:root {
    color-scheme: light dark;
    --bg: #eef3f8;
    --bg-accent: rgba(49, 130, 206, 0.16);
    --bg-accent-2: rgba(15, 118, 110, 0.14);
    --surface: rgba(255, 255, 255, 0.8);
    --surface-strong: rgba(255, 255, 255, 0.94);
    --surface-soft: rgba(241, 245, 249, 0.78);
    --text: #0f172a;
    --muted: #5b6b81;
    --line: rgba(148, 163, 184, 0.28);
    --brand: #0f766e;
    --brand-strong: #115e59;
    --brand-soft: rgba(15, 118, 110, 0.12);
    --accent: #2563eb;
    --shadow: 0 20px 55px rgba(15, 23, 42, 0.12);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #07111f;
        --bg-accent: rgba(37, 99, 235, 0.18);
        --bg-accent-2: rgba(20, 184, 166, 0.12);
        --surface: rgba(15, 23, 42, 0.78);
        --surface-strong: rgba(15, 23, 42, 0.94);
        --surface-soft: rgba(30, 41, 59, 0.76);
        --text: #e5eef9;
        --muted: #9aa9be;
        --line: rgba(148, 163, 184, 0.22);
        --brand: #2dd4bf;
        --brand-strong: #5eead4;
        --brand-soft: rgba(45, 212, 191, 0.12);
        --accent: #60a5fa;
        --shadow: 0 24px 70px rgba(2, 6, 23, 0.4);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "IBM Plex Serif", Georgia, "Times New Roman", serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, var(--bg-accent), transparent 28%),
        radial-gradient(circle at top right, var(--bg-accent-2), transparent 25%),
        linear-gradient(180deg, color-mix(in srgb, var(--bg) 88%, white 12%) 0%, var(--bg) 100%);
}

a,
button,
input,
select {
    font: inherit;
}

button,
input,
select {
    transition:
        border-color 160ms ease,
        background-color 160ms ease,
        color 160ms ease,
        box-shadow 160ms ease,
        transform 160ms ease;
}

a {
    color: inherit;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.page-shell {
    width: min(1240px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 4rem;
}

.top-nav {
    display: inline-flex;
    gap: 0.4rem;
    padding: 0.4rem;
    margin-bottom: 1.25rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.top-nav a {
    padding: 0.65rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
}

.top-nav a:hover {
    color: var(--text);
    background: var(--surface-soft);
}

.top-nav a[aria-current="page"] {
    color: white;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.95fr);
    gap: 1.25rem;
    align-items: stretch;
    margin-bottom: 1.4rem;
}

.hero-panel,
.filter-panel,
.panel,
.summary-card {
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.hero-panel {
    padding: 1.4rem;
    border-radius: var(--radius-xl);
}

.hero-copy {
    display: grid;
    align-content: start;
}

.eyebrow {
    margin: 0 0 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--brand);
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 1rem;
    max-width: 12ch;
    font-size: clamp(2.4rem, 5vw, 4.9rem);
    line-height: 0.94;
    letter-spacing: -0.04em;
}

h2 {
    font-size: clamp(1.35rem, 2vw, 1.8rem);
    letter-spacing: -0.03em;
}

h3 {
    font-size: 1.08rem;
}

.lede {
    max-width: 60ch;
    font-size: 1.02rem;
    line-height: 1.72;
    color: var(--muted);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 0.9rem;
}

.objective-note {
    margin: 1rem 0 0;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface-soft);
    color: var(--muted);
    line-height: 1.6;
}

.objective-note strong {
    color: var(--text);
}

.hero-badge {
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 0.88rem;
}

.filter-panel {
    display: grid;
    gap: 0.95rem;
    padding: 1.25rem;
    border-radius: var(--radius-xl);
}

.filter-panel-header h2 {
    margin-bottom: 0;
}

.filter-panel label,
.snapshot-metrics div {
    display: grid;
    gap: 0.38rem;
}

.filter-panel span,
.summary-label,
.snapshot-metrics span {
    color: var(--muted);
    font-size: 0.82rem;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 0.85rem 0.95rem;
    background: var(--surface-strong);
    color: var(--text);
}

input::placeholder {
    color: color-mix(in srgb, var(--muted) 82%, transparent);
}

input:hover,
select:hover {
    border-color: color-mix(in srgb, var(--brand) 28%, var(--line));
}

