:root {
    --color-primary: #047857;
    --color-primary-hover: #065F46;
    --color-primary-accent: #10B981;
    --color-navy: #0F172A;
    --color-data-blue: #2563EB;
    --color-background: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-surface-secondary: #F1F5F9;
    --color-border: #E2E8F0;
    --color-border-strong: #CBD5E1;
    --color-text-primary: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-subtle: #94A3B8;
    --color-success: #16A34A;
    --color-warning: #D97706;
    --color-danger: #DC2626;
    --color-info: #2563EB;
    --color-cpc: #7C3AED;
    --color-score-good: #65A30D;
    --color-tint-emerald: #ECFDF5;
    --color-tint-blue: #EFF6FF;
    --color-footer-bg: #0F172A;
    --color-footer-heading: #F8FAFC;
    color-scheme: light
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text-primary);
    font-family: ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    line-height: 1.6
}

a {
    color: var(--color-primary);
    text-underline-offset: 4px
}

button, input, select {
    font: inherit
}

button, a, input, select, summary {
    touch-action: manipulation
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px
}

/* Matches Bootstrap 5.3's .container breakpoint table: fluid below 576px, then a fixed max-width per
   step rather than continuing to grow with the viewport. Gutter stays this site's own 24px (48px
   total), not Bootstrap's default — only the stepped-breakpoint behavior is what was asked for. */
.container {
    width: 100%;
    max-width: none;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px
}

@media(min-width:576px) {
    .container {
        max-width: 540px
    }
}

@media(min-width:768px) {
    .container {
        max-width: 720px
    }
}

@media(min-width:992px) {
    .container {
        max-width: 960px
    }
}

@media(min-width:1200px) {
    .container {
        max-width: 1140px
    }
}

@media(min-width:1400px) {
    .container {
        max-width: 1320px
    }
}

.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border)
}

.navigation {
    min-height: 88px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px
}

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

.brand {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 22px;
    font-weight: 750;
    letter-spacing: -.9px;
    text-decoration: none;
    color: var(--color-navy)
}

    .brand span:last-child {
        font-weight: 450
    }

.brand-logo {
    display: block;
    flex: none;
    width: 70px;
    height: 70px;
    margin-right: 7px
}

.navigation nav {
    display: flex;
    gap: 28px
}

    .navigation nav a {
        font-size: 14px;
        color: var(--color-text-secondary);
        text-decoration: none;
        font-weight: 550
    }

        .navigation nav a:hover {
            color: var(--color-primary)
        }

        .navigation nav a[aria-current="page"] {
            color: var(--color-primary);
            font-weight: 700
        }

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 22px;
    min-height: 48px;
    padding: 12px 22px;
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 7px;
    color: var(--color-surface);
    text-decoration: none;
    font-weight: 650;
    font-size: 14px;
    cursor: pointer
}

    .button:hover {
        background: var(--color-primary-hover)
    }

    .button.secondary {
        background: var(--color-surface);
        color: var(--color-navy);
        border-color: var(--color-border-strong)
    }

        .button.secondary:hover {
            background: var(--color-background)
        }

    .button.small {
        min-height: 42px;
        padding: 9px 17px
    }

.hero {
    text-align: center;
    padding: 74px 0 65px
}

.eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.6px;
    color: var(--color-primary)
}

.hero > .eyebrow {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 7px 12px;
    border-radius: 24px;
    letter-spacing: .4px;
    display: inline-flex;
    align-items: center;
    gap: 8px
}

.dot {
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%
}

h1 {
    font-size: clamp(38px,5vw,64px);
    line-height: 1.12;
    letter-spacing: -2.7px;
    font-weight: 750;
    margin: 25px 0 20px
}

    h1 em {
        font-style: normal;
        color: var(--color-primary)
    }

p {
    color: var(--color-text-secondary)
}

.hero p {
    font-size: 17px;
    line-height: 1.8
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 26px 0 21px
}

.trust {
    display: flex;
    justify-content: center;
    gap: 25px;
    font-size: 12px;
    color: var(--color-text-secondary)
}

h2 {
    font-size: 29px;
    line-height: 1.25;
    letter-spacing: -.9px;
    margin: 10px 0 20px
}

h3 {
    font-size: 22px;
    letter-spacing: -.5px;
    margin: 14px 0 7px
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px
}

.release-label, .tag {
    font-size: 11px;
    color: var(--color-text-secondary);
    background: var(--color-surface-secondary);
    padding: 4px 10px;
    border-radius: 5px
}

