:root {
  --bg: #8a0020;
  --card: #fbe4e9;
  --card-text: #5a0014;
  --card-sub: #993556;
  --card-body: #72243e;
  --back-bg: #5a0014;
  --back-text: #fbe4e9;
  --back-link: #f4c0d1;
  --placeholder: rgba(251, 228, 233, 0.18);
  --placeholder-text: rgba(251, 228, 233, 0.7);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  font-family: 'Nunito', sans-serif;
  color: var(--card-text);
  padding: 28px 32px 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Header */
.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  min-height: 40px;
  margin-bottom: 6px;
}

.logo {
  grid-column: 2;
  justify-self: center;
  margin: 0;
  font-family: 'Playfair Display', san-serif;
  font-style: normal;
  font-weight: 500;
  font-size: 26px;
  letter-spacing: 3px;
  white-space: nowrap;
}

.logo a {
  color: var(--card);
  text-decoration: none;
}

.logo a:hover {
  color: var(--back-link);
}

.header-actions {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.add-company-btn {
  background: var(--back-link);
  color: var(--card-text);
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  display: inline-block;
}

.add-company-btn:hover {
  background: var(--card);
}

#tag-filter {
  background: var(--card);
  color: var(--card-text);
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.subtitle {
  text-align: center;
  color: var(--back-link);
  font-size: 13px;
  margin: 0 0 24px;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 1000px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 10px;
    min-height: 0;
  }

  .logo {
    grid-column: 1;
    font-size: 20px;
    letter-spacing: 2px;
  }

  .header-actions {
    grid-column: 1;
    justify-self: center;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

/* Card */
.card-slot {
  height: 170px;
  perspective: 900px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  transition: transform 0.5s;
  transform-style: preserve-3d;
}

.card-slot.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  padding: 12px 14px;
  box-sizing: border-box;
  backface-visibility: hidden;
  overflow: hidden;
}

.card-front {
  background: var(--card);
  display: flex;
  flex-direction: column;
}

.card-name {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 15px;
  color: var(--card-text);
  margin: 0 0 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-founder {
  font-size: 11px;
  font-weight: 700;
  color: var(--card-sub);
  margin: 0 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-desc {
  font-size: 11px;
  line-height: 1.4;
  color: var(--card-body);
  margin: 0;
  flex: 1;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
}

.card-tags {
  font-size: 10px;
  font-weight: 700;
  color: var(--card-sub);
  margin-top: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Back face */
.card-back {
  background: var(--back-bg);
  color: var(--back-text);
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.card-back .card-name {
  color: var(--back-text);
  font-size: 13px;
  margin-bottom: 2px;
}

.card-back a {
  font-size: 11px;
  color: var(--back-link);
  text-decoration: underline;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}

.card-back a:hover {
  color: var(--card);
}

.card-back .no-link {
  font-size: 11px;
  color: var(--back-link);
  font-style: italic;
}

.card-back .hint {
  font-size: 9px;
  color: rgba(251, 228, 233, 0.55);
  margin-top: 6px;
}

/* Placeholder card */
.card-placeholder {
  height: 100%;
  border-radius: 14px;
  background: var(--placeholder);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 11px;
  color: var(--placeholder-text);
  padding: 10px;
}

/* Focus visibility */
.card-inner:focus-visible {
  outline: 2px solid var(--card);
  outline-offset: 3px;
}

/* Add company form page */
.form-page {
  max-width: 480px;
  margin: 0 auto;
}

.company-form {
  background: var(--back-bg);
  border-radius: 14px;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
}

.company-form label {
  font-size: 12px;
  font-weight: 600;
  color: var(--back-link);
  margin-bottom: 4px;
}

.company-form .group-label {
  margin-top: 4px;
}

.company-form input,
.company-form textarea {
  width: 100%;
  box-sizing: border-box;
  background: var(--card);
  color: var(--card-text);
  border: none;
  border-radius: 6px;
  padding: 9px 11px;
  font-size: 13px;
  font-family: 'Nunito', sans-serif;
  margin-bottom: 12px;
}

.company-form textarea {
  resize: vertical;
}

.field-hint {
  font-size: 10px;
  color: var(--back-link);
  margin: -8px 0 12px;
}

.tag-row,
.link-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.tag-row input {
  margin-bottom: 0;
}

.link-row input:first-child {
  flex: 1;
}

.link-row input:last-child {
  flex: 1.4;
}

.link-row input {
  margin-bottom: 0;
}

.text-btn {
  background: none;
  border: none;
  color: var(--back-link);
  font-size: 12px;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  text-align: left;
  margin: 4px 0 16px;
}

.text-btn:hover {
  color: var(--card);
}

.text-btn:disabled {
  color: rgba(244, 192, 209, 0.4);
  text-decoration: none;
  cursor: default;
}

.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 4px;
}

.cancel-btn {
  background: none;
  border: 1px solid var(--back-link);
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 13px;
  color: var(--back-link);
  text-decoration: none;
  font-weight: 600;
}

.cancel-btn:hover {
  border-color: var(--card);
  color: var(--card);
}

.submit-btn {
  background: var(--back-link);
  border: none;
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--card-text);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
}

.submit-btn:hover {
  background: var(--card);
}

/* Result snippet */
.result-box {
  background: var(--card);
  border-radius: 14px;
  padding: 20px 24px;
  margin-top: 20px;
  color: var(--card-text);
}

.result-box h2 {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-weight: 500;
  font-size: 17px;
  margin: 0 0 8px;
}

.result-box p {
  font-size: 12px;
  line-height: 1.5;
  margin: 0 0 12px;
}

.result-box code {
  background: rgba(90, 0, 20, 0.08);
  padding: 1px 4px;
  border-radius: 4px;
  font-size: 11px;
}

.result-box pre {
  background: var(--bg);
  color: var(--card);
  border-radius: 8px;
  padding: 14px;
  font-size: 11px;
  overflow-x: auto;
  white-space: pre;
  margin: 0 0 10px;
}

/* Delete listing button (update-company page) */
.delete-btn {
  border-color: var(--back-link);
  color: var(--back-link);
  background: none;
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
}

.delete-btn:hover {
  border-color: var(--card);
  color: var(--card);
}

.delete-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

/* Footer */
.footer {
  margin: auto -32px 0;
  padding: 0 32px;
  background: var(--card);
  color: var(--card-text);
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
}

.footer a {
  color: var(--card-text);
  text-decoration: underline;
}

.footer a:hover {
  opacity: 0.7;
}

.footer p {
  font-size: 12px;
  margin: 4px 0 0;
}

.update-company-btn {
  background: none;
  border: 1px solid var(--back-bg);
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 13px;
  color: var(--back-bg);
  text-decoration: none;
  font-weight: 600;
}

.update-company-btn:hover {
  opacity: 0.8;
  cursor: pointer;
}

/* Change request checklist (update-company page) */
.check-item {
  margin-bottom: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--back-link);
  cursor: pointer;
  margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--card);
  margin: 0;
  cursor: pointer;
}

.checkbox-label:has(input:disabled) {
  opacity: 0.4;
  cursor: default;
}

.check-detail {
  margin: 8px 0 0 24px;
}

.check-detail input,
.check-detail textarea {
  margin-bottom: 8px;
}

.check-detail .field-hint {
  margin: 0 0 6px;
}