/* 
Hainan Marine Natural Products Database - Custom Styles
Color Palette:
- E6E1DE (淡米色)
- F0EFE9 (象牙白) 
- F2F1ED (温白色)
- 9CBFC8 (浅蓝绿)
- 8AB8CC (中等蓝色)
- 81B7CF (天蓝色)
- 6898A8 (钢蓝色)
- 283848 (深蓝灰)
*/

:root {
    --color-lightest: #F2F1ED;
    --color-ivory: #F0EFE9;
    --color-warm-white: #E6E1DE;
    --color-light-blue: #9CBFC8;
    --color-medium-blue: #8AB8CC;
    --color-sky-blue: #81B7CF;
    --color-steel-blue: #6898A8;
    --color-dark-blue: #283848;
    
    --primary-color: var(--color-steel-blue);
    --secondary-color: var(--color-light-blue);
    --accent-color: var(--color-sky-blue);
    --background-color: var(--color-lightest);
    --text-color: var(--color-dark-blue);
    --light-text: #666;
    --border-color: var(--color-medium-blue);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-dark-blue);
    font-weight: 600;
}

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

.text-light-gray {
    color: #ccc !important;
}

.text-accent {
    color: var(--accent-color) !important;
}

/* Background Classes */
.bg-primary-light {
    background-color: var(--color-ivory) !important;
    border-bottom: 1px solid var(--border-color);
}

.bg-secondary-light {
    background-color: var(--color-warm-white) !important;
}

.bg-dark-blue {
    background-color: var(--color-dark-blue) !important;
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    color: var(--color-dark-blue) !important;
    transition: color 0.3s ease;
}

.navbar-brand:hover {
    color: var(--primary-color) !important;
}

.nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    background-color: rgba(156, 191, 200, 0.1);
    border-radius: 5px;
}

.nav-link.active {
    color: var(--primary-color) !important;
    background-color: rgba(156, 191, 200, 0.2);
    border-radius: 5px;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s ease;
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: var(--color-medium-blue);
    border-color: var(--color-medium-blue);
    color: white;
}

/* Cards and Containers */
.card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(40, 56, 72, 0.08);
    transition: all 0.3s ease;
    background-color: white;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 25px rgba(40, 56, 72, 0.15);
}

.card-header {
    background-color: var(--color-ivory);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--color-ivory) 0%, var(--color-warm-white) 100%);
    padding: 4rem 0;
    border-radius: 0 0 30px 30px;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-dark-blue);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--light-text);
    margin-bottom: 2rem;
}

/* Statistics Cards */
.stat-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(40, 56, 72, 0.12);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--light-text);
    margin-top: 0.5rem;
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* Search Box */
.search-container {
    max-width: 600px;
    margin: 0 auto 3rem;
}

.search-input {
    border: 2px solid var(--border-color);
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(104, 152, 168, 0.25);
}

/* Tables */
.table {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(40, 56, 72, 0.08);
}

.table th {
    background-color: var(--color-ivory);
    color: var(--text-color);
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
}

.table td {
    border-bottom: 1px solid rgba(156, 191, 200, 0.3);
    vertical-align: middle;
}

.table tbody tr:hover {
    background-color: rgba(156, 191, 200, 0.05);
}

/* Badges */
.badge {
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.badge-primary {
    background-color: var(--primary-color);
}

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

/* Forms */
.form-control {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(104, 152, 168, 0.25);
}

/* Pagination */
.pagination .page-link {
    color: var(--primary-color);
    border-color: var(--border-color);
    transition: all 0.3s ease;
}

.pagination .page-link:hover {
    background-color: var(--color-ivory);
    border-color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Alerts */
.alert-info {
    background-color: rgba(156, 191, 200, 0.1);
    border-color: var(--secondary-color);
    color: var(--text-color);
}

