:root {
    color-scheme: light;
    --ink: #17202a;
    --muted: #6f7b87;
    --line: #dce3e9;
    --surface: #ffffff;
    --canvas: #f4f7f8;
    --accent: #0f766e;
    --accent-dark: #0b5f59;
    --accent-soft: #dff3ef;
    --danger: #b42318;
    --danger-soft: #fef0ed;
    --success: #137333;
    --success-soft: #e8f5eb;
    --shadow: 0 24px 60px rgba(24, 45, 56, 0.12);
    font-family: "Pretendard", "Noto Sans KR", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background: var(--canvas);
}

button,
input {
    font: inherit;
}

.auth-page {
    display: grid;
    place-items: center;
    padding: 32px 20px;
    background:
        radial-gradient(circle at 15% 10%, rgba(15, 118, 110, 0.13), transparent 28%),
        radial-gradient(circle at 90% 88%, rgba(31, 76, 110, 0.10), transparent 30%),
        var(--canvas);
}

.auth-shell {
    width: min(100%, 440px);
}

.login-card {
    padding: 42px;
    border: 1px solid rgba(220, 227, 233, 0.92);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-size: 15px;
    font-weight: 750;
    letter-spacing: -0.01em;
}

.brand-mark {
    display: inline-grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 11px;
    color: #fff;
    background: var(--accent);
    box-shadow: 0 8px 18px rgba(15, 118, 110, 0.24);
}

.login-heading {
    margin: 38px 0 28px;
}

.eyebrow,
.panel-label {
    margin: 0 0 9px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
}

h1,
h2,
p {
    overflow-wrap: anywhere;
}

h1 {
    margin: 0;
    font-size: clamp(27px, 5vw, 34px);
    letter-spacing: -0.045em;
}

.login-heading > p:last-child,
.dashboard-heading p,
.panel > p:last-child,
.error-card > p {
    color: var(--muted);
    line-height: 1.65;
}

.login-heading > p:last-child {
    margin: 10px 0 0;
}

.login-form {
    display: grid;
    gap: 19px;
}

.field {
    display: grid;
    gap: 8px;
}

.field label {
    font-size: 14px;
    font-weight: 700;
}

.field input {
    width: 100%;
    height: 50px;
    padding: 0 15px;
    border: 1px solid var(--line);
    border-radius: 12px;
    outline: none;
    color: var(--ink);
    background: #fbfcfd;
    transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.field input:focus {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.11);
}

.button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 12px;
    padding: 0 18px;
    font-weight: 750;
    text-decoration: none;
    cursor: pointer;
    transition: background 150ms ease, transform 150ms ease;
}

.button:active {
    transform: translateY(1px);
}

.button--primary {
    color: #fff;
    background: var(--accent);
}

.button--primary:hover {
    background: var(--accent-dark);
}

.button--ghost {
    min-height: 38px;
    border: 1px solid var(--line);
    color: var(--ink);
    background: #fff;
}

.button--ghost:hover {
    background: var(--canvas);
}

.alert {
    margin: 0 0 20px;
    padding: 13px 14px;
    border-radius: 11px;
    font-size: 14px;
    line-height: 1.5;
}

.alert--error {
    border: 1px solid #f5c8c2;
    color: var(--danger);
    background: var(--danger-soft);
}

.alert--success {
    border: 1px solid #bde3c6;
    color: var(--success);
    background: var(--success-soft);
}

.security-note {
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.topbar {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0 max(24px, calc((100vw - 1120px) / 2));
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.94);
}

.brand--compact {
    color: inherit;
    text-decoration: none;
}

.brand--compact .brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 9px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.signed-in-user {
    color: var(--muted);
    font-size: 14px;
}

.dashboard-shell {
    width: min(1120px, calc(100% - 48px));
    margin: 0 auto;
    padding: 58px 0 80px;
}

.dashboard-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 34px;
}

.dashboard-heading p:last-child {
    margin: 10px 0 0;
}

.status-pill {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 8px;
    padding: 9px 13px;
    border: 1px solid #bde3c6;
    border-radius: 999px;
    color: var(--success);
    background: var(--success-soft);
    font-size: 13px;
    font-weight: 700;
}

