:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    background: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-custom {
    background: var(--primary-gradient) !important;
    box-shadow: 0 2px 20px rgba(102, 126, 234, 0.3);
}

.hero-section {
    background: var(--primary-gradient);
    color: white;
    padding: 80px 0;
    border-radius: 0 0 50px 50px;
    margin-bottom: 40px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.hero-section h1 {
    font-weight: 700;
    font-size: 3rem;
}

.card-shortlink {
    border: none;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.card-shortlink:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.input-group-custom {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.input-group-custom input {
    border: none;
    padding: 15px 20px;
    font-size: 1.1rem;
}

.input-group-custom button {
    background: var(--primary-gradient);
    border: none;
    padding: 15px 30px;
    font-weight: 600;
    color: white;
}

.input-group-custom button:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.stats-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    text-align: center;
    border: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-3px);
}

.stats-card i {
    font-size: 2.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.stats-card h3 {
    font-weight: 700;
    color: #333;
}

.stats-card p {
    color: #6c757d;
    margin: 0;
}

.link-short {
    background: #f8f9fa;
    padding: 10px 15px;
    border-radius: 10px;
    display: inline-block;
    font-size: 0.9rem;
    color: #667eea;
    font-weight: 600;
}

.footer {
    background: #2d3436;
    color: white;
    padding: 40px 0;
    margin-top: 60px;
}

.btn-primary {
    background: var(--primary-gradient) !important;
    border: none !important;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

/* Toast custom */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 50px 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .stats-card {
        padding: 15px;
    }
}