static/style.css

:root {
    --background: #f4f6fb;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #1d4ed8;
    --primary-dark: #1e40af;
    --border: #d9e1ef;
    --warning-bg: #fff7ed;
    --warning-border: #fed7aa;
    --error-bg: #fef2f2;
    --error-border: #fecaca;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: var(--text);
    background: var(--background);
    line-height: 1.6;
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.page-header {
    background: linear-gradient(135deg, #1d4ed8, #0f172a);
    color: #ffffff;
    padding: 36px 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.page-header h1 {
    margin: 0;
    font-size: 34px;
    line-height: 1.2;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-header .eyebrow {
    color: #bfdbfe;
}

.header-badge {
    padding: 10px 16px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    white-space: nowrap;
}

.main-content {
    padding: 32px 0;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    padding: 24px;
}

.card h2 {
    margin: 0 0 14px;
    font-size: 22px;
}

.intro-card {
    margin-bottom: 24px;
}

.grid-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 24px;
    align-items: start;
}

.side-column {
    display: grid;
    gap: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

textarea {
    width: 100%;
    resize: vertical;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 14px;
    font: inherit;
    color: var(--text);
    background: #fbfdff;
    outline: none;
}

textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
}

button {
    margin-top: 16px;
    border: none;
    border-radius: 12px;
    padding: 12px 18px;
    background: var(--primary);
    color: #ffffff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

button:hover {
    background: var(--primary-dark);
}

.genre-list {
    margin: 0;
    padding-left: 20px;
}

.genre-list li {
    margin: 6px 0;
}

.warning-box {
    margin-top: 18px;
    padding: 14px 16px;
    border: 1px solid var(--warning-border);
    border-radius: 14px;
    background: var(--warning-bg);
}

.file-name {
    font-family: Consolas, monospace;
    background: #eef2ff;
    border-radius: 6px;
    padding: 1px 5px;
}

.metrics-list {
    display: grid;
    gap: 12px;
}

.metric-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.metric-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.result-card {
    margin-bottom: 24px;
    border-color: #bfdbfe;
}

.result-card h2 {
    color: var(--primary-dark);
    font-size: 36px;
}

.confidence {
    font-size: 18px;
}

.annotation-text {
    white-space: pre-wrap;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}

.secondary-link {
    display: inline-block;
    margin-top: 14px;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.secondary-link:hover {
    text-decoration: underline;
}

.probability-list {
    display: grid;
    gap: 14px;
}

.probability-heading {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 6px;
}

.probability-bar {
    height: 10px;
    border-radius: 999px;
    background: #e5e7eb;
    overflow: hidden;
}

.probability-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
}

.error-card {
    border-color: var(--error-border);
    background: var(--error-bg);
    margin-bottom: 24px;
}

.page-footer {
    padding: 24px 0 36px;
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 860px) {
    .header-content,
    .grid-layout {
        grid-template-columns: 1fr;
        display: grid;
    }

    .header-badge {
        justify-self: start;
    }

    .page-header h1 {
        font-size: 28px;
    }
}