/* HAMeter Web UI Styles */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --bg-sidebar: #0f172a;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --danger: #dc2626;
    --border: #334155;
    --radius: 8px;
    --sidebar-width: 240px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s;
}

.sidebar-header {
    padding: 0 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.5rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    display: inline-block;
}

.status-dot.running { background: var(--success); }
.status-dot.starting, .status-dot.restarting { background: var(--warning); }
.status-dot.error { background: var(--error); }
.status-dot.stopped, .status-dot.unconfigured { background: var(--text-muted); }
.status-dot.discovery { background: var(--accent); }

.nav-links {
    list-style: none;
    padding: 0.5rem 0;
}

.nav-separator {
    padding: 1rem 1.25rem 0.25rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    font-size: 0.9rem;
}

.nav-link:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--accent);
    color: #fff;
    font-weight: 500;
}

.nav-icon {
    width: 1.2em;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

.top-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.top-bar .page-title {
    font-size: 1.25rem;
    font-weight: 600;
    flex: 1;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.content-area {
    padding: 1.5rem;
    flex: 1;
    max-width: 1200px;
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-card); color: var(--text-primary); border-color: var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-link { background: none; border: none; color: var(--accent); text-decoration: underline; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }
.btn-lg { padding: 0.75rem 2rem; font-size: 1rem; }
.btn-icon { background: none; border: none; color: var(--accent); cursor: pointer; padding: 0.25rem 0.5rem; font-size: 0.8rem; }
.btn-group { display: flex; gap: 0.5rem; }

/* Forms */
.config-form-container {
    max-width: 600px;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group input[readonly] {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.form-group .required { color: var(--error); }

.form-inline {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.form-inline label { margin-bottom: 0; }
.form-inline input { width: auto; }

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    align-items: center;
}

.input-group {
    display: flex;
    gap: 0.5rem;
}

.input-group input { flex: 1; }

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

.data-table th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.data-table tr:hover td {
    background: rgba(59, 130, 246, 0.05);
}

.actions-cell {
    display: flex;
    gap: 0.4rem;
}

.empty-row td {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-protocol {
    background: var(--bg-secondary);
    color: var(--accent);
    border: 1px solid var(--border);
}

.badge-cost {
    background: var(--bg-secondary);
    color: var(--success, #22c55e);
    border: 1px solid var(--border);
}

/* Meter cards */
.meter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.meter-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.meter-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.meter-card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.meter-card-body {
    padding: 1rem;
}

.meter-reading {
    text-align: center;
    padding: 0.75rem 0;
    margin-bottom: 0.75rem;
}

.reading-value {
    font-size: 2rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.reading-unit {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.meter-details {
    border-top: 1px solid var(--border);
    padding-top: 0.75rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 0.2rem 0;
    font-size: 0.85rem;
}

.detail-label { color: var(--text-muted); }
.detail-value { color: var(--text-secondary); font-variant-numeric: tabular-nums; }

/* Flash / toast messages */
.flash {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.flash-success { background: rgba(34, 197, 94, 0.15); border: 1px solid var(--success); color: var(--success); }
.flash-error { background: rgba(239, 68, 68, 0.15); border: 1px solid var(--error); color: var(--error); }
.flash-warning { background: rgba(245, 158, 11, 0.15); border: 1px solid var(--warning); color: var(--warning); }

.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    animation: slideIn 0.3s ease;
    min-width: 250px;
}

.toast-success { background: var(--success); color: #fff; }
.toast-error { background: var(--error); color: #fff; }
.toast-info { background: var(--accent); color: #fff; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Restart banner */
.restart-banner {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid var(--warning);
    color: var(--warning);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Test result */
.test-result {
    margin-top: 1rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
}

.test-success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.test-error { background: rgba(239, 68, 68, 0.15); color: var(--error); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state p { margin-bottom: 1rem; }

/* Log viewer */
.log-viewer {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-family: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    height: calc(100vh - 200px);
    overflow-y: auto;
}

.log-line { padding: 1px 0; white-space: pre-wrap; word-break: break-all; }
.log-ts { color: var(--text-muted); }
.log-level { font-weight: 600; }
.log-name { color: var(--text-muted); }
.log-debug .log-level { color: var(--text-muted); }
.log-info .log-level { color: var(--text-primary); }
.log-warning .log-level { color: var(--warning); }
.log-error .log-level { color: var(--error); }

.log-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.log-controls select,
.log-controls input[type="text"] {
    padding: 0.3rem 0.5rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.8rem;
}

/* Discovery page */
.discovery-info {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.discovery-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.discovery-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-size: 0.9rem;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Calibration */
.calibration-info {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.calibration-result {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.result-item { text-align: center; }
.result-label { display: block; font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.result-value { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Setup page */
.setup-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.setup-container {
    width: 100%;
    max-width: 480px;
    position: relative;
}

.setup-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
}

.setup-card h2 {
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

.setup-card p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.setup-card .form-group {
    text-align: left;
}

.setup-card .form-actions {
    justify-content: center;
    flex-wrap: wrap;
}

.setup-logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.setup-success {
    font-size: 3rem;
    color: var(--success);
    margin-bottom: 1rem;
}

.setup-error {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--error);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    z-index: 1000;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 1rem auto;
}

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

/* Utilities */
.hidden { display: none !important; }
.text-muted { color: var(--text-muted); }
code {
    background: var(--bg-input);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.85em;
}

/* Cost factor editor */
.cost-factor-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-top: 0.5rem;
}

.cost-factor-row .cf-name {
    flex: 2;
    padding: 0.4rem 0.6rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.cost-factor-row .cf-rate {
    flex: 1;
    padding: 0.4rem 0.6rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.85rem;
}

.cost-factor-row .cf-type {
    width: 100px;
    padding: 0.4rem 0.4rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.85rem;
}

/* Cost display on dashboard */
.meter-cost {
    text-align: center;
    padding: 0.75rem 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.cost-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
    font-variant-numeric: tabular-nums;
}

.cost-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.cost-actions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .hamburger {
        display: block;
    }

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

    .discovery-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .log-controls {
        flex-wrap: wrap;
    }
}