/* =============================================================================
   NF525 Auditor Verification Tool -- Styles
   ============================================================================= */

:root {
    --color-bg: #f5f6fa;
    --color-surface: #ffffff;
    --color-primary: #0f3460;
    --color-primary-light: #16213e;
    --color-text: #1a1a2e;
    --color-text-muted: #6c757d;
    --color-border: #dee2e6;
    --color-pass: #2d6a4f;
    --color-pass-bg: #d8f3dc;
    --color-fail: #d00000;
    --color-fail-bg: #fde8e8;
    --color-warn: #e85d04;
    --color-warn-bg: #fff3cd;
    --color-na: #adb5bd;
    --color-na-bg: #e9ecef;
    --radius: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: white;
    padding: 24px 32px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.header h1 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 4px;
}

.header .subtitle {
    font-size: 13px;
    opacity: 0.8;
}

/* Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    background: var(--color-surface);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    margin-bottom: 20px;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--color-primary);
    background: #f0f4ff;
}

.drop-zone h3 {
    color: var(--color-primary);
    margin-bottom: 8px;
    font-size: 16px;
}

.drop-zone p {
    color: var(--color-text-muted);
    font-size: 13px;
    margin: 4px 0;
}

#file-input {
    display: none;
}

/* Status */
#load-status {
    display: none;
    margin-bottom: 16px;
}

.status-item {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    margin-bottom: 4px;
}

.status-success { background: var(--color-pass-bg); color: var(--color-pass); }
.status-error { background: var(--color-fail-bg); color: var(--color-fail); }
.status-warn { background: var(--color-warn-bg); color: var(--color-warn); }

/* API Config */
.api-config {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    font-size: 13px;
}

.api-config summary {
    padding: 10px 16px;
    cursor: pointer;
    color: var(--color-text-muted);
    font-weight: 500;
}

.api-config summary:hover { color: var(--color-primary); }

.api-config-body {
    padding: 0 16px 16px;
}

.api-field {
    margin-bottom: 8px;
}

.api-field label {
    display: block;
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 3px;
}

.api-field input {
    width: 100%;
    padding: 6px 10px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 13px;
    font-family: inherit;
}

.api-field input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.api-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

/* Key Status */
.key-status {
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 12px;
}

.key-status.loaded { background: var(--color-pass-bg); color: var(--color-pass); }
.key-status.not-loaded { background: var(--color-fail-bg); color: var(--color-fail); }

/* Data Badges */
#data-counts {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.data-badge {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 12px;
    color: var(--color-primary);
    font-weight: 500;
}

/* Summary */
#summary {
    display: none;
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.summary-item {
    padding: 6px 0;
    font-size: 14px;
    font-weight: 500;
}

.summary-item.pass { color: var(--color-pass); }
.summary-item.fail { color: var(--color-fail); }

/* Actions */
#actions {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--color-primary);
    color: white;
}

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

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover { background: var(--color-bg); }

.btn-report {
    background: var(--color-pass);
    color: white;
}

.btn-report:hover { background: #245c42; }

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: color 0.2s, border-color 0.2s;
}

.tab-btn:hover { color: var(--color-primary); }

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Tab Panels */
.tab-panel {
    display: none;
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.tab-panel.active { display: block; }

.tab-panel h4 {
    color: var(--color-primary);
    margin: 16px 0 8px;
    font-size: 14px;
}

.tab-panel h4:first-child { margin-top: 0; }

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    margin: 8px 0;
}

thead th {
    background: var(--color-primary-light);
    color: white;
    padding: 8px 12px;
    text-align: left;
    font-weight: 500;
    font-size: 12px;
}

td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--color-border);
}

tr:nth-child(even) { background: #fafbfc; }

.pass { color: var(--color-pass); font-weight: 600; }
.fail { color: var(--color-fail); font-weight: 600; }
.warn { color: var(--color-warn); font-weight: 600; }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge-pass { background: var(--color-pass-bg); color: var(--color-pass); }
.badge-fail { background: var(--color-fail-bg); color: var(--color-fail); }
.badge-warn { background: var(--color-warn-bg); color: var(--color-warn); }
.badge-na { background: var(--color-na-bg); color: var(--color-text-muted); }

/* Field Grid (R13/R19 coverage matrix) */
.field-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin: 8px 0;
}

.field-cell {
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 11px;
    min-width: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
    cursor: default;
}

.field-label {
    font-weight: 600;
    font-family: monospace;
    font-size: 10px;
}

.field-level {
    font-size: 10px;
    opacity: 0.8;
}

.field-present { background: var(--color-pass-bg); color: var(--color-pass); }
.field-missing { background: var(--color-fail-bg); color: var(--color-fail); }
.field-partial { background: var(--color-warn-bg); color: var(--color-warn); }
.field-na { background: var(--color-na-bg); color: var(--color-text-muted); }

/* Details List */
.details-list {
    margin: 8px 0;
}

.detail-item {
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 4px;
}

.detail-item.invalid,
.detail-item.fail { background: var(--color-fail-bg); color: var(--color-fail); }
.detail-item.error,
.detail-item.warn { background: var(--color-warn-bg); color: var(--color-warn); }
.detail-item.missing { background: var(--color-na-bg); color: var(--color-text-muted); }

.detail-item code {
    background: rgba(0,0,0,0.05);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 11px;
}

/* R19 Stats */
.r19-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

/* Loading Overlay */
#loading {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Footer */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .container { padding: 12px; }
    .drop-zone { padding: 24px; }
    .field-cell { min-width: 80px; }
    .tab-btn { padding: 8px 12px; font-size: 12px; }
}