/*
 * IRIU DataHub Custom Theme
 * Inspired by Paris Open Data Portal
 * Brand colors: Navy (#1e2a4a) and Teal (#5bbfb3)
 */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */
:root {
    /* IRIU Brand Colors */
    --iriu-navy: #1e2a4a;
    --iriu-navy-dark: #151d35;
    --iriu-navy-light: #2d3d5c;

    --iriu-teal: #5bbfb3;
    --iriu-teal-dark: #4aa99e;
    --iriu-teal-light: #7dd4ca;

    /* Extended Palette */
    --iriu-orange: #e67e22;
    --iriu-orange-light: #f39c12;
    --iriu-green: #27ae60;
    --iriu-green-light: #2ecc71;

    /* Neutral Colors */
    --iriu-white: #ffffff;
    --iriu-gray-50: #f8fafc;
    --iriu-gray-100: #f1f5f9;
    --iriu-gray-200: #e2e8f0;
    --iriu-gray-300: #cbd5e1;
    --iriu-gray-400: #94a3b8;
    --iriu-gray-500: #64748b;
    --iriu-gray-600: #475569;
    --iriu-gray-700: #334155;
    --iriu-gray-800: #1e293b;
    --iriu-gray-900: #0f172a;

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

    /* Shadows - Paris-style subtle */
    --iriu-shadow-xs: 0 1px 2px rgba(30, 42, 74, 0.05);
    --iriu-shadow-sm: 0 1px 3px rgba(30, 42, 74, 0.1), 0 1px 2px rgba(30, 42, 74, 0.06);
    --iriu-shadow-md: 0 4px 6px rgba(30, 42, 74, 0.1), 0 2px 4px rgba(30, 42, 74, 0.06);
    --iriu-shadow-lg: 0 10px 15px rgba(30, 42, 74, 0.1), 0 4px 6px rgba(30, 42, 74, 0.05);
    --iriu-shadow-xl: 0 20px 25px rgba(30, 42, 74, 0.1), 0 10px 10px rgba(30, 42, 74, 0.04);

    /* Border Radius - Modern rounded */
    --iriu-radius-sm: 6px;
    --iriu-radius-md: 10px;
    --iriu-radius-lg: 16px;
    --iriu-radius-xl: 24px;

    /* Transitions */
    --iriu-transition-fast: all 0.15s ease;
    --iriu-transition: all 0.25s ease;
    --iriu-transition-slow: all 0.4s ease;
}

/* ============================================
   Global Styles
   ============================================ */
body {
    background-color: var(--iriu-gray-50);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--iriu-gray-800);
    line-height: 1.6;
}

a {
    color: var(--iriu-navy);
    transition: var(--iriu-transition-fast);
}

a:hover {
    color: var(--iriu-teal);
    text-decoration: none;
}

/* ============================================
   Account Masthead (Top Bar)
   ============================================ */
.account-masthead {
    background-color: var(--iriu-navy-dark);
    border-bottom: none;
    padding: 8px 0;
}

.account-masthead .account ul li a {
    color: var(--iriu-gray-300);
    font-size: 13px;
    font-weight: 500;
}

.account-masthead .account ul li a:hover {
    color: var(--iriu-white);
}

/* ============================================
   Language Switcher
   ============================================ */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-left: 15px;
    padding-left: 15px;
    border-left: 1px solid var(--iriu-gray-600);
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 24px;
    font-size: 11px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 4px;
    transition: var(--iriu-transition-fast);
    letter-spacing: 0.5px;
}

.lang-btn:not(.lang-active) {
    background-color: transparent;
    color: var(--iriu-gray-400);
    border: 1px solid var(--iriu-gray-600);
}

.lang-btn:not(.lang-active):hover {
    background-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
    border-color: var(--iriu-teal);
    text-decoration: none;
}

.lang-btn.lang-active {
    background-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
    border: 1px solid var(--iriu-teal);
    cursor: default;
}

