/* =====================================================
   City Selector - Step 0
   Professional city selection interface
   ===================================================== */

/* ── Step 0 Container ────────────────────────────────── */
#step-0 {
    position: relative;
    overflow: hidden;
}

/* City Selection Container */
.city-selector-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
    position: relative;
    z-index: 1;
}

.city-selector-header {
    text-align: center;
    margin-bottom: 32px;
    padding-top: 10px;
}

.city-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
    color: #0D3B6E;
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 20px;
    border: 1px solid #93C5FD;
    margin-bottom: 16px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.city-selector-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #0D3B6E;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.city-selector-header p {
    color: #64748B;
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Loading animation for solar data */
.solar-stats-loading {
    grid-column: span 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 30px 20px;
}

.solar-stats-loading p {
    color: #64748B;
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
}

.loading-sun-mini {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: radial-gradient(circle, #FDE68A 30%, #F59E0B 70%);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
    animation: loadingSunPulse 1.2s ease-in-out infinite;
}

@keyframes loadingSunPulse {
    0%, 100% { transform: scale(0.9); box-shadow: 0 0 20px rgba(245, 158, 11, 0.4); }
    50% { transform: scale(1.1); box-shadow: 0 0 40px rgba(245, 158, 11, 0.6); }
}

/* Loading pulse animation for forecast stat values */
.loading-pulse {
    animation: statPulse 1s ease-in-out infinite;
    color: #94A3B8 !important;
}

@keyframes statPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* Forecast chart loading overlay */
.forecast-chart-container.loading {
    position: relative;
    min-height: 200px;
}

.forecast-chart-container.loading::after {
    content: attr(data-loading);
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(4px);
    border-radius: 12px;
    font-weight: 600;
    color: #64748B;
    font-size: 0.95rem;
    z-index: 10;
}

@media (max-width: 768px) {
    .city-selector-header h2 { font-size: 1.5rem; }
    .solar-stats-loading { grid-column: span 2; }
}

@media (prefers-reduced-motion: reduce) {
    .loading-sun-mini,
    .loading-pulse { animation: none; }
}

/* Search Box */
.city-search-container {
    position: relative;
    max-width: 500px;
    margin: 0 auto 32px;
}

.city-search-input {
    width: 100%;
    padding: 16px 20px 16px 52px;
    font-size: 1.05rem;
    border: 2px solid #E2E8F0;
    border-radius: 16px;
    outline: none;
    transition: all 0.3s ease;
    background: white;
    color: #1E293B;
    font-family: 'Inter', sans-serif;
}

.city-search-input:focus {
    border-color: #F59E0B;
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
}

.city-search-input::placeholder {
    color: #94A3B8;
}

.city-search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: #94A3B8;
    pointer-events: none;
}

/* Autocomplete Dropdown */
.city-autocomplete {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: white;
    border: 2px solid #E2E8F0;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    max-height: 320px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.city-autocomplete.active {
    display: block;
}

.city-autocomplete-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid #F1F5F9;
}

.city-autocomplete-item:last-child {
    border-bottom: none;
}

.city-autocomplete-item:hover,
.city-autocomplete-item.highlighted {
    background: #FFF7ED;
}

.city-autocomplete-item .city-name {
    font-weight: 600;
    color: #1E293B;
    font-size: 0.95rem;
}

.city-autocomplete-item .city-province {
    font-size: 0.8rem;
    color: #64748B;
    margin-left: auto;
    background: #F1F5F9;
    padding: 2px 8px;
    border-radius: 4px;
}

.city-autocomplete-item .city-icon {
    font-size: 1.2rem;
}

/* Province Tabs */
.province-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.province-tab {
    padding: 8px 16px;
    border: 2px solid #E2E8F0;
    border-radius: 24px;
    background: white;
    color: #475569;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.province-tab:hover {
    border-color: #F59E0B;
    color: #D97706;
    background: #FFFBEB;
}

.province-tab.active {
    background: #0D3B6E;
    color: white;
    border-color: #0D3B6E;
}

/* City Grid */
.city-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 32px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.city-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: white;
    border: 2px solid #E2E8F0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.city-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: transparent;
    transition: background 0.2s;
}

