:root {
    --an-bg: #f3f5f8;
    --an-bg-soft: #fafbfd;
    --an-surface: rgba(255, 255, 255, 0.86);
    --an-surface-solid: #ffffff;
    --an-border: rgba(15, 23, 42, 0.09);
    --an-text: #1f2937;
    --an-text-muted: #667085;
    --an-heading: #0f172a;
    --an-primary: #2563eb;
    --an-primary-strong: #1d4ed8;
    --an-danger: #dc2626;
    --an-success: #059669;
    --an-shadow-lg: 0 20px 42px rgba(15, 23, 42, 0.12);
    --an-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
}

body.analytics-app {
    background:
        radial-gradient(900px 360px at 8% -10%, rgba(37, 99, 235, 0.12), transparent 60%),
        radial-gradient(800px 260px at 90% -20%, rgba(147, 197, 253, 0.2), transparent 55%),
        linear-gradient(180deg, var(--an-bg-soft) 0%, var(--an-bg) 100%);
    color: var(--an-text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Pretendard", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
    letter-spacing: -0.01em;
}

.analytics-app header.bg-white {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.78);
    border-color: var(--an-border);
    backdrop-filter: saturate(180%) blur(18px);
}

.analytics-app section.bg-blue-600,
.analytics-app section.bg-indigo-700 {
    background: transparent;
    border: 0;
}

.analytics-app section.bg-blue-600 > div,
.analytics-app section.bg-indigo-700 > div {
    margin-top: 18px;
    margin-bottom: 10px;
    border-radius: 28px;
    padding-top: 28px;
    padding-bottom: 20px;
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.82)),
        linear-gradient(180deg, #f8fbff, #f4f7fc);
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: var(--an-shadow-lg);
}

.analytics-app section.bg-blue-600 h1,
.analytics-app section.bg-indigo-700 h1 {
    color: var(--an-heading);
    font-weight: 700;
}

.analytics-app .bg-white {
    background: var(--an-surface);
}

.analytics-app .bg-slate-50,
.analytics-app .bg-slate-100 {
    background: rgba(255, 255, 255, 0.72);
}

.analytics-app main .bg-white,
.analytics-app main .rounded-2xl {
    border: 1px solid var(--an-border);
    backdrop-filter: blur(12px);
}

.analytics-app .text-white,
.analytics-app .text-white\/90,
.analytics-app .text-blue-100 {
    color: var(--an-text-muted);
}

.analytics-app .text-slate-900,
.analytics-app .text-slate-800 {
    color: var(--an-heading);
}

.analytics-app .text-slate-700,
.analytics-app .text-slate-600,
.analytics-app .text-slate-500 {
    color: var(--an-text-muted);
}

.analytics-app .text-blue-600,
.analytics-app .text-indigo-600 {
    color: var(--an-primary-strong);
}

.analytics-app .border-slate-200,
.analytics-app .border-slate-300,
.analytics-app .divide-slate-200,
.analytics-app .divide-slate-100 {
    border-color: var(--an-border);
}

.analytics-app .rounded-2xl {
    border-radius: 24px;
    box-shadow: var(--an-shadow-md);
}

.analytics-app .rounded-xl {
    border-radius: 18px;
}

.analytics-app .rounded-lg {
    border-radius: 14px;
}

.analytics-app [class*="tab-active"] {
    border-radius: 999px;
}

.analytics-app .tab-active {
    background: #0f172a;
    color: #f8fafc !important;
    border: 1px solid rgba(15, 23, 42, 0.12);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.2);
    font-weight: 700;
}

.analytics-app .hover\:bg-white\/15:hover,
.analytics-app .hover\:bg-white\/20:hover {
    background: rgba(15, 23, 42, 0.05);
}

.analytics-app .bg-blue-600,
.analytics-app .bg-indigo-600 {
    background: linear-gradient(180deg, #2f6cf2 0%, #255fe0 100%);
    color: #ffffff;
    border: 1px solid rgba(37, 99, 235, 0.2);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.24);
}

.analytics-app .hover\:bg-blue-700:hover,
.analytics-app .hover\:bg-indigo-700:hover {
    background: linear-gradient(180deg, #2b63df 0%, #1f53cf 100%);
}

.analytics-app .bg-slate-900 {
    background: linear-gradient(180deg, #1f2937 0%, #111827 100%);
    color: #fff;
}

.analytics-app .hover\:bg-slate-800:hover {
    background: #1f2937;
}

.analytics-app button,
.analytics-app input,
.analytics-app select,
.analytics-app textarea {
    color: var(--an-text);
    border-color: var(--an-border);
    transition: all 0.18s ease;
}

.analytics-app button {
    font-weight: 600;
}

.analytics-app input,
.analytics-app select,
.analytics-app textarea {
    background: rgba(255, 255, 255, 0.94);
}

.analytics-app input::placeholder,
.analytics-app textarea::placeholder {
    color: #98a2b3;
}

.analytics-app input:focus,
.analytics-app select:focus,
.analytics-app textarea:focus,
.analytics-app button:focus-visible {
    outline: none;
    border-color: rgba(37, 99, 235, 0.44);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.analytics-app table thead tr {
    background: rgba(37, 99, 235, 0.07) !important;
}

.analytics-app table tbody tr:nth-child(2n) {
    background: rgba(15, 23, 42, 0.015);
}

.analytics-app table tbody tr:hover {
    background: rgba(37, 99, 235, 0.06);
}

.analytics-app .text-rose-600 {
    color: var(--an-danger);
}

.analytics-app .text-emerald-600 {
    color: var(--an-success);
}

.analytics-app .accent-blue-600 {
    accent-color: var(--an-primary);
}

.analytics-app code {
    background: rgba(15, 23, 42, 0.06);
    color: #1d4ed8;
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 6px;
}