LinkedIn */
.og-preview-li {
  max-width: 502px;
  border: 1px solid var(--li-border);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.04);
}

.og-preview-li-media {
  aspect-ratio: 1.91 / 1;
  background: #eef3f8;
  position: relative;
  min-height: 0;
}

.og-preview-li-media .og-preview-media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.og-preview-li-media.is-empty {
  min-height: 120px;
}

.og-preview-li-body {
  padding: 12px 14px;
}

.og-preview-li-title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.9);
  line-height: 1.3;
}

.og-preview-li-desc {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: rgba(0, 0, 0, 0.6);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.og-preview-li-domain {
  margin: 0;
  font-size: 0.75rem;
  color: rgba(0, 0, 0, 0.55);
}

/* Raw tags */
.og-raw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.og-raw-table th,
.og-raw-table td {
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.og-raw-table th {
  width: 38%;
  font-weight: 600;
  color: var(--soft-ink);
  background: rgba(0, 0, 0, 0.03);
}

.og-raw-table tr:last-child th,
.og-raw-table tr:last-child td {
  border-bottom: none;
}

.og-raw-table td {
  word-break: break-word;
  color: var(--ink);
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, monospace;
  font-size: 0.78rem;
}

@media (max-width: 540px) {
  .og-preview-slack {
    flex-direction: column;
  }

  .og-preview-slack-thumb {
    width: 100%;
    height: 140px;
    flex: none;
  }

  .og-preview-slack-thumb.is-empty {
    display: none;
  }
}