.status-pill span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.panel {
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: 0 10px 28px rgba(29, 53, 65, 0.05);
}

.panel--highlight {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(145deg, #0f766e, #164e63);
}

.panel--highlight .panel-label,
.panel--highlight > p:last-child {
    color: rgba(255, 255, 255, 0.75);
}

.panel h2 {
    margin: 0;
    font-size: 23px;
    letter-spacing: -0.035em;
}

.panel .panel-value {
    font-size: 18px;
}

.panel > p:last-child {
    margin: 14px 0 0;
    font-size: 13px;
}

.architecture-panel {
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) minmax(360px, 1.2fr);
    gap: 40px;
    margin-top: 18px;
}

.architecture-list {
    display: grid;
    gap: 12px;
}

.architecture-list span {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 14px;
}

.architecture-list strong {
    min-width: 82px;
    color: var(--ink);
}

.error-card h1 {
    margin-top: 28px;
}

.error-card .button {
    width: 100%;
    margin-top: 14px;
}

@media (max-width: 820px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .architecture-panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .login-card {
        padding: 30px 24px;
        border-radius: 19px;
    }

    .topbar {
        padding: 0 18px;
    }

    .signed-in-user,
    .brand--compact > span:last-child {
        display: none;
    }

    .dashboard-shell {
        width: min(100% - 32px, 1120px);
        padding-top: 40px;
    }

    .dashboard-heading {
        display: grid;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.topbar-primary,
.primary-nav,
.heading-actions {
    display: flex;
    align-items: center;
}

.topbar-primary {
    gap: 34px;
}

.primary-nav {
    gap: 6px;
}

.primary-nav a {
    padding: 9px 12px;
    border-radius: 9px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

.page-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 30px;
}

.page-heading h1 {
    margin-top: 2px;
}

.page-heading p:last-child {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.6;
}

.page-heading--compact {
    margin-bottom: 24px;
}

.breadcrumb {
    display: inline-block;
    margin-bottom: 24px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.breadcrumb:hover {
    color: var(--accent);
}

.heading-actions {
    flex: 0 0 auto;
    gap: 10px;
}

.site-title-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.analytics-card {
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: 0 10px 28px rgba(29, 53, 65, 0.045);
}

.card-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 24px;
}

.card-heading h2,
.data-management-card h2,
.settings-guide h2 {
    margin: 0;
    font-size: 20px;
    letter-spacing: -0.03em;
}

.card-heading p:last-child,
.data-management-card p,
.settings-guide p {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
}

.card-heading > a:not(.button) {
    color: var(--accent);
    font-size: 13px;
    font-weight: 750;
    text-decoration: none;
}

.metric-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.metric-card {
    min-width: 0;
    padding: 23px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
}

.metric-card p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.metric-card > strong {
    display: block;
    margin-top: 10px;
    font-size: 30px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.045em;
}

.metric-card > span,
.metric-card > small {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
}

.metric-card .metric-delta {
    margin-top: 13px;
    color: #315d86;
    font-weight: 750;
}

.metric-card .metric-delta--down {
    color: #8a6124;
}

.compact-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-bottom: 18px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
}

.compact-metrics > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 21px;
    border-right: 1px solid var(--line);
}

.compact-metrics > div:last-child {
    border-right: 0;
}

.compact-metrics span {
    color: var(--muted);
    font-size: 13px;
}

.compact-metrics strong {
    font-size: 20px;
    font-variant-numeric: tabular-nums;
}

.analytics-grid {
    display: grid;
    gap: 18px;
    margin-bottom: 18px;
}

.analytics-grid--wide {
    grid-template-columns: minmax(0, 1.75fr) minmax(300px, 0.8fr);
}

.analytics-grid--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sites-preview,
.recent-events-card,
.data-management-card,
.site-trend-card {
    margin-top: 18px;
}

.freshness,
.source-note {
    color: var(--muted);
    font-size: 11px;
}

.freshness {
    text-align: right;
}

.source-note {
    margin: 18px 0 0;
}

.line-chart {
    position: relative;
    min-height: 270px;
    padding: 0 36px 24px;
}

.line-chart--large {
    min-height: 300px;
}

.line-chart svg {
    display: block;
    width: 100%;
    height: 230px;
    overflow: visible;
}

