:root {
    --page-bg: #f6f7f9;
    --ink: #111827;
    --muted: #64748b;
    --line: #e2e8f0;
    --surface: #ffffff;
    --surface-soft: #eef2f7;
    --primary: #234e52;
    --primary-strong: #153538;
    --accent: #b7791f;
    --violet: #5a67d8;
}

* {
    box-sizing: border-box;
}

html,
body {
    background: var(--page-bg);
    color: var(--ink);
    font-family: Inter, "Segoe UI", "Noto Sans KR", Arial, sans-serif;
    margin: 0;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-strong);
    text-decoration: underline;
}

h1:focus {
    outline: none;
}

.page-band {
    padding: 72px 28px;
}

.page-band.compact {
    padding: 36px 28px;
}

.content-container {
    margin: 0 auto;
    max-width: 1180px;
    width: 100%;
}

.hero {
    min-height: calc(100vh - 64px);
    padding-top: 56px;
}

.hero-grid {
    align-items: center;
    display: grid;
    gap: 48px;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
}

.eyebrow {
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
}

.hero-title {
    color: var(--ink);
    font-size: clamp(2.25rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.03;
    margin: 14px 0 18px;
}

.hero-copy {
    color: #475569;
    font-size: 1.08rem;
    line-height: 1.75;
    margin: 0;
    max-width: 680px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.signal-panel {
    background: linear-gradient(145deg, #ffffff 0%, #eef2f7 100%);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    overflow: hidden;
}

.signal-header {
    align-items: center;
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 8px;
    padding: 16px 18px;
}

.signal-dot {
    border-radius: 999px;
    display: block;
    height: 9px;
    width: 9px;
}

.signal-dot.green {
    background: #2f855a;
}

.signal-dot.gold {
    background: var(--accent);
}

.signal-dot.violet {
    background: var(--violet);
}

.signal-body {
    display: grid;
    gap: 1px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.signal-tile {
    background: rgba(255, 255, 255, 0.78);
    min-height: 132px;
    padding: 24px;
}

.signal-tile strong {
    color: var(--ink);
    display: block;
    font-size: 1.75rem;
    margin-bottom: 6px;
}

.signal-tile span {
    color: var(--muted);
    font-size: 0.94rem;
}

.section-title {
    font-size: 1.9rem;
    font-weight: 800;
    margin: 0 0 22px;
}

.tool-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.tool-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 156px;
    padding: 20px;
}

.tool-card h3 {
    font-size: 1rem;
    margin: 14px 0 8px;
}

.tool-card p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 0;
}

.admin-page {
    padding: 28px;
}

.admin-container {
    margin: 0 auto;
    max-width: 1280px;
}

.login-shell {
    align-items: center;
    display: grid;
    min-height: calc(100vh - 64px);
    padding: 32px;
}

.login-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
    margin: 0 auto;
    max-width: 440px;
    padding: 30px;
    width: 100%;
}

.validation-message {
    color: #c53030;
}

.invalid {
    outline: 1px solid #c53030;
}

.blazor-error-boundary {
    background: #7f1d1d;
    color: white;
    padding: 1rem;
}

.blazor-error-boundary::after {
    content: "처리 중 오류가 발생했습니다.";
}

@media (max-width: 980px) {
    .hero-grid,
    .tool-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }
}

@media (max-width: 640px) {
    .page-band,
    .page-band.compact,
    .admin-page {
        padding-left: 18px;
        padding-right: 18px;
    }

    .signal-body {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.35rem;
    }
}