:root {
    --primary: #ef4444;
    --primary-dark: #b91c1c;
    --accent: #16a34a;
    --bg: #0f1220;
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.1);
    --text: #f4f4f7;
    --text-muted: #9ca3af;
    --radius: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(circle at 20% 0%, #1b1032 0%, #0f1220 45%, #0a0c16 100%);
    color: var(--text);
    position: relative;
    overflow-x: hidden;
}

.bg-decor {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 85% 15%, rgba(239, 68, 68, 0.18), transparent 40%),
        radial-gradient(circle at 10% 80%, rgba(22, 163, 74, 0.15), transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0 auto;
    padding: 40px 24px 60px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 32px;
}

.title-group h1 {
    margin: 0 0 6px;
    font-size: 28px;
    letter-spacing: 0.5px;
}

.subtitle {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.btn {
    border: none;
    border-radius: 999px;
    padding: 11px 22px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:active { transform: scale(0.96); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.35);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 10px 26px rgba(239, 68, 68, 0.5); }

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid var(--card-border);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.14); }

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--card-border);
    padding: 9px 18px;
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.08); }

.btn-copy {
    background: linear-gradient(135deg, #22c55e, #15803d);
    color: #fff;
    padding: 8px 18px;
    font-size: 13px;
}

.control-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 20px;
    backdrop-filter: blur(12px);
}

.date-picker-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.date-picker-group label {
    font-size: 13px;
    color: var(--text-muted);
}

select, input[type="date"] {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--card-border);
    color: var(--text);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 14px;
}

.summary-badges {
    display: flex;
    gap: 12px;
}

.badge {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 8px 16px;
    text-align: center;
    min-width: 90px;
}
.badge.highlight {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(185, 28, 28, 0.15));
    border-color: rgba(239, 68, 68, 0.4);
}
.badge-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.badge-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
}

.codes-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 20px;
    backdrop-filter: blur(12px);
}

.codes-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.codes-panel-header h3 {
    margin: 0;
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 600;
}

#codesText {
    width: 100%;
    min-height: 64px;
    resize: vertical;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text);
    padding: 12px;
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 13px;
    line-height: 1.6;
}

.results-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 8px;
    backdrop-filter: blur(12px);
    min-height: 200px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
}

.results-table thead th {
    text-align: left;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    padding: 14px 18px;
    border-bottom: 1px solid var(--card-border);
}

.results-table tbody td {
    padding: 14px 18px;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.results-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.04);
}

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

.code-pill {
    display: inline-block;
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    padding: 3px 10px;
    border-radius: 999px;
    font-family: Consolas, monospace;
    font-size: 13px;
}

.pct-value {
    color: var(--accent);
    font-weight: 700;
}

.empty-state, .loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    gap: 12px;
}

.hidden { display: none !important; }

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.footer {
    text-align: center;
    margin-top: 28px;
    font-size: 12px;
    color: var(--text-muted);
}

.toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(20, 20, 30, 0.95);
    border: 1px solid var(--card-border);
    color: var(--text);
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 13px;
    z-index: 10;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    transition: opacity 0.2s ease;
}

@media (max-width: 640px) {
    .header { flex-direction: column; }
    .control-bar { flex-direction: column; align-items: stretch; }
    .summary-badges { justify-content: flex-start; }
}