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

:root {
    --bg: #0a0e1a;
    --bg-glow: radial-gradient(circle at 20% 20%, rgba(0,212,255,0.15), transparent 40%),
               radial-gradient(circle at 80% 80%, rgba(0,150,255,0.12), transparent 40%);
    --panel: rgba(255,255,255,0.05);
    --panel-border: rgba(255,255,255,0.1);
    --cyan: #22d3ee;
    --text: #e6e6e6;
    --text-dim: #9aa4b2;
    --ok: #34d399;
    --error: #f87171;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg) var(--bg-glow);
    background-attachment: fixed;
    color: var(--text);
    min-height: 100vh;
}

.app { display: flex; min-height: 100vh; }

.sidebar {
    width: 220px;
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--panel-border);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.1rem; margin-bottom: 32px; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }

nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav-item {
    color: var(--text-dim);
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 10px;
    transition: all .15s;
}
.nav-item:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.nav-item.active { background: rgba(34,211,238,0.12); color: var(--cyan); border: 1px solid rgba(34,211,238,0.3); }

.sidebar-footer { font-size: 0.75rem; color: var(--text-dim); border-top: 1px solid var(--panel-border); padding-top: 12px; }

.content { flex: 1; padding: 32px 40px; max-width: 900px; }
h1 { margin-bottom: 20px; font-size: 1.6rem; }
h2 { margin-bottom: 14px; font-size: 1.1rem; color: var(--cyan); }

.card {
    background: var(--panel);
    backdrop-filter: blur(14px);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

label { display: block; margin-bottom: 14px; font-size: 0.9rem; color: var(--text-dim); }
input[type=text], textarea, select {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    color: var(--text);
    font-size: 0.95rem;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--cyan); }

.checkbox-label { display: flex; align-items: center; gap: 8px; }
.checkbox-label input { width: auto; }

.btn-primary, .btn-secondary, .btn-danger {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 10px;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    margin-top: 6px;
}
.btn-primary { background: var(--cyan); color: #001019; font-weight: 600; }
.btn-secondary { background: rgba(255,255,255,0.08); color: var(--text); border: 1px solid var(--panel-border); }
.btn-danger { background: rgba(248,113,113,0.15); color: var(--error); border: 1px solid rgba(248,113,113,0.3); }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 20px; }
.alert-ok { background: rgba(52,211,153,0.12); border: 1px solid rgba(52,211,153,0.3); color: var(--ok); }
.alert-error { background: rgba(248,113,113,0.12); border: 1px solid rgba(248,113,113,0.3); color: var(--error); }

.device-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.device-card {
    background: var(--panel);
    backdrop-filter: blur(14px);
    border: 1px solid var(--panel-border);
    border-radius: 14px;
    padding: 16px;
}
.device-card-header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.status-dot.off { background: var(--text-dim); }
.device-type { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 12px; text-transform: capitalize; }
.device-actions { display: flex; gap: 8px; }

.log-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.log-table th { text-align: left; color: var(--text-dim); padding: 8px; border-bottom: 1px solid var(--panel-border); }
.log-table td { padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); }

.badge { padding: 3px 10px; border-radius: 20px; font-size: 0.8rem; }
.badge-ok { background: rgba(52,211,153,0.15); color: var(--ok); }
.badge-error { background: rgba(248,113,113,0.15); color: var(--error); }

.empty { color: var(--text-dim); font-style: italic; }

.field-group { display: none; }