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

:root {
    --bg: #0d1117;
    --card: #161b22;
    --text: #e6edf3;
    --muted: #8b949e;
    --border: #30363d;
    --green: #2ea043;
    --red: #da3633;
    --yellow: #d29922;
    --blue: #388bfd;
    --orange: #db6d28;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding-bottom: 70px;
}

header {
    background: #1a1a2e;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 { font-size: 1.3rem; }

.conn-ok { color: var(--green); font-size: 1.5rem; }
.conn-ok::before { content: "\25CF"; }
.conn-err { color: var(--red); font-size: 1.5rem; }
.conn-err::before { content: "\25CF"; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin: 12px;
}

.card-inner {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
}

.hidden { display: none !important; }

/* Status Card */
#status-card { text-align: center; padding: 24px 16px; }

#system-status {
    font-size: 1.8rem;
    font-weight: 700;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.status-armed { background: var(--green); color: white; }
.status-armed_night { background: var(--blue); color: white; }
.status-disarmed { background: var(--border); color: var(--muted); }

.status-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--border);
    color: var(--text);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover { opacity: 0.9; }
.btn-arm { background: var(--green); color: white; }
.btn-night { background: var(--blue); color: white; }
.btn-disarm { background: var(--red); color: white; }
.btn-pair { background: var(--orange); color: white; width: 100%; margin-bottom: 12px; }
.btn-logout { background: var(--red); color: white; }

/* Download Button */
.btn-download {
    background: var(--card);
    border: 1px solid var(--border);
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.btn-download:hover {
    border-color: var(--green);
    background: rgba(46, 160, 67, 0.1);
}

/* Alarm Banner */
#alarm-banner {
    background: var(--red);
    color: white;
    text-align: center;
    padding: 20px;
    animation: alarm-flash 1s infinite;
}

@keyframes alarm-flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.alarm-text { font-size: 2rem; font-weight: 700; }

/* Sensor Zones */
.zone-card { margin: 12px; }
.zone-card h3 {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 4px 8px;
}

.sensor-row {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.sensor-row:first-of-type { border-radius: 8px 8px 0 0; }
.sensor-row:last-of-type { border-radius: 0 0 8px 8px; }
.sensor-row:only-of-type { border-radius: 8px; }
.sensor-row + .sensor-row { border-top: none; }

.sensor-name { font-weight: 500; }
.sensor-status { font-size: 0.9rem; font-weight: 600; }
.sensor-status.closed { color: var(--green); }
.sensor-status.closed::before { content: "\25CF "; }
.sensor-status.open { color: var(--red); }
.sensor-status.open::before { content: "\25CF "; }
.sensor-status.motion { color: var(--yellow); }
.sensor-status.motion::before { content: "\25CF "; }
.sensor-status.quiet { color: var(--muted); }
.sensor-status.quiet::before { content: "\25CB "; }

.sensor-battery {
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 2px;
}

.sensor-battery::before { content: "\1F50B "; }
.sensor-battery.bat-low { color: var(--red); font-weight: 600; }

/* Events */
.event-row {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    gap: 8px;
}

.event-row:last-child { border-bottom: none; }
.event-time { color: var(--muted); font-size: 0.8rem; white-space: nowrap; }
.event-alarm { color: var(--red); font-weight: 600; }

.event-type-alarm { color: var(--red); font-weight: 700; font-size: 0.75rem; }
.event-type-contact { color: var(--blue); font-weight: 600; font-size: 0.75rem; }
.event-type-motion { color: var(--yellow); font-weight: 600; font-size: 0.75rem; }
.event-type-camera { color: var(--orange); font-weight: 600; font-size: 0.75rem; }

/* Navigation */
nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1a1a2e;
    display: flex;
    justify-content: space-around;
    padding: 12px 0;
    border-top: 1px solid var(--border);
    z-index: 100;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 6px 12px;
    cursor: pointer;
}

.nav-btn.active { color: var(--blue); font-weight: 600; }

/* Modal */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal-content {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    width: 90%;
    max-width: 360px;
}

.modal-content h3 { margin-bottom: 16px; }
.modal-content label { display: block; color: var(--muted); margin: 8px 0 4px; font-size: 0.85rem; }

.modal-content input,
.modal-content select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 8px;
}

.modal-actions { display: flex; gap: 8px; margin-top: 16px; }
.modal-actions .btn { flex: 1; }

hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

/* Toggle Switch */
.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--border);
    border-radius: 28px;
    transition: 0.3s;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked + .toggle-slider { background: var(--green); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(22px); }

/* Setup Steps */
.setup-steps {
    margin: 8px 0;
    padding-left: 20px;
    font-size: 0.9rem;
    color: var(--muted);
}

.setup-steps li { margin: 4px 0; }

.setup-steps code {
    background: var(--card);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--green);
}

.store-links {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

/* Pairing animation */
.pairing-animation {
    text-align: center;
    color: var(--orange);
    padding: 12px;
    animation: pulse 1.5s infinite;
}

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

/* Sensor Admin */
.sensor-admin-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.sensor-admin-row:last-child { border-bottom: none; }

.sensor-edit-btn {
    background: var(--border);
    border: none;
    color: var(--text);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-logo { text-align: center; margin-bottom: 24px; }
.auth-logo h1 { margin-top: 12px; font-size: 1.8rem; }
.auth-subtitle { color: var(--muted); margin-top: 4px; }

.auth-card { width: 100%; max-width: 380px; }

.auth-card input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 10px;
}

.auth-card input:focus { outline: none; border-color: var(--green); }

.btn-full { width: 100%; text-align: center; display: block; }

.auth-links { text-align: center; margin-top: 16px; }
.auth-links a { color: var(--blue); text-decoration: none; font-size: 0.9rem; }

.auth-footer {
    color: var(--muted);
    font-size: 0.8rem;
    margin-top: 24px;
    text-align: center;
}

.error-msg {
    background: rgba(218, 54, 51, 0.15);
    color: var(--red);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    text-align: center;
}

.success-msg {
    background: rgba(46, 160, 67, 0.15);
    color: var(--green);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    text-align: center;
}

/* Admin Panel */
.header-link {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9rem;
}

.admin-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

.admin-row:last-child { border-bottom: none; }

.admin-actions { display: flex; gap: 6px; flex-shrink: 0; }

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.muted { color: var(--muted); font-size: 0.85rem; }

/* Header extended */
.header-left { display: flex; align-items: center; gap: 8px; }
.header-right { display: flex; align-items: center; gap: 10px; }
.header-icon { border-radius: 4px; }

.offline-badge {
    background: var(--yellow);
    color: #000;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
}

#settings-panel input,
#settings-panel select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 8px;
}

#user-info { font-size: 0.85rem; margin: 4px 0 12px; }

/* Downloads section */
#downloads-panel h3 { margin-bottom: 8px; }
#downloads-panel .muted { margin-bottom: 8px; display: block; }