/* Loading Spinner */
.loading-spinner {
    border: 3px solid var(--color-ivory);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-ivory);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s 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 { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================
   Mobile-only responsive optimization for SCSMarineNP
   Scope: phones only. Desktop/tablet layout is unchanged.
   ========================================================== */
@media (max-width: 576px) {
    html,
    body {
        max-width: 100% !important;
        overflow-x: hidden !important;
        font-size: 15px !important;
    }

    .container {
        padding-left: 0.85rem !important;
        padding-right: 0.85rem !important;
    }

    /* ---------- Navigation ---------- */
    .navbar {
        padding: 0.5rem 0 !important;
    }

    .navbar .container {
        padding-left: 0.85rem !important;
        padding-right: 0.85rem !important;
    }

    .navbar-brand img {
        width: 34px !important;
        height: 34px !important;
        margin-right: 8px !important;
    }

    .navbar-brand .fw-bold,
    .navbar-brand span {
        font-size: 1.45rem !important;
        line-height: 1.1 !important;
        letter-spacing: 0.02em !important;
    }

    .navbar-toggler {
        padding: 0.42rem 0.62rem !important;
        border-radius: 8px !important;
    }

    .navbar-collapse {
        margin-top: 0.75rem !important;
        padding-top: 0.75rem !important;
        border-top: 1px solid var(--border-color) !important;
    }

    .navbar-nav .nav-link {
        padding: 0.72rem 0.4rem !important;
        font-size: 1rem !important;
        border-radius: 8px !important;
    }

    .navbar form.d-flex {
        width: 100% !important;
        margin: 0.6rem 0 0 0 !important;
    }

    .navbar form .input-group,
    .navbar form input {
        width: 100% !important;
    }

    .navbar form input {
        height: 42px !important;
        font-size: 0.95rem !important;
    }

    .navbar form button {
        min-width: 48px !important;
    }

    /* ---------- General cards / typography ---------- */
    h1.display-5,
    h1.display-6 {
        font-size: 1.8rem !important;
        line-height: 1.22 !important;
    }

    .lead {
        font-size: 1rem !important;
        line-height: 1.65 !important;
    }

    .card:hover,
    .stat-card:hover {
        transform: none !important;
    }

    .site-footer {
        padding: 1.6rem 0 1rem !important;
    }

    .footer-logo-wrap {
        gap: 1.2rem !important;
    }

    .footer-logo-item img,
    .footer-logo-item > div {
        height: 46px !important;
        width: 46px !important;
    }

    .footer-logo-item .logo-label {
        font-size: 0.7rem !important;
        max-width: 105px !important;
    }

    /* ---------- Home page ---------- */
    .hero-section {
        padding: 2rem 0 !important;
        margin-bottom: 1rem !important;
        border-radius: 0 0 18px 18px !important;
    }

    .hero-title {
        font-size: 2.15rem !important;
        line-height: 1.12 !important;
        letter-spacing: 0.02em !important;
        margin-bottom: 0.8rem !important;
    }

    .hero-subtitle {
        font-size: 1rem !important;
        line-height: 1.72 !important;
        letter-spacing: 0.01em !important;
        margin-bottom: 1.25rem !important;
    }

    .hero-section .btn-lg {
        width: 100% !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        margin: 0 0 0.65rem 0 !important;
        padding: 0.78rem 1rem !important;
        font-size: 1rem !important;
        border-radius: 10px !important;
    }

    .map-w {
        max-width: 100% !important;
        margin: 1.2rem 0 0 0 !important;
        border-radius: 14px !important;
    }

    #scs-3d-map {
        height: 210px !important;
        transform: scale(1.05) !important;
    }

    .map-hint,
    .map-loading span,
    .marker-label {
        display: none !important;
    }

    .stat-card {
        padding: 1.1rem 0.7rem !important;
        border-radius: 12px !important;
        margin-bottom: 0.75rem !important;
    }

