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

:root {
    --primary-color: #0077be;
    --secondary-color: #00a8e8;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-bg: #0a1929;
    --card-bg: #132f4c;
    --card-hover: #1a3a52;
    --text-primary: #ffffff;
    --text-secondary: #8b9bb8;
    --border-color: #1e4976;
    --accent-color: #00d4ff;
    --led-off: #333;
    --led-on: #00ff00;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0a1929 0%, #0d2137 50%, #0a1929 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Prototype Banner */
.prototype-banner {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: #000;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(255, 193, 7, 0.3);
}

.banner-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.banner-icon {
    font-size: 1.5em;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.banner-text {
    font-size: 0.95em;
    line-height: 1.4;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Header */
header {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, var(--card-bg) 0%, #1a4d7a 100%);
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 119, 190, 0.3);
    border: 1px solid var(--border-color);
}

.header-content h1 {
    font-size: 2.8em;
    background: linear-gradient(135deg, #00d4ff 0%, #0077be 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2em;
    margin-bottom: 20px;
}

.system-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.info-badge {
    background: rgba(0, 212, 255, 0.1);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9em;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-weight: 500;
}

/* Sections */
section {
    background: var(--card-bg);
    padding: 35px;
    margin-bottom: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

h2 {
    color: var(--accent-color);
    margin-bottom: 25px;
    font-size: 1.8em;
    font-weight: 600;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    margin-bottom: 0;
}

/* Overview */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.overview-card {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.overview-card:hover {
    border-color: var(--accent-color);
}

.overview-card h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

.overview-card ul {
    list-style: none;
}

.overview-card ul li {
    color: var(--text-secondary);
    padding: 8px 0 8px 25px;
    position: relative;
}

.overview-card ul li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Status Grid */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.status-card {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid var(--border-color);
}

.status-icon {
    font-size: 2.5em;
}

.status-value {
    color: var(--accent-color);
    font-size: 1.8em;
    font-weight: 700;
}

/* Sensor Readings */
.readings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.reading-card {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    border: 2px solid var(--border-color);
    position: relative;
}

.reading-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
}

.reading-header h3 {
    color: var(--text-primary);
    font-size: 1.3em;
    margin-bottom: 5px;
}

.sensor-id, .sensor-pin {
    color: var(--text-secondary);
    font-size: 0.85em;
    font-family: 'Courier New', monospace;
}

.sensor-pin {
    color: var(--info-color);
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
}

.status-badge.ok {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.status-badge.alert {
    background: rgba(255, 193, 7, 0.2);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.status-badge.info {
    background: rgba(23, 162, 184, 0.2);
    color: var(--info-color);
    border: 1px solid var(--info-color);
}

.reading-value {
    font-size: 3em;
    font-weight: 700;
    color: var(--accent-color);
    margin: 15px 0;
    font-family: 'Courier New', monospace;
}

.reading-value .unit {
    font-size: 0.4em;
    color: var(--text-secondary);
}

.sensor-spec {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.sensor-spec small {
    color: var(--text-secondary);
    font-size: 0.8em;
}

.reading-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
}

.meta-item {
    color: var(--text-secondary);
    font-size: 0.85em;
}

/* Controls */
.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 25px;
}

.control-panel {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.control-panel h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

.hardware-info {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.hw-badge {
    background: rgba(0, 212, 255, 0.1);
    padding: 5px 12px;
    border-radius: 12px;
    font-size: 0.8em;
    color: var(--accent-color);
    border: 1px solid var(--border-color);
}

.valve-visual {
    background: rgba(0, 212, 255, 0.05);
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.valve-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
}

.pipe {
    width: 100px;
    height: 20px;
    background: linear-gradient(180deg, #555, #333);
    border: 2px solid #666;
}

.valve-body {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border: 3px solid #555;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.valve-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
}

.servo-angle {
    font-size: 1.2em;
    font-weight: 700;
    color: var(--accent-color);
}

.control-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.btn {
    padding: 15px 25px;
    font-size: 1.05em;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 600;
    flex: 1;
    transition: all 0.3s ease;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #20c997);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
    color: white;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #ff9800);
    color: #000;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3);
}

.btn-export {
    background: var(--dark-bg);
    color: var(--accent-color);
    padding: 10px 20px;
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-export:hover {
    background: var(--accent-color);
    color: var(--dark-bg);
}

.valve-status p {
    margin: 8px 0;
    color: var(--text-secondary);
}

.status-text {
    font-weight: 700;
    color: var(--danger-color);
    font-size: 1.1em;
}

