:root {
    --bg: #f7f3ea;
    --bg-accent: #f0e4d2;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-strong: #ffffff;
    --primary: #0f766e;
    --primary-dark: #114b5f;
    --accent: #f97316;
    --text: #1d2939;
    --muted: #526071;
    --border: rgba(17, 75, 95, 0.12);
    --shadow: 0 18px 50px rgba(17, 75, 95, 0.12);
    --radius-xl: 28px;
    --radius-lg: 20px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Manrope", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(249, 115, 22, 0.18), transparent 28%),
        radial-gradient(circle at bottom right, rgba(15, 118, 110, 0.16), transparent 32%),
        linear-gradient(160deg, var(--bg) 0%, #fbfaf7 52%, var(--bg-accent) 100%);
}

.app-shell {
    min-height: 100vh;
}

.app-navbar {
    background: rgba(17, 75, 95, 0.92);
    backdrop-filter: blur(16px);
    box-shadow: 0 12px 30px rgba(17, 75, 95, 0.16);
}

.navbar-brand,
.nav-link,
.app-navbar .btn-outline-light {
    color: #fff;
}

.navbar-brand {
    font-family: "Newsreader", serif;
    font-size: 1.5rem;
    letter-spacing: 0.02em;
}

.nav-link:hover,
.nav-link:focus,
.navbar-brand:hover,
.navbar-brand:focus {
    color: #fde68a;
}

.hero-card,
.panel-card,
.metric-card,
.login-card,
.login-copy {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero-card,
.panel-card,
.metric-card,
.login-card {
    background: var(--surface);
    backdrop-filter: blur(20px);
}

.hero-card {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 1.5rem;
    padding: 2rem;
    align-items: center;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
    flex-wrap: wrap;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.7rem;
    background: rgba(249, 115, 22, 0.14);
    color: var(--primary-dark);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.display-title {
    margin: 0.85rem 0;
    font-family: "Newsreader", serif;
    font-size: clamp(2.4rem, 4vw, 4.5rem);
    line-height: 0.96;
}

.display-title.small {
    font-size: clamp(2rem, 3.8vw, 3.2rem);
}

.lead-copy,
.section-subtitle,
.report-stats,
.reading-item span,
.reading-item small {
    color: var(--muted);
}

.lead-copy {
    max-width: 62ch;
    font-size: 1.02rem;
}

.lead-copy.slim {
    max-width: 52ch;
}

.quick-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: end;
    align-items: center;
    flex-wrap: wrap;
}

.metric-card,
.panel-card,
.form-card,
.login-card,
.login-copy {
    padding: 1.5rem;
}

.metric-card {
    height: 100%;
}

.metric-card-detail strong {
    font-size: 1.55rem;
}

.metric-card span,
.metric-card small {
    display: block;
}

.metric-card span {
    color: var(--muted);
    font-weight: 700;
}

.metric-card strong {
    display: block;
    font-size: 2rem;
    line-height: 1;
    margin: 0.5rem 0;
    color: var(--primary-dark);
}

.section-title {
    font-size: 1.35rem;
    font-weight: 800;
}

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

.reading-item {
    padding: 0.95rem 1rem;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(17, 75, 95, 0.08);
}

.reading-item strong,
.reading-badge {
    color: var(--primary-dark);
}

.reading-badge {
    background: rgba(15, 118, 110, 0.12);
    font-weight: 700;
    padding: 0.55rem 0.75rem;
    border-radius: 999px;
}

.chart-canvas {
    width: 100%;
    min-height: 320px;
    max-height: 420px;
}

.compact-chart {
    min-height: 260px;
}

.chart-legend {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
    margin-top: 0.85rem;
    color: var(--muted);
    font-size: 0.9rem;
}

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

.chart-legend-swatch {
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 999px;
    flex: 0 0 auto;
}

.table-card,
.report-table {
    overflow: hidden;
}

.table thead th {
    background: rgba(17, 75, 95, 0.07);
    color: var(--primary-dark);
    font-weight: 800;
    border-bottom: 0;
}

