/* ST Exam Results - Public Styles */
.stex-wrap { font-family: 'Segoe UI', Arial, sans-serif; max-width: 800px; margin: 0 auto; padding: 20px 0; }

.stex-checker-box { background: #fff; border-radius: 12px; box-shadow: 0 4px 24px rgba(0,0,0,0.10); overflow: hidden; }

.stex-header { background: linear-gradient(135deg, #0033aa, #0099dd); color: #fff; padding: 24px 30px; display: flex; align-items: center; gap: 16px; }
.stex-logo { background: rgba(255,255,255,0.2); border: 2px solid rgba(255,255,255,0.5); border-radius: 8px; font-size: 26px; font-weight: 900; padding: 6px 14px; letter-spacing: 2px; }
.stex-header h2 { margin: 0 0 4px; font-size: 22px; }
.stex-header p  { margin: 0; opacity: 0.85; font-size: 13px; }

.stex-form { padding: 20px 30px; background: #f7faff; border-bottom: 1px solid #e0e8f0; }
.stex-input-row { display: flex; gap: 10px; }
.stex-input-row input { flex: 1; padding: 12px 16px; border: 2px solid #c5d8f0; border-radius: 6px; font-size: 15px; outline: none; transition: border-color 0.2s; }
.stex-input-row input:focus { border-color: #0066cc; }
.stex-input-row button { padding: 12px 24px; background: linear-gradient(135deg, #0055cc, #0099dd); color: #fff; border: none; border-radius: 6px; font-size: 15px; font-weight: 700; cursor: pointer; white-space: nowrap; }
.stex-input-row button:hover { opacity: 0.9; }

.stex-alert { margin: 20px 30px; padding: 14px 18px; border-radius: 6px; font-size: 14px; }
.stex-alert.error { background: #fff0f0; border-left: 4px solid #cc0000; color: #800000; }
.stex-alert.info  { background: #f0f6ff; border-left: 4px solid #0066cc; color: #003366; }

.stex-student-info { margin: 20px 30px 0; background: #f0f6ff; border-radius: 8px; padding: 16px 20px; }
.stex-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stex-info-grid div { display: flex; flex-direction: column; gap: 2px; }
.stex-info-grid span { font-size: 11px; color: #666; text-transform: uppercase; letter-spacing: 0.5px; }
.stex-info-grid strong { font-size: 15px; color: #0033aa; }

.stex-table { width: calc(100% - 60px); margin: 20px 30px 30px; border-collapse: collapse; font-size: 14px; }
.stex-table thead tr { background: #0033aa; color: #fff; }
.stex-table th { padding: 12px 14px; text-align: left; font-weight: 600; }
.stex-table td { padding: 11px 14px; border-bottom: 1px solid #edf0f7; }
.stex-table tbody tr:hover { background: #f5f8ff; }

.stex-grade { background: #0033aa; color: #fff; padding: 3px 10px; border-radius: 4px; font-weight: 700; font-size: 13px; }
.stex-badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.stex-badge.pass, .stex-badge.completed { background: #d4f5e2; color: #0a6b33; }
.stex-badge.fail  { background: #ffe0e0; color: #990000; }
.stex-badge.upcoming { background: #fff3cd; color: #856404; }
.stex-badge.ongoing  { background: #cce5ff; color: #004085; }

.stex-section-title { font-size: 22px; color: #0033aa; margin-bottom: 16px; }

@media (max-width: 600px) {
  .stex-input-row { flex-direction: column; }
  .stex-info-grid { grid-template-columns: 1fr; }
  .stex-table { width: 100%; margin: 16px 0 20px; }
  .stex-student-info { margin: 16px 0 0; }
  .stex-alert { margin: 16px 0; }
  .stex-form { padding: 16px; }
}