:root {
    --yih-bg-dark: #050510;
    --yih-bg-card: #121226;
    --yih-bg-card-hover: #1c1c38;
    --yih-accent-gold: #d4af37;
    --yih-accent-gold-hover: #f2c94c;
    --yih-text-main: #d1d5db;
    --yih-text-light: #ffffff;
    --yih-border-color: rgba(212, 175, 55, 0.2);
    
    --yih-font-heading: 'Playfair Display', serif;
    --yih-font-body: 'Lato', sans-serif;
    
    --yih-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--yih-bg-dark);
    color: var(--yih-text-main);
    font-family: var(--yih-font-body);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--yih-font-heading);
    color: var(--yih-text-light);
    font-weight: 700;
}

a {
    color: var(--yih-accent-gold);
    text-decoration: none;
    transition: var(--yih-transition);
}

a:hover {
    color: var(--yih-accent-gold-hover);
}

/* Header */
.yih-site-header {
    background-color: rgba(5, 5, 16, 0.95);
    border-bottom: 1px solid var(--yih-border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.yih-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.yih-logo-area {
    display: flex;
    align-items: center;
    gap: 15px;
}

.yih-logo-abbr {
    font-family: var(--yih-font-heading);
    font-size: 2rem;
    color: var(--yih-accent-gold);
    font-weight: 700;
    border: 2px solid var(--yih-accent-gold);
    padding: 5px 10px;
    letter-spacing: 2px;
}

.yih-logo-text {
    display: flex;
    flex-direction: column;
}

.yih-brand-name {
    font-family: var(--yih-font-heading);
    font-size: 1.5rem;
    color: var(--yih-text-light);
    line-height: 1.2;
}

.yih-brand-sub {
    font-size: 0.85rem;
    color: var(--yih-accent-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.yih-header-badge span {
    background-color: var(--yih-bg-card);
    border: 1px solid var(--yih-border-color);
    padding: 8px 15px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--yih-accent-gold);
    border-radius: 20px;
}

/* Page Content */
.yih-page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.yih-grand-intro {
    padding: 100px 0;
    text-align: center;
    border-bottom: 1px solid var(--yih-border-color);
}

.yih-intro-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.yih-intro-kicker {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--yih-accent-gold);
    margin-bottom: 20px;
}

.yih-intro-heading {
    font-size: 4rem;
    margin-bottom: 30px;
    line-height: 1.1;
}

.yih-intro-desc {
    font-size: 1.1rem;
    color: var(--yih-text-main);
    margin-bottom: 60px;
}

.yih-intro-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.yih-stat-box {
    background-color: var(--yih-bg-card);
    padding: 25px;
    border: 1px solid var(--yih-border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--yih-transition);
}

.yih-stat-box:hover {
    transform: translateY(-5px);
    background-color: var(--yih-bg-card-hover);
    border-color: var(--yih-accent-gold);
}

.yih-stat-lbl {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--yih-text-main);
    margin-bottom: 10px;
}

.yih-stat-val {
    font-family: var(--yih-font-heading);
    font-size: 1.2rem;
    color: var(--yih-accent-gold);
}

/* Feature Blocks */
.yih-feature-block {
    padding: 100px 0;
    border-bottom: 1px solid var(--yih-border-color);
}

.yih-block-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.yih-block-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.yih-block-intro {
    font-size: 1.05rem;
}

.yih-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.yih-detail-card {
    background-color: var(--yih-bg-card);
    border: 1px solid var(--yih-border-color);
    padding: 40px 30px;
    border-radius: 8px;
    transition: var(--yih-transition);
}

.yih-detail-card:hover {
    transform: translateY(-5px);
    background-color: var(--yih-bg-card-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: var(--yih-accent-gold);
}

.yih-card-kicker {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--yih-accent-gold);
    margin-bottom: 15px;
}

.yih-card-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.yih-card-text {
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.yih-card-list {
    list-style: none;
}

.yih-card-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--yih-text-light);
}

.yih-card-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--yih-accent-gold);
    font-size: 1.2rem;
    line-height: 1;
}

/* Footer */
.yih-site-footer {
    background-color: #030308;
    padding: 80px 20px 30px;
    border-top: 1px solid var(--yih-border-color);
}

.yih-footer-top {
    max-width: 1200px;
    margin: 0 auto 50px;
    text-align: center;
}

.yih-footer-slogan {
    font-size: 2rem;
    color: var(--yih-accent-gold);
}

.yih-footer-middle {
    max-width: 1200px;
    margin: 0 auto 50px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px;
}

.yih-footer-col-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--yih-text-light);
}

.yih-footer-text {
    font-size: 0.9rem;
    color: var(--yih-text-main);
}

.yih-footer-contacts {
    list-style: none;
    font-size: 0.9rem;
}

.yih-footer-contacts li {
    margin-bottom: 15px;
}

.yih-contact-lbl {
    color: var(--yih-accent-gold);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 2px;
}

.yih-footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.yih-footer-nav {
    display: flex;
    gap: 20px;
}

.yih-f-link {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.yih-copyright {
    font-size: 0.85rem;
    color: rgba(209, 213, 219, 0.5);
}

/* Responsive */
@media (max-width: 992px) {
    .yih-intro-stats-grid,
    .yih-cards-grid,
    .yih-footer-middle {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .yih-header-inner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .yih-intro-heading {
        font-size: 2.8rem;
    }
    
    .yih-intro-stats-grid,
    .yih-cards-grid,
    .yih-footer-middle {
        grid-template-columns: 1fr;
    }
    
    .yih-footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}