    .stat-number {
        font-size: 1.75rem !important;
    }

    .stat-label {
        font-size: 0.85rem !important;
    }

    .stat-icon {
        font-size: 1.65rem !important;
        margin-bottom: 0.55rem !important;
    }

    .section-title {
        font-size: 1.35rem !important;
        line-height: 1.3 !important;
    }

    .section-subtitle {
        font-size: 0.92rem !important;
        line-height: 1.55 !important;
    }

    .marine-source-img-wrap {
        height: 170px !important;
    }

    .marine-source-body {
        padding: 0.9rem 0.95rem 1rem !important;
    }

    .marine-source-title {
        font-size: 1rem !important;
    }

    .marine-source-text {
        font-size: 0.86rem !important;
    }

    .focus-list li {
        font-size: 0.92rem !important;
    }

    /* ---------- Compounds search/list page ---------- */
    .bg-secondary-light {
        padding-top: 1rem !important;
        padding-bottom: 1rem !important;
    }

    .search-panel {
        padding: 1rem !important;
        border-radius: 12px !important;
    }

    .search-panel .row.g-3 {
        --bs-gutter-y: 0.75rem !important;
    }

    .search-panel .form-label {
        font-size: 0.76rem !important;
        letter-spacing: 0.06em !important;
    }

    .search-panel .form-control,
    .search-panel .form-select {
        height: 44px !important;
        font-size: 0.95rem !important;
        padding: 0.55rem 0.75rem !important;
    }

    .search-panel .btn {
        width: 100% !important;
        height: 44px !important;
        margin-top: 0.15rem !important;
    }

    .chemical-search-panel {
        margin-top: 0.85rem !important;
        border-radius: 12px !important;
    }

    .chemical-search-trigger {
        padding: 0.85rem 1rem !important;
    }

    .chemical-search-content.active {
        padding: 0.75rem !important;
    }

    .ketcher-panel {
        padding: 0.75rem !important;
    }

    .ketcher-iframe-wrapper {
        height: 300px !important;
    }

    .ketcher-controls {
        grid-template-columns: 1fr !important;
    }

    .structure-search-row {
        gap: 0.55rem !important;
    }

    .structure-search-btn,
    .structure-clear-link {
        width: 100% !important;
        min-width: 0 !important;
    }

    section.container.my-5 {
        margin-top: 1.2rem !important;
        margin-bottom: 1.5rem !important;
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
    }

    .alert {
        font-size: 0.9rem !important;
        padding: 0.75rem 0.9rem !important;
        border-radius: 10px !important;
    }

    .results-toolbar {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        padding: 0.85rem !important;
        text-align: center !important;
    }

    .results-toolbar .toolbar-label {
        white-space: normal !important;
        line-height: 1.45 !important;
    }

    .results-toolbar .ms-auto {
        margin-left: 0 !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }

    .results-toolbar .btn,
    .results-toolbar .form-select {
        font-size: 0.85rem !important;
    }

    .compound-row {
        display: grid !important;
        grid-template-columns: 92px minmax(0, 1fr) !important;
        grid-template-rows: auto auto !important;
        column-gap: 0.85rem !important;
        align-items: start !important;
        padding: 1rem 0.85rem !important;
        min-width: 0 !important;
    }

    .smc-id-label {
        grid-column: 1 / -1 !important;
        grid-row: 1 !important;
        width: auto !important;
        text-align: left !important;
        padding: 0 !important;
        margin-bottom: 0.65rem !important;
        font-size: 0.78rem !important;
        color: var(--color-dark-blue) !important;
        letter-spacing: 0.04em !important;
        word-break: normal !important;
    }

    .structure-thumb,
    .structure-thumb-placeholder {
        grid-column: 1 !important;
        grid-row: 2 !important;
        width: 86px !important;
        height: 86px !important;
        border-radius: 8px !important;
    }

    .compound-info {
        grid-column: 2 !important;
        grid-row: 2 !important;
        padding: 0 !important;
        min-width: 0 !important;
    }

