:root {
    --rvbn-bg: #0b0c10;
    --rvbn-bg-alt: #12141a;
    --rvbn-card-bg: #1a1e24;
    --rvbn-card-hover: #22272e;
    --rvbn-gold: #d4af37;
    --rvbn-gold-hover: #f1cb58;
    --rvbn-text: #fcfaf2;
    --rvbn-text-muted: #b0b2b8;
    --rvbn-font-heading: 'Playfair Display', serif;
    --rvbn-font-body: 'Lato', sans-serif;
    --rvbn-border-radius: 8px;
    --rvbn-transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--rvbn-bg);
    color: var(--rvbn-text);
    font-family: var(--rvbn-font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header */
.rvbn-topbar {
    background-color: rgba(11, 12, 16, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.rvbn-topbar-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rvbn-logomark {
    font-family: var(--rvbn-font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--rvbn-gold);
    letter-spacing: 2px;
}

.rvbn-brand-info {
    text-align: center;
    display: none;
}

@media (min-width: 768px) {
    .rvbn-brand-info {
        display: block;
    }
}

.rvbn-brand-title {
    font-family: var(--rvbn-font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.rvbn-brand-subtitle {
    font-size: 0.8rem;
    color: var(--rvbn-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.rvbn-age-badge {
    border: 1px solid var(--rvbn-gold);
    color: var(--rvbn-gold);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Main Content Padding for Fixed Header */
.rvbn-content {
    padding-top: 80px;
}

/* Hero Section */
.rvbn-hero-stage {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    background: radial-gradient(circle at center, #1a1e24 0%, #0b0c10 70%);
    position: relative;
    overflow: hidden;
}

.rvbn-hero-stage::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(212, 175, 55, 0.05) 0%, transparent 100%);
    pointer-events: none;
}

.rvbn-hero-inner {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.rvbn-hero-kicker {
    display: block;
    color: var(--rvbn-gold);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.rvbn-hero-heading {
    font-family: var(--rvbn-font-heading);
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 25px;
    color: var(--rvbn-gold);
    text-shadow: 0 4px 20px rgba(212, 175, 55, 0.2);
}

.rvbn-hero-desc {
    font-size: 1.2rem;
    color: var(--rvbn-text-muted);
    margin-bottom: 50px;
}

.rvbn-hero-highlights {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
}

@media (min-width: 768px) {
    .rvbn-hero-highlights {
        grid-template-columns: repeat(3, 1fr);
    }
}

.rvbn-highlight-box {
    background-color: rgba(26, 30, 36, 0.6);
    border: 1px solid rgba(212, 175, 55, 0.2);
    padding: 20px;
    border-radius: var(--rvbn-border-radius);
    transition: var(--rvbn-transition);
}

.rvbn-highlight-box:hover {
    border-color: var(--rvbn-gold);
    transform: translateY(-5px);
}

.rvbn-highlight-title {
    display: block;
    font-family: var(--rvbn-font-heading);
    font-size: 1.2rem;
    color: var(--rvbn-gold);
    margin-bottom: 5px;
}

.rvbn-highlight-text {
    font-size: 0.95rem;
    color: var(--rvbn-text);
}

/* Sections */
.rvbn-section-block {
    padding: 100px 20px;
}

.rvbn-section-alt {
    background-color: var(--rvbn-bg-alt);
}

.rvbn-section-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.rvbn-section-title {
    font-family: var(--rvbn-font-heading);
    font-size: 2.5rem;
    color: var(--rvbn-gold);
    margin-bottom: 20px;
    text-align: center;
}

.rvbn-section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
    font-size: 1.1rem;
    color: var(--rvbn-text-muted);
}

/* Grids */
.rvbn-grid-three {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 30px;
}

@media (min-width: 768px) {
    .rvbn-grid-three {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Cards */
.rvbn-info-card, .rvbn-feature-card {
    background-color: var(--rvbn-card-bg);
    padding: 40px 30px;
    border-radius: var(--rvbn-border-radius);
    border-top: 3px solid transparent;
    transition: var(--rvbn-transition);
}

.rvbn-info-card:hover, .rvbn-feature-card:hover {
    background-color: var(--rvbn-card-hover);
    border-top-color: var(--rvbn-gold);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.rvbn-card-kicker, .rvbn-fcard-kicker {
    display: inline-block;
    color: var(--rvbn-gold);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
    background-color: rgba(212, 175, 55, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
}

.rvbn-card-title, .rvbn-fcard-title {
    font-family: var(--rvbn-font-heading);
    font-size: 1.6rem;
    margin-bottom: 15px;
}

.rvbn-card-desc, .rvbn-fcard-desc {
    color: var(--rvbn-text-muted);
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.rvbn-card-list, .rvbn-fcard-list {
    list-style: none;
}

.rvbn-card-list li, .rvbn-fcard-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--rvbn-text);
}

.rvbn-card-list li::before, .rvbn-fcard-list li::before {
    content: '•';
    color: var(--rvbn-gold);
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2rem;
    line-height: 1;
}

/* Footer */
.rvbn-base {
    background-color: #050608;
    padding: 80px 20px 30px 20px;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.rvbn-base-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.rvbn-base-slogan {
    font-family: var(--rvbn-font-heading);
    font-size: 2.5rem;
    color: var(--rvbn-gold);
    text-align: center;
    margin-bottom: 60px;
}

.rvbn-base-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

@media (min-width: 768px) {
    .rvbn-base-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.rvbn-base-col-title {
    font-family: var(--rvbn-font-heading);
    color: var(--rvbn-gold);
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.rvbn-base-text {
    color: var(--rvbn-text-muted);
    font-size: 0.95rem;
    max-width: 400px;
}

.rvbn-base-bottom-flex {
    display: flex;
    flex-direction: column;
    gap: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    margin-bottom: 30px;
}

@media (min-width: 992px) {
    .rvbn-base-bottom-flex {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.rvbn-base-contacts {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

@media (min-width: 768px) {
    .rvbn-base-contacts {
        flex-direction: row;
        gap: 30px;
    }
}

.rvbn-contact-item {
    color: var(--rvbn-text-muted);
    font-size: 0.9rem;
}

.rvbn-base-nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.rvbn-nav-link {
    color: var(--rvbn-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--rvbn-transition);
}

.rvbn-nav-link:hover {
    color: var(--rvbn-gold);
}

.rvbn-copyright {
    text-align: center;
    color: rgba(176, 178, 184, 0.5);
    font-size: 0.85rem;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}