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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    background: #fafafa;
    min-height: 100vh;
    padding: 0;
    color: #1a1a1a;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

header {
    text-align: left;
    color: #1a1a1a;
    margin-bottom: 48px;
    padding: 32px 0 24px;
    border-bottom: 1px solid #e5e5e5;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    color: #1a1a1a;
}

.subtitle {
    font-size: 1rem;
    color: #8a8a8a;
    font-weight: 400;
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin-bottom: 48px;
}

section {
    background: #fafafa;
    border-radius: 8px;
    padding: 32px;
    box-shadow: none;
    border: none;
}

section h2 {
    margin-bottom: 24px;
    color: #1a1a1a;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    border-bottom: none;
    padding-bottom: 0;
}

/* Add Manager Form */
.add-manager-section {
    grid-column: 1;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    margin-top: 15px;
    padding: 12px;
    background: #fee;
    color: #c33;
    border-radius: 8px;
    display: none;
}

.error-message.show {
    display: block;
}

/* Chart Section */
.chart-section {
    margin-bottom: 0;
    padding: 0 !important;
}

.chart-container {
    position: relative;
    height: 600px !important;
    min-height: 600px;
    width: 100% !important;
    background: #fafafa;
    padding: 0;
    border-radius: 0;
    overflow: visible;
}

.chart-container > div {
    width: 100% !important;
    height: 100% !important;
}

@media (max-width: 768px) {
    .chart-container {
        height: 400px;
        min-height: 400px;
        overflow: visible;
    }
    
    .chart-section {
        padding: 16px;
        overflow: visible;
    }
    
    .chart-section h2 {
        font-size: 1.25rem;
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .chart-container {
        height: 400px;
    }
    
    .chart-section {
        padding: 20px;
    }
}

/* Leaderboard */
.leaderboard-section {
    padding: 48px;
}

.leaderboard-section h2 {
    margin-bottom: 32px;
    font-size: 1.5rem;
}

.leaderboard {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.leaderboard-item {
    display: grid;
    grid-template-columns: 50px 1fr auto;
    gap: 20px;
    align-items: center;
    padding: 14px 20px;
    background: #fafafa;
    border-radius: 6px;
    transition: all 0.2s ease;
    border: 1px solid #e5e5e5;
    border-left: 3px solid #e5e5e5;
}

@media (max-width: 480px) {
    .leaderboard-item {
        grid-template-columns: 28px 1fr;
        gap: 6px;
        padding: 8px;
    }
    
    .price-percent-combined {
        grid-column: 1 / -1;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        margin-top: 4px;
        padding-left: 34px;
        gap: 8px;
    }
    
    .current-price {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .time-periods {
        gap: 4px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    
    .time-period {
        min-width: 32px;
        flex-shrink: 0;
    }
}

.leaderboard-item:hover {
    background: #f5f5f5;
    border-color: #d0d0d0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.leaderboard-item.first {
    background: #fffbf0;
    border-left-color: #f5c842;
}

.leaderboard-item.second {
    background: #f8f8f8;
    border-left-color: #c0c0c0;
}

.leaderboard-item.third {
    background: #faf5f0;
    border-left-color: #d4a574;
}

.rank {
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    color: #8a8a8a;
}

.leaderboard-item.first .rank,
.leaderboard-item.second .rank,
.leaderboard-item.third .rank {
    color: #1a1a1a;
}

.manager-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.manager-name {
    font-weight: 500;
    font-size: 1rem;
    color: #1a1a1a;
}

.stock-symbol {
    color: #8a8a8a;
    font-size: 1rem;
    font-weight: 400;
}

.price-percent-combined {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.manager-info .current-price {
    font-weight: 500;
    font-size: 1rem;
    color: #1a1a1a;
    margin-top: 2px;
}

.time-periods {
    display: flex;
    gap: 16px;
    align-items: center;
}

.mobile-only {
    display: none;
}

.desktop-only {
    display: flex;
}

@media (max-width: 480px) {
    .mobile-only {
        display: flex;
    }
    
    .desktop-only {
        display: none;
    }
}

.time-period {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    min-width: 50px;
}

.period-label {
    font-size: 0.75rem;
    color: #8a8a8a;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.period-value {
    font-size: 0.875rem;
    font-weight: 600;
}

.period-value.positive {
    color: #10b981;
    font-weight: 600;
}

.period-value.negative {
    color: #ef4444;
    font-weight: 600;
}

.period-value.no-data {
    color: #1a1a1a;
}

/* Managers List */
.managers-section {
}

.managers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.manager-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.manager-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.manager-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.manager-card-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: #333;
}

.delete-btn {
    background: #ef4444;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 5px;
    font-size: 0.85rem;
    cursor: pointer;
    width: auto;
    transition: background 0.2s;
}

.delete-btn:hover {
    background: #dc2626;
}

.manager-card-stock {
    color: #666;
    margin-bottom: 10px;
}

.manager-card-price {
    font-size: 0.9rem;
    color: #888;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-style: italic;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: #999;
}

.empty-state p {
    margin-top: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }

    header {
        padding: 24px 0 20px;
        margin-bottom: 24px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    section {
        padding: 20px;
    }

    .leaderboard-section {
        padding: 20px;
    }

    .leaderboard-section h2 {
        font-size: 1.125rem;
        margin-bottom: 16px;
    }

    .leaderboard {
        gap: 8px;
    }

    .leaderboard-item {
        grid-template-columns: 35px 1fr auto;
        gap: 10px;
        padding: 10px 12px;
    }

    .rank {
        font-size: 0.875rem;
    }

    .manager-name {
        font-size: 0.875rem;
    }

    .stock-symbol {
        font-size: 0.875rem;
    }

    .current-price {
        font-size: 0.875rem;
    }

    .price-percent-combined {
        gap: 4px;
    }

    .time-periods {
        gap: 8px;
    }

    .time-period {
        min-width: 40px;
    }

    .period-label {
        font-size: 0.625rem;
    }

    .period-value {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 8px;
    }

    header {
        padding: 20px 0 16px;
        margin-bottom: 20px;
    }

    header h1 {
        font-size: 1.25rem;
    }

    section {
        padding: 16px;
    }
    
    .chart-container {
        height: 350px;
        min-height: 350px;
        overflow: visible;
    }
    
    .chart-section {
        padding: 12px;
        overflow: visible;
    }

    .leaderboard-section {
        padding: 16px;
    }

    .leaderboard-section h2 {
        font-size: 1rem;
        margin-bottom: 12px;
    }

    .leaderboard {
        gap: 6px;
    }

    .leaderboard-item {
        grid-template-columns: 28px 1fr;
        gap: 6px;
        padding: 8px;
    }

    .rank {
        font-size: 0.8125rem;
    }

    .manager-info {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 6px;
        flex-wrap: wrap;
    }

    .manager-name {
        font-size: 0.8125rem;
    }

    .stock-symbol {
        font-size: 0.8125rem;
    }

    .manager-info .current-price {
        display: none;
    }
    
    .manager-info .time-periods {
        display: flex;
        flex-direction: row;
        gap: 4px;
        align-items: center;
        margin-left: auto;
    }
    
    .price-percent-combined {
        display: none;
    }

    .time-period {
        min-width: 28px;
        flex-shrink: 0;
    }
    
    .current-price {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .period-label {
        font-size: 0.5625rem;
    }

    .period-value {
        font-size: 0.6875rem;
    }
}