:root {
    --bg-dark: #263238;
    --gold-focus: #FFD600;
    --blue-interactive: #00BCD4;
    --white-fiber: #ECEFF1;
    --text-muted: #90A4AE;
    --border-color: rgba(255, 214, 0, 0.2);
}

body {
    background-color: var(--bg-dark);
    color: var(--white-fiber);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.mono-font {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Navigation */
.navbar {
    background-color: rgba(38, 50, 56, 0.95);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--gold-focus) !important;
}

.nav-link {
    color: var(--white-fiber) !important;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin: 0 1rem;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--gold-focus) !important;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 3rem;
    border-left: 4px solid var(--gold-focus);
    padding-left: 1.5rem;
}

/* Cards & Elements */
.sl-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    height: 100%;
}

.sl-card:hover {
    border-color: var(--gold-focus);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

.text-gold { color: var(--gold-focus); }
.text-blue { color: var(--blue-interactive); }

/* Buttons */
.btn-sl {
    border: 1px solid var(--gold-focus);
    color: var(--gold-focus);
    background: transparent;
    padding: 0.8rem 2rem;
    border-radius: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.btn-sl:hover {
    background: var(--gold-focus);
    color: var(--bg-dark);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 50px 0;
    background: #1a2327;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 1s forwards;
}