:root {
    --bg: #f7f9fc;
    --panel: #ffffff;
    --panel-alt: #f1f4f9;
    --panel-strong: #e8eef7;
    --border: #d7dfea;
    --border-strong: #b6c6dd;
    --muted: #5f6b7a;
    --text: #1f2933;
    --accent: #2ea6a3;
    --accent-2: #2f7cf7;
    --warn: #d89b13;
    --danger: #d64545;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow: 0 12px 30px rgba(17, 38, 63, 0.12);
    --shadow-soft: 0 10px 24px rgba(17, 38, 63, 0.08);
    --glow: 0 0 0 2px rgba(47, 124, 247, 0.16);
}

* {
    box-sizing: border-box;
}

body {
    font-family: "Manrope", "Segoe UI", Tahoma, sans-serif;
    background: radial-gradient(circle at 18% 16%, rgba(47, 124, 247, 0.08), transparent 32%),
                radial-gradient(circle at 82% -8%, rgba(46, 166, 163, 0.08), transparent 26%),
                linear-gradient(180deg, #f9fbff 0%, #f3f6fb 100%);
    color: var(--text);
    margin: 0;
    padding: 32px;
    max-width: 1320px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

h1, h2, h3 {
    margin: 0 0 12px 0;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #111827;
}

p {
    color: var(--muted);
    margin: 0 0 12px 0;
}

a {
    color: var(--accent);
    font-weight: 650;
    text-decoration: underline;
    text-decoration-color: rgba(46, 166, 163, 0.35);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

a:hover {
    color: var(--accent-2);
    text-decoration-color: rgba(47, 124, 247, 0.4);
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 14px;
    margin: 18px 0 22px 0;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

nav a {
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    background: #f7f9fc;
    border: 1px solid transparent;
    color: var(--text);
    letter-spacing: 0.01em;
    transition: all 0.18s ease;
}

nav a:hover {
    border-color: var(--accent);
    background: rgba(46, 166, 163, 0.12);
    color: var(--accent);
    box-shadow: 0 6px 16px rgba(17, 38, 63, 0.08);
}

nav a.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(46, 166, 163, 0.16);
}

.topbar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    margin-bottom: 18px;
}

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

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    display: grid;
    place-items: center;
    color: #ffffff;
    font-weight: 800;
    letter-spacing: 0.02em;
    box-shadow: 0 12px 24px rgba(47, 124, 247, 0.22);
}

.brand-name {
    font-weight: 800;
    font-size: 18px;
    color: #111827;
}

.brand-tagline {
    font-size: 13px;
    color: var(--muted);
    margin-top: 2px;
}

.topnav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    flex-wrap: wrap;
}

.top-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.page {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 20px 28px 20px;
    box-shadow: var(--shadow);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
    color: var(--muted);
    margin: 0 0 6px 0;
}

.subhead {
    margin: 4px 0 0 0;
    color: var(--muted);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin: 14px 0 18px 0;
}

.stat-card {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-soft);
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    margin-top: 6px;
    color: #0f172a;
}

.stat-detail {
    margin-top: 4px;
    color: var(--muted);
    font-size: 13px;
}

.section {
    margin: 18px 0;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.panel {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-soft);
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.pill-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill {
    padding: 6px 12px;
    border-radius: 999px;
    background: #f1f4f9;
    border: 1px solid var(--border);
    color: var(--muted);
    font-weight: 650;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

.pill.active {
    background: rgba(47, 124, 247, 0.12);
    color: var(--accent-2);
    border-color: rgba(47, 124, 247, 0.35);
}

.table-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
    color: var(--muted);
}

.muted-link {
    color: var(--muted);
    text-decoration: underline;
}

form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 16px 0 10px 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 18px 0 10px 0;
}

.section-header h2 {
    margin: 0;
}

.card-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 8px 0 18px 0;
}

.device-card {
    padding: 16px 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}

.device-row {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.device-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.device-row .label {
    min-width: 120px;
    max-width: 160px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 11px;
    font-weight: 750;
    flex-shrink: 0;
}

.device-row .value {
    flex: 1;
    color: var(--text);
    line-height: 1.45;
    word-break: break-word;
}

input, select, button, textarea {
    padding: 11px 13px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    font-size: 14px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input::placeholder, textarea::placeholder {
    color: #8895a7;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--border-strong);
    box-shadow: var(--glow);
    outline: none;
    background: var(--panel-alt);
}

button {
    background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
    border: none;
    color: #ffffff;
    font-weight: 800;
    letter-spacing: 0.01em;
    cursor: pointer;
    box-shadow: 0 12px 26px rgba(17, 38, 63, 0.18);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(17, 38, 63, 0.22);
}

button:active {
    transform: translateY(0);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    border: 1px solid transparent;
    min-width: 0;
    text-transform: none;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 7px;
}

.btn-ghost {
    background: #f7f9fc;
    color: var(--text);
    box-shadow: none;
    border-color: var(--border);
}

.btn-ghost:hover {
    border-color: var(--accent);
    background: rgba(46, 166, 163, 0.12);
    color: var(--accent);
}

.action-cell {
    white-space: nowrap;
    text-align: right;
}

.action-cell form {
    display: inline;
}

.action-cell .btn {
    margin-left: 4px;
}

.table-wrapper {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin: 14px 0 26px 0;
}

th, td {
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}

th {
    background: var(--panel-strong);
    letter-spacing: 0.03em;
    font-size: 12px;
    text-transform: uppercase;
    color: #42526b;
}

tr:nth-child(even) td {
    background: #f9fbff;
}

tr:hover td {
    background: #eef3fb;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 750;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.badge.success {
    background: rgba(46, 166, 163, 0.12);
    color: var(--accent);
    border-color: rgba(46, 166, 163, 0.35);
}

.badge.muted {
    background: #f1f4f9;
    color: var(--muted);
    border-color: #e4e9f1;
}

.badge.warn {
    background: rgba(216, 155, 19, 0.14);
    color: var(--warn);
    border-color: rgba(216, 155, 19, 0.34);
}

.badge.danger {
    background: rgba(214, 69, 69, 0.14);
    color: var(--danger);
    border-color: rgba(214, 69, 69, 0.34);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin: 16px 0;
}

.card {
    padding: 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

code, pre {
    background: #f1f4f9;
    color: #22324c;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    display: inline-block;
}

@media (max-width: 768px) {
    body {
        padding: 18px;
    }
    nav {
        gap: 8px;
    }
    .table-wrapper {
        overflow-x: auto;
    }
    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .split {
        grid-template-columns: 1fr;
    }
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.badge-active {
    background: #e6f4ea;
    color: #1e7e34;
    border: 1px solid #b7e1c3;
}

.badge-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.badge-inactive {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.notification-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: 0 2px 6px rgba(238, 90, 111, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.inactive-row {
    background: #fafafa;
    opacity: 0.7;
}

.inactive-row:hover {
    opacity: 1;
}