/* Enhanced Professional Stylesheet for Upanzi Network */

/* ===========================
   CSS Variables & Design System
   =========================== */
:root {
    /* Bootstrap Color Overrides */
    --bs-primary: #009647;
    --bs-primary-rgb: 0, 150, 71;
    
    /* Brand Colors */
    --primary-color: #009647;
    --primary-dark: #007236;
    --primary-light: #00b856;
    --secondary-color: #afafa7;
    --accent-color: #d97706;

    /* Category Colors */
    --cyber-color: #ad482a;
    --dpg-color: #07694e;
    --connectivity-color: #2563eb;
    --data-color: #7c3aed;
    --health-color: #059669;
    --society-color: #dc2626;

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ===========================
   Base Styles
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    min-height: 90vh;
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-600);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===========================
   Bootstrap Component Overrides
   =========================== */

/* Primary Button Overrides */
.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
    color: white !important;
}

.btn-outline-primary {
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

/* Text color overrides */
.text-primary {
    color: var(--primary-color) !important;
}

.link-primary {
    color: var(--primary-color) !important;
}

.link-primary:hover,
.link-primary:focus {
    color: var(--primary-dark) !important;
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    padding: var(--spacing-md) 0;
}

.navbar.navbar-light {
    background-color: white !important;
    box-shadow: var(--shadow-sm);
}

.navbar.navbar-dark {
    background-color: var(--primary-dark) !important;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    transition: opacity var(--transition-fast);
}

.navbar-light .navbar-brand {
    color: var(--gray-900) !important;
}

.navbar-dark .navbar-brand {
    color: white !important;
}

.navbar-brand:hover {
    opacity: 0.9;
    text-decoration: none;
}

.nav-link {
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    padding: 0.5rem 1rem !important;
}

.navbar-light .nav-link {
    color: var(--gray-700) !important;
}

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

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

.navbar-dark .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
}

.navbar-dark .nav-link:hover,
.navbar-dark .nav-link.active {
    color: white !important;
}

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

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

/* ===========================
   Page Header Section
   =========================== */
.page-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-2xl) 0;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 0;
}

.stats-overview {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: flex-end;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    min-width: 100px;
}

.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
    font-weight: 500;
}

/* ===========================
   Enhanced Search & Filter Section
   =========================== */
.search-filter-section {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.filter-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
}

.search-container {
    position: relative;
}

.search-box {
    position: relative;
    margin-bottom: 0;
}

.search-box input {
    width: 100%;
    padding: 0.75rem 0.875rem 0.75rem 2.75rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: var(--gray-50);
    height: 48px; /* Match filter button height */
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 150, 71, 0.1);
    background: white;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 1rem;
    z-index: 2;
}

.search-clear {
    position: absolute;
    right: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.search-clear:hover {
    color: var(--gray-600);
    background: var(--gray-100);
}

/* Filter Controls Section */
.filter-controls-section {
    height: 100%;
}

.filter-controls-section .btn {
    height: 48px; /* Match search input height */
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    border-width: 2px;
    transition: all var(--transition-base);
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
    background-color: transparent !important;
}

.filter-controls-section .btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

.filter-controls-section .btn:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(0, 150, 71, 0.1) !important;
    background-color: transparent !important;
    color: var(--primary-color) !important;
}

.filter-controls-section .btn:active {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

.filter-controls-section .btn.collapsed .collapse-icon {
    transform: rotate(0deg);
}

.filter-controls-section .btn:not(.collapsed) .collapse-icon {
    transform: rotate(180deg);
}

/* Advanced Filters */
.advanced-filters {
    border-top: 1px solid var(--gray-200);
    padding-top: var(--spacing-md);
}

.filter-section {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid var(--gray-200);
}

.collapse-icon {
    transition: transform var(--transition-base);
}

.collapse-icon.rotated {
    transform: rotate(180deg);
}

/* Filter Status & Actions */
.filter-status {
    border-top: 1px solid var(--gray-200);
    padding-top: var(--spacing-md);
}

.active-filters {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.active-filter-tags {
    display: flex;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.active-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.active-filter-tag .remove {
    cursor: pointer;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.active-filter-tag .remove:hover {
    opacity: 1;
}

.filter-actions {
    display: flex;
    align-items: center;
}

.results-summary {
    text-align: center;
    padding-top: var(--spacing-sm);
}

.results-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Filter Buttons */
.filter-group {
    margin-bottom: var(--spacing-md);
}

.filter-group h6 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.375rem;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.filter-tag {
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--gray-50);
    color: var(--gray-700);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.filter-tag:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 150, 71, 0.05);
    color: var(--primary-color);
}

