/* =============================================
   EIA Energy Data Plugin — Stylesheet
   Aesthetic: Industrial / Government Data Dashboard
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;500;700&display=swap');

/* --- CSS Variables --- */
:root {
    --eia-blue:       #1565c0;
    --eia-blue-dark:  #0d3f7a;
    --eia-blue-light: #e3f0fd;
    --eia-gold:       #e6a817;
    --eia-green:      #2e7d32;
    --eia-red:        #c62828;
    --eia-grey:       #455a64;
    --eia-border:     #cfd8dc;
    --eia-bg:         #f5f7fa;
    --eia-text:       #1a2633;
    --eia-mono:       'IBM Plex Mono', 'Courier New', monospace;
    --eia-sans:       'IBM Plex Sans', Arial, sans-serif;
}

/* --- Inline --- */
.eia-inline {
    font-family: var(--eia-mono);
    font-weight: 600;
    color: var(--eia-blue);
    font-size: 1em;
    cursor: default;
    border-bottom: 1px dotted var(--eia-blue);
}

/* --- Badge --- */
.eia-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--eia-mono);
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--eia-blue-dark);
    color: #c8e6ff;
    padding: 4px 12px;
    border-radius: 2px;
    letter-spacing: 0.03em;
    white-space: nowrap;
    border-left: 3px solid var(--eia-gold);
}

/* --- Card --- */
.eia-card {
    display: inline-block;
    background: #ffffff;
    border: 1px solid var(--eia-border);
    border-top: 3px solid var(--eia-blue);
    border-radius: 4px;
    padding: 18px 22px 14px;
    min-width: 200px;
    box-shadow: 0 2px 10px rgba(21,101,192,0.08);
    font-family: var(--eia-sans);
    vertical-align: top;
    position: relative;
}
.eia-card__source {
    font-family: var(--eia-mono);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--eia-blue);
    margin-bottom: 6px;
    opacity: 0.75;
}
.eia-card__label {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--eia-grey);
    margin-bottom: 8px;
    line-height: 1.3;
}
.eia-card__price {
    font-family: var(--eia-mono);
    font-size: 2rem;
    font-weight: 600;
    color: var(--eia-text);
    line-height: 1;
    margin-bottom: 4px;
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.eia-card__unit {
    font-family: var(--eia-sans);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--eia-grey);
}
.eia-card__meta {
    font-family: var(--eia-mono);
    font-size: 0.7rem;
    color: #90a4ae;
    border-top: 1px solid var(--eia-border);
    padding-top: 10px;
    margin-top: 10px;
    letter-spacing: 0.03em;
}

/* Dark mode — card */
@media (prefers-color-scheme: dark) {
    .eia-card {
        background: #0a1929;
        border-color: #1e3a5f;
        border-top-color: #4da3ff;
    }
    .eia-card__label { color: #90a4ae; }
    .eia-card__price { color: #e8f4fd; }
    .eia-card__unit  { color: #546e7a; }
    .eia-card__meta  { color: #37474f; border-top-color: #1e3a5f; }
}

/* --- Table --- */
.eia-table-wrap {
    overflow-x: auto;
    margin: 1.5em 0;
    font-family: var(--eia-sans);
}
.eia-table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--eia-blue-dark);
    color: #fff;
    padding: 10px 18px;
    border-radius: 4px 4px 0 0;
    font-size: 0.78rem;
}
.eia-table-logo {
    font-weight: 700;
    letter-spacing: 0.04em;
    font-size: 0.85rem;
}
.eia-table-source {
    opacity: 0.65;
    font-size: 0.72rem;
    font-family: var(--eia-mono);
}
.eia-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--eia-border);
    border-top: none;
    border-radius: 0 0 4px 4px;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.eia-table thead tr {
    background: var(--eia-bg);
    border-bottom: 2px solid var(--eia-border);
}
.eia-table th {
    padding: 10px 16px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--eia-grey);
    text-align: left;
}
.eia-table tbody tr {
    border-bottom: 1px solid #eceff1;
    transition: background 0.12s;
}
.eia-table tbody tr:last-child { border-bottom: none; }
.eia-table tbody tr:hover { background: var(--eia-blue-light); }
.eia-table td {
    padding: 11px 16px;
    vertical-align: middle;
}
.eia-table .eia-name   { font-weight: 600; color: var(--eia-text); }
.eia-table .eia-value  { font-family: var(--eia-mono); font-weight: 600; color: var(--eia-blue); font-size: 1rem; }
.eia-table .eia-unit   { color: var(--eia-grey); font-size: 0.82rem; }
.eia-table .eia-freq   { color: #90a4ae; font-size: 0.8rem; font-family: var(--eia-mono); }
.eia-table .eia-period { color: #90a4ae; font-size: 0.8rem; font-family: var(--eia-mono); }

/* Dark mode — table */
@media (prefers-color-scheme: dark) {
    .eia-table { background: #0a1929; border-color: #1e3a5f; }
    .eia-table thead tr { background: #0d2137; border-color: #1e3a5f; }
    .eia-table tbody tr { border-color: #1e3a5f; }
    .eia-table tbody tr:hover { background: #0d2137; }
    .eia-table .eia-name  { color: #cfe8ff; }
    .eia-table .eia-value { color: #4da3ff; }
    .eia-table .eia-unit  { color: #546e7a; }
    .eia-table .eia-freq, .eia-table .eia-period { color: #37474f; }
    .eia-table-header { background: #041629; }
}

/* --- Chart --- */
.eia-chart-wrap {
    margin: 1.5em 0;
    padding: 18px 20px 12px;
    background: #fff;
    border: 1px solid var(--eia-border);
    border-top: 3px solid var(--eia-blue);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(21,101,192,0.07);
    font-family: var(--eia-sans);
}
.eia-chart-title {
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--eia-grey);
    margin-bottom: 12px;
}
.eia-chart-unit {
    font-family: var(--eia-mono);
    font-size: 0.75rem;
    font-weight: 400;
    color: #90a4ae;
}

/* Dark mode — chart */
@media (prefers-color-scheme: dark) {
    .eia-chart-wrap {
        background: #0a1929;
        border-color: #1e3a5f;
        border-top-color: #4da3ff;
    }
    .eia-chart-title { color: #78909c; }
}

/* --- Attribution --- */
.eia-attribution {
    font-size: 0.7rem;
    color: #90a4ae;
    margin-top: 6px;
    text-align: right;
}
.eia-attribution a {
    color: var(--eia-blue);
    text-decoration: none;
}
.eia-attribution a:hover { text-decoration: underline; }

/* --- Error --- */
.eia-error {
    color: var(--eia-red);
    font-style: italic;
    font-size: 0.85rem;
}