/* Account masthead layout fix for language switcher */
.account-masthead .container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.account-masthead .account,
.account-masthead .account.not-authed {
    margin-right: 0;
}

/* ============================================
   Main Masthead / Navigation
   ============================================ */
.masthead {
    background: var(--iriu-white);
    border-bottom: 1px solid var(--iriu-gray-200);
    box-shadow: var(--iriu-shadow-sm);
    padding: 12px 0;
}

.masthead .logo img {
    max-height: 50px;
    width: auto;
}

.masthead .navigation .nav-pills > li > a {
    color: var(--iriu-navy);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 16px;
    border-radius: var(--iriu-radius-md);
    transition: var(--iriu-transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.masthead .navigation .nav-pills > li > a:hover,
.masthead .navigation .nav-pills > li > a:focus {
    background-color: var(--iriu-gray-100);
    color: var(--iriu-teal-dark);
}

.masthead .navigation .nav-pills > li.active > a {
    background-color: var(--iriu-navy);
    color: var(--iriu-white);
}

/* ============================================
   Hero Section / Homepage - Paris Style
   ============================================ */
.homepage .module-search {
    background: linear-gradient(135deg, var(--iriu-navy) 0%, var(--iriu-navy-light) 50%, var(--iriu-teal-dark) 100%);
    padding: 80px 0;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.homepage .module-search::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='0.03'%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");
    opacity: 1;
}

.homepage .module-search .search-giant {
    position: relative;
    z-index: 1;
}

.homepage .module-search h1,
.homepage .module-search .heading {
    color: var(--iriu-white);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.homepage .module-search p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.homepage .module-search .search-giant input {
    border-radius: var(--iriu-radius-xl);
    border: none;
    padding: 18px 28px;
    font-size: 16px;
    box-shadow: var(--iriu-shadow-xl);
    width: 100%;
    max-width: 700px;
}

.homepage .module-search .search-giant input:focus {
    outline: none;
    box-shadow: var(--iriu-shadow-xl), 0 0 0 4px rgba(91, 191, 179, 0.3);
}

.homepage .module-search .search-giant .btn {
    border-radius: var(--iriu-radius-xl);
    padding: 18px 32px;
    background-color: var(--iriu-teal);
    border: none;
    color: var(--iriu-navy-dark);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.homepage .module-search .search-giant .btn:hover {
    background-color: var(--iriu-teal-light);
    transform: translateY(-2px);
    box-shadow: var(--iriu-shadow-lg);
}

/* ============================================
   Stats Section - Paris Style Cards
   ============================================ */
.stats-section {
    background: var(--iriu-white);
    padding: 60px 0;
    margin-top: -30px;
    position: relative;
    z-index: 2;
}

.stat-card {
    background: var(--iriu-white);
    border-radius: var(--iriu-radius-lg);
    padding: 30px;
    text-align: center;
    box-shadow: var(--iriu-shadow-md);
    border: 1px solid var(--iriu-gray-100);
    transition: var(--iriu-transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--iriu-shadow-xl);
    border-color: var(--iriu-teal);
}

.stat-card .stat-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--iriu-navy);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-card .stat-label {
    font-size: 14px;
    color: var(--iriu-gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ============================================
   Buttons - Paris Style
   ============================================ */
.btn {
    border-radius: var(--iriu-radius-md);
    font-weight: 600;
    padding: 10px 20px;
    transition: var(--iriu-transition-fast);
    text-transform: none;
    letter-spacing: 0;
}

.btn-primary {
    background-color: var(--iriu-navy);
    border-color: var(--iriu-navy);
    color: var(--iriu-white);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--iriu-navy-dark);
    border-color: var(--iriu-navy-dark);
    transform: translateY(-1px);
    box-shadow: var(--iriu-shadow-md);
}

.btn-success {
    background-color: var(--iriu-teal);
    border-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
}