.tool-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px
}

.tool-card {
    padding: 30px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    border-top: 3px solid var(--color-primary)
}

    .tool-card.keyword {
        background: var(--color-tint-emerald)
    }

    .tool-card.audit {
        background: var(--color-tint-blue);
        border-top-color: var(--color-data-blue)
    }

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center
}

.tool-icon {
    color: var(--color-primary);
    font-size: 28px;
    line-height: 1
}

.audit .tool-icon {
    color: var(--color-data-blue)
}

.tool-card p {
    font-size: 14px;
    margin: 0 0 24px
}

.tool-card small {
    font-size: 11px;
    display: block;
    text-align: center;
    color: var(--color-text-secondary);
    margin-top: 14px
}

label {
    display: block;
    font-size: 12px;
    font-weight: 650;
    margin: 13px 0 6px
}

input, select {
    width: 100%;
    min-width: 0;
    min-height: 45px;
    padding: 10px 12px;
    border: 1px solid var(--color-border-strong);
    border-radius: 6px;
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-size: 13px
}

    input::placeholder {
        color: var(--color-text-muted)
    }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px
}

.full {
    width: 100%;
    margin-top: 23px;
    justify-content: space-between
}

.audit-outline {
    margin-top: 19px;
    padding: 17px 20px;
    background: var(--color-background);
    border-radius: 7px;
    font-size: 13px;
    min-height: 156px
}

    .audit-outline ul {
        padding-left: 20px;
        line-height: 2;
        color: var(--color-text-secondary)
    }

.principles {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 35px;
    padding: 75px 0;
    border-bottom: 1px solid var(--color-border)
}

    .principles p {
        font-size: 13px
    }

    .principles h3 {
        font-size: 16px;
        margin-top: 17px
    }

.step {
    display: inline-block;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 700;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 8px
}

.faq-section {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 60px;
    padding: 64px 0 80px
}

    .faq-section a {
        font-size: 13px
    }

details {
    border-bottom: 1px solid var(--color-border);
    padding: 0px 0
}

summary {
    font-size: 14px;
    font-weight: 600;
    cursor: pointer
}

details p {
    font-size: 14px
}

footer {
    background: var(--color-footer-bg);
    padding: 44px 0
}

    footer :focus-visible {
        outline-color: var(--color-primary-accent)
    }

    footer p {
        color: var(--color-text-subtle)
    }

    footer strong {
        color: var(--color-footer-heading)
    }

    footer .brand {
        color: var(--color-footer-heading)
    }

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 25px;
    font-size: 12px
}

    .footer-grid > div > a:not(.brand) {
        display: block;
        margin-top: 8px;
        color: var(--color-text-subtle)
    }

        .footer-grid > div > a:not(.brand):hover {
            color: var(--color-primary-accent)
        }

    .footer-grid small {
        color: var(--color-text-subtle)
    }

.footer-legal {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    font-size: 11px;
    line-height: 1.6
}

    .footer-legal a {
        color: var(--color-text-subtle)
    }

.skip-link {
    position: absolute;
    left: 20px;
    top: -80px;
    padding: 10px;
    background: var(--color-surface);
    z-index: 5
}

    .skip-link:focus {
        top: 10px
    }

.page-intro {
    padding: 48px 0 25px;
    max-width: 760px
}

    .page-intro h1 {
        font-size: 44px
    }

.breadcrumb {
    font-size: 12px;
    color: var(--color-text-secondary)
}

.content-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 30px;
    margin: 0 0 64px;
    max-width: 850px
}

.notice {
    border-left: 3px solid var(--color-data-blue);
    padding: 15px 20px;
    background: var(--color-background)
}

    .notice p {
        margin: 5px 0
    }

.content-panel h2 {
    font-size: 23px
}

.content-panel li {
    margin: 8px 0
}

@media(max-width:950px) {
    .navigation {
        flex-wrap: wrap;
        padding: 18px 0;
        gap: 16px
    }

        .navigation nav {
            order: 3;
            width: 100%;
            justify-content: center;
            gap: 25px
        }

    .principles {
        grid-template-columns: 1fr 1fr
    }
}

@media(max-width:600px) {
    .container {
        padding-left: 16px;
        padding-right: 16px
    }

    .navigation nav {
        gap: 12px;
        justify-content: space-between;
        flex-wrap: wrap
    }

