/* ============================================================
   Equipment Calibration — Styles
   ISO 9001:2015 section 7.1.5 measurement resources
   ============================================================ */

/* Container */
.calibration-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px;
}

/* Header */
.calibration-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.calibration-header h2 {
    font-size: 22px;
    color: #1d1d1f;
    margin: 0;
    font-weight: 700;
}

.calibration-header-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

/* Overdue warning badge */
.calibration-overdue-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #fff5f5;
    color: #c53030;
    border: 1px solid #fed7d7;
    border-radius: 8px;
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 600;
}

/* Stats row */
.calibration-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

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

.calibration-stat-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 14px 16px;
    text-align: center;
}

.calibration-stat-value {
    font-size: 26px;
    font-weight: 700;
    color: #1d1d1f;
    line-height: 1;
    margin-bottom: 4px;
}

.calibration-stat-label {
    font-size: 11px;
    color: #6e6e73;
    font-weight: 500;
}

/* Filters */
.calibration-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.calibration-filter-select {
    padding: 7px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    background: white;
    cursor: pointer;
    color: #374151;
}

.calibration-filter-select:focus {
    outline: none;
    border-color: #38a169;
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.12);
}

/* Card grid */
.calibration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 14px;
}

/* Instrument card */
.calibration-card {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 16px 18px;
    cursor: pointer;
    transition: box-shadow 0.2s, border-color 0.2s, transform 0.15s;
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-top: 3px solid #e5e7eb;
}

.calibration-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    border-color: #38a169;
    transform: translateY(-1px);
}

.calibration-card.status-active   { border-top-color: #38a169; }
.calibration-card.status-overdue  { border-top-color: #e53e3e; }
.calibration-card.status-limited  { border-top-color: #ed8936; }
.calibration-card.status-inactive { border-top-color: #94a3b8; }

.calibration-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.calibration-card-name {
    font-size: 14px;
    font-weight: 700;
    color: #1d1d1f;
    flex: 1;
    min-width: 0;
}

.calibration-card-number {
    font-size: 11px;
    color: #6e6e73;
    margin-top: 2px;
    font-weight: 500;
}

.calibration-card-type {
    font-size: 11px;
    color: #374151;
    background: #f3f4f6;
    padding: 2px 8px;
    border-radius: 6px;
    flex-shrink: 0;
}

/* Status badge */
.calibration-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.calib-status-active   { background: #f0fff4; color: #276749; border: 1px solid #9ae6b4; }
.calib-status-overdue  { background: #fff5f5; color: #c53030; border: 1px solid #fed7d7; }
.calib-status-limited  { background: #fffaf0; color: #c05621; border: 1px solid #fbd38d; }
.calib-status-inactive { background: #f1f5f9; color: #64748b; border: 1px solid #cbd5e1; }

/* Due date row */
.calibration-due-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.calibration-due-label {
    color: #6e6e73;
    font-weight: 500;
}

.calibration-due-value {
    font-weight: 600;
}

.calibration-due-value.overdue  { color: #e53e3e; }
.calibration-due-value.warning  { color: #ed8936; }
.calibration-due-value.ok       { color: #38a169; }

.calibration-card-location {
    font-size: 12px;
    color: #6e6e73;
}

/* Buttons */
.calibration-btn {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.calibration-btn-primary {
    background: #38a169;
    color: white;
}
.calibration-btn-primary:hover { background: #276749; }

.calibration-btn-secondary {
    background: #f3f4f6;
    color: #374151;
}
.calibration-btn-secondary:hover { background: #e5e7eb; }

.calibration-btn-danger {
    background: #fee2e2;
    color: #dc2626;
}
.calibration-btn-danger:hover { background: #fca5a5; }

.calibration-btn-accent {
    background: #ebf8ff;
    color: #2c5282;
    border: 1px solid #bee3f8;
}
.calibration-btn-accent:hover { background: #bee3f8; }

.calibration-btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* Empty state */
.calibration-empty {
    text-align: center;
    padding: 60px 20px;
}

