/* Explain: Styles for site header, section kickers, filter buttons, form elements, CTA panel, and footer links. */
.site-header {
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--accent-hover);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.section-kicker::before {
    display: inline-block;
    width: 2.2rem;
    height: 2px;
    background: var(--accent-color);
    content: "";
}

.filter-btn {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    background: var(--surface-color);
    text-align: left;
    box-shadow: var(--shadow-card);
    transition: all 300ms ease;
}

.filter-btn img {
    aspect-ratio: 4 / 3;
    width: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
}

.filter-btn i {
    color: var(--accent-color);
    font-size: 0.8rem;
    transition: color 300ms ease;
}

.filter-btn-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 0.8rem;
    color: var(--text-color);
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.35;
}

.filter-btn:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-soft);
}

.filter-btn:hover img {
    transform: scale(1.06);
}

.filter-btn.is-active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color), var(--shadow-soft);
}

.filter-btn.is-active .filter-btn-label {
    color: var(--accent-hover);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.form-status.success {
    color: #1F7A4D;
}

.form-status.error {
    color: #B4462F;
}

.cta-panel {
    background:
        radial-gradient(circle at 88% 12%, rgba(245, 130, 32, 0.24), transparent 22rem),
        linear-gradient(135deg, #0F2A43, #173E5E);
}

.footer-link {
    color: var(--footer-text);
    transition: color 300ms ease;
}

.footer-link:hover {
    color: #ffffff;
}