        .navigation nav a {
            font-size: 11px
        }

    .brand {
        font-size: 19px
    }

    /* A 70px logo pushes the theme toggle and Start free onto a second header row on phones. */
    .brand-logo {
        width: 48px;
        height: 48px;
        margin-right: 3px
    }

    .hero {
        padding: 44px 0
    }

    h1 {
        letter-spacing: -1.7px
    }

    .hero p {
        font-size: 15px
    }

    .desktop-break {
        display: none
    }

    .hero-actions {
        flex-direction: column
    }

    .trust {
        gap: 10px;
        flex-wrap: wrap;
        font-size: 10px
    }

    .tool-grid, .faq-section, .principles {
        grid-template-columns: 1fr
    }

    .tool-card {
        padding: 22px
    }

    .section-heading {
        align-items: flex-start
    }

    .release-label {
        max-width: 95px
    }

    .section-heading h2 {
        font-size: 24px
    }

    .principles {
        padding: 45px 0;
        gap: 20px
    }

    .faq-section {
        gap: 16px;
        padding: 40px 0
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr
    }

        .footer-grid > div:first-child {
            grid-column: 1/-1
        }

    .page-intro h1 {
        font-size: 36px
    }

    .content-panel {
        padding: 20px;
        overflow-wrap: anywhere
    }
}

@media(prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto
    }
}

.wide {
    max-width: none
}

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

    .input-action input {
        flex: 1
    }

.help {
    font-size: 12px;
    color: var(--color-text-secondary)
}

textarea {
    width: 100%;
    font: inherit;
    border: 1px solid var(--color-border-strong);
    border-radius: 7px;
    padding: 12px;
    resize: vertical;
    background: var(--color-surface);
    color: var(--color-text-primary)
}

.validation {
    color: var(--color-danger)
}

.validation-summary-valid {
    display: none
}

.results {
    margin-bottom: 60px
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 16px
}

    .metric-grid article {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        padding: 22px;
        border-radius: 10px
    }

    .metric-grid span {
        font-size: 12px;
        display: block
    }

    .metric-grid strong {
        font-size: 26px;
        display: block;
        margin-top: 8px
    }

.report-nav {
    display: flex;
    gap: 9px;
    flex-wrap: wrap;
    margin: 20px 0
}

    .report-nav a {
        border: 1px solid var(--color-border);
        padding: 7px 12px;
        background: var(--color-surface);
        border-radius: 6px;
        text-decoration: none;
        font-size: 12px
    }

.table-wrap {
    max-width: 100%;
    overflow: auto;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface)
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    font-variant-numeric: tabular-nums
}

caption {
    text-align: left;
    padding: 12px;
    font-size: 12px;
    color: var(--color-text-secondary)
}

th {
    text-align: left;
    background: var(--color-background);
    font-weight: 650
}

td, th {
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
    overflow-wrap: anywhere;
    max-width: 500px;
    min-width: 95px
}

    td small {
        display: block;
        color: var(--color-text-secondary)
    }

tbody tr:hover {
    background: var(--color-background)
}

.preserve {
    white-space: pre-wrap;
    word-break: break-word
}

.report-section {
    margin-top: 36px
}

.status {
    font-size: 11px;
    font-weight: 700
}

    .status.passed {
        color: var(--color-success)
    }

    .status.error, .status.critical {
        color: var(--color-danger)
    }

    .status.warning {
        color: var(--color-text-primary);
        border-bottom: 3px solid var(--color-warning)
    }

    .status.notice {
        color: var(--color-info);
        border: 0;
        padding: 0
    }

.result-url {
    overflow-wrap: anywhere
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 12px;
    margin-bottom: 18px
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 20px
}

    .pagination span {
        font-size: 12px
    }

button:disabled {
    opacity: .55;
    cursor: not-allowed
}

meter {
    width: 100%;
    min-width: 90px;
    accent-color: var(--color-primary)
}

input[type=checkbox] {
    width: auto;
    min-height: 0
}

.tool-links {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 16px
}

    .tool-links a {
        display: block;
        border: 1px solid var(--color-border);
        border-radius: 10px;
        padding: 22px;
        text-decoration: none;
        background: var(--color-surface)
    }

@media(max-width:768px) {
    .metric-grid, .filter-grid, .tool-links {
        grid-template-columns: 1fr 1fr
    }

    .input-action {
        flex-direction: column;
        align-items: stretch
    }

    .pagination {
        gap: 8px
    }
}

@media(max-width:430px) {
    .metric-grid, .filter-grid, .tool-links {
        grid-template-columns: 1fr
    }
}

