/* =============================================
   seat-calculator.css — UK Seat Calculator
   Scoped under body.seat-calculator, prefix: sc-
   Requires: editorial-base.css + polls-editorial.css
   ============================================= */

body.seat-calculator {
    background: var(--ed-color-surface);
    font-family: var(--ed-font-sans);
    color: var(--ed-color-body);
    -webkit-font-smoothing: antialiased;
}

.sc-wrap {
    padding: 48px 32px 64px;
}

/* ---- Masthead ---- */
.sc-masthead { margin-bottom: 32px; max-width: 700px; }
.sc-kicker {
    font-family: var(--ed-font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ed-color-text);
    margin: 0 0 8px 0;
}
.sc-masthead-rule {
    border: none;
    border-top: 3px solid var(--ed-color-text);
    margin: 0 0 16px 0;
}
.sc-headline {
    font-family: var(--ed-font-serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--ed-color-text);
    line-height: 1.15;
    margin: 0 0 6px 0;
}
.sc-subtitle {
    font-family: var(--ed-font-sans);
    font-size: 14px;
    color: var(--ed-color-secondary);
    margin: 0;
    line-height: 1.5;
}

/* ---- Section dividers ---- */
.sc-rule {
    border: none;
    border-top: 1px solid var(--ed-color-border);
    margin: 40px 0;
}

.sc-section-label {
    font-family: var(--ed-font-sans);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ed-color-meta);
    margin: 0 0 16px 0;
}

/* ---- Chart heading ---- */
.sc-chart-heading {
    font-family: var(--ed-font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--ed-color-text);
    margin: 0 0 4px 0;
    line-height: 1.2;
}
.sc-chart-subtext {
    font-family: var(--ed-font-sans);
    font-size: 13px;
    color: var(--ed-color-secondary);
    margin: 0 0 16px 0;
}

/* ---- Swingometer banner ---- */
.sc-cta-banner {
    border: 1px solid var(--ed-color-border);
    padding: 16px 20px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.sc-cta-banner-title {
    font-family: var(--ed-font-sans);
    font-size: 14px;
    font-weight: 700;
    color: var(--ed-color-text);
    margin-bottom: 4px;
}
.sc-cta-banner-desc {
    font-family: var(--ed-font-sans);
    font-size: 12px;
    color: var(--ed-color-secondary);
    line-height: 1.4;
}
.sc-cta-banner-link {
    flex-shrink: 0;
    font-family: var(--ed-font-sans);
    font-size: 12px;
    font-weight: 600;
    color: var(--ed-color-text);
    text-decoration: underline;
    text-underline-offset: 2px;
    white-space: nowrap;
}

/* ---- Poll selection section ---- */
.sc-section-heading {
    font-family: var(--ed-font-serif);
    font-size: 18px;
    font-weight: 700;
    color: var(--ed-color-text);
    margin: 0 0 4px 0;
}
.sc-section-desc {
    font-family: var(--ed-font-sans);
    font-size: 13px;
    color: var(--ed-color-secondary);
    margin: 0 0 16px 0;
}

/* ---- Share section ---- */
.sc-share-section {
    margin-top: 16px;
    padding: 14px;
    border: 1px solid var(--ed-color-border-light);
    display: none;
}
.sc-share-section h3 {
    margin: 0 0 10px 0;
    font-family: var(--ed-font-sans);
    font-size: 14px;
    font-weight: 700;
    color: var(--ed-color-text);
}

/* ---- Constituency filters ---- */
.sc-filter-panel {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--ed-color-border);
}
.sc-filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}
.sc-filter-label {
    display: block;
    font-family: var(--ed-font-sans);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ed-color-meta);
    margin-bottom: 6px;
}
.sc-filter-input,
.sc-filter-select {
    width: 100%;
    padding: 8px 12px;
    font-family: var(--ed-font-sans);
    font-size: 13px;
    border: 1px solid var(--ed-color-border);
    border-radius: 2px;
    background: var(--ed-color-surface);
    color: var(--ed-color-body);
}
.sc-filter-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23999'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 10px 6px;
    padding-right: 28px;
}
.sc-filter-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.sc-filter-count {
    font-family: var(--ed-font-sans);
    font-size: 12px;
    color: var(--ed-color-meta);
}

/* ---- Methodology ---- */
.sc-methodology {
    font-family: var(--ed-font-sans);
    font-size: 14px;
    color: var(--ed-color-body);
    line-height: 1.7;
}
.sc-methodology ul {
    padding-left: 20px;
    margin: 8px 0;
}
.sc-methodology li {
    margin-bottom: 6px;
}

/* ---- Footer text ---- */
.sc-footer-text {
    font-family: var(--ed-font-sans);
    font-size: 11px;
    color: var(--ed-color-muted);
    line-height: 1.6;
}

/* ---- Links ---- */
.sc-wrap a {
    color: var(--ed-color-text);
    text-decoration: underline;
    text-decoration-color: #CCCCCC;
    text-underline-offset: 2px;
    transition: text-decoration-color 0.15s;
}
.sc-wrap a:hover { text-decoration-color: var(--ed-color-text); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sc-wrap { padding: 32px 16px 48px; }
    .sc-headline { font-size: 26px; }
    .sc-rule { margin: 32px 0; }
    .sc-cta-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .sc-headline { font-size: 24px; }
    .sc-rule { margin: 24px 0; }
}