/* Bird Distribution Platform - Modern Clean UI */

:root {
    --bg: #0f1419;
    --surface: #1a1f26;
    --surface-hover: #252b33;
    --border: #30363d;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --success: #22c55e;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --transition: 0.2s ease;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body.light-mode {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow: hidden;
}

/* App layout - sidebar + full-screen map */
.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar filters */
.sidebar {
    width: 280px;
    min-width: 280px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), margin var(--transition), box-shadow var(--transition);
    z-index: 100;
}

.sidebar-header {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color var(--transition);
}

.sidebar-close:hover {
    color: var(--text);
}

.sidebar-filters {
    flex: 1;
    padding: 1rem 1.25rem;
    overflow-y: auto;
}

.sidebar-title {
    margin: 0 0 0.5rem 0;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.filter-group {
    margin-bottom: 1rem;
}

.filter-group select,
.filter-group input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    transition: border-color var(--transition);
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.sidebar-features {
    padding: 0 1.25rem 1rem;
    border-top: 1px solid var(--border);
    overflow-y: auto;
    max-height: 40vh;
}

.sidebar-accordion {
    margin-top: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.sidebar-accordion-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    background: var(--surface-hover);
    border: none;
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: background var(--transition);
}

.sidebar-accordion-toggle:hover {
    background: var(--border);
}

.sidebar-accordion-toggle .acc-icon {
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.sidebar-accordion.collapsed .acc-icon {
    transform: rotate(-90deg);
}

.sidebar-accordion-body {
    padding: 0.75rem 1rem;
    background: var(--bg);
    font-size: 0.85rem;
}

.sidebar-accordion-body.collapsed {
    display: none;
}

.sidebar-accordion-body .charts-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.sidebar-accordion-body .charts-row canvas {
    max-width: 110px;
    max-height: 100px;
}

.sidebar-accordion-body select:first-of-type {
    margin-top: 0;
}
.sidebar-accordion-body select {
    width: 100%;
    padding: 0.4rem 0.5rem;
    margin-top: 0.35rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.85rem;
}

.sidebar-accordion-body input[type="range"] {
    flex: 1;
}

.migration-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.migration-row input[type="range"] {
    flex: 1;
}

.migration-row #migrationTimeLabel {
    min-width: 1.5rem;
    text-align: right;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.lang-select {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.85rem;
}

.lang-select select {
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
}

.lang-select-admin {
    display: inline-block;
}

.lang-select-admin select {
    padding: 0.4rem 0.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.85rem;
    cursor: pointer;
}

/* Map container - full screen */
.map-container {
    flex: 1;
    position: relative;
    min-width: 0;
}

#map {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    min-height: 400px;
    background: #1a1f26;
}

/* Sidebar toggle - visible on mobile */
.sidebar-toggle {
    display: none;
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 1100;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: background var(--transition), transform var(--transition);
}

.sidebar-toggle:hover {
    background: var(--surface-hover);
}

/* Map controls - floating panel */
.map-controls {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.25rem 0;
    transition: opacity var(--transition);
}

.toggle:hover {
    opacity: 0.9;
}

.toggle input {
    accent-color: var(--accent);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: background var(--transition), transform var(--transition);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-admin {
    background: var(--accent);
    color: #fff;
    border: none;
    text-align: center;
}

.btn-admin:hover {
    background: var(--accent-hover);
}

.btn-export {
    padding: 0.4rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-export:hover {
    background: var(--surface-hover);
}

/* Feature panels */
.migration-panel,
.compare-panel,
.stats-panel {
    position: absolute;
    z-index: 1000;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    animation: fadeIn 0.25s ease;
}

.migration-panel { bottom: 1rem; left: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.compare-panel { bottom: 1rem; right: 1rem; left: auto; display: flex; align-items: center; gap: 0.5rem; }
.stats-panel { bottom: 4rem; right: 1rem; max-width: 360px; }

.panel-toggle {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    padding: 0.2rem 0.4rem; font-size: 0.75rem; line-height: 1; margin-left: auto;
    transition: transform 0.2s;
}
.panel-toggle:hover { color: var(--text); }
.panel-toggle.collapsed { transform: rotate(-90deg); }
.panel-header-with-toggle { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; }
.panel-header-with-toggle h4 { margin: 0; flex: 1; }
.panel-body.collapsed { display: none !important; }
.stats-panel h4 { margin: 0 0 0.75rem 0; }
.charts-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.charts-row canvas { max-width: 160px; max-height: 140px; }


/* AI Chat widget */
.ai-chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 2000;
}

.ai-chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
    font-size: 1.4rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.ai-chat-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.5);
}

.ai-chat-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 340px;
    max-height: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    animation: fadeIn 0.2s ease;
}

.ai-chat-panel.open { display: flex; }

.ai-chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.95rem;
}

.ai-chat-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    padding: 0.25rem;
}

.ai-chat-close:hover { color: var(--text); }

.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    min-height: 180px;
    max-height: 280px;
}

.ai-msg {
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    line-height: 1.4;
    animation: fadeIn 0.2s ease;
}

.ai-msg-user {
    background: var(--accent);
    color: #fff;
    margin-left: 2rem;
}

.ai-msg-bot {
    background: var(--bg);
    border: 1px solid var(--border);
    margin-right: 2rem;
}

.ai-chat-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid var(--border);
}

.ai-chat-form input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
}

.ai-chat-form button {
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
}

.ai-chat-form button:hover { background: var(--accent-hover); }

/* Bird popup */
.bird-popup { max-width: 300px; font-size: 0.9rem; }
.bird-popup .popup-photo {
    width: 100%;
    max-height: 180px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
}
.bird-popup .popup-video {
    width: 100%;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.bird-popup .popup-video iframe {
    width: 100%;
    height: 200px;
    border: none;
    display: block;
}
.bird-popup .popup-title { margin: 0 0 0.5rem 0; font-size: 1rem; }
.bird-popup p { margin: 0.25rem 0; line-height: 1.4; }
.bird-popup .popup-desc { font-size: 0.85rem; color: var(--text-muted); }