.line-chart--large svg {
    height: 250px;
}

.chart-grid-line {
    stroke: #e7ecef;
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.chart-line {
    fill: none;
    stroke: var(--accent);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.axis-value {
    position: absolute;
    left: 0;
    color: var(--muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.axis-value--top {
    top: 2px;
}

.axis-value--bottom {
    bottom: 37px;
}

.chart-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    color: var(--muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.empty-note {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

.ranking-list,
.bar-list,
.device-list {
    display: grid;
    gap: 15px;
}

.ranking-row {
    display: grid;
    grid-template-columns: minmax(100px, 0.9fr) minmax(90px, 1fr) auto;
    align-items: center;
    gap: 12px;
    color: inherit;
    text-decoration: none;
}

.ranking-label {
    min-width: 0;
}

.ranking-label strong,
.ranking-label small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ranking-label strong {
    font-size: 13px;
}

.ranking-label small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 11px;
}

.ranking-value {
    min-width: 34px;
    text-align: right;
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

progress {
    appearance: none;
    -webkit-appearance: none;
    overflow: hidden;
    width: 100%;
    height: 8px;
    border: 0;
    border-radius: 999px;
    background: #e8edef;
}

progress::-webkit-progress-bar {
    border-radius: 999px;
    background: #e8edef;
}

progress::-webkit-progress-value {
    border-radius: 999px;
    background: var(--accent);
}

progress::-moz-progress-bar {
    border-radius: 999px;
    background: var(--accent);
}

.empty-state {
    padding: 50px 20px;
    color: var(--muted);
    text-align: center;
}

.empty-state h3 {
    margin: 0;
    color: var(--ink);
}

.empty-state p {
    margin: 10px 0 20px;
}

.compact-empty {
    padding: 28px 10px;
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 14px 12px;
    border-bottom: 1px solid #edf1f3;
    text-align: left;
    vertical-align: middle;
}

.data-table th {
    color: var(--muted);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.data-table tbody tr:last-child td {
    border-bottom: 0;
}

.data-table tbody tr:hover td {
    background: #fafcfc;
}

.data-table small,
.table-primary {
    display: block;
}

.data-table small {
    max-width: 360px;
    margin-top: 4px;
    overflow: hidden;
    color: var(--muted);
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-primary,
.table-action a {
    color: var(--ink);
    font-weight: 750;
    text-decoration: none;
}

.table-action a {
    color: var(--accent);
    font-size: 12px;
    white-space: nowrap;
}

.number-cell {
    text-align: right !important;
    font-variant-numeric: tabular-nums;
}

.status-badge,
.event-badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    white-space: nowrap;
}

.status-badge--active {
    color: var(--accent-dark);
    background: var(--accent-soft);
}

.status-badge--paused,
.event-badge {
    color: #5f6872;
    background: #e9edef;
}

.directory-toolbar {
    align-items: center;
}

.search-field input {
    width: min(300px, 42vw);
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 11px;
    outline: 0;
    background: #fbfcfd;
}

.search-field input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.1);
}

.settings-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.8fr);
    gap: 18px;
}

.settings-card {
    grid-row: span 2;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.field--full {
    grid-column: 1 / -1;
}

.field textarea,
.field select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 12px;
    outline: none;
    color: var(--ink);
    background: #fbfcfd;
}

.field textarea {
    min-height: 128px;
    padding: 13px 15px;
    resize: vertical;
}

.field select {
    height: 50px;
    padding: 0 13px;
}

.field textarea:focus,
.field select:focus {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.11);
}

.field small {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}

.check-list {
    display: grid;
    gap: 12px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    position: relative;
    padding-left: 22px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.5;
}

.check-list li::before {
    position: absolute;
    left: 0;
    color: var(--accent);
    content: "✓";
    font-weight: 900;
}

.form-note {
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.alert ul {
    margin: 8px 0 0;
    padding-left: 19px;
}

