:root {
    --sdtl-bg-main: #06110a;
    --sdtl-bg-alt: #0a1b10;
    --sdtl-accent: #c5a059;
    --sdtl-accent-hover: #e0be77;
    --sdtl-text: #e8f0ec;
    --sdtl-text-muted: #a3b8ad;
    --sdtl-card-bg: rgba(14, 38, 23, 0.6);
    --sdtl-border: #234533;
    
    --sdtl-font-head: 'Playfair Display', serif;
    --sdtl-font-body: 'Lato', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--sdtl-bg-main);
    color: var(--sdtl-text);
    font-family: var(--sdtl-font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

.sdtl-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.sdtl-top-bar {
    background-color: rgba(6, 17, 10, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--sdtl-border);
    padding: 15px 0;
}

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

.sdtl-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sdtl-brand-logo {
    font-family: var(--sdtl-font-head);
    font-size: 24px;
    font-weight: 700;
    color: var(--sdtl-bg-main);
    background-color: var(--sdtl-accent);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.sdtl-brand-text {
    display: flex;
    flex-direction: column;
}

.sdtl-brand-name {
    font-family: var(--sdtl-font-head);
    font-size: 20px;
    font-weight: 700;
    color: var(--sdtl-accent);
    line-height: 1.2;
}

.sdtl-brand-sub {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--sdtl-text-muted);
}

.sdtl-badge {
    border: 1px solid var(--sdtl-accent);
    color: var(--sdtl-accent);
    padding: 6px 12px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 30px;
    font-weight: 700;
}

/* Hero */
.sdtl-hero-area {
    padding: 120px 0 80px;
    background: radial-gradient(circle at top right, #11301c, #06110a);
    min-height: 80vh;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--sdtl-border);
}

.sdtl-hero-label {
    display: inline-block;
    color: var(--sdtl-accent);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.sdtl-hero-label::before {
    content: "— ";
}

.sdtl-hero-title {
    font-family: var(--sdtl-font-head);
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 30px;
    color: #fff;
    text-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.sdtl-hero-desc {
    font-size: 1.2rem;
    color: var(--sdtl-text-muted);
    max-width: 600px;
    margin-bottom: 60px;
}

.sdtl-hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.sdtl-hero-card {
    border-top: 2px solid var(--sdtl-accent);
    padding-top: 20px;
}

.sdtl-hc-title {
    font-family: var(--sdtl-font-head);
    font-size: 20px;
    color: var(--sdtl-accent);
    margin-bottom: 10px;
}

.sdtl-hc-text {
    font-size: 14px;
    color: var(--sdtl-text-muted);
}

/* Sections */
.sdtl-section {
    padding: 100px 0;
}

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

.sdtl-sec-title {
    font-family: var(--sdtl-font-head);
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-align: center;
    color: #fff;
}

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

/* Grid & Cards */
.sdtl-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.sdtl-card {
    background: var(--sdtl-card-bg);
    border: 1px solid var(--sdtl-border);
    padding: 40px 30px;
    border-radius: 8px;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s;
}

.sdtl-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border-color: var(--sdtl-accent);
}

.sdtl-kicker {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--sdtl-accent);
    display: block;
    margin-bottom: 15px;
}

.sdtl-card-title {
    font-family: var(--sdtl-font-head);
    font-size: 24px;
    margin-bottom: 15px;
    color: #fff;
}

.sdtl-card-text {
    color: var(--sdtl-text-muted);
    margin-bottom: 25px;
    font-size: 15px;
}

.sdtl-list {
    list-style: none;
}

.sdtl-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--sdtl-text);
}

.sdtl-list li::before {
    content: "◆";
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--sdtl-accent);
    font-size: 10px;
}

/* Footer */
.sdtl-bottom-area {
    background-color: #030805;
    padding: 80px 0 30px;
    border-top: 1px solid var(--sdtl-border);
}

.sdtl-bottom-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sdtl-bottom-slogan {
    font-family: var(--sdtl-font-head);
    font-size: 2rem;
    color: var(--sdtl-accent);
    margin-bottom: 50px;
    text-align: center;
}

.sdtl-bottom-cols {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.sdtl-col-title {
    font-family: var(--sdtl-font-head);
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.sdtl-col-text, .sdtl-contact-list {
    color: var(--sdtl-text-muted);
    font-size: 14px;
}

.sdtl-contact-list {
    list-style: none;
}

.sdtl-contact-list li {
    margin-bottom: 10px;
}

.sdtl-bottom-nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    border-top: 1px solid var(--sdtl-border);
    padding-top: 30px;
}

.sdtl-nav-link {
    color: var(--sdtl-text-muted);
    text-decoration: none;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.sdtl-nav-link:hover {
    color: var(--sdtl-accent);
}

.sdtl-bottom-copy {
    text-align: center;
    color: #4a6657;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .sdtl-hero-title {
        font-size: 2.5rem;
    }
    
    .sdtl-sec-title {
        font-size: 2rem;
    }
    
    .sdtl-bottom-nav {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
}