.calibration-empty-icon { font-size: 52px; margin-bottom: 14px; }
.calibration-empty-title { font-size: 18px; font-weight: 600; color: #1d1d1f; margin-bottom: 8px; }
.calibration-empty-desc { font-size: 13px; color: #64748b; max-width: 420px; margin: 0 auto 24px; line-height: 1.6; }

/* Detail view */
.calibration-detail {
    background: white;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    overflow: hidden;
}

.calibration-detail-head {
    background: linear-gradient(135deg, #1a4731 0%, #38a169 100%);
    color: white;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.calibration-detail-number {
    font-size: 12px;
    opacity: 0.7;
    margin-bottom: 4px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.calibration-detail-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.calibration-detail-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    opacity: 0.85;
}

.calibration-detail-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Detail body */
.calibration-detail-body {
    padding: 20px 24px;
    display: grid;
    gap: 16px;
}

/* Info grid */
.calibration-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 600px) {
    .calibration-info-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 380px) {
    .calibration-info-grid { grid-template-columns: 1fr; }
}

.calibration-info-item {}
.calibration-info-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #6e6e73;
    margin-bottom: 3px;
}
.calibration-info-value {
    font-size: 13px;
    color: #1d1d1f;
    font-weight: 500;
}

/* Section */
.calibration-section {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    overflow: hidden;
}

.calibration-section-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #374151;
    padding: 10px 14px;
    background: #f9fafb;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calibration-section-content {
    padding: 14px;
    font-size: 13px;
    color: #374151;
    line-height: 1.6;
    white-space: pre-wrap;
}

/* Calibration record */
.calibration-record-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 14px;
    border-bottom: 1px solid #f3f4f6;
}

.calibration-record-item:last-child { border-bottom: none; }

.calibration-record-date {
    font-size: 12px;
    font-weight: 700;
    color: #374151;
    min-width: 80px;
    flex-shrink: 0;
}

.calibration-record-info {
    flex: 1;
    min-width: 0;
}

.calibration-record-title {
    font-size: 13px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 2px;
}

.calibration-record-meta {
    font-size: 11px;
    color: #6e6e73;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Result badges for calibration records */
.badge-result-pass    { display: inline-flex; align-items: center; padding: 1px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; background: #f0fff4; color: #276749; }
.badge-result-limited { display: inline-flex; align-items: center; padding: 1px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; background: #fffaf0; color: #c05621; }
.badge-result-fail    { display: inline-flex; align-items: center; padding: 1px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; background: #fff5f5; color: #c53030; }

/* Detail footer */
.calibration-detail-footer {
    padding: 14px 24px;
    border-top: 1px solid #e5e7eb;
    background: #fafafa;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.calibration-footer-meta {
    font-size: 12px;
    color: #9ca3af;
}

/* Status select */
.calibration-status-select {
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    font-size: 13px;
    font-family: inherit;
    background: white;
    cursor: pointer;
}

.calibration-status-select:focus {
    outline: none;
    border-color: #38a169;
}

/* Form elements */
.calibration-form-group {
    margin-bottom: 14px;
}

.calibration-form-label {
    font-size: 12px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 5px;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.calibration-form-input,
.calibration-form-textarea,
.calibration-form-select {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 13px;
    color: #1d1d1f;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
    background: white;
}

.calibration-form-input:focus,
.calibration-form-textarea:focus,
.calibration-form-select:focus {
    outline: none;
    border-color: #38a169;
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.12);
}

.calibration-form-textarea { resize: vertical; min-height: 80px; }

.calibration-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

@media (max-width: 480px) {
    .calibration-form-row { grid-template-columns: 1fr; }
}

/* Modal */
.calibration-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.calibration-modal {
    background: white;
    border-radius: 16px;
    padding: 24px;
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.calibration-modal-title {
    font-size: 18px;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 18px;
}

.calibration-modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Toast */
.calibration-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #1d1d1f;
    color: white;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    z-index: 9999;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
    animation: calibration-toast-in 0.25s ease;
}

@keyframes calibration-toast-in {
    from { transform: translateY(16px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

/* Responsive */
@media (max-width: 640px) {
    .calibration-detail-head { padding: 16px; }
    .calibration-detail-name { font-size: 18px; }
    .calibration-detail-body { padding: 14px; }
    .calibration-grid { grid-template-columns: 1fr; }
}