@media print {
    header, footer, form, .tabs, button, .filter-grid, .pagination {
        display: none !important
    }

    .container {
        max-width: none
    }

    .table-wrap {
        overflow: visible
    }

    table {
        font-size: 9px
    }

    .report-section {
        break-inside: avoid
    }

    body {
        background: white
    }

    tr[hidden] {
        display: table-row
    }

    .tab-panel[hidden] {
        display: block !important
    }

    details {
        border: 0
    }

        details > * {
            display: block !important
        }
}

/* Score gauge + category breakdown (website audit results) */
.band-excellent {
    stroke: var(--color-success);
    color: var(--color-success)
}

.band-good {
    stroke: var(--color-score-good);
    color: var(--color-score-good)
}

.band-warning {
    stroke: var(--color-warning);
    color: var(--color-warning)
}

.band-poor {
    stroke: var(--color-danger);
    color: var(--color-danger)
}

.score-panel {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 32px;
    padding: 22px 0 6px
}

.score-gauge {
    width: 132px;
    height: 132px;
    flex: none
}

    .score-gauge .gauge-track {
        fill: none;
        stroke: var(--color-surface-secondary);
        stroke-width: 10
    }

    .score-gauge .gauge-value {
        fill: none;
        stroke-width: 10;
        stroke-linecap: round;
        transition: stroke-dashoffset .4s ease
    }

    .score-gauge .gauge-number {
        font-size: 30px;
        font-weight: 750;
        fill: var(--color-text-primary);
        font-family: inherit
    }

    .score-gauge .gauge-suffix {
        font-size: 10px;
        fill: var(--color-text-secondary);
        font-family: inherit
    }

.score-summary {
    min-width: 220px;
    flex: 1
}

.score-tagline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-style: italic;
    font-weight: 650;
    color: var(--color-primary);
    font-size: 15px
}

    .score-tagline svg {
        width: 17px;
        height: 17px;
        flex: none
    }

.score-breakdown {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(170px,1fr));
    gap: 10px;
    margin-top: 16px
}

.score-breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    background: var(--color-surface);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    min-height: 0;
    text-align: left
}

    .score-breakdown-item:hover {
        border-color: var(--color-primary);
        background: var(--color-background)
    }

.score-breakdown .score-pill {
    font-weight: 750;
    font-size: 14px
}

/* Category "how to improve" modal, opened from a score-breakdown button */
.audit-modal {
    width: min(760px,90vw);
    max-height: 85vh;
    padding: 24px;
    border: 0;
    border-radius: 12px;
    background: var(--color-surface);
    color: var(--color-text-primary)
}

    .audit-modal::backdrop {
        background: rgba(0,0,0,.5)
    }

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

    .audit-modal-header h3 {
        margin: 0;
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px
    }

.audit-modal-x {
    flex: none;
    width: 32px;
    height: 32px;
    padding: 0;
    min-height: 0;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    font-size: 18px;
    line-height: 1;
    cursor: pointer
}

.audit-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px
}

/* Raw-data result sections (Technical tool pages; also reused as tab panels on the audit page) */
.report-section {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 20px;
    background: var(--color-surface);
    margin-top: 16px
}

    .report-section > h2, .report-section > h3 {
        margin: 0 0 14px;
        font-size: 17px
    }

/* Tabs (website audit results) */
.tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 20px 0 4px;
    padding-bottom: 4px
}

.tab {
    flex: none;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    padding: 9px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 650;
    cursor: pointer;
    white-space: nowrap
}

    .tab:hover {
        background: var(--color-background)
    }

    .tab[aria-selected="true"] {
        background: var(--color-primary);
        border-color: var(--color-primary);
        color: var(--color-surface)
    }

.tab-panel[hidden] {
    display: none
}

/* Keyword metric colors */
.metric-volume {
    color: var(--color-data-blue);
    font-weight: 650
}

.metric-cpc {
    color: var(--color-cpc);
    font-weight: 650
}

.metric-opportunity {
    color: var(--color-primary);
    font-weight: 750
}

.tag-competition.low {
    color: var(--color-success);
    font-weight: 650
}

.tag-competition.medium {
    color: var(--color-warning);
    font-weight: 650
}