.tracking-install-card {
    margin-bottom: 18px;
    border-color: #bcd9d5;
}

pre {
    overflow-x: auto;
    margin: 0;
    padding: 16px;
    border: 1px solid #d8e2e4;
    border-radius: 12px;
    color: #dbeafe;
    background: #17242c;
    font: 12px/1.65 Consolas, "Courier New", monospace;
    white-space: pre-wrap;
    word-break: break-all;
}

code {
    font-family: Consolas, "Courier New", monospace;
}

.custom-event-help {
    margin-top: 15px;
}

.custom-event-help summary {
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 750;
    cursor: pointer;
}

.custom-event-help pre {
    margin-top: 12px;
}

.period-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 24px 0 15px;
}

.period-toolbar > span:first-child {
    margin-right: 6px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.period-toolbar a {
    padding: 7px 11px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 750;
    text-decoration: none;
}

.period-toolbar a.is-active {
    color: #fff;
    background: var(--accent);
}

.period-date {
    margin-left: auto;
    color: var(--muted);
    font-size: 11px;
}

.daily-bars {
    display: grid;
    gap: 13px;
}

.daily-bar-item {
    display: grid;
    grid-template-columns: 60px minmax(90px, 1fr) 42px;
    align-items: center;
    gap: 12px;
}

.daily-bar-item strong {
    text-align: right;
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.daily-bar-item small {
    color: var(--muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.bar-row {
    display: grid;
    grid-template-columns: minmax(110px, 1.3fr) minmax(70px, 1fr) auto;
    align-items: center;
    gap: 10px;
}

.bar-row > div {
    min-width: 0;
}

.bar-row strong,
.bar-row span:not(.bar-track) {
    display: block;
}

.bar-row strong {
    overflow: hidden;
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-row div > span {
    margin-top: 3px;
    color: var(--muted);
    font-size: 10px;
}

.bar-row b {
    min-width: 28px;
    text-align: right;
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.device-row {
    display: grid;
    grid-template-columns: 78px auto;
    align-items: center;
    gap: 7px 12px;
    font-size: 12px;
}

.device-row strong {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.device-row progress {
    grid-column: 1 / -1;
}

.event-path {
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.data-management-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 20px;
}

.button--danger {
    border: 1px solid #efc4bf;
    color: var(--danger);
    background: var(--danger-soft);
    white-space: nowrap;
}

.button--danger:hover {
    background: #fbe1dd;
}

@media (max-width: 980px) {
    .metric-strip,
    .compact-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .compact-metrics > div:nth-child(2) {
        border-right: 0;
    }

    .compact-metrics > div:nth-child(-n + 2) {
        border-bottom: 1px solid var(--line);
    }

    .analytics-grid--wide,
    .analytics-grid--three,
    .settings-layout {
        grid-template-columns: 1fr;
    }

    .settings-card {
        grid-row: auto;
    }
}

@media (max-width: 720px) {
    .topbar {
        min-height: 66px;
    }

    .topbar-primary {
        gap: 10px;
    }

    .primary-nav a {
        padding: 8px;
        font-size: 12px;
    }

    .signed-in-user {
        display: none;
    }

    .page-heading,
    .site-detail-heading,
    .data-management-card {
        display: grid;
    }

    .heading-actions {
        justify-content: flex-start;
    }

    .card-heading {
        display: grid;
    }

    .freshness {
        text-align: left;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .field--full {
        grid-column: auto;
    }

    .search-field input {
        width: 100%;
    }
}

@media (max-width: 520px) {
    .brand--compact > span:last-child {
        display: none;
    }

    .topbar {
        padding: 0 12px;
    }

    .topbar-actions {
        gap: 7px;
    }

    .topbar-actions .button {
        min-height: 34px;
        padding: 0 11px;
        font-size: 12px;
    }

    .dashboard-shell {
        width: min(100% - 24px, 1120px);
    }

    .metric-strip,
    .compact-metrics {
        grid-template-columns: 1fr;
    }

    .compact-metrics > div {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .compact-metrics > div:last-child {
        border-bottom: 0;
    }

    .analytics-card,
    .metric-card {
        padding: 20px;
    }

    .period-toolbar {
        flex-wrap: wrap;
    }

    .period-date {
        width: 100%;
        margin: 8px 0 0;
    }

    .ranking-row {
        grid-template-columns: minmax(90px, 1fr) 70px auto;
    }

    .bar-row {
        grid-template-columns: minmax(90px, 1fr) 60px auto;
    }
}