:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --info-color: #0ea5e9;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --background-color: #f9fafb;
    --card-background: #ffffff;
    --text-color: #1f2937;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --header-height: 60px;
    --sidebar-width: 380px;
    --card-radius: 10px;
    --input-radius: 8px;
    --button-radius: 8px;
    --transition-speed: 0.3s;
}

.dark-theme {
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --secondary-color: #9ca3af;
    --success-color: #34d399;
    --info-color: #38bdf8;
    --warning-color: #fbbf24;
    --danger-color: #f87171;
    --background-color: #111827;
    --card-background: #1f2937;
    --text-color: #f9fafb;
    --border-color: #374151;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Oxygen,
        Ubuntu,
        Cantarell,
        "Open Sans",
        "Helvetica Neue",
        sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    transition:
        background-color var(--transition-speed),
        color var(--transition-speed);
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.app-header {
    height: var(--header-height);
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    box-shadow: 0 2px 8px var(--shadow-color);
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.app-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--background-color);
    border-right: 1px solid var(--border-color);
    padding: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: width var(--transition-speed);
}

.tabs {
    display: flex;
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-color);
    opacity: 0.7;
    transition:
        opacity var(--transition-speed),
        border-bottom var(--transition-speed);
    border-bottom: 3px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.tab-btn.active {
    opacity: 1;
    border-bottom: 3px solid var(--primary-color);
}

.tab-btn:hover {
    opacity: 0.9;
}

.tab-content {
    display: none;
    padding: 16px;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.map-container {
    flex: 1;
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
}

.card {
    background-color: var(--card-background);
    border-radius: var(--card-radius);
    box-shadow: 0 2px 8px var(--shadow-color);
    overflow: hidden;
    transition: box-shadow var(--transition-speed);
}

.card:hover {
    box-shadow: 0 4px 12px var(--shadow-color);
}

.card-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header h2 i {
    color: var(--primary-color);
}

.btn-collapse {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-speed);
}

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

.card-body {
    padding: 16px;
}

.input-group {
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.9rem;
}

.input-with-icon {
    position: relative;
    margin-bottom: 8px;
}

.input-with-icon i {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
}

.form-input {
    width: 100%;
    padding: 10px 12px 10px 32px;
    border: 1px solid var(--border-color);
    border-radius: var(--input-radius);
    background-color: var(--card-background);
    color: var(--text-color);
    font-size: 0.9rem;
    transition:
        border-color var(--transition-speed),
        box-shadow var(--transition-speed);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.range-slider {
    margin-top: 8px;
}

.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    margin-bottom: 8px;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: background var(--transition-speed);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: background var(--transition-speed);
}

.slider::-webkit-slider-thumb:hover {
    background: var(--primary-hover);
}

.slider::-moz-range-thumb:hover {
    background: var(--primary-hover);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.coordinates-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.coordinate-pair {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.coordinate-pair .input-group {
    margin-bottom: 0;
}

.button-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.btn {
    padding: 10px 16px;
    border-radius: var(--button-radius);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition:
        background-color var(--transition-speed),
        transform var(--transition-speed),
        box-shadow var(--transition-speed);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px var(--shadow-color);
}

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

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

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

.btn-secondary:hover {
    background-color: #4b5563;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #059669;
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: #0284c7;
}

.btn-icon {
    padding: 8px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: transparent;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background-color: var(--border-color);
    transform: none;
    box-shadow: none;
}

.btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 16px 0;
}

.coords-display {
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 8px;
    padding: 12px;
    font-size: 0.9rem;
    max-height: 150px;
    overflow-y: auto;
    font-family: monospace;
    white-space: pre-wrap;
    color: var(--text-color);
}

.dark-theme .coords-display {
    background-color: rgba(255, 255, 255, 0.05);
}

.wind-info {
    padding: 8px 0;
}

.wind-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.03);
    border-radius: 8px;
    transition: background-color var(--transition-speed);
}

.stat-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.dark-theme .stat-item {
    background-color: rgba(255, 255, 255, 0.05);
}