.filter-tag.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.filter-tag i {
    font-size: 0.6875rem;
}

/* Sort Controls */
.sort-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-controls select {
    padding: 0.4375rem 2rem 0.4375rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--gray-50);
    color: var(--gray-700);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.375rem center;
    background-size: 1rem;
}

.sort-controls select:hover {
    border-color: var(--primary-color);
    background-color: white;
}

/* Clear Filters Button */
.clear-filters {
    padding: 0.4375rem 1rem;
    background-color: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.clear-filters:hover {
    background-color: var(--danger);
    color: white;
    border-color: var(--danger);
}

/* ===========================
   Project Cards
   =========================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.project-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid var(--gray-200);
}

.project-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.project-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: center;
    background-color: var(--gray-50);
    display: block;
    border-bottom: 1px solid var(--gray-200);
    transition: transform var(--transition-base);
}

.project-card:hover .project-card-image {
    transform: scale(1.05);
}

/* Hide broken image icon */
.project-card-image::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background-color: var(--gray-100);
}

/* Ensure SVG and logo images display properly with padding */
.project-card-image[src$=".svg"],
.project-card-image[src*="logo"],
.project-card-image[src*="Logo"] {
    object-fit: contain;
    padding: var(--spacing-lg);
    background-color: white;
}

.project-card-body {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-cybersecurity { background-color: var(--cyber-color); color: white; }
.badge-dpg-dpi { background-color: var(--dpg-color); color: white; }
.badge-connectivity { background-color: var(--connectivity-color); color: white; }
.badge-data-exchange { background-color: var(--data-color); color: white; }
.badge-health-climate-agriculture { background-color: var(--health-color); color: white; }
.badge-technology-society { background-color: var(--society-color); color: white; }

.badge-success { background-color: #d1fae5; color: var(--success); }
.badge-warning { background-color: #fef3c7; color: var(--warning); }
.badge-secondary { background-color: var(--gray-200); color: var(--gray-700); }

.project-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.project-card-description {
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.project-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    font-size: 0.875rem;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.project-tag {
    padding: 0.25rem 0.625rem;
    background-color: var(--gray-100);
    color: var(--gray-600);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.project-card-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
}

.project-card-link:hover {
    color: var(--primary-dark);
    gap: 0.75rem;
    text-decoration: none;
}

/* ===========================
   Pagination
   =========================== */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--gray-200);
    background-color: white;
    color: var(--gray-700);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ===========================
   Modern Breadcrumb
   =========================== */
.breadcrumb-modern {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
    flex-wrap: wrap;
}

.breadcrumb-modern .breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb-modern .breadcrumb-item:not(:last-child)::after {
    content: '/';
    color: var(--gray-400);
    margin-left: 0.5rem;
}

.breadcrumb-modern .breadcrumb-item a {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.breadcrumb-modern .breadcrumb-item a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.breadcrumb-modern .breadcrumb-item a i {
    font-size: 0.75rem;
}

.breadcrumb-modern .breadcrumb-item.active span {
    color: var(--gray-600);
    font-weight: 400;
    padding: 0.375rem 0;
}

/* ===========================
   Project Detail Hero Section
   =========================== */
.project-detail-hero {
    background: linear-gradient(to bottom, #f8faf9 0%, white 100%);
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
    border-bottom: 1px solid var(--gray-200);
}

.project-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.badge-modern i {
    font-size: 0.75rem;
}

.badge-cybersecurity {
    background-color: #fef3f2;
    color: #ad482a;
    border: 1px solid #fecdca;
}

.badge-research {
    background-color: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.badge-status-active {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.project-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 0;
}

.project-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.9375rem;
}

.meta-item i {
    color: var(--primary-color);
    font-size: 1rem;
}

.meta-item strong {
    color: var(--gray-900);
}

/* ===========================
   Project Detail Page
   =========================== */
.project-detail-header {
    background: var(--gray-50);
    color: var(--gray-900);
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
    border-bottom: 1px solid var(--gray-200);
}

.project-detail-header h1 {
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    font-size: 2rem;
    font-weight: 600;
}

.project-image-preview img {
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-image-preview img:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Main Content Area */
.project-main-content {
    background-color: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.project-overview h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.project-description {
    color: var(--gray-700);
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: 0;
}

/* Gallery Section */
.project-gallery-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--gray-200);
}

.project-gallery-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.project-gallery img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    /* border: 1px solid var(--gray-200); */
    /* border-radius: var(--radius-md); */
    background-color: white;
    padding: var(--spacing-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    /* box-shadow: var(--shadow-sm); */
}

