:root {
    --bg: var(--mud-palette-background);
    --surface: var(--mud-palette-surface);
    --surface-soft: var(--mud-palette-background-gray);
    --border: var(--mud-palette-lines-inputs);
    --text: var(--mud-palette-text-primary);
    --text-muted: var(--mud-palette-text-secondary);
    --brand: var(--mud-palette-primary);
    --brand-contrast: var(--mud-palette-primary-text);
    --accent: var(--mud-palette-secondary);
    --accent-strong: var(--mud-palette-secondary);
    --success: var(--mud-palette-success);
    --shadow: 0 16px 40px rgba(45, 42, 31, 0.08);
    --result-bg: #22312f;
    --result-text: #f4f1ea;
    --result-muted: #a8bfb6;
    --result-accent: #e4a267;
    --result-border: rgba(255, 255, 255, 0.12);
    --row-cheaper: rgba(85, 127, 100, 0.14);
    --row-cheaper-hover: rgba(85, 127, 100, 0.24);
}

[data-theme="dark"] {
    --result-bg: #16201f;
    --result-text: #e0e8e6;
    --result-muted: #91a39e;
    --result-accent: #e8a467;
    --result-border: rgba(255, 255, 255, 0.10);
    --row-cheaper: rgba(111, 179, 137, 0.15);
    --row-cheaper-hover: rgba(111, 179, 137, 0.26);
}

html, body {
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: inherit;
}

.content {
    padding-top: 1.1rem;
}

.app-header {
    flex-direction: column;
    padding: 14px 28px 0;
}

.app-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    margin-left: auto;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: var(--mud-palette-appbar-text);
    color: var(--mud-palette-appbar-background);
}

.app-title {
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-nav-wrap {
    display: flex;
    justify-content: center;
    width: 100%;
}

.app-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.06);
    overflow-x: auto;
    scrollbar-width: none;
    white-space: nowrap;
}

.app-nav::-webkit-scrollbar {
    display: none;
}

.app-nav .nav-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.92rem;
    white-space: nowrap;
    color: var(--mud-palette-appbar-text);
    opacity: .78;
    text-decoration: none;
    transition: background-color .15s ease, color .15s ease, opacity .15s ease;
}

.app-nav .nav-pill:hover {
    background: rgba(255, 255, 255, 0.14);
    opacity: 1;
}

.app-nav .nav-pill.active {
    background: var(--mud-palette-appbar-text);
    color: var(--mud-palette-appbar-background);
    opacity: 1;
    font-weight: 700;
}

.app-nav .mud-nav-link .mud-icon-root {
    font-size: 1.15rem;
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