.city-card:hover {
    border-color: #F59E0B;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
}

.city-card:hover::before {
    background: #F59E0B;
}

.city-card.selected {
    border-color: #0D3B6E;
    background: #EFF6FF;
    box-shadow: 0 4px 12px rgba(13, 59, 110, 0.15);
}

.city-card.selected::before {
    background: #0D3B6E;
}

.city-card-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
}

.city-card-info {
    flex: 1;
    min-width: 0;
}

.city-card-name {
    font-weight: 600;
    color: #1E293B;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.city-card-meta {
    font-size: 0.75rem;
    color: #64748B;
    margin-top: 2px;
}

.city-card-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid #CBD5E1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
    font-size: 0.7rem;
}

.city-card.selected .city-card-check {
    background: #0D3B6E;
    border-color: #0D3B6E;
    color: white;
}

/* Selected City Display */
.selected-city-display {
    display: none;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
    border: 2px solid #93C5FD;
    border-radius: 16px;
    margin-bottom: 24px;
}

.selected-city-display.active {
    display: flex;
}

.selected-city-display .city-big-icon {
    font-size: 2.5rem;
}

.selected-city-display .city-details {
    flex: 1;
}

.selected-city-display .city-details h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0D3B6E;
    margin: 0 0 4px;
}

.selected-city-display .city-details p {
    color: #475569;
    margin: 0;
    font-size: 0.9rem;
}

.selected-city-display .city-sun-info {
    display: flex;
    gap: 16px;
}

.selected-city-display .sun-stat {
    text-align: center;
    padding: 8px 12px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.selected-city-display .sun-stat .stat-value {
    font-weight: 700;
    color: #0D3B6E;
    font-size: 1.1rem;
}

.selected-city-display .sun-stat .stat-label {
    font-size: 0.7rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-change-city {
    background: none;
    border: 1px solid #93C5FD;
    color: #2563EB;
    padding: 6px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-change-city:hover {
    background: #2563EB;
    color: white;
}

/* Continue Button */
.city-continue-section {
    text-align: center;
    padding: 20px 0;
}

.btn-city-continue {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #0D3B6E, #1E5AA8);
    border: none;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(13, 59, 110, 0.25);
}

.btn-city-continue:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(13, 59, 110, 0.35);
}

.btn-city-continue:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-city-continue .btn-arrow {
    font-size: 1.2rem;
    transition: transform 0.2s;
}

.btn-city-continue:hover:not(:disabled) .btn-arrow {
    transform: translateX(4px);
}

/* Solar Potential Preview */
.solar-potential-preview {
    display: none;
    margin-top: 24px;
    padding: 20px;
    background: white;
    border: 2px solid #E2E8F0;
    border-radius: 16px;
}

.solar-potential-preview.active {
    display: block;
}

.solar-potential-preview h4 {
    font-size: 1rem;
    color: #0D3B6E;
    margin: 0 0 16px;
    text-align: center;
}

.solar-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.solar-stat-card {
    text-align: center;
    padding: 16px 12px;
    background: #F8FAFC;
    border-radius: 10px;
    border: 1px solid #E2E8F0;
}

.solar-stat-card .stat-icon {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

.solar-stat-card .stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #0D3B6E;
}

.solar-stat-card .stat-label {
    font-size: 0.72rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* No Results */
.city-no-results {
    text-align: center;
    padding: 40px;
    color: #94A3B8;
}

.city-no-results .no-results-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .city-selector-header h2 {
        font-size: 1.4rem;
    }

    .city-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        max-height: 350px;
    }

    .city-card {
        padding: 10px 12px;
    }

    .city-card-name {
        font-size: 0.82rem;
    }

    .province-tabs {
        gap: 6px;
    }

    .province-tab {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .solar-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .selected-city-display {
        flex-direction: column;
        text-align: center;
    }

    .selected-city-display .city-sun-info {
        justify-content: center;
    }

    .btn-city-continue {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .city-grid {
        grid-template-columns: 1fr;
    }

    .city-search-input {
        padding: 14px 16px 14px 44px;
        font-size: 0.95rem;
    }
}