:root {
    --brand-brown: #A1887F;
    --brand-blue: #4DD0E1;
    --brand-green: #81C784;
    --brand-black: #212121;
    --brand-gray: #F5F5F5;
    --text-dark: #333333;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    background-color: #fff;
    line-height: 1.6;
}

.bg-brand-brown { background-color: var(--brand-brown); color: white; }
.bg-brand-blue { background-color: var(--brand-blue); color: white; }
.bg-brand-green { background-color: var(--brand-green); color: white; }
.bg-brand-black { background-color: var(--brand-black); color: white; }

.text-brand-brown { color: var(--brand-brown); }
.text-brand-blue { color: var(--brand-blue); }
.text-brand-green { color: var(--brand-green); }

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eee;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--brand-black) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--brand-black) !important;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--brand-brown) !important;
}

.hero-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    position: relative;
    overflow: hidden;
}

.section-title {
    font-weight: 800;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--brand-brown);
}

.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.tech-data {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

footer {
    background-color: var(--brand-black);
    color: #aaa;
    padding: 60px 0 30px;
}

footer h5 {
    color: white;
    margin-bottom: 20px;
}

.footer-link {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-link:hover {
    color: var(--brand-blue);
}

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

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