.btn-success:hover,
.btn-success:focus {
    background-color: var(--iriu-teal-dark);
    border-color: var(--iriu-teal-dark);
}

.btn-default {
    background-color: var(--iriu-white);
    border-color: var(--iriu-gray-300);
    color: var(--iriu-gray-700);
}

.btn-default:hover {
    background-color: var(--iriu-gray-50);
    border-color: var(--iriu-navy);
    color: var(--iriu-navy);
}

/* Search Button */
.search-form .btn-search {
    background-color: var(--iriu-teal);
    border-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
    font-weight: 700;
}

.search-form .btn-search:hover {
    background-color: var(--iriu-teal-dark);
}

/* ============================================
   Cards / Modules - Paris Style
   ============================================ */
.module {
    background-color: var(--iriu-white);
    border-radius: var(--iriu-radius-lg);
    box-shadow: var(--iriu-shadow-sm);
    border: 1px solid var(--iriu-gray-200);
    overflow: hidden;
}

.module-content {
    background-color: var(--iriu-white);
    padding: 20px;
}

.module-heading {
    background: var(--iriu-navy);
    color: var(--iriu-white);
    padding: 16px 20px;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 0;
    margin: 0;
}

.module-heading i {
    margin-right: 8px;
    opacity: 0.8;
}

.module-heading .action {
    color: var(--iriu-teal-light);
}

.module-heading .action:hover {
    color: var(--iriu-white);
}

/* ============================================
   Dataset List / Items - Paris Card Style
   ============================================ */
.dataset-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dataset-item {
    background-color: var(--iriu-white);
    border: 1px solid var(--iriu-gray-200);
    border-radius: var(--iriu-radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    transition: var(--iriu-transition);
    position: relative;
}

.dataset-item:hover {
    box-shadow: var(--iriu-shadow-lg);
    border-color: var(--iriu-teal);
    transform: translateY(-2px);
}

.dataset-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--iriu-teal);
    border-radius: var(--iriu-radius-lg) 0 0 var(--iriu-radius-lg);
    opacity: 0;
    transition: var(--iriu-transition-fast);
}

.dataset-item:hover::before {
    opacity: 1;
}

.dataset-item .dataset-heading {
    margin-bottom: 8px;
}

.dataset-item .dataset-heading a {
    color: var(--iriu-navy);
    font-weight: 700;
    font-size: 1.15rem;
    line-height: 1.4;
}

.dataset-item .dataset-heading a:hover {
    color: var(--iriu-teal-dark);
}

.dataset-item .notes {
    color: var(--iriu-gray-600);
    font-size: 14px;
    line-height: 1.6;
    margin-top: 8px;
}

/* Dataset Resources */
.dataset-resources {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.dataset-resources li {
    list-style: none;
}

.dataset-resources li a {
    display: inline-flex;
    align-items: center;
    background-color: var(--iriu-gray-100);
    border: 1px solid var(--iriu-gray-200);
    border-radius: var(--iriu-radius-sm);
    padding: 6px 12px;
    color: var(--iriu-gray-700);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--iriu-transition-fast);
}

.dataset-resources li a:hover {
    background-color: var(--iriu-teal);
    border-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
}

/* ============================================
   Tags - Paris Style Pills
   ============================================ */
.tag-list .tag,
.tag,
a.tag {
    background-color: var(--iriu-navy);
    color: var(--iriu-white);
    border-radius: var(--iriu-radius-xl);
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    transition: var(--iriu-transition-fast);
    display: inline-block;
    margin: 3px;
    text-decoration: none;
}

.tag-list .tag:hover,
.tag:hover,
a.tag:hover {
    background-color: var(--iriu-teal);
    color: var(--iriu-navy-dark);
    transform: translateY(-1px);
}

.tag .count {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--iriu-radius-xl);
    padding: 2px 8px;
    margin-left: 6px;
    font-size: 11px;
}

