/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    min-height: 100vh;
}

/* Login page styles */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    font-size: 24px;
    margin-bottom: 8px;
    color: #1a73e8;
}

.login-card .subtitle {
    color: #666;
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #444;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #1a73e8;
}

.form-hint {
    display: block;
    font-size: 12px;
    color: #888;
    margin-top: 4px;
}

button[type="submit"],
.btn-primary {
    width: 100%;
    padding: 14px;
    background: #1a73e8;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

button[type="submit"]:hover,
.btn-primary:hover {
    background: #1557b0;
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.error-message {
    background: #fee;
    color: #c00;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

/* Dashboard styles */
.dashboard-header {
    background: white;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.dashboard-header h1 {
    font-size: 20px;
    color: #1a73e8;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info span {
    color: #666;
}

.btn-secondary {
    padding: 8px 16px;
    background: #f1f3f4;
    color: #333;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

.dashboard-main {
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card h2 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.loading {
    color: #888;
    text-align: center;
    padding: 20px;
}

.error {
    color: #c00;
    background: #fee;
    padding: 12px;
    border-radius: 8px;
}

.info {
    color: #666;
    text-align: center;
    padding: 20px;
}

/* Station info grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-item .label {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.info-item .value {
    font-size: 14px;
    font-weight: 500;
}

/* Energy flow grid */
.energy-flow-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.energy-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.energy-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.energy-label {
    font-size: 12px;
    color: #666;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.energy-value {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.energy-sub {
    font-size: 12px;
    color: #888;
    margin-top: 4px;
}

.energy-item.solar {
    border-left: 4px solid #ffc107;
}

.energy-item.battery {
    border-left: 4px solid #4caf50;
}

.energy-item.grid {
    border-left: 4px solid #2196f3;
}

.energy-item.load {
    border-left: 4px solid #ff5722;
}

/* Mode buttons */
.mode-current {
    margin-bottom: 16px;
    color: #666;
}

.mode-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.mode-btn {
    padding: 14px;
    background: #f1f3f4;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.mode-btn:hover {
    background: #e8eaed;
}

.mode-btn.active {
    background: #e3f2fd;
    border-color: #1a73e8;
    color: #1a73e8;
}

/* Smart loads */
.smart-loads-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.smart-load-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.load-name {
    font-weight: 500;
}

.load-status {
    font-size: 12px;
    color: #666;
}

.load-controls {
    display: flex;
    gap: 8px;
}

.btn-on,
.btn-off {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.btn-on {
    background: #4caf50;
    color: white;
}

.btn-off {
    background: #f44336;
    color: white;
}

.btn-on:hover,
.btn-off:hover {
    opacity: 0.9;
}

/* Status messages */
.status-message {
    margin-top: 16px;
    padding: 10px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
}

.status-message.success {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-message.error {
    background: #ffebee;
    color: #c62828;
}

/* Small buttons */
.btn-small {
    padding: 4px 12px;
    font-size: 12px;
    background: #f1f3f4;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn-small:hover {
    background: #e0e0e0;
}

/* Schedule page */
.schedule-main {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Optimizer control panel */
.opt-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 24px;
}

.opt-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.opt-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.opt-stat-label {
    font-size: 11px;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.opt-stat-value {
    font-size: 14px;
    font-weight: 500;
}

.soc-critical { color: #c62828; font-weight: 700; }
.soc-low { color: #e65100; font-weight: 600; }

.optimizer-buttons {
    display: flex;
    gap: 10px;
}

.btn-danger {
    padding: 10px 24px;
    background: #f44336;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-danger:hover {
    background: #d32f2f;
}

.optimizer-buttons .btn-primary,
.optimizer-buttons .btn-danger {
    width: auto;
    padding: 10px 24px;
}

.optimizer-buttons .btn-secondary {
    padding: 10px 24px;
}

.status-on { color: #2e7d32; font-weight: 600; }
.status-off { color: #888; }

/* Arbitrage summary panel */
.opt-arbitrage-summary {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 16px;
}

.arb-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #888;
    margin-bottom: 12px;
    font-weight: 600;
}

.arb-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
}

.arb-label {
    font-size: 13px;
    color: #666;
}

.arb-value {
    font-size: 14px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.arb-buy { color: #1565c0; }
.arb-sell { color: #e65100; }
.arb-profit-pos { color: #2e7d32; }
.arb-profit-neg { color: #c62828; }
.arb-peak-shave { color: #6a1b9a; }
.arb-charge { color: #2e7d32; }

.arb-profit-row {
    margin-top: 4px;
    padding-top: 8px;
    border-top: 1px solid #e0e0e0;
}

.arb-warning {
    margin-top: 12px;
    padding: 10px 14px;
    background: #fff8e1;
    border-left: 3px solid #f9a825;
    border-radius: 0 6px 6px 0;
    font-size: 13px;
    color: #6d4c00;
    line-height: 1.4;
}

/* Chart header */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.pricing-averages {
    display: flex;
    gap: 24px;
    font-size: 14px;
}

.pricing-averages .avg-buy { color: #1565c0; }
.pricing-averages .avg-sell { color: #e65100; }
.pricing-averages strong { font-size: 15px; }

