/* ===== ERAS Headshot Requirements Checker — styles.css ===== */
/* No frameworks. Plain CSS. Mobile-first responsive. */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #d8dde3;
  --border-light: #e8ecef;
  --text: #1a1a2e;
  --text-muted: #5b6573;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --green: #16a34a;
  --green-bg: #ecfdf5;
  --red: #dc2626;
  --red-bg: #fef2f2;
  --amber: #d97706;
  --amber-bg: #fffbeb;
  --radius: 10px;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

/* ===== HEADER ===== */
.tool-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1rem;
  text-align: center;
}

.tool-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.tool-header .subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ===== TOOL SECTION ===== */
.tool-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1rem 2rem;
}

/* ===== UPLOAD ZONE ===== */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
  background: var(--surface);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}

.upload-icon {
  color: var(--text-muted);
  margin: 0 auto 0.75rem;
  display: block;
}

.upload-prompt p {
  color: var(--text);
}

.upload-prompt .file-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.upload-loaded {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.upload-loaded img {
  max-width: 200px;
  max-height: 280px;
  border-radius: 6px;
  border: 1px solid var(--border-light);
  object-fit: contain;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  justify-content: center;
}

.btn-reset {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  font-size: 0.85rem;
  color: var(--primary);
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-reset:hover {
  background: var(--border-light);
}

/* ===== RESULTS ===== */
.results {
  margin-top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
}

.results-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.verdict-badge {
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  display: inline-block;
}

.verdict-badge.pass {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid #bbf7d0;
}

.verdict-badge.fail {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid #fecaca;
}

.verdict-badge.warn {
  background: var(--amber-bg);
  color: var(--amber);
  border: 1px solid #fde68a;
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn-copy:hover {
  background: var(--border-light);
  border-color: var(--primary);
}

.btn-copy.copied {
  background: var(--green-bg);
  border-color: var(--green);
  color: var(--green);
}

.check-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 400px;
}

.check-table th {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.check-table td {
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.check-table tr:last-child td {
  border-bottom: none;
}

.status-pass {
  color: var(--green);
  font-weight: 600;
}

.status-fail {
  color: var(--red);
  font-weight: 600;
}

.status-warn {
  color: var(--amber);
  font-weight: 600;
}

.checked-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

.error-msg {
  margin-top: 1.5rem;
  background: var(--red-bg);
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 1rem;
  color: var(--red);
  font-size: 0.9rem;
}

/* ===== INFO SECTIONS ===== */
.info-sections {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.info-block {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  margin-bottom: 1rem;
}

.info-block h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.info-block p {
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 0.6rem;
}

.info-block a {
  color: var(--primary);
  text-decoration: none;
}

.info-block a:hover {
  text-decoration: underline;
}

.source-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  overflow-x: auto;
  display: block;
}

.source-table th {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.source-table td {
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.note {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #f8f9fb;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-left: 3px solid var(--amber);
}

.check-explain {
  list-style: none;
  padding: 0;
}

.check-explain li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
}

.check-explain li:last-child {
  border-bottom: none;
}

details {
  border-bottom: 1px solid var(--border-light);
  padding: 0.6rem 0;
}

details:last-child {
  border-bottom: none;
}

details summary {
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  padding: 0.25rem 0;
}

details summary:hover {
  color: var(--primary);
}

details p {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ===== FOOTER ===== */
.page-footer {
  text-align: center;
  padding: 1.5rem 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.page-footer a {
  color: var(--primary);
  text-decoration: none;
}

/* ===== MOBILE ===== */
@media (max-width: 600px) {
  .tool-header h1 {
    font-size: 1.25rem;
  }

  .tool-header .subtitle {
    font-size: 0.85rem;
  }

  .tool-section {
    padding: 1rem 0.75rem 1.5rem;
  }

  .upload-zone {
    padding: 1.75rem 1rem;
  }

  .upload-loaded img {
    max-width: 160px;
    max-height: 220px;
  }

  .results {
    padding: 1rem 0.75rem;
  }

  .results-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .verdict-badge {
    font-size: 1rem;
    padding: 0.4rem 1rem;
  }

  .check-table {
    font-size: 0.82rem;
    min-width: 320px;
  }

  .check-table th,
  .check-table td {
    padding: 0.5rem 0.35rem;
  }

  .info-sections {
    padding: 0 0.75rem 2rem;
  }

  .info-block {
    padding: 1.25rem 1rem;
  }

  .info-block h2 {
    font-size: 1.05rem;
  }

  .source-table {
    font-size: 0.78rem;
  }
}

@media (max-width: 380px) {
  .tool-header h1 {
    font-size: 1.1rem;
  }

  .upload-zone {
    padding: 1.25rem 0.75rem;
  }

  .check-table {
    font-size: 0.76rem;
  }

  .check-table th,
  .check-table td {
    padding: 0.4rem 0.25rem;
  }
}