body { background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
.hero-panel, .form-card, .result-card, .trend-card, .toolbar-card, .empty-state { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 16px 40px var(--shadow); }
.hero-panel { display: flex; justify-content: space-between; gap: 32px; padding: 48px; margin-bottom: 24px; background: var(--brand); color: var(--brand-contrast); }
.hero-panel h1 { max-width: 620px; margin: 8px 0 16px; font-size: clamp(2.3rem, 6vw, 5.5rem); line-height: .96; letter-spacing: -.06em; }
.hero-copy { max-width: 540px; color: var(--brand-contrast); opacity: .78; font-size: 1.1rem; }
.hero-stat { min-width: 180px; align-self: end; display: grid; gap: 8px; color: var(--brand-contrast); opacity: .78; }
.hero-stat strong { color: var(--brand-contrast); opacity: 1; font-size: 1.5rem; }
.eyebrow { margin: 0; color: var(--accent); font-size: .74rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.metric-card { padding: 24px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); }
.metric-label { display: block; color: var(--text-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.metric-card strong { display: block; margin-top: 10px; font-size: 1.35rem; }
.metric-card p { margin: 8px 0 0; color: var(--text-muted); }
.accent-blue { border-top: 4px solid #4c8295; }
.accent-amber { border-top: 4px solid var(--accent); }
.accent-green { border-top: 4px solid var(--success); }
.primary-button { display: inline-block; border: 0; border-radius: 999px; padding: 12px 18px; font-weight: 750; text-decoration: none; cursor: pointer; background: var(--accent); color: var(--surface); }
.page-heading { margin: 24px 0; }
.page-heading h1 { margin: 6px 0; font-size: clamp(2rem, 5vw, 4.2rem); letter-spacing: -.05em; }
.page-heading p:last-child { color: var(--text-muted); }
.calculator-toolbar { display: grid; grid-template-columns: 1.4fr .7fr .8fr auto; gap: 14px; align-items: end; margin: 20px 0 20px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 18px; }
.section-heading h2 { margin: 4px 0 0; }
.heading-actions { display: flex; align-items: center; gap: 10px; }
.chart-day-toggle { display: flex; align-items: center; gap: 12px; }
.chart-day-toggle .mud-button-group-root { gap: 4px; }
.chart-day-toggle .toggle-active { font-weight: 700; }
.chart-day-toggle .toggle-inactive { opacity: .7; }
.chart-day-toggle .result-caption { white-space: nowrap; }
.agreement-editor { margin-bottom: 20px; }
.agreement-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.agreement-card { display: grid; gap: 12px; padding: 16px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-soft); }
.grid-tariff-card { margin-bottom: 20px; }
.comparison-card { padding: 28px; }
.comparison-scroll { overflow-x: auto; }
.comparison-table { width: 100%; min-width: 780px; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 14px 12px; border-bottom: 1px solid var(--result-border); text-align: right; white-space: nowrap; }
.comparison-table th:first-child, .comparison-table td:first-child, .comparison-table th:nth-child(2), .comparison-table td:nth-child(2) { text-align: left; }
.comparison-table th { color: var(--result-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.best-row { background: var(--row-cheaper-hover); }
.cheaper-row td { background: var(--row-cheaper); }
.cheaper-row:hover td, .cheaper-row.best-row td { background: var(--row-cheaper-hover); }
.current-hour-row { outline: 2px solid var(--accent-strong); outline-offset: -2px; }
.current-hour-row td { background: rgba(228,162,103,.14); }
.now-chip { display: inline-block; margin-left: 8px; padding: 2px 8px; border-radius: 999px; background: var(--accent-strong); color: var(--brand-contrast); font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; }
.current-hour-caption { color: var(--accent-strong); font-weight: 700; }
.agreement-table-card { padding: 28px; }
.agreement-range-table { min-width: 900px; }
.agreement-range-table td:first-child { font-weight: 700; color: var(--result-text); opacity: .85; }
.calculation-note { margin: 18px 0 0; color: var(--result-muted); font-size: .88rem; }
.profile-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: start; }
.form-card, .result-card, .toolbar-card, .empty-state, .trend-card { padding: 24px; }
.form-actions { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.result-card { background: var(--result-bg); color: var(--result-text); }
.result-card .eyebrow { color: var(--result-accent); }
.result-card h2 { margin: 10px 0 0; font-size: 3rem; letter-spacing: -.05em; }
.result-caption { color: var(--text-muted); }
.result-card .result-caption { color: var(--result-muted); }
.toolbar-card { display: flex; align-items: end; gap: 16px; margin-bottom: 20px; }
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.price-card { padding: 15px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); }
.price-card span, .price-card small { display: block; color: var(--text-muted); }
.price-card strong { display: block; margin: 8px 0 4px; font-size: 1.25rem; }
.status-message { color: var(--text-muted); margin: 0 0 6px; }
.toolbar-row { display: flex; flex-direction: row; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
.run-list { margin: 12px 0 0; padding: 0; list-style: none; font-size: .85rem; color: var(--text-muted); }
.run-list li { padding: 6px 0; border-bottom: 1px solid var(--border); }
.trend-card { min-height: 220px; display: grid; place-items: center; }
.trend-card.align-start { align-items: start; }
.trend-placeholder { text-align: center; color: var(--text-muted); }
.trend-placeholder strong { display: block; margin: 12px 0 6px; color: var(--text); }
.chart-panel { padding: 24px; }
.chart-panel .section-heading { margin-bottom: 8px; }
.chart-panel path.mud-chart-line[stroke="#9E9E9E"] { stroke-dasharray: 8 5; }
.chart-panel svg text { font-size: 14px; font-weight: 600; }
.chart-panel .mud-chart-legend { font-size: 15px; font-weight: 600; }
.clickable { cursor: pointer; transition: transform .08s ease, box-shadow .08s ease; }
.clickable:hover { transform: translateY(-2px); box-shadow: 0 12px 28px var(--shadow); }
.month-table { min-width: unset; }
.month-table th, .month-table td { font-size: 1rem; padding: 10px 14px; }
.month-table td:last-child { font-weight: 600; }
.empty-state { text-align: center; }
@media (max-width: 850px) { .hero-panel, .toolbar-card { display: block; } .hero-stat { margin-top: 32px; } .profile-grid, .agreement-grid { grid-template-columns: 1fr; } .calculator-toolbar { grid-template-columns: 1fr 1fr; } .price-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .hero-panel { padding: 28px; } .price-grid { grid-template-columns: 1fr; } }