:root {
    --kbc-primary: #d52b1e;
    --kbc-primary-dark: #a61f14;
    --kbc-dark: #1a1a1a;
    --kbc-light: #f7f7f7;
    --kbc-accent: #ffd200;
    --kbc-text: #222;
    --kbc-muted: #6c757d;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--kbc-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1 0 auto;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.navbar-brand .brand-accent {
    color: var(--kbc-primary);
}

.btn-primary {
    background-color: var(--kbc-primary);
    border-color: var(--kbc-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--kbc-primary-dark);
    border-color: var(--kbc-primary-dark);
}

.btn-outline-primary {
    color: var(--kbc-primary);
    border-color: var(--kbc-primary);
}

.btn-outline-primary:hover {
    background-color: var(--kbc-primary);
    border-color: var(--kbc-primary);
}

.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: radial-gradient(circle at 80% 20%, rgba(213, 43, 30, 0.25), transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-weight: 800;
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.1;
}

.hero .lead {
    font-size: 1.25rem;
    opacity: 0.9;
}

.feature-card {
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 12px;
    padding: 1.75rem;
    height: 100%;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    background: #fff;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(213, 43, 30, 0.1);
    color: var(--kbc-primary);
    border-radius: 10px;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.section-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-sub {
    color: var(--kbc-muted);
    margin-bottom: 2.5rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--kbc-primary);
    color: #fff;
    font-weight: 700;
    margin-bottom: 1rem;
}

.faq .accordion-button:not(.collapsed) {
    background-color: rgba(213, 43, 30, 0.05);
    color: var(--kbc-primary-dark);
}

.faq .accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(213, 43, 30, 0.2);
}

footer.site-footer {
    background: var(--kbc-dark);
    color: #bbb;
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

footer.site-footer a {
    color: #ddd;
    text-decoration: none;
}

footer.site-footer a:hover {
    color: #fff;
}

footer .footer-heading {
    color: #fff;
    font-weight: 600;
    margin-bottom: 1rem;
}

.lang-switch a {
    color: inherit;
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.lang-switch a.active {
    background: rgba(213, 43, 30, 0.12);
    color: var(--kbc-primary);
    font-weight: 600;
}

.guide-content h2 {
    margin-top: 2.5rem;
    font-weight: 700;
}

.guide-content h3 {
    margin-top: 1.75rem;
    font-weight: 600;
}

.guide-content p, .guide-content li {
    line-height: 1.75;
}

.callout {
    border-left: 4px solid var(--kbc-primary);
    background: #fff8f7;
    padding: 1rem 1.25rem;
    border-radius: 4px;
    margin: 1.5rem 0;
}

.callout.warning {
    border-left-color: #e0a800;
    background: #fffaf0;
}

.callout.info {
    border-left-color: #0d6efd;
    background: #f0f7ff;
}