.project-gallery img:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

/* Tags Section */
.project-tags-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--gray-200);
}

.project-tags-section h6 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

.project-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-topic-tag {
    padding: 0.375rem 0.75rem;
    background-color: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--gray-200);
}

/* Project Sidebar */
.project-sidebar {
    position: sticky;
    top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-card {
    background-color: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h6 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sidebar Info */
.sidebar-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: 0.9375rem;
    color: var(--gray-900);
    font-weight: 500;
}

/* External Links in Sidebar */
.project-external-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.external-link-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0.875rem;
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.external-link-item:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateX(2px);
}

.external-link-item i {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Sidebar Related Projects */
.sidebar-related-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-related-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0.875rem;
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    color: var(--gray-900);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-related-item:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateX(2px);
}

.related-item-title {
    flex: 1;
    line-height: 1.4;
    font-weight: 500;
}

.sidebar-related-item i {
    font-size: 0.75rem;
    opacity: 0.7;
    flex-shrink: 0;
}

/* Sidebar Links Section */
.sidebar-links-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-link-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 0.875rem;
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    color: var(--gray-900);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-link-item:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateX(2px);
}

.sidebar-link-item i {
    font-size: 0.75rem;
    flex-shrink: 0;
}

.sidebar-link-item span {
    flex: 1;
    line-height: 1.4;
    font-weight: 500;
}


/* ===========================
   About Page Enhancements
   =========================== */
.content-section {
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.section-title {
    color: var(--text-dark);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
}

.values-section {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-top: var(--spacing-lg);
}

.value-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-fast);
}

.value-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.value-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border-radius: 50%;
    flex-shrink: 0;
}

.value-content h6 {
    margin: 0;
    color: var(--text-dark);
}

.value-content small {
    line-height: 1.3;
}

.image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 150, 71, 0.8), rgba(0, 120, 57, 0.6));
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container:hover .image-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    padding: var(--spacing-lg);
}

.overlay-content p {
    font-size: 1.125rem;
    margin: 0;
    font-style: italic;
}

/* Team Cards Enhancement */
.card {
    border: none;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 3px solid var(--bg-light);
    transition: border-color var(--transition-fast);
}

.card:hover img {
    border-color: var(--primary-color);
}

.card-body {
    padding: var(--spacing-lg);
}

.card h5 {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card .text-muted {
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Partners Section Enhancement */
.partners-carousel-container {
    background: var(--bg-light);
    padding: var(--spacing-lg) 0;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.partner-logo {
    max-height: 60px;
    max-width: 120px;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.7);
    transition: all var(--transition-base);
}

.partner-item:hover .partner-logo {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.05);
}

/* Enhanced Footer */
.footer-enhanced {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
    padding: var(--spacing-3xl) 0 0;
    margin-top: var(--spacing-3xl);
    position: relative;
}

.footer-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.footer-brand {
    padding-right: var(--spacing-lg);
}

.footer-tagline {
    color: white;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.footer-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-contact-link:hover {
    color: white;
}

.footer-section {
    height: 100%;
}

.footer-heading {
    color: white;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.3);
}

.footer-subheading {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
    margin-top: var(--spacing-lg);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a, .footer-links span {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: white;
    transform: translateX(3px);
}

.footer-links span {
    cursor: default;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 0.75rem;
}

.partners-track {
    display: flex;
    width: max-content;
    animation: scroll 30s linear infinite;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 1.1rem;
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Footer Bottom */
.footer-bottom {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright, .footer-affiliation {
    margin: 0;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-affiliation a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-affiliation a:hover {
    color: white;
}

/* Legacy Footer Support */
footer {
    background-color: var(--primary-dark) !important;
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

footer h5 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

footer a:hover {
    color: white;
}

/* ===========================
   Professional Partners Section
   =========================== */
.partners-professional {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    padding: var(--spacing-3xl) 0;
    margin: var(--spacing-2xl) 0;
}

.partners-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.partners-intro h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.partners-intro p {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 0;
}

.partners-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.partner-category {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.partner-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.category-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.category-description {
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.category-partners {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.partner-item-professional {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-fast);
}

.partner-item-professional:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.partner-item-professional:hover .partner-name,
.partner-item-professional:hover .partner-description {
    color: white;
}

.partner-logo-professional {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background: white;
    padding: 0.25rem;
    flex-shrink: 0;
}

.partner-info {
    flex-grow: 1;
}

.partner-name {
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 0.25rem 0;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.partner-description {
    font-size: 0.8125rem;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.partnership-cta {
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.partnership-cta:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.partnership-cta:hover .cta-title,
.partnership-cta:hover .cta-description {
    color: white;
}