.filter-actions {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    padding-top: 0.2rem;
}

button {
    border: 0;
    border-radius: 999px;
    padding: 0.82rem 1.12rem;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    color: white;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 18%, transparent);
}

button:hover {
    transform: translateY(-1px);
}

.filter-actions a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
}

.filter-actions a:hover {
    color: var(--text);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.summary-card {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
}

.summary-card strong {
    display: block;
    margin-top: 0.45rem;
    font-size: 2rem;
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.summary-copy {
    font-size: 1.08rem;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.summary-note,
.panel-copy {
    margin: 0.55rem 0 0;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.55;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(320px, 1fr);
    gap: 1rem;
}

.panel {
    padding: 1.2rem;
    border-radius: var(--radius-lg);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: end;
    margin-bottom: 1rem;
}

.panel-header h2 {
    margin-bottom: 0;
}

.table-wrap {
    overflow-x: auto;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--surface-strong);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    padding: 0.86rem 0.7rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.94rem;
}

thead th {
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--surface-strong) 92%, var(--bg) 8%);
    color: var(--muted);
    font-weight: 700;
    z-index: 1;
}

tbody tr:hover {
    background: color-mix(in srgb, var(--brand-soft) 55%, transparent);
}

.device-name {
    max-width: 16ch;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.snapshot-list {
    display: grid;
    gap: 0.9rem;
}

.snapshot-card {
    padding: 1rem;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: var(--surface-soft);
}

.snapshot-topline {
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.9rem;
}

.snapshot-topline h3 {
    margin-bottom: 0;
}

.snapshot-topline span {
    color: var(--muted);
    font-size: 0.82rem;
}

.snapshot-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
}

.snapshot-metrics strong {
    font-size: 1.12rem;
    letter-spacing: -0.03em;
}

.live-hero h1 {
    max-width: 13ch;
}

.live-content-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.9fr);
}

.live-chart-panel {
    overflow: hidden;
}

.chart-shell {
    display: grid;
    gap: 0.9rem;
}

.history-chart {
    width: 100%;
    height: auto;
    display: block;
}

.chart-bg {
    fill: color-mix(in srgb, var(--surface-strong) 92%, transparent);
    stroke: var(--line);
}

.axis-line,
.grid-line {
    stroke: color-mix(in srgb, var(--muted) 26%, transparent);
    stroke-width: 1;
}

.grid-line {
    stroke-dasharray: 5 8;
}

.axis-label {
    fill: var(--muted);
    font-size: 11px;
}

.chart-status {
    margin: 0;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: right;
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem 1.2rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.chart-legend span {
    display: inline-flex;
    gap: 0.45rem;
    align-items: center;
}

.legend-swatch {
    width: 1.35rem;
    height: 0;
    border-top: 3px solid currentColor;
    border-radius: 999px;
}

.total-line {
    color: #14b8a6;
}

.personal-line {
    color: #f59e0b;
}

.mobiles-line {
    color: #60a5fa;
}

.laptops-line {
    color: #c084fc;
}

.wearables-line {
    color: #4ade80;
}

.live-detail-card {
    background: var(--surface-soft);
}

.empty-state {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

@media (max-width: 1080px) {
    .hero,
    .content-grid,
    .live-content-grid,
    .summary-grid {
        grid-template-columns: 1fr;
    }

    .panel-header {
        align-items: start;
        flex-direction: column;
    }

    h1 {
        max-width: none;
    }
}

@media (max-width: 680px) {
    .page-shell {
        width: min(100% - 1rem, 1240px);
        padding-top: 1rem;
    }

    .top-nav {
        display: grid;
        width: 100%;
        grid-template-columns: repeat(2, 1fr);
    }

    .top-nav a {
        text-align: center;
    }

    .filter-actions {
        flex-wrap: wrap;
    }

    .summary-card strong {
        font-size: 1.65rem;
    }

    .snapshot-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    th,
    td {
        font-size: 0.88rem;
    }
}