/* public/css/style.css */

:root {
    --bg-dark: #121418;
    --panel-bg: #1e222a;
    --panel-border: #2e3440;
    --text-main: #eceff4;
    --text-muted: #8892b0;
    --accent-red: #e53e3e;
    --accent-green: #38a169;
    --accent-blue: #3182ce;
    --accent-blue-hover: #2b6cb0;
    --badge-tx: #2c5282;
    --badge-rx: #276749;
    --radius: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
    padding-bottom: 40px;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--panel-border);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-area h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.live-indicator {
    color: var(--accent-red);
    font-weight: 700;
    font-size: 0.85rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.4; }
    100% { opacity: 1; }
}

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

/* Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 24px;
    padding: 24px 32px;
    max-width: 1600px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Panels */
.panel {
    background-color: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 24px;
}

.panel h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--text-main);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.count-badge {
    background: var(--panel-border);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.section-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.divider {
    border: none;
    border-top: 1px solid var(--panel-border);
    margin: 20px 0;
}

/* Form Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

input[type="text"], select {
    background-color: var(--bg-dark);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    outline: none;
    width: 100%;
}

input[type="text"]:focus, select:focus {
    border-color: var(--accent-blue);
}

/* Channels Styling */
.channel-section h3 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    color: var(--text-muted);
}

.channel-card {
    background-color: var(--bg-dark);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
}

.channel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    color: #fff;
}

.tx-badge { background-color: var(--badge-tx); }
.rx-badge { background-color: var(--badge-rx); }

.label-input {
    flex: 1;
}

.device-select-wrapper label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

/* Buttons */
button {
    cursor: pointer;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
    padding: 12px 20px;
}

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

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--panel-border);
    color: var(--text-muted);
    padding: 6px 14px;
}

.btn-secondary:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

.full-width {
    width: 100%;
    margin-top: 10px;
}

/* Node Cards Matrix Grid */
.nodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.node-card {
    background-color: var(--bg-dark);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.node-card h3 {
    font-size: 1rem;
    margin-bottom: 12px;
}

.channel-preview {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    background: var(--panel-bg);
    padding: 8px 12px;
    border-radius: 6px;
}

.btn-connect {
    background-color: var(--accent-green);
    color: #fff;
    padding: 10px;
    width: 100%;
}

.btn-connect.connected {
    background-color: var(--accent-red);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}