/* ═══════════════════════════════════════════════════════════════
   PrimeX Cloud Admin Portal — Styles
   Theme: Dark industrial with electric accents
   ═══════════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2234;
    --bg-card-hover: #1e2a40;
    --bg-surface: #0f1623;
    --border: #1e293b;
    --border-light: #334155;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --green: #22c55e;
    --green-bg: rgba(34, 197, 94, 0.1);
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.1);
    --amber: #f59e0b;
    --amber-bg: rgba(245, 158, 11, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --font: 'DM Sans', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ─── Login ─────────────────────────────────────────────────── */

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at top, #111827 0%, #0a0e17 70%);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
}

.login-header { text-align: center; margin-bottom: 2rem; }
.login-logo { font-size: 2.5rem; margin-bottom: 0.5rem; }
.login-header h1 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; }
.login-subtitle { color: var(--text-muted); font-size: 0.875rem; margin-top: 0.25rem; }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
}
.form-group input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9375rem;
    transition: border-color 0.15s;
}
.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input::placeholder { color: var(--text-muted); }

.error-message {
    background: var(--red-bg);
    border: 1px solid rgba(239,68,68,0.3);
    color: var(--red);
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.login-footer { text-align: center; margin-top: 1.5rem; }
.login-secure { color: var(--text-muted); font-size: 0.75rem; }

/* ─── Buttons ───────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: #2563eb; }
.btn-full { width: 100%; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; }
.btn-sm { padding: 0.25rem 0.625rem; font-size: 0.8125rem; }

.btn-success { background: var(--green); color: #fff; }
.btn-success:hover:not(:disabled) { background: #16a34a; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #dc2626; }
.btn-outline { background: transparent; border-color: var(--border-light); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--text-secondary); color: var(--text-primary); }
.btn-outline-danger { background: transparent; border-color: rgba(239,68,68,0.3); color: var(--red); }
.btn-outline-danger:hover { background: var(--red-bg); }
.btn-outline-success { background: transparent; border-color: rgba(34,197,94,0.3); color: var(--green); }
.btn-outline-success:hover { background: var(--green-bg); }
.btn-ghost { background: transparent; color: var(--text-muted); border: none; }
.btn-ghost:hover { color: var(--text-primary); }

/* ─── App Layout ────────────────────────────────────────────── */

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

.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 10;
}

.sidebar-brand {
    padding: 1.25rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
}
.brand-icon { font-size: 1.5rem; }
.brand-text { font-weight: 600; font-size: 1.0625rem; letter-spacing: -0.02em; }

.sidebar-nav { flex: 1; padding: 0.75rem 0.5rem; }
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 0.75rem;
    border-radius: var(--radius);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.15s;
    margin-bottom: 0.125rem;
}
.nav-item:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); font-weight: 500; }
.nav-icon { font-size: 1.125rem; }

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.admin-info { display: flex; flex-direction: column; }
.admin-name { font-size: 0.875rem; font-weight: 500; }
.admin-role { font-size: 0.75rem; color: var(--text-muted); text-transform: capitalize; }
.btn-logout {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.15s;
}
.btn-logout:hover { border-color: var(--red); color: var(--red); }

.main-content {
    flex: 1;
    margin-left: 240px;
    padding: 2rem;
    max-width: 1200px;
}

/* ─── Stats Row ─────────────────────────────────────────────── */

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
}
.stat-value { font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; }
.stat-label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 0.125rem; }

.stat-online .stat-value { color: var(--green); }
.stat-offline .stat-value { color: var(--red); }
.stat-pending .stat-value { color: var(--amber); }

.stat-indicator {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.pulse-green { background: var(--green); animation: pulse 2s infinite; }
.pulse-amber { background: var(--amber); animation: pulse 1.5s infinite; }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

/* ─── MQTT Status ───────────────────────────────────────────── */

.mqtt-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    margin-bottom: 1.5rem;
}
.mqtt-status.connected { background: var(--green-bg); color: var(--green); }
.mqtt-status.disconnected { background: var(--red-bg); color: var(--red); }
.mqtt-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ─── Section Headers ───────────────────────────────────────── */

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}
.section-header h2 { font-size: 1.25rem; font-weight: 600; }
.section-count { font-size: 0.8125rem; color: var(--text-muted); }

/* ─── Module Cards Grid ─────────────────────────────────────── */

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.module-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}
.module-card:hover { background: var(--bg-card-hover); border-color: var(--border-light); transform: translateY(-1px); }
.module-card.online { border-left: 3px solid var(--green); }
.module-card.offline { border-left: 3px solid var(--red); opacity: 0.75; }

.module-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}
.module-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.module-status-dot.green { background: var(--green); }
.module-status-dot.red { background: var(--red); }
.module-id { font-family: var(--mono); font-size: 0.75rem; color: var(--text-muted); }

.module-card-name {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.module-card-info { display: flex; flex-direction: column; gap: 0.25rem; }
.info-row { display: flex; justify-content: space-between; font-size: 0.8125rem; }
.info-label { color: var(--text-muted); }
.info-value { color: var(--text-secondary); }
.text-green { color: var(--green) !important; }
.text-red { color: var(--red) !important; }

/* ─── Empty State ───────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 0.5rem; }

/* ─── Module Detail ─────────────────────────────────────────── */

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.back-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8125rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}
.back-link:hover { color: var(--accent); }

.module-header h1 { font-size: 1.5rem; font-weight: 700; }
.module-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}
.meta-sep { color: var(--text-muted); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }

code, .small-code {
    font-family: var(--mono);
    font-size: 0.8125rem;
    background: var(--bg-surface);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
}

/* ─── Alert ─────────────────────────────────────────────────── */

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}
.alert-amber { background: var(--amber-bg); border: 1px solid rgba(245,158,11,0.2); color: var(--amber); }

/* ─── Data Table ────────────────────────────────────────────── */

.users-table-wrapper, .logs-wrapper {
    overflow-x: auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.data-table thead { background: var(--bg-surface); }
.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border);
}
.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }

.empty-row { text-align: center; color: var(--text-muted); padding: 2rem 1rem !important; }
.actions-cell { white-space: nowrap; display: flex; gap: 0.375rem; }

.user-row-pending td { background: rgba(245,158,11,0.03); }

/* ─── Logs ──────────────────────────────────────────────────── */

.log-time { font-family: var(--mono); font-size: 0.8125rem; white-space: nowrap; }
.log-event {
    display: inline-block;
    padding: 0.0625rem 0.375rem;
    border-radius: 4px;
    font-size: 0.8125rem;
    font-weight: 500;
}
.log-event-trigger { background: var(--accent-glow); color: var(--accent); }
.log-event-connect { background: var(--green-bg); color: var(--green); }
.log-event-disconnect { background: var(--red-bg); color: var(--red); }

.log-result-success, .log-result-ok, .log-result-sent { color: var(--green); }
.log-result-blocked, .log-result-unauthorized { color: var(--red); }
.log-result-pending { color: var(--amber); }

/* ─── Responsive ────────────────────────────────────────────── */

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; padding: 1rem; }
    .module-header { flex-direction: column; gap: 1rem; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .modules-grid { grid-template-columns: 1fr; }
}