.dark-theme .stat-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.stat-label {
    font-weight: 500;
}

.stat-value {
    font-family: monospace;
    font-weight: 600;
}

.map-controls {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.map-legend {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 12px 16px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    font-size: 0.9rem;
    max-width: 200px;
}

.dark-theme .map-legend {
    background-color: rgba(31, 41, 55, 0.9);
}

.map-legend h3 {
    font-size: 0.9rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.legend-color {
    width: 20px;
    height: 4px;
    border-radius: 2px;
}

.map-instructions {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 10px 16px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    font-size: 0.9rem;
    max-width: 300px;
}

.dark-theme .map-instructions {
    background-color: rgba(31, 41, 55, 0.9);
}

.map-instructions p {
    display: flex;
    align-items: center;
    gap: 8px;
}

.data-table-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: rgba(0, 0, 0, 0.03);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1;
}

.dark-theme .data-table th {
    background-color: rgba(255, 255, 255, 0.05);
}

.empty-table {
    text-align: center;
    padding: 20px;
    color: var(--secondary-color);
}

.sessions-list,
.comparison-list {
    margin: 12px 0;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.session-item,
.comparison-item {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-speed);
}

.session-item:last-child,
.comparison-item:last-child {
    border-bottom: none;
}

.session-item:hover,
.comparison-item:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.dark-theme .session-item:hover,
.dark-theme .comparison-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.session-info,
.comparison-info {
    display: flex;
    flex-direction: column;
}

.session-title,
.comparison-title {
    font-weight: 500;
    font-size: 0.9rem;
}

.session-date,
.comparison-date {
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.session-actions,
.comparison-actions {
    display: flex;
    gap: 8px;
}

.session-btn,
.comparison-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-speed);
}

.session-btn:hover,
.comparison-btn:hover {
    background-color: var(--border-color);
}

.empty-list,
.empty-results {
    padding: 20px;
    text-align: center;
    color: var(--secondary-color);
}

.comparison-results {
    min-height: 200px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: var(--card-background);
    margin: 10% auto;
    width: 80%;
    max-width: 600px;
    border-radius: var(--card-radius);
    box-shadow: 0 4px 20px var(--shadow-color);
    animation: modalFadeIn 0.3s;
}

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

.modal-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.close-modal {
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
}

.modal-body {
    padding: 16px;
}

.modal-body h3 {
    font-size: 1.1rem;
    margin: 16px 0 8px;
}

.modal-body p {
    margin-bottom: 12px;
}

.modal-body ol {
    margin-left: 20px;
    margin-bottom: 16px;
}

.modal-body li {
    margin-bottom: 8px;
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--card-background);
    color: var(--text-color);
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 2000;
    display: none;
    animation: toastFadeIn 0.3s;
    max-width: 300px;
}

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

/* Responsive styles */
@media (max-width: 1024px) {
    .main-content {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        max-height: 40vh;
    }

    .map-container {
        height: 60vh;
    }
}

@media (max-width: 640px) {
    .app-header h1 {
        font-size: 1.2rem;
    }

    .logo i {
        font-size: 1.5rem;
    }

    .sidebar {
        padding: 0;
    }

    .card {
        border-radius: 0;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .modal-content {
        width: 95%;
        margin: 5% auto;
    }
}

/* Leaflet custom styles */
.leaflet-control-zoom {
    border: none !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15) !important;
}

.leaflet-control-zoom a {
    background-color: var(--card-background) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color) !important;
}

.leaflet-draw-toolbar a {
    background-color: var(--card-background) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color) !important;
}

.leaflet-popup-content-wrapper {
    border-radius: 8px !important;
    box-shadow: 0 3px 14px rgba(0, 0, 0, 0.2) !important;
}

.wind-popup {
    font-family: "Inter", sans-serif;
    font-size: 0.9rem;
}

.wind-popup-header {
    font-weight: 600;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.wind-popup-data {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
}

.wind-popup-label {
    font-weight: 500;
    color: var(--secondary-color);
}