.table > :not(caption) > * > * {
    padding: 0.95rem 0.8rem;
}

.form-shell {
    padding-top: 1rem;
}

.form-card {
    max-width: 760px;
}

.measurement-picker {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.measurement-option {
    min-height: 3.4rem;
    padding: 0.9rem 1rem;
    border-radius: 18px;
    border: 1px solid rgba(17, 75, 95, 0.14);
    background: rgba(255, 255, 255, 0.78);
    color: var(--primary-dark);
    font-weight: 800;
    text-align: center;
    transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.measurement-option:hover,
.measurement-option:focus {
    border-color: rgba(15, 118, 110, 0.45);
    background: rgba(15, 118, 110, 0.08);
}

.measurement-option.active {
    border-color: rgba(15, 118, 110, 0.55);
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.14), rgba(17, 75, 95, 0.1));
    box-shadow: inset 0 0 0 1px rgba(15, 118, 110, 0.08);
}

.empty-state {
    display: grid;
    place-items: center;
    min-height: 320px;
    text-align: center;
}

.report-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.95rem;
}

.monthly-reading-list {
    display: grid;
    gap: 0.65rem;
}

.monthly-reading-entry {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 0.7rem 0.85rem;
    border-radius: 14px;
    background: rgba(17, 75, 95, 0.04);
    border: 1px solid rgba(17, 75, 95, 0.08);
}

.monthly-reading-entry strong {
    color: var(--primary-dark);
    font-size: 0.94rem;
    flex: 0 0 auto;
}

.monthly-reading-summary {
    flex: 0 1 auto;
}

.monthly-reading-entry span,
.monthly-reading-entry small {
    color: var(--muted);
}

.monthly-reading-entry small {
    margin-left: auto;
    text-align: right;
}

.compact-stats {
    row-gap: 0.35rem;
    font-size: 0.88rem;
}

.filter-chips {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-chip {
    padding: 0.6rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(17, 75, 95, 0.1);
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 700;
}

.filter-chip.active,
.filter-chip:hover,
.filter-chip:focus {
    background: rgba(15, 118, 110, 0.12);
    color: var(--primary-dark);
    border-color: rgba(15, 118, 110, 0.25);
}

.login-page {
    display: grid;
    place-items: center;
    padding: 1.25rem;
}

.login-layout {
    width: min(1100px, 100%);
    display: grid;
    grid-template-columns: 1.2fr 0.9fr;
    gap: 1.25rem;
    align-items: stretch;
}

.login-copy {
    background:
        linear-gradient(160deg, rgba(17, 75, 95, 0.9), rgba(15, 118, 110, 0.78)),
        linear-gradient(120deg, rgba(249, 115, 22, 0.18), transparent);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: end;
    min-height: 460px;
}

.login-copy .eyebrow {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    width: fit-content;
}

.login-copy h1 {
    font-family: "Newsreader", serif;
    font-size: clamp(2.4rem, 4vw, 4rem);
    line-height: 0.98;
    margin: 1rem 0;
}

.login-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #129990);
    border-color: transparent;
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, #0d615b, #0f766e);
}

.btn-install {
    background: rgba(249, 115, 22, 0.14);
    border: 1px solid rgba(249, 115, 22, 0.28);
    color: var(--primary-dark);
    font-weight: 700;
}

.btn-install:hover,
.btn-install:focus {
    background: rgba(249, 115, 22, 0.22);
    border-color: rgba(249, 115, 22, 0.4);
    color: var(--primary-dark);
}

.btn-outline-dark {
    border-color: rgba(17, 75, 95, 0.28);
    color: var(--primary-dark);
}

.btn-outline-dark:hover,
.btn-outline-dark:focus {
    background: rgba(17, 75, 95, 0.06);
    border-color: rgba(17, 75, 95, 0.36);
    color: var(--primary-dark);
}

.form-control,
.form-select {
    min-height: 3rem;
    border-radius: 14px;
    border-color: rgba(17, 75, 95, 0.14);
}

.form-control:focus,
.form-select:focus {
    border-color: rgba(15, 118, 110, 0.5);
    box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.14);
}

@media (max-width: 991.98px) {
    .hero-card,
    .login-layout {
        grid-template-columns: 1fr;
    }

    .quick-actions {
        justify-content: start;
    }
}

@media (max-width: 767.98px) {
    .hero-card,
    .panel-card,
    .metric-card,
    .login-card,
    .login-copy {
        border-radius: 22px;
    }

    .hero-card,
    .panel-card,
    .metric-card,
    .form-card,
    .login-card,
    .login-copy {
        padding: 1.15rem;
    }

    .chart-canvas {
        min-height: 240px;
    }
}