:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    position: relative;
}

.bg-gradient-primary {
    background: var(--primary-gradient) !important;
}

.bg-gradient-secondary {
    background: var(--secondary-gradient) !important;
}

.bg-gradient-success {
    background: var(--success-gradient) !important;
}

.navbar {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95) !important;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    position: relative;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
}

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

.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 10px 20px;
    transition: var(--transition);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.rounded-pill {
    border-radius: 50px !important;
}

.form-control,
.form-select {
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    padding: 12px 15px;
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-control-lg {
    font-size: 1rem;
    padding: 15px 20px;
}

.hero-section {
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.min-vh-50 {
    min-height: 50vh;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    border-radius: 20px;
}

.loader-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

.animate-slide-up {
    animation: slideUp 0.4s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.alert {
    border-radius: 10px;
    border: none;
    animation: slideUp 0.3s ease-out;
}

.footer {
    margin-top: auto;
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%) !important;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

.counter {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-image-wrapper {
    position: relative;
    padding: 40px;
}

.hero-image-wrapper i {
    filter: drop-shadow(0 10px 30px rgba(102, 126, 234, 0.3));
}

@media (max-width: 768px) {
    .hero-section {
        padding: 50px 0;
    }

    .display-4 {
        font-size: 2rem;
    }

    .display-1 {
        font-size: 4rem;
    }

    .card-body {
        padding: 1.5rem !important;
    }
}

.input-group .btn-outline-secondary {
    border-color: #ced4da;
}

.input-group .btn-outline-secondary:hover {
    background-color: #f8f9fa;
    border-color: #adb5bd;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a72d8 0%, #6a4190 100%);
}

.btn-outline-dark.rounded-circle {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50% !important;
    transition: var(--transition);
}

.btn-outline-dark.rounded-circle:hover {
    transform: scale(1.1);
    background-color: #212529;
    color: white;
}