/* ============================================
   Sidebar - Clean Paris Style
   ============================================ */
.secondary {
    background-color: transparent;
}

.secondary .module {
    margin-bottom: 20px;
    border-radius: var(--iriu-radius-lg);
}

.secondary .module-heading {
    font-size: 13px;
    padding: 14px 18px;
}

.secondary .nav-simple {
    padding: 0;
}

.secondary .nav-simple > li > a {
    color: var(--iriu-gray-700);
    padding: 12px 18px;
    border-left: 3px solid transparent;
    transition: var(--iriu-transition-fast);
    font-size: 14px;
}

.secondary .nav-simple > li > a:hover {
    background-color: var(--iriu-gray-50);
    border-left-color: var(--iriu-teal);
    color: var(--iriu-navy);
}

.secondary .nav-simple > li.active > a {
    background-color: var(--iriu-gray-100);
    border-left-color: var(--iriu-navy);
    color: var(--iriu-navy);
    font-weight: 600;
}

/* ============================================
   Footer - Paris Style
   ============================================ */
.site-footer {
    background: var(--iriu-navy);
    color: var(--iriu-gray-300);
    padding: 60px 0 30px;
    margin-top: 60px;
}

.site-footer h4 {
    color: var(--iriu-white);
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.site-footer a {
    color: var(--iriu-gray-300);
    transition: var(--iriu-transition-fast);
}

.site-footer a:hover {
    color: var(--iriu-teal-light);
}

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

.site-footer .footer-links li {
    margin-bottom: 10px;
}

.site-footer .footer-links li a {
    font-size: 14px;
}

.site-footer .footer-bottom {
    border-top: 1px solid var(--iriu-navy-light);
    margin-top: 40px;
    padding-top: 20px;
    font-size: 13px;
    color: var(--iriu-gray-400);
}

/* ============================================
   Forms - Modern Style
   ============================================ */
.form-control {
    border-radius: var(--iriu-radius-md);
    border: 2px solid var(--iriu-gray-200);
    padding: 12px 16px;
    font-size: 14px;
    transition: var(--iriu-transition-fast);
}

.form-control:focus {
    border-color: var(--iriu-teal);
    box-shadow: 0 0 0 3px rgba(91, 191, 179, 0.15);
    outline: none;
}

/* ============================================
   Breadcrumbs
   ============================================ */
.breadcrumb {
    background-color: transparent;
    padding: 16px 0;
    margin-bottom: 20px;
    font-size: 13px;
}

.breadcrumb > li > a {
    color: var(--iriu-gray-500);
}

.breadcrumb > li > a:hover {
    color: var(--iriu-navy);
}

.breadcrumb > li.active {
    color: var(--iriu-navy);
    font-weight: 600;
}

.breadcrumb > li + li::before {
    color: var(--iriu-gray-400);
}

/* ============================================
   Pagination - Paris Style
   ============================================ */
.pagination > li > a,
.pagination > li > span {
    color: var(--iriu-navy);
    border: 1px solid var(--iriu-gray-200);
    padding: 10px 16px;
    margin: 0 2px;
    border-radius: var(--iriu-radius-md);
    transition: var(--iriu-transition-fast);
}

.pagination > li > a:hover {
    background-color: var(--iriu-gray-100);
    border-color: var(--iriu-navy);
    color: var(--iriu-navy);
}

.pagination > .active > a,
.pagination > .active > a:hover,
.pagination > .active > span {
    background-color: var(--iriu-navy);
    border-color: var(--iriu-navy);
    color: var(--iriu-white);
}

/* ============================================
   Alerts - Modern Style
   ============================================ */
.alert {
    border-radius: var(--iriu-radius-md);
    border: none;
    padding: 16px 20px;
}

.alert-info {
    background-color: rgba(91, 191, 179, 0.1);
    color: var(--iriu-navy);
    border-left: 4px solid var(--iriu-teal);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #065f46;
    border-left: 4px solid var(--iriu-success);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #92400e;
    border-left: 4px solid var(--iriu-warning);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #991b1b;
    border-left: 4px solid var(--iriu-danger);
}

