:root {
    --bg-1: #f4eee2;
    --bg-2: #eef5ef;
    --surface: rgba(255, 252, 247, 0.88);
    --surface-strong: #fffdf8;
    --ink: #163229;
    --muted: #5d7167;
    --line: rgba(22, 50, 41, 0.12);
    --accent: #0f766e;
    --accent-deep: #0d5f58;
    --accent-soft: #d7efeb;
    --warning: #c76c37;
    --warning-soft: #f6e0d1;
    --danger: #ac3b33;
    --danger-soft: #f5d9d6;
    --shadow: 0 20px 45px rgba(22, 50, 41, 0.08);
    --radius: 24px;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--ink);
    font-family: "Source Sans 3", sans-serif;
    background:
            radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 28%),
            radial-gradient(circle at bottom right, rgba(199, 108, 55, 0.10), transparent 24%),
            linear-gradient(160deg, var(--bg-1), var(--bg-2));
}

h1,
h2,
.brand-mark {
    font-family: "Space Grotesk", sans-serif;
}

.app-shell {
    padding-bottom: 3rem;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    animation: rise 0.55s ease both;
}

.hero-panel {
    background:
            linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(255, 250, 242, 0.72)),
            linear-gradient(120deg, rgba(15, 118, 110, 0.10), rgba(199, 108, 55, 0.08));
}

.topbar {
    background: rgba(255, 252, 247, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}

.brand-mark {
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
}

.nav-link {
    color: var(--muted);
    font-weight: 600;
}

.nav-link.active,
.nav-link:hover {
    color: var(--ink);
}

.eyebrow {
    margin-bottom: 0.55rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.lead-copy {
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 60ch;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.25rem;
}

.section-head h2,
.hero-panel h1 {
    margin: 0;
}

.stat-card {
    min-height: 132px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.stat-card span {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.10em;
    font-size: 0.78rem;
    font-weight: 700;
}

.stat-card strong {
    font-size: clamp(2rem, 4vw, 2.6rem);
    line-height: 1;
}

.tracker-map {
    min-height: 420px;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(22, 50, 41, 0.10);
}

.device-stack {
    display: grid;
    gap: 0.9rem;
}

.device-stack-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    color: inherit;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.55);
    transition: transform 0.18s ease, border-color 0.18s ease;
}

.device-stack-item:hover {
    transform: translateY(-2px);
    border-color: rgba(15, 118, 110, 0.28);
}

.device-stack-item small {
    display: block;
    color: var(--muted);
}

.stack-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    justify-content: flex-end;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.badge-online,
.badge-ok {
    background: var(--accent-soft);
    color: var(--accent-deep);
}

.badge-warning {
    background: var(--warning-soft);
    color: var(--warning);
}

.badge-offline {
    background: var(--danger-soft);
    color: var(--danger);
}

.tracker-table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(15, 118, 110, 0.04);
    margin-bottom: 0;
}

.tracker-table thead th {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    border-bottom-color: var(--line);
}

.tracker-table tbody td {
    border-color: rgba(22, 50, 41, 0.06);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-deep));
    color: #fff;
    border: 0;
    border-radius: 999px;
    padding: 0.85rem 1.35rem;
    font-weight: 700;
}

.btn-accent:hover {
    color: #fff;
    opacity: 0.96;
}

.btn-command {
    border: 1px solid rgba(15, 118, 110, 0.18);
    background: rgba(255, 255, 255, 0.78);
    border-radius: 18px;
    padding: 0.9rem 1rem;
    font-weight: 700;
    color: var(--ink);
    min-height: 72px;
}

.btn-command:hover {
    background: var(--accent-soft);
    color: var(--accent-deep);
}

.command-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 0.75rem;
}

.info-list {
    display: grid;
    gap: 1rem;
}

.info-list span {
    display: block;
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.15rem;
}

.info-list strong {
    font-size: 1rem;
}

.mono {
    font-family: "Space Grotesk", monospace;
}

.status-band {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: flex-start;
}

.metric-chip {
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--line);
    font-size: 0.82rem;
    font-weight: 700;
}

.login-page {
    display: grid;
    place-items: center;
    padding: 2rem;
}

.login-wrap {
    width: min(100%, 520px);
}

.login-card {
    background: rgba(255, 252, 247, 0.92);
    border: 1px solid var(--line);
    border-radius: 30px;
    box-shadow: var(--shadow);
    padding: 2rem;
    animation: rise 0.55s ease both;
}

.login-card h1 {
    margin-bottom: 0.75rem;
}

.login-card .form-control {
    border-radius: 16px;
    border-color: rgba(22, 50, 41, 0.12);
    padding: 0.95rem 1rem;
}

.login-hint {
    margin-top: 1.25rem;
    color: var(--muted);
    font-size: 0.95rem;
}

@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 991.98px) {
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .tracker-map {
        min-height: 320px;
    }
}