.partnership-cta:hover .cta-button {
    background: white;
    color: var(--primary-color);
    border-color: white;
}

.cta-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.cta-description {
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    transition: color var(--transition-fast);
}

.cta-button {
    background: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
}

.cta-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Mobile responsiveness for partners section */
@media (max-width: 768px) {
    .partners-intro h2 {
        font-size: 2rem;
    }
    
    .partners-categories {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .partner-category {
        padding: var(--spacing-lg);
    }
    
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .category-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .category-title {
        font-size: 1.25rem;
    }
    
    .partner-item-professional {
        padding: var(--spacing-sm);
    }
    
    .partnership-cta {
        padding: var(--spacing-lg);
    }
    
    .cta-title {
        font-size: 1.25rem;
    }
}

/* Legacy Footer Styles */
footer p {
    color: rgba(255, 255, 255, 0.8);
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ===========================
   Utilities
   =========================== */
.text-center { text-align: center; }
.mt-auto { margin-top: auto; }

/* Loading State */
.loading {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--gray-500);
}

.loading-spinner {
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.empty-state i {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--gray-500);
}

/* ===========================
   Project Detail Header Badges
   =========================== */
.project-badges-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.project-badges-container .badge {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

/* ===========================
   Report Button Styles
   =========================== */
.btn-report {
    background: #2563eb !important;
    color: white !important;
    padding: 0.625rem 1.5rem !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    font-size: 0.9375rem !important;
    border: 2px solid #2563eb !important;
    transition: all var(--transition-base) !important;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    line-height: 1.5;
}

.btn-report:hover {
    background: #1d4ed8 !important;
    border-color: #1d4ed8 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    text-decoration: none !important;
    color: white !important;
}

.btn-report:active {
    transform: translateY(0);
    background: #1e40af !important;
    border-color: #1e40af !important;
}

.btn-report:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.btn-report i {
    font-size: 1rem;
}

.btn-report span {
    font-size: inherit;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 992px) {
    .page-title { font-size: 2rem; }
    .stats-overview {
        justify-content: center;
        margin-top: var(--spacing-lg);
    }
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }

    .navbar-nav {
        padding-top: var(--spacing-sm);
    }

    .nav-item {
        margin-bottom: 0.25rem;
    }

    .project-detail-header h1 {
        font-size: 1.75rem !important;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: var(--spacing-xl) 0;
        text-align: center;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

    .stats-overview {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-md);
    }

    .stat-item {
        min-width: 80px;
        padding: var(--spacing-sm);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .search-filter-section {
        padding: var(--spacing-lg);
    }

    .filter-status {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch !important;
    }

    .filter-actions {
        justify-content: center;
        width: 100%;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .filter-tags {
        justify-content: center;
    }

    .sort-controls select {
        width: 100%;
    }

    /* Project Detail Page Mobile */
    .project-detail-header h1 {
        font-size: 1.5rem !important;
        line-height: 1.3 !important;
    }

    .project-detail-header .btn-report {
        font-size: 0.875rem !important;
        padding: 0.625rem 1.25rem !important;
    }

    /* Badge container - ensure good spacing */
    .project-badges-container {
        gap: 0.5rem !important;
    }

    .project-badges-container .badge {
        margin: 0 !important;
    }

    .project-main-content {
        padding: var(--spacing-lg);
    }

    .project-sidebar {
        position: static;
        margin-top: var(--spacing-lg);
    }

    .project-gallery {
        grid-template-columns: 1fr;
    }

    .project-gallery img {
        height: 200px;
    }
}

@media (max-width: 576px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .project-title {
        font-size: 1.75rem;
    }

    .project-subtitle {
        font-size: 1rem;
    }

    .project-detail-header h1 {
        font-size: 1.375rem !important;
    }

    .project-detail-header .btn-report {
        font-size: 0.8125rem !important;
        padding: 0.5625rem 1rem !important;
    }

    .project-badges-container {
        gap: 0.375rem !important;
    }

    .project-badges-container .badge {
        font-size: 0.8125rem !important;
        padding: 0.375rem 0.625rem !important;
        margin: 0 !important;
    }

    .breadcrumb-modern .breadcrumb-item a {
        padding: 0.25rem 0.5rem;
        font-size: 0.8125rem;
    }

    .badge-modern {
        padding: 0.375rem 0.625rem;
        font-size: 0.75rem;
    }
}

/* ===========================
   Print Styles
   =========================== */
@media print {
    .navbar,
    .search-filter-section,
    .pagination-container,
    footer {
        display: none;
    }

    .project-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}