:root {
    --primary-color: #5617e8;
    --secondary-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #467aaf;
    --card-shadow: 0 10px 25px rgba(0,0,0,0.08);
    --card-shadow-hover: 0 20px 40px rgba(0,0,0,0.12);
}

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

body { 
    background: linear-gradient(135deg, #5617e8 0%, #f59e0b 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header Styles */
.site-header {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    color: white;
    padding: 1rem 0;
    box-shadow: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background: rgba(255,255,255,0.95);
    color: var(--dark-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.site-logo {
    max-height: 40px;
    max-width: 150px;
    object-fit: contain;
}

.navbar-brand {
    color: white !important;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.site-header.scrolled .navbar-brand {
    color: var(--dark-color) !important;
    text-shadow: none;
}

.navbar-nav .nav-link {
    color: white !important;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem !important;
    border-radius: 12px;
    margin: 0 0.25rem;
    position: relative;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.site-header.scrolled .navbar-nav .nav-link {
    color: var(--dark-color) !important;
    text-shadow: none;
}

.site-header.scrolled .navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: rgba(59, 130, 246, 0.1);
    text-shadow: none;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

.site-header.scrolled .navbar-nav .nav-link::after {
    background: var(--primary-color);
}

/* Navbar Toggle */
.navbar-toggler {
    border: none;
    color: white !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.navbar-toggler:focus {
    box-shadow: none;
}

.site-header.scrolled .navbar-toggler {
    color: var(--dark-color) !important;
    text-shadow: none;
}

/* Main Content */
.main-content {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    margin: 2rem auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    overflow: hidden;
    max-width: 1200px;
    margin-top: 100px;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #5617e8 0%, #f59e0b 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 1.3rem;
    opacity: 0.95;
    font-weight: 400;
    position: relative;
    z-index: 1;
}

       /* Buttons */
       .btn-primary {
           background: var(--primary-color) !important;
           border-color: var(--primary-color) !important;
           color: white !important;
           font-weight: 600;
           padding: 0.75rem 2rem;
           border-radius: 12px;
           transition: all 0.3s ease;
           box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
       }
       
       .btn-primary:hover {
           background: #5617e8 !important;
           transform: translateY(-2px);
           box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
       }
       
       .btn-outline-primary {
           border-color: var(--primary-color) !important;
           color: var(--primary-color) !important;
           background: transparent !important;
           font-weight: 600;
           padding: 0.75rem 2rem;
           border-radius: 12px;
           transition: all 0.3s ease;
       }
       
       .btn-outline-primary:hover {
           background: var(--primary-color) !important;
           border-color: var(--primary-color) !important;
           color: white !important;
           transform: translateY(-2px);
           box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
       }
       
       .btn-secondary {
           background: var(--secondary-color) !important;
           border-color: var(--secondary-color) !important;
           color: white !important;
       }
       
       .btn-success {
           background: var(--success-color) !important;
           border-color: var(--success-color) !important;
       }
       
       .btn-danger {
           background: var(--danger-color) !important;
           border-color: var(--danger-color) !important;
       }

/* Cards */
.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #5617e8);
    color: white;
    border: none;
    padding: 1.5rem;
    font-weight: 600;
}

/* Footer */
.site-footer {
    background: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-bottom {
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .page-subtitle {
        font-size: 1.1rem;
    }
    
    .main-content {
        margin: 1rem;
        margin-top: 80px;
    }
    
    .navbar-nav .nav-link {
        padding: 0.4rem 0.8rem !important;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.3rem 0.6rem !important;
        font-size: 0.8rem;
    }
    
    .btn-primary {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}