.tag-competition.high {
    color: var(--color-danger);
    font-weight: 650
}

.growth-positive {
    color: var(--color-success);
    font-weight: 650
}

.growth-negative {
    color: var(--color-danger);
    font-weight: 650
}

@media(max-width:600px) {
    .score-panel {
        gap: 20px
    }

    .score-gauge {
        width: 104px;
        height: 104px
    }

        .score-gauge .gauge-number {
            font-size: 24px
        }
}

/* PageSpeed & Core Web Vitals: Lighthouse-style category gauges */
.score-gauge.small {
    width: 96px;
    height: 96px
}

    .score-gauge.small .gauge-number {
        font-size: 22px
    }

.gauge-number.unavailable {
    font-size: 16px;
    fill: var(--color-text-muted)
}

/* Quick-nav pills: click one to jump down to its full section (all sections stay on the page at
   once — nothing here hides or replaces another, matching PageSpeed Insights' own layout). */
.pagespeed-quicknav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
    justify-content: center
}

.pagespeed-navlink {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    text-decoration: none;
    color: inherit
}

    .pagespeed-navlink span {
        font-size: 13px;
        font-weight: 650;
        color: var(--color-text-secondary)
    }

    .pagespeed-navlink:hover span {
        color: var(--color-primary)
    }

/* One full, always-visible report section per Lighthouse category (Performance, Accessibility, ...) */
.pagespeed-category-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 2px solid var(--color-border);
    scroll-margin-top: 24px
}

    .pagespeed-category-section .preserve {
        white-space: unset;
    }

    .pagespeed-category-section:first-of-type {
        margin-top: 32px;
        padding-top: 0;
        border-top: 0
    }

.pagespeed-category-header {
    display: flex;
    align-items: center;
    gap: 20px
}

.pagespeed-category-band {
    margin: 4px 0 0;
    font-weight: 650
}

.pagespeed-category-section h4 {
    margin: 28px 0 0
}

    .pagespeed-category-section h4 small {
        display: block;
        font-weight: 400;
        font-size: 12px;
        color: var(--color-text-muted)
    }

/* Loading filmstrip, shown inside the Performance category */
.filmstrip {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 12px
}

.filmstrip-thumbs {
    display: flex;
    flex: 1 1 auto;
    flex-wrap: wrap;
    gap: 4px
}

    .filmstrip-thumbs figure {
        margin: 0;
        text-align: center
    }

    .filmstrip-thumbs img {
        width: 60px;
        height: auto;
        border: 1px solid var(--color-border);
        border-radius: 4px
    }

    .filmstrip-thumbs figcaption {
        font-size: 10px;
        color: var(--color-text-muted)
    }

.filmstrip-final {
    max-width: 180px;
    border: 1px solid var(--color-border);
    border-radius: 6px
}

/* Individual audit rows within a category (needs improvement / good to know). The whole list sits in
   one bordered box so it's clear where the group starts and ends; an opened row pops out as its own
   bordered card (matching PageSpeed Insights' own look) instead of blending into the flat list. */
.audit-list {
    list-style: none;
    margin: 12px 0 0;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden
}

    .audit-list li:last-child .audit-row-details:not([open]) .audit-row-summary {
        border-bottom: 0
    }

.audit-row-details[open] {
    margin: 0px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,.06);
    padding-top: 0px;
}

.audit-row-details .chevron {
    color: var(--color-text-muted);
    transition: transform .15s
}

.audit-row-details[open] .chevron {
    transform: rotate(180deg)
}

/* Header (always shaded, whether the row is open or not) and body (only shown when open) get distinct
   backgrounds, so an accordion item visually reads as header-then-content rather than one flat block. */
.audit-row-summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-surface-secondary);
    border-bottom: 1px solid var(--color-border);
    list-style: none
}

    .audit-row-summary::-webkit-details-marker {
        display: none
    }

.audit-row-body {
    padding: 14px 16px;
    background: var(--color-surface)
}

    .audit-row-body p {
        margin: 0 0 14px;
        font-size: 13px;
        color: var(--color-text-secondary)
    }

        .audit-row-body p:last-child {
            margin-bottom: 0
        }

.audit-row-title {
    flex: 1
}

.audit-icon {
    flex: none;
    width: 18px;
    font-size: 15px;
    line-height: 1.4;
    text-align: center
}

    .audit-icon.severity-high {
        color: var(--color-danger)
    }

    .audit-icon.severity-medium {
        color: var(--color-warning)
    }

    .audit-icon.severity-info {
        color: var(--color-text-muted)
    }

    .audit-icon.severity-passed {
        color: var(--color-success);
        margin-right: 6px
    }