.status-text.open {
    color: var(--success-color);
}

/* Alert Indicators */
.alert-indicators {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.indicator-box {
    background: rgba(0, 212, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.indicator-box h4 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.led-visual {
    padding: 30px;
}

.led-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--led-off);
    margin: 0 auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.led-circle.on {
    background: var(--led-on);
    box-shadow: 0 0 30px var(--led-on), 0 0 60px var(--led-on);
}

@keyframes blink-anim {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

.led-circle.blink {
    background: var(--led-on);
    animation: blink-anim 1s infinite;
}

.buzzer-visual, .relay-visual {
    padding: 30px;
}

.buzzer-icon, .relay-icon {
    font-size: 3em;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.buzzer-icon.active {
    opacity: 1;
    animation: shake 0.5s infinite;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.relay-icon.active {
    opacity: 1;
    color: var(--warning-color);
}

.indicator-controls {
    display: flex;
    gap: 10px;
    margin: 15px 0;
    flex-wrap: wrap;
}

.btn-small {
    padding: 8px 15px;
    font-size: 0.85em;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    flex: 1;
    min-width: 60px;
    transition: all 0.3s ease;
}

.btn-small:hover {
    transform: scale(1.05);
}

.status-mini {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-top: 10px;
}

.status-mini span {
    color: var(--accent-color);
    font-weight: 700;
}

/* Architecture */
.architecture-diagram {
    background: var(--dark-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.arch-central {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    margin-bottom: 30px;
}

.arch-central h3 {
    font-size: 2em;
    margin-bottom: 10px;
}

.arch-connections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.arch-group {
    background: rgba(0, 212, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.arch-group h4 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

.arch-group ul {
    list-style: none;
}

.arch-group ul li {
    color: var(--text-secondary);
    padding: 6px 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

/* Alerts */
.alerts-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.alert-controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.alert-feed {
    background: var(--dark-bg);
    border-radius: 15px;
    padding: 20px;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
}

.alert-item {
    padding: 18px;
    margin-bottom: 12px;
    border-radius: 10px;
    border-left: 4px solid;
    background: rgba(255, 255, 255, 0.03);
    display: flex;
    gap: 15px;
}

.alert-item.info { border-left-color: var(--info-color); }
.alert-item.success { border-left-color: var(--success-color); }
.alert-item.warning { border-left-color: var(--warning-color); }
.alert-item.danger { border-left-color: var(--danger-color); }

.alert-icon {
    font-size: 1.5em;
}

.alert-time {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85em;
    font-family: 'Courier New', monospace;
}

/* Specifications */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.spec-group {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.spec-table {
    width: 100%;
}

.spec-table tr {
    border-bottom: 1px solid var(--border-color);
}

.spec-table td {
    padding: 12px 0;
    color: var(--text-secondary);
}

.spec-table td:first-child {
    color: var(--text-primary);
    font-weight: 600;
    width: 40%;
}

.spec-table td:last-child {
    color: var(--accent-color);
}

/* Power Specs */
.power-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
}

.power-card {
    background: var(--dark-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.power-card h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

.power-card ul {
    list-style: none;
}

.power-card ul li {
    color: var(--text-secondary);
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.power-card ul li:before {
    content: "⚡";
    position: absolute;
    left: 0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--card-bg);
    margin: 3% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 1000px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
}

.close {
    color: var(--text-secondary);
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--danger-color);
}

.modal-filters {
    display: flex;
    justify-content: space-between;
    padding: 20px 30px;
    gap: 15px;
}

.filter-select {
    background: var(--dark-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: 8px;
    flex: 1;
}

.btn-export-logs {
    background: var(--accent-color);
    color: var(--dark-bg);
    padding: 10px 25px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}

.logs-container {
    padding: 30px;
    max-height: 500px;
    overflow-y: auto;
}

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

.logs-table th,
.logs-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.logs-table th {
    background: var(--dark-bg);
    color: var(--accent-color);
    font-weight: 600;
}

.badge {
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85em;
    font-weight: 600;
}

.badge.success {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success-color);
}

.badge.info {
    background: rgba(23, 162, 184, 0.2);
    color: var(--info-color);
}

/* Footer */
footer {
    background: var(--card-bg);
    padding: 30px;
    margin-top: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9em;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-color), var(--primary-color));
    border-radius: 10px;
}

/* Responsive */
@media (max-width: 1024px) {
    .controls-grid, .specs-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-content h1 {
        font-size: 2em;
    }
    
    .readings-grid, .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .control-buttons, .alert-controls {
        flex-direction: column;
    }
}