/* ==============================================
   HydroHub 2025 Custom Styles
   Inspired by Hydronexis color scheme
   ============================================== */

/* ============== Color Variables ============== */
:root {
    --primary-blue: #1e4a73;
    --secondary-blue: #2563eb;
    --light-blue: #3b82f6;
    --dark-blue: #1e3a8a;
    --accent-teal: #0d9488;
    --light-teal: #14b8a6;
    --orange-accent: #f97316;
    --gray-light: #f8fafc;
    --gray-medium: #64748b;
    --gray-dark: #334155;
    --success-green: #10b981;
    --warning-orange: #f59e0b;
    --danger-red: #ef4444;
}

/* ============== Global Styles ============== */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--gray-light);
    color: var(--gray-dark);
    line-height: 1.6;
}

/* ============== Navigation Styles ============== */
.navbar-dark.bg-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%) !important;
    box-shadow: 0 2px 10px rgba(30, 74, 115, 0.15);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    display: flex;
    align-items: center;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.navbar-brand i {
    color: var(--light-teal);
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--light-teal) !important;
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    color: var(--light-teal) !important;
}

/* ============== Buttons ============== */
.btn-primary {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--light-blue) 100%);
    border: none;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.35);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-green) 0%, var(--accent-teal) 100%);
    border: none;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--accent-teal) 0%, var(--light-teal) 100%);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border: 2px solid var(--secondary-blue);
    color: var(--secondary-blue);
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background: var(--secondary-blue);
    border-color: var(--secondary-blue);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ============== Cards ============== */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: linear-gradient(135deg, var(--gray-light) 0%, #e2e8f0 100%);
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
    color: var(--primary-blue);
}

.card-img-top {
    transition: all 0.3s ease;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

/* ============== Typography ============== */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-blue);
    font-weight: 700;
}

.display-5, .display-6 {
    color: var(--primary-blue);
    font-weight: 800;
}

.text-primary {
    color: var(--secondary-blue) !important;
}

.lead {
    color: var(--gray-medium);
    font-weight: 500;
}

/* ============== Badges ============== */
.badge {
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
}

.badge.bg-success {
    background: linear-gradient(135deg, var(--success-green) 0%, var(--accent-teal) 100%) !important;
}

.badge.bg-info {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--secondary-blue) 100%) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, var(--warning-orange) 0%, var(--orange-accent) 100%) !important;
}

/* ============== Forms ============== */
.form-control {
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

.form-select {
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.form-select:focus {
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* ============== Hero Section ============== */
.bg-light {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%) !important;
}

/* ============== Table Styles ============== */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table-light {
    background: linear-gradient(135deg, var(--gray-light) 0%, #e2e8f0 100%);
}

.table-hover tbody tr:hover {
    background-color: rgba(37, 99, 235, 0.05);
}

/* ============== Footer ============== */
footer.bg-dark {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%) !important;
}

/* ============== Alerts ============== */
.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(13, 148, 136, 0.1) 100%);
    border-color: var(--success-green);
    color: var(--accent-teal);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border-color: var(--danger-red);
    color: #dc2626;
}

.alert-info {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border-color: var(--secondary-blue);
    color: var(--primary-blue);
}

/* ============== Carousel ============== */
.carousel-inner {
    border-radius: 12px;
    overflow: hidden;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: rgba(30, 74, 115, 0.8);
    border-radius: 50%;
    padding: 1rem;
}

/* ============== Breadcrumb ============== */
.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item a {
    color: var(--secondary-blue);
    text-decoration: none;
    font-weight: 500;
}

.breadcrumb-item a:hover {
    color: var(--primary-blue);
}

/* ============== Modal ============== */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.modal-header {
    background: linear-gradient(135deg, var(--gray-light) 0%, #e2e8f0 100%);
    border-bottom: 1px solid #e2e8f0;
}

/* ============== Dropdown ============== */
.dropdown-menu {
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.dropdown-item:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    color: var(--primary-blue);
}

/* ============== Utilities ============== */
.shadow-sm {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important;
}

.shadow {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1) !important;
}

/* ============== Statistics Cards ============== */
.card.bg-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%) !important;
}

.card.bg-success {
    background: linear-gradient(135deg, var(--success-green) 0%, var(--accent-teal) 100%) !important;
}

.card.bg-info {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--secondary-blue) 100%) !important;
}

/* ============== Image Thumbnails ============== */
.img-thumbnail {
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.img-thumbnail:hover {
    border-color: var(--secondary-blue);
    transform: scale(1.05);
}

/* ============== Responsive Adjustments ============== */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .display-5, .display-6 {
        font-size: 2rem;
    }
}

/* ============== Animation Classes ============== */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

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

.slide-up {
    animation: slideUp 0.6s ease-out;
}

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

/* ============== Custom Components ============== */
.hydro-gradient-bg {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 50%, var(--accent-teal) 100%);
}

.hydro-text-gradient {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--accent-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}