    .compound-info .cname {
        font-size: 1rem !important;
        line-height: 1.35 !important;
        white-space: normal !important;
        overflow: hidden !important;
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important;
        line-clamp: 2 !important;
        -webkit-box-orient: vertical !important;
        margin-bottom: 0.45rem !important;
    }

    .compound-info .cmeta {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.28rem !important;
        font-size: 0.86rem !important;
        line-height: 1.35 !important;
    }

    .compound-info .cmeta span {
        border-right: none !important;
        padding: 0 !important;
        margin: 0 !important;
        max-width: 100% !important;
        white-space: normal !important;
        overflow-wrap: anywhere !important;
    }

    .compound-info .cmeta code {
        font-size: 0.82rem !important;
        white-space: normal !important;
        overflow-wrap: anywhere !important;
    }

    .row-actions {
        display: none !important;
    }

    .pagination {
        flex-wrap: wrap !important;
        gap: 0.25rem !important;
    }

    .pagination .page-link {
        font-size: 0.85rem !important;
        padding: 0.35rem 0.55rem !important;
    }

    /* ---------- Compound detail page ---------- */
    .breadcrumb-bar {
        font-size: 0.78rem !important;
        padding: 0.45rem 0 !important;
    }

    .compound-header {
        padding: 1.6rem 0 !important;
    }

    .compound-title {
        font-size: 1.65rem !important;
        line-height: 1.25 !important;
    }

    .compound-id {
        font-size: 0.9rem !important;
    }

    .compound-header .btn {
        width: 100% !important;
        margin-top: 0.4rem !important;
    }

    .info-card {
        padding: 1rem !important;
        margin-bottom: 1rem !important;
        border-radius: 12px !important;
    }

    .info-card-title {
        font-size: 1.05rem !important;
        margin-bottom: 0.9rem !important;
        padding-bottom: 0.55rem !important;
    }

    .property-row {
        display: block !important;
        padding: 0.72rem 0 !important;
    }

    .property-label {
        min-width: 0 !important;
        width: 100% !important;
        margin-bottom: 0.3rem !important;
        font-size: 0.8rem !important;
        text-transform: uppercase !important;
        letter-spacing: 0.04em !important;
    }

    .property-value {
        width: 100% !important;
        font-size: 0.92rem !important;
        overflow-wrap: anywhere !important;
    }

    .property-value[style*="display:flex"],
    .property-value[style*="display: flex"] {
        display: block !important;
    }

    .copy-btn {
        margin-left: 0 !important;
        margin-top: 0.45rem !important;
    }

    #view-2d {
        min-height: 240px !important;
        padding: 0.75rem !important;
    }

    #view-2d img {
        max-height: 235px !important;
    }

    #view-3d {
        height: 265px !important;
    }

    .structure-tab {
        padding: 0.55rem 0.5rem !important;
        font-size: 0.82rem !important;
    }

    .structure-note {
        font-size: 0.75rem !important;
        padding: 0.6rem 0.75rem !important;
    }

    .download-panel {
        padding: 0.75rem !important;
    }

    .dl-btn,
    .external-link-buttons .btn {
        width: 100% !important;
        justify-content: center !important;
    }

    .druglike-grid {
        grid-template-columns: 1fr !important;
    }

    .source-card {
        padding: 0.85rem !important;
    }

    .source-card .d-flex.align-items-start {
        align-items: flex-start !important;
    }

    .source-taxonomy {
        gap: 0.3rem !important;
    }

    .taxon-chip {
        max-width: 100% !important;
        white-space: normal !important;
    }

    .bioactivity-table,
    .table {
        font-size: 0.82rem !important;
    }

    .table-responsive {
        border-radius: 10px !important;
    }

    /* ---------- Organisms page ---------- */
    .bg-gradient-header {
        padding-top: 1.4rem !important;
        padding-bottom: 1.4rem !important;
    }