/* ============================================
   Organization / Group Cards - Paris Grid
   ============================================ */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.media-grid .media-item {
    background-color: var(--iriu-white);
    border: 1px solid var(--iriu-gray-200);
    border-radius: var(--iriu-radius-lg);
    padding: 24px;
    transition: var(--iriu-transition);
}

.media-grid .media-item:hover {
    box-shadow: var(--iriu-shadow-lg);
    border-color: var(--iriu-teal);
    transform: translateY(-3px);
}

.media-grid .media-item .media-heading a {
    color: var(--iriu-navy);
    font-weight: 700;
    font-size: 1.1rem;
}

.media-grid .media-item .media-heading a:hover {
    color: var(--iriu-teal-dark);
}

/* ============================================
   Resource View
   ============================================ */
.resource-view .module-heading {
    background: var(--iriu-navy);
}

.resource-actions .btn-group .btn {
    border-color: var(--iriu-gray-300);
}

/* ============================================
   Activity Stream
   ============================================ */
.activity-stream .item {
    border-left: 3px solid var(--iriu-teal);
    padding-left: 20px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--iriu-gray-100);
}

.activity-stream .item:last-child {
    border-bottom: none;
}

.activity-stream .item .actor a {
    color: var(--iriu-navy);
    font-weight: 700;
}

/* ============================================
   Homepage Featured Section
   ============================================ */
.featured-section {
    padding: 60px 0;
    background: var(--iriu-gray-50);
}

.featured-section h2 {
    color: var(--iriu-navy);
    font-weight: 800;
    margin-bottom: 10px;
}

.featured-section .section-subtitle {
    color: var(--iriu-gray-500);
    margin-bottom: 40px;
}

/* ============================================
   About Page Styles
   ============================================ */
.about-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--iriu-gray-200);
}

.about-section:last-child {
    border-bottom: none;
}

.about-section h2 {
    color: var(--iriu-navy);
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-section h2 i {
    color: var(--iriu-teal);
}

.about-section p {
    color: var(--iriu-gray-700);
    line-height: 1.8;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--iriu-gray-100);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li strong {
    color: var(--iriu-navy);
    display: block;
    margin-bottom: 4px;
}

.contact-list {
    list-style: none;
    padding: 0;
}

.contact-list li {
    padding: 8px 0;
}

.contact-list li i {
    color: var(--iriu-teal);
    margin-right: 10px;
    width: 20px;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.service-card {
    background: var(--iriu-white);
    border: 1px solid var(--iriu-gray-200);
    border-radius: var(--iriu-radius-lg);
    padding: 24px;
    transition: var(--iriu-transition);
}

.service-card:hover {
    box-shadow: var(--iriu-shadow-md);
    border-color: var(--iriu-teal);
}

.service-card h4 {
    color: var(--iriu-navy);
    font-weight: 700;
    margin-bottom: 8px;
}

.service-card p {
    color: var(--iriu-gray-600);
    font-size: 14px;
    margin: 0;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 992px) {
    .homepage .module-search {
        padding: 60px 20px;
    }

    .homepage .module-search h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .homepage .module-search {
        padding: 50px 15px;
    }

    .homepage .module-search h1 {
        font-size: 1.75rem;
    }

    .homepage .module-search .search-giant input {
        padding: 14px 20px;
        font-size: 14px;
    }

    .masthead .navigation {
        padding: 10px 0;
    }

    .stat-card .stat-value {
        font-size: 2.5rem;
    }

    .site-footer {
        padding: 40px 0 20px;
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.dataset-item,
.media-item {
    animation: fadeInUp 0.4s ease-out;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .masthead,
    .account-masthead,
    .site-footer,
    .toolbar {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .module {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    a {
        color: black;
    }
}