/* Pricing chart (Chart.js canvas) */
.chart-canvas-wrapper {
    position: relative;
    height: 260px;
    padding: 8px 0 0;
}

/* Schedule table */
.schedule-table-wrapper {
    overflow-x: auto;
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.schedule-table th {
    text-align: left;
    padding: 8px 12px;
    background: #f8f9fa;
    border-bottom: 2px solid #e0e0e0;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    color: #888;
    letter-spacing: 0.3px;
}

.schedule-table td {
    padding: 7px 12px;
    border-bottom: 1px solid #f0f0f0;
}

.schedule-table tr:hover {
    background: #fafbfc;
}

.schedule-table tr.current-row {
    background: #e3f2fd;
}

.schedule-table tr.current-row:hover {
    background: #bbdefb;
}

.schedule-table tr.night-row {
    background: rgba(30, 30, 60, 0.03);
}

.schedule-table tr.night-row:hover {
    background: rgba(30, 30, 60, 0.07);
}

.schedule-table tr.export-row {
    background: rgba(255, 152, 0, 0.06);
}

.schedule-table tr.export-row:hover {
    background: rgba(255, 152, 0, 0.12);
}

.schedule-table tr.peak-shave-row {
    background: rgba(106, 27, 154, 0.03);
}

.schedule-table tr.peak-shave-row:hover {
    background: rgba(106, 27, 154, 0.07);
}

.schedule-table tr.charge-row {
    background: rgba(76, 175, 80, 0.06);
}

.schedule-table tr.charge-row:hover {
    background: rgba(76, 175, 80, 0.12);
}

.schedule-table tr.export-row.night-row {
    background: rgba(255, 152, 0, 0.08);
}

.schedule-table tr.current-row.night-row {
    background: #c5cae9;
}

.night-icon {
    color: #9fa8da;
    font-size: 11px;
    margin-left: 2px;
}

.td-time {
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
    font-size: 13px;
}

.td-price {
    font-variant-numeric: tabular-nums;
    font-size: 13px;
}

.price-best {
    color: #2e7d32;
    font-weight: 600;
}

.profit-positive {
    color: #2e7d32;
    font-weight: 600;
}

.profit-marginal {
    color: #827717;
}

.profit-negative {
    color: #bbb;
}

.mode-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.mode-export {
    background: #fff3e0;
    color: #e65100;
}

.mode-self {
    background: #f1f3f4;
    color: #888;
}

.mode-peak-shave {
    background: #f3e5f5;
    color: #6a1b9a;
}

.mode-charge {
    background: #e8f5e9;
    color: #2e7d32;
}

.reason-cell {
    font-size: 12px;
    color: #999;
    max-width: 280px;
}

/* Nav active state */
.user-info .btn-secondary.active {
    background: #1a73e8;
    color: white;
}

.user-info .btn-secondary.active:hover {
    background: #1557b0;
}

.user-info a.btn-secondary {
    text-decoration: none;
}

/* Settings page */
.settings-main {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.settings-card h2 {
    margin-bottom: 24px;
}

.settings-section {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #f0f0f0;
}

.settings-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.settings-section h3 {
    font-size: 14px;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.settings-card .form-group {
    margin-bottom: 0;
}

.settings-card .form-group input,
.settings-card .form-group select {
    padding: 10px 14px;
    font-size: 14px;
}

.settings-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.settings-actions .btn-primary {
    width: auto;
    padding: 12px 32px;
}

.settings-actions .status-message {
    margin-top: 0;
}

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

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

/* Toggle switch (iOS-style) */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #ccc;
    border-radius: 26px;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background: #1a73e8;
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

/* System controls grid */
.controls-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: #f8f9fa;
    border-radius: 8px;
}

.control-row .control-label {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

/* Manual override form */
.manual-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.manual-form .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.manual-form .form-group {
    margin-bottom: 0;
}

.manual-form .form-group label {
    font-size: 12px;
    color: #888;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.manual-form .form-group select,
.manual-form .form-group input {
    padding: 10px 12px;
    font-size: 14px;
}

.manual-form .btn-primary {
    width: auto;
    padding: 10px 28px;
    align-self: flex-start;
}

/* Manual override active banner */
.manual-active-banner {
    padding: 16px;
    background: #fff8e1;
    border-left: 4px solid #ff9800;
    border-radius: 0 8px 8px 0;
}

.manual-active-banner .banner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.manual-active-banner .banner-mode {
    font-size: 16px;
    font-weight: 600;
    color: #e65100;
}

.manual-active-banner .banner-countdown {
    font-variant-numeric: tabular-nums;
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.manual-active-banner .btn-danger {
    padding: 8px 20px;
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-main {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .info-grid,
    .energy-flow-grid,
    .mode-buttons {
        grid-template-columns: 1fr;
    }

    .dashboard-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .opt-grid {
        grid-template-columns: 1fr;
    }

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

    .optimizer-buttons {
        flex-direction: column;
    }

    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .chart-canvas-wrapper {
        height: 220px;
    }

    .reason-cell {
        max-width: 150px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .settings-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}