/* BluDNS - Modern Professional Stylesheet */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3399FF;
    --primary-lighter: #E6F2FF;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    --light: #F9FAFB;
    --dark: #1F2937;
    --gray: #6B7280;
    --gray-light: #E5E7EB;
    --border: #D1D5DB;
    --white: #FFFFFF;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--dark);
    background: linear-gradient(135deg, #F9FAFB 0%, #E5E7EB 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar - Modern Design */
.navbar {
    background: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    color: var(--gray);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.3s;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-lighter);
}

/* Hero Section - Modern Gradient */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="1" fill="white" opacity="0.1"/></svg>');
    opacity: 0.3;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    position: relative;
}

/* Buttons - Modern 3D Effect */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.btn-success {
    background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #EF4444 0%, #F87171 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
    color: white;
}

.btn-secondary {
    background: var(--gray-light);
    color: var(--dark);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Cards - Modern Elevated Design */
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
    padding: 1.25rem 1.5rem;
    border-bottom: 2px solid var(--primary-lighter);
    font-weight: 600;
    color: var(--dark);
}

.card-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.75rem;
}

.card-footer {
    background: var(--light);
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

/* Forms - Modern Clean Design */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.9rem;
}

.form-control, .form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
    background: var(--white);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.form-text {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray);
}

/* Alerts - Modern Design with Icons */
.alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: var(--radius);
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    border-color: var(--success);
    color: #065F46;
}

.alert-danger {
    background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
    border-color: var(--danger);
    color: #991B1B;
}

.alert-warning {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border-color: var(--warning);
    color: #92400E;
}

.alert-info {
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
    border-color: var(--info);
    color: #1E40AF;
}

/* Tables - Modern Striped Design */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
    font-weight: 600;
    color: var(--dark);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.table-striped tbody tr:nth-child(odd) {
    background: var(--light);
}

.table-hover tbody tr {
    transition: all 0.2s;
}

.table-hover tbody tr:hover {
    background: var(--primary-lighter);
    transform: scale(1.01);
}

/* Badges - Modern Pills */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.badge-success {
    background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    color: white;
}

.badge-danger {
    background: linear-gradient(135deg, #EF4444 0%, #F87171 100%);
    color: white;
}

.badge-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
    color: var(--dark);
}

.badge-info {
    background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%);
    color: white;
}

.badge-secondary {
    background: var(--gray-light);
    color: var(--gray);
}

/* Stats Cards - Modern Dashboard */
.card-body.text-center h2,
.card-body.text-center h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.col {
    flex: 1;
    padding: 0 12px;
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; padding: 0 12px; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; padding: 0 12px; }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 12px; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 12px; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; padding: 0 12px; }
.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 12px; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; padding: 0 12px; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 12px; }
.col-9 { flex: 0 0 75%; max-width: 75%; padding: 0 12px; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; padding: 0 12px; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; padding: 0 12px; }
.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 12px; }

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

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

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

.card, .alert {
    animation: fadeIn 0.5s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .col, .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
    .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .card-body.text-center h2,
    .card-body.text-center h3 {
        font-size: 2rem;
    }
}