.leaflet-popup-content-wrapper {
    background: var(--surface);
    color: var(--text);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.leaflet-popup-tip { background: var(--surface); }

.bird-marker span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.marker-cluster-small, .marker-cluster-medium, .marker-cluster-large {
    background-color: rgba(59, 130, 246, 0.4);
}

.marker-cluster div {
    background-color: var(--accent);
    color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        transform: translateX(-100%);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close { display: block; }
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .map-controls {
        top: auto;
        bottom: 5rem;
        right: 1rem;
    }

    .stats-panel { max-width: calc(100% - 2rem); }

    .sidebar-footer {
        flex-direction: column;
    }
}

@media (min-width: 769px) {
    .sidebar-close, .sidebar-toggle { display: none !important; }
}

/* Admin header (used in admin pages) */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.header h1 { margin: 0; font-size: 1.25rem; font-weight: 600; }

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.header-controls .toggle { display: flex; align-items: center; gap: 0.5rem; }
.export-buttons { display: flex; gap: 0.5rem; }

/* Admin panel */
.admin-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    height: calc(100vh - 60px);
}

.admin-map-wrap { position: relative; }
.admin-map-wrap #map { position: absolute; top: 0; left: 0; right: 0; bottom: 0; }

.admin-sidebar {
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: 1rem;
    overflow-y: auto;
}

.map-controls-admin { top: 0.75rem; right: 0.75rem; }

.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.95rem;
}

.form-group textarea { min-height: 80px; resize: vertical; }

.btn-primary {
    background: var(--success);
    color: #fff;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: filter var(--transition);
}

.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.login-box {
    max-width: 360px;
    margin: 4rem auto;
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.login-box h2 { margin-top: 0; margin-bottom: 1.5rem; }
.login-box .form-group { margin-bottom: 1rem; }
.login-box .btn-primary { margin-top: 0.5rem; }

.msg {
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.msg.error { background: rgba(248, 81, 73, 0.15); border: 1px solid #f85149; }
.msg.success { background: rgba(34, 197, 94, 0.15); border: 1px solid var(--success); }

.help-text, .coord-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.admin-sidebar h3, .admin-sidebar h4 { margin-top: 0; margin-bottom: 1rem; }
.sidebar-section { margin-top: 2rem; }

.bird-form .form-row { display: flex; flex-wrap: wrap; gap: 1rem; }
.bird-form .form-group.full-width { flex: 1 1 100%; }
.bird-form .form-group { flex: 1 1 200px; }

.bird-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    transition: background var(--transition);
}

.bird-item:hover { background: var(--surface-hover); }

.bird-color { width: 16px; height: 16px; border-radius: 50%; flex-shrink: 0; }
.bird-thumb { width: 40px; height: 40px; object-fit: cover; border-radius: var(--radius-sm); }
.bird-name { flex: 1; min-width: 0; }

.bird-item .btn-edit, .bird-item .btn-delete {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: filter var(--transition);
}

.bird-item .btn-edit { background: var(--accent); color: #fff; }
.bird-item .btn-delete { background: #ef4444; color: #fff; }

/* Species accordion */
.species-list-section { margin-top: 2rem; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.accordion-toggle {
    width: 100%; display: flex; align-items: center; gap: 0.5rem; padding: 1rem 1.25rem;
    background: var(--surface); border: none; color: var(--text); font-size: 1rem; font-weight: 600;
    cursor: pointer; text-align: left; transition: background var(--transition);
}
.accordion-toggle:hover { background: var(--surface-hover); }
.accordion-title { flex: 1; }
.accordion-icon { font-size: 0.75rem; opacity: 0.8; transition: transform var(--transition); }
.accordion-count { font-size: 0.9rem; font-weight: 400; opacity: 0.8; }
.accordion-content { padding: 1rem; background: var(--bg); border-top: 1px solid var(--border); }
.accordion-content.accordion-collapsed { display: none; }
.species-toolbar {
    display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; align-items: center;
}
.species-search {
    flex: 1; min-width: 180px; padding: 0.5rem 0.75rem;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); font-size: 0.9rem;
}
.species-toolbar select {
    padding: 0.5rem 0.75rem; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-size: 0.9rem; cursor: pointer;
}
.bird-list-inner { max-height: 400px; overflow-y: auto; }
.species-pagination {
    display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border);
}
.pagination-btn {
    padding: 0.4rem 0.75rem; background: var(--accent); color: #fff; border: none;
    border-radius: var(--radius-sm); cursor: pointer; font-size: 0.85rem;
}
.pagination-btn:hover { filter: brightness(1.1); }
.pagination-info { font-size: 0.9rem; color: var(--text-muted); }

.population-panel .stats-table { width: 100%; font-size: 0.85rem; margin-top: 0.5rem; }
.population-panel .stats-table th, .population-panel .stats-table td { padding: 0.35rem 0.5rem; text-align: left; }
.population-panel .stats-table th { border-bottom: 1px solid var(--border); }

.settings-form .toggle-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

/* Admin pages - allow scroll when content is long */
body.admin-scroll,
body.admin-page {
    overflow-x: hidden;
    overflow-y: auto !important;
}

.admin-content {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    padding-bottom: 3rem;
}

.btn-danger {
    background: #ef4444;
    color: #fff;
    border: none;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-top: 0.5rem;
    transition: filter var(--transition);
}

.btn-danger:hover { filter: brightness(1.1); }