/* Modern Dark Theme CSS Design System */
:root {
    --bg-main: #060913;
    --bg-card: rgba(17, 24, 39, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-indigo: #6366f1;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-warning: #f59e0b;
    --accent-crimson: #ef4444;
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background: radial-gradient(circle at top, #0f172a, #090d16, var(--bg-main));
    color: var(--text-primary);
    font-family: var(--font-stack);
    line-height: 1.5;
    min-height: 100vh;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 10px var(--accent-indigo));
}

header h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #ffffff, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.status-banner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-weight: 500;
    font-size: 0.9rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.pulse-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-emerald);
    box-shadow: 0 0 10px var(--accent-emerald);
    animation: pulse 1.8s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    100% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 15px var(--accent-emerald); }
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
    flex-grow: 1;
}

.card {
    grid-column: span 6;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.12);
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.3px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* Specific Card Layout Span Sizes */
.control-card { grid-column: span 5; }
.stats-card { grid-column: span 7; }
.chart-card { grid-column: span 12; }
.table-card { grid-column: span 12; }
.log-card { grid-column: span 6; }

@media (max-width: 1024px) {
    .control-card, .stats-card, .log-card {
        grid-column: span 12;
    }
}

/* Button Styling */
.mode-buttons-group {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.btn {
    font-family: var(--font-stack);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.btn-mode.active {
    background: var(--accent-indigo);
    color: #ffffff;
    border-color: var(--accent-indigo);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

/* Failsafe Box style */
.failsafe-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    margin-bottom: 1.5rem;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.failsafe-alert-icon {
    font-size: 1.5rem;
    color: var(--accent-crimson);
}

.failsafe-alert-text strong {
    color: var(--accent-crimson);
    font-size: 0.95rem;
}

.failsafe-alert-text p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.btn-recover {
    margin-left: auto;
    background: var(--accent-crimson);
    color: #ffffff;
    border-color: var(--accent-crimson);
}

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

/* Manual panel disabled overlay logic */
.manual-panel {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    transition: opacity 0.3s ease;
}

.manual-panel.disabled {
    opacity: 0.3;
    pointer-events: none;
}

.manual-panel h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.panel-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.control-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}

.control-group input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    outline: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-indigo);
    box-shadow: 0 0 10px var(--accent-indigo);
    cursor: pointer;
    transition: transform 0.1s ease;
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.control-group select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.5rem;
    outline: none;
}

.control-group select option {
    background: #0f172a;
}

.toggle-group {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

/* Switch Toggle Styling (iOS style) */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: #ffffff;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-emerald);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

/* Telemetry Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.stat-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

/* Combined Chart Card */
.chart-container {
    width: 100%;
    height: 350px;
    position: relative;
}

/* Schedule Table */
.table-scroll {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

th, td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-on { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-off { background: rgba(239, 68, 68, 0.15); color: var(--accent-crimson); border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-eco { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }

.table-loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
}

/* Monospace Log Items */
.log-container {
    height: 220px;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-item {
    display: flex;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    padding-bottom: 0.25rem;
}

.log-time {
    color: var(--accent-cyan);
    white-space: nowrap;
}

.log-tag {
    font-weight: 600;
    text-transform: uppercase;
}

.log-tag.info { color: var(--accent-cyan); }
.log-tag.warn { color: var(--accent-warning); }
.log-tag.error { color: var(--accent-crimson); }
.log-tag.trace { color: var(--text-secondary); }

.log-desc {
    color: var(--text-primary);
}

.log-loading {
    color: var(--text-secondary);
    text-align: center;
    margin: auto;
}

/* Hide helper utilities */
.hidden { display: none !important; }

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
}