/* Base Styles - Reset and Typography */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* App Container - holds sidebar and main */
.app-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

/* App Body - sidebar + main columns */
.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Section Styles */
.section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Buttons */
.btn {
    padding: 0.4rem 0.8rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: var(--font-size-md);
}

.btn-action { background: var(--color-primary); color: #000; }

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-primary-text);
    border: none;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-primary);
}

.btn-danger {
    background: var(--color-error);
    color: #fff;
    border: none;
}

.btn-danger:hover:not(:disabled) {
    filter: brightness(0.95);
}

.toggle-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
    min-width: 100px;
}

.toggle-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.toggle-btn.on { background: linear-gradient(135deg, var(--color-success), #00cc6a); color: #000; }
.toggle-btn.off { background: linear-gradient(135deg, #555, #444); color: #fff; }

.quick-btn {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}

.quick-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.quick-btn.charge { background: linear-gradient(135deg, var(--color-success), #00cc6a); color: #000; }
.quick-btn.discharge { background: linear-gradient(135deg, var(--color-warning), #ccaa00); color: #000; }
.quick-btn.stop { background: linear-gradient(135deg, #666, #555); color: #fff; }
.quick-btn.set { background: linear-gradient(135deg, var(--color-modbus), #1976D2); color: #fff; }

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-round);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.running { background: rgba(var(--color-success-rgb), 0.2); color: var(--color-success); }
.status-badge.stopped { background: rgba(100, 100, 100, 0.2); color: var(--text-secondary); }
.status-badge.idle { background: rgba(100, 100, 100, 0.2); color: var(--text-secondary); }
.status-badge.paused { background: rgba(var(--color-warning-rgb), 0.2); color: var(--color-warning); }
.status-badge.charge_loop { background: rgba(var(--color-success-rgb), 0.2); color: var(--color-success); }

/* Protocol Badges */
.protocol-badge {
    font-size: var(--font-size-xs);
    padding: 0.1rem 0.3rem;
    border-radius: 2px;
    font-weight: 600;
    text-transform: uppercase;
}
.protocol-badge.modbus { background: var(--color-modbus); color: #fff; }
.protocol-badge.mqtt { background: var(--color-mqtt); color: #fff; }
.protocol-badge.ocpp { background: var(--color-ocpp); color: #000; }
.protocol-badge.load { background: var(--color-warning); color: #000; }

/* Status Indicators */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.status-dot.idle { background: var(--text-muted); }
.status-dot.charging { background: var(--color-success); }
.status-dot.connected { background: var(--color-primary); }
.status-dot.available { background: var(--color-success); }
.status-dot.occupied { background: var(--color-warning); }

/* Copy Button */
.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    margin-left: 6px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    color: var(--color-primary);
    background: var(--color-primary-hover);
}

.copy-btn.copied {
    color: var(--color-success);
}

/* Simulated Time Display */
.sim-time {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    margin-left: auto;
    padding: 0.3rem 0.6rem;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
}

.empty-state h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}