:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --accent-color: #60a5fa;
    --background-color: #f0f9ff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --success-color: #059669;
    --winner-gold: #fbbf24;
    --winner-silver: #94a3b8;
    --winner-bronze: #b45309;
}

body {
    background-color: var(--background-color);
    min-height: 100vh;
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
}

.container {
    padding: 2rem;
}

/* Header Styles */
h1 {
    color: var(--text-primary);
    font-weight: 800;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Button Styles */
.btn {
    min-width: 200px;
    margin: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 600;
    border-radius: 12px;
    padding: 0.8rem 1.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.1);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.2);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    box-shadow: 0 4px 6px rgba(5, 150, 105, 0.1);
}

.btn-success:hover {
    background-color: #047857;
    border-color: #047857;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(5, 150, 105, 0.2);
}

/* Winners Podium Styles */
.winners-podium {
    padding: 3rem 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 100%);
    border-radius: 20px;
    margin: 2rem 0;
}

.podium-place {
    text-align: center;
    padding: 1rem;
}

.trophy {
    font-size: 4rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.trophy:hover {
    transform: translateY(-5px) rotate(5deg);
}

.winner-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    height: 100%;
}

.winner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.first .winner-card {
    border-top: 5px solid var(--winner-gold);
    transform: translateY(-20px);
}

.second .winner-card {
    border-top: 5px solid var(--winner-silver);
}

.third .winner-card {
    border-top: 5px solid var(--winner-bronze);
}

/* Project Grid Styles */
.project-card {
    background: white;
    padding: 1.8rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.project-card h3 {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.project-card .btn {
    margin: 0;
    width: 100%;
    border-radius: 10px;
}

.project-card-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Navigation Buttons */
.nav-buttons {
    margin-top: 2rem;
}

.nav-buttons .btn {
    margin: 0.5rem;
    min-width: 150px;
}

/* Animations */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .podium-place {
        margin-bottom: 2rem;
    }

    .winner-card {
        max-width: 300px;
        margin: 0 auto;
    }

    .project-card {
        margin-bottom: 1rem;
    }

    .btn {
        min-width: 160px;
        padding: 0.6rem 1.2rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 6px;
    border: 3px solid var(--background-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

h2 {
    text-align: center;
}