:root {
    --bg-color: #ffffff;
    --surface-color: #ffffff;
    --surface-hover: #f8f9fa;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --accent-color: #1a73e8;
    --accent-hover: #e8f0fe;
    --border-color: #dadce0;
    
    --day-bg: #f8f9fa;
    --night-bg: #f1f3f4;
}

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

body {
    font-family: 'Inter', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.view-toggle {
    display: flex;
    background-color: #f1f3f4;
    border-radius: 20px;
    padding: 2px;
}

.view-toggle button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 16px;
    border-radius: 18px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.view-toggle button:hover:not(.active) {
    color: var(--text-primary);
    background-color: #e8eaed;
}

.view-toggle button.active {
    background-color: #ffffff;
    color: var(--accent-color);
    box-shadow: 0 1px 2px rgba(60,64,67,0.3);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.table-container {
    flex: 1;
    padding: 1rem;
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
}

.weather-table {
    display: inline-flex;
    flex-direction: column;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(60,64,67,0.1);
    
    /* Make the table itself the scroller so sticky works! */
    overflow-x: auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

.grid-row {
    display: flex;
    flex-wrap: nowrap;
    border-bottom: 1px solid var(--border-color);
    width: max-content;
    min-width: 100%;
}

.grid-row:last-child {
    border-bottom: none;
}

.grid-row:hover:not(.header-row) {
    background-color: var(--surface-hover);
}

.grid-cell {
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--border-color);
    flex: 0 0 100px; /* Compact width */
}

.grid-cell:last-child {
    border-right: none;
}

.fixed-cell {
    position: sticky;
    left: 0;
    z-index: 10;
    align-items: flex-start;
    justify-content: center;
    flex: 0 0 40px;
    background-color: var(--surface-color);
    border-right: 2px solid var(--border-color); /* Thicker border to separate fixed col */
    writing-mode: vertical-rl;
    text-orientation: sideways;
}

.grid-row:hover .fixed-cell {
    background-color: var(--surface-hover);
}

.header-row .grid-cell {
    background-color: #f1f3f4;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-align: center;
    padding: 0.5rem;
}

.header-row .fixed-cell {
    background-color: #f1f3f4;
    z-index: 11;
}

.loc-header {
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.loc-name {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.loc-link {
    color: inherit;
    text-decoration: none;
}

.loc-link:hover {
    text-decoration: underline;
}

.weather-cell {
    text-align: center;
}

.weather-cell.day {
    background-color: var(--day-bg);
}

.weather-cell.night {
    background-color: var(--night-bg);
}

.weather-icon-container {
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.weather-icon-container img {
    max-width: 100%;
    max-height: 100%;
}

.temp {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.pop {
    font-size: 0.75rem;
    color: var(--accent-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 2px;
    margin-bottom: 2px;
    min-height: 1rem;
}

.pop.no-pop {
    visibility: hidden;
}

.desc {
    font-size: 0.7rem;
    line-height: 0.82rem;
    color: var(--text-secondary);
    display: -webkit-box;
    height: 1.64rem;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.loader {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 600px) {
    .app-header {
        padding: 0.5rem 1rem;
    }
    
    .table-container {
        padding: 0.5rem;
    }
    
    .grid-cell {
        flex: 0 0 90px;
        padding: 0.4rem;
    }
    
    .fixed-cell {
        flex: 0 0 40px;
    }
    
    .loc-name {
        font-size: 0.8rem;
    }
}