    .org-id-badge {
        font-size: 0.78rem !important;
    }

    #orgTable {
        border-collapse: separate !important;
        border-spacing: 0 0.75rem !important;
        background: var(--background-color) !important;
        box-shadow: none !important;
    }

    #orgTable thead {
        display: none !important;
    }

    #orgTable tbody,
    #orgTable tr,
    #orgTable td {
        display: block !important;
        width: 100% !important;
    }

    #orgTable tr {
        background: white !important;
        border: 1px solid var(--border-color) !important;
        border-radius: 12px !important;
        overflow: hidden !important;
        box-shadow: 0 2px 8px rgba(40,56,72,0.06) !important;
    }

    #orgTable td {
        padding: 0.58rem 0.85rem !important;
        border-bottom: 1px solid rgba(156,191,200,0.25) !important;
        font-size: 0.88rem !important;
    }

    #orgTable td:last-child {
        border-bottom: none !important;
    }

    #orgTable td::before {
        display: block !important;
        font-size: 0.72rem !important;
        font-weight: 700 !important;
        color: var(--light-text) !important;
        letter-spacing: 0.05em !important;
        text-transform: uppercase !important;
        margin-bottom: 0.2rem !important;
    }

    #orgTable td:nth-child(1)::before { content: 'ID'; }
    #orgTable td:nth-child(2)::before { content: 'Scientific name'; }
    #orgTable td:nth-child(4)::before { content: 'Taxonomy'; }
    #orgTable td:nth-child(5)::before { content: 'Location'; }
    #orgTable td:nth-child(6)::before { content: 'Habitat'; }
    #orgTable td:nth-child(7)::before { content: 'Tags'; }
    #orgTable td:nth-child(8)::before { content: 'Compounds'; }

    #orgTable td.d-none {
        display: none !important;
    }

    .taxonomy-btn {
        font-size: 1rem !important;
    }

    .organism-badge {
        white-space: normal !important;
        line-height: 1.25 !important;
    }

    .card-footer {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .card-footer nav,
    .card-footer .pagination {
        justify-content: center !important;
    }

    /* ---------- Visualization page ---------- */
    .vis-body {
        padding: 1.5rem 0 2.2rem !important;
    }

    .vis-section-title {
        font-size: 0.68rem !important;
        margin-bottom: 0.65rem !important;
    }

    .nav-pill-grid {
        grid-template-columns: 1fr !important;
        gap: 0.6rem !important;
    }

    .nav-pill {
        flex-direction: row !important;
        justify-content: flex-start !important;
        align-items: center !important;
        padding: 0.85rem 1rem !important;
        text-align: left !important;
    }

    .nav-pill-icon {
        width: 38px !important;
        height: 38px !important;
        font-size: 1rem !important;
        flex-shrink: 0 !important;
    }

    .nav-pill span,
    .nav-pill small {
        text-align: left !important;
    }

    .visualization-page .card,
    .vis-body .card {
        min-height: auto !important;
    }

    .chart-wrap {
        height: 235px !important;
    }

    .vis-body .card-body {
        padding: 0.85rem !important;
    }

    .ro5-badge {
        padding: 0.7rem 0.85rem !important;
    }

    .ro5-pct {
        font-size: 1.25rem !important;
    }

    .taxon-label,
    .kingdom-label {
        width: 88px !important;
        font-size: 0.78rem !important;
    }

    .kingdom-count-col,
    .taxon-count {
        width: 44px !important;
    }

    /* ---------- Target screening page ---------- */
    .screening-panel,
    .screening-section {
        padding: 0.95rem !important;
        border-radius: 12px !important;
    }

    .section-header {
        flex-direction: column !important;
        gap: 0.6rem !important;
    }

    .submit-screening-btn,
    .reset-screening-btn {
        width: 100% !important;
        min-width: 0 !important;
    }
}