.audit-savings.severity-high {
    color: var(--color-danger)
}

.audit-savings.severity-medium {
    color: var(--color-warning)
}

.audit-table {
    margin: 0
}

.audit-table-detail-row td {
    font-size: 12px;
    color: var(--color-text-secondary);
    background: var(--color-background)
}

.audit-table-detail-row code {
    display: block
}

.audit-table-thumb {
    display: block;
    max-width: 150px;
    max-height: 150px;
    margin-bottom: 6px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    object-fit: cover
}

.audit-table th.num, .audit-table td.num {
    text-align: right;
    white-space: nowrap
}

/* Narrative "list" detail (e.g. the network dependency tree) */
.audit-list-detail {
    margin: 0;
    font-size: 13px;
    color: var(--color-text-secondary)
}

.audit-list-section {
    margin-top: 16px
}

    .audit-list-section h5 {
        margin: 0 0 4px;
        font-size: 12px;
        font-weight: 650;
        text-transform: uppercase;
        color: var(--color-text-muted)
    }

.dep-node {
    padding: 4px 0;
    font-size: 13px;
    overflow-wrap: anywhere
}

    .dep-node.longest .dep-url, .dep-node.longest .dep-meta {
        color: var(--color-danger);
        font-weight: 650
    }

.dep-url {
    color: var(--color-text-primary)
}

.dep-meta {
    color: var(--color-text-muted);
    font-size: 12px
}

.dep-children {
    margin-left: 18px;
    padding-left: 10px;
    border-left: 1px solid var(--color-border)
}

.audit-group {
    margin-left: 8px;
    font-size: 11px;
    font-weight: 650;
    text-transform: uppercase;
    color: var(--color-text-muted)
}

.audit-sublist {
    margin-top: 16px;
    border-bottom: 0;
    padding: 0
}

    .audit-sublist summary {
        font-size: 13px
    }

.audit-list-flat {
    list-style: none;
    margin: 8px 0 0;
    padding: 0;
    font-size: 13px
}

    .audit-list-flat li {
        padding: 6px 0;
        border-bottom: 1px solid var(--color-border)
    }

        .audit-list-flat li:last-child {
            border-bottom: 0
        }

    .audit-list-flat p {
        margin: 4px 0 0;
        color: var(--color-text-secondary);
        font-size: 12px
    }

@media(max-width:430px) {
    .pagespeed-category-header {
        flex-direction: column;
        text-align: center
    }
}

/* Theme toggle */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    cursor: pointer
}

    .theme-toggle:hover {
        background: var(--color-background);
        color: var(--color-primary)
    }

    .theme-toggle svg {
        width: 18px;
        height: 18px
    }

    .theme-toggle .icon-moon {
        display: none
    }

:root[data-theme="dark"] .theme-toggle .icon-sun {
    display: none
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
    display: block
}

/* Dark theme: same tokens, brightened where a color sits directly on a dark surface. Follows system
   preference by default; an explicit choice (localStorage, set by the toggle) always wins. */
@media(prefers-color-scheme:dark) {
    :root:not([data-theme="light"]) {
        --color-primary: #10B981;
        --color-primary-hover: #34D399;
        --color-primary-accent: #6EE7B7;
        --color-navy: #F1F5F9;
        --color-data-blue: #60A5FA;
        --color-background: #0B1220;
        --color-surface: #111827;
        --color-surface-secondary: #1E293B;
        --color-border: #27324A;
        --color-border-strong: #3B4A66;
        --color-text-primary: #F1F5F9;
        --color-text-secondary: #CBD5E1;
        --color-text-muted: #94A3B8;
        --color-text-subtle: #94A3B8;
        --color-success: #22C55E;
        --color-warning: #F59E0B;
        --color-danger: #EF4444;
        --color-info: #60A5FA;
        --color-cpc: #A78BFA;
        --color-score-good: #A3E635;
        --color-tint-emerald: #0B2B22;
        --color-tint-blue: #0B1E33;
        --color-footer-bg: #020617;
        color-scheme: dark
    }
}

:root[data-theme="dark"] {
    --color-primary: #10B981;
    --color-primary-hover: #34D399;
    --color-primary-accent: #6EE7B7;
    --color-navy: #F1F5F9;
    --color-data-blue: #60A5FA;
    --color-background: #0B1220;
    --color-surface: #111827;
    --color-surface-secondary: #1E293B;
    --color-border: #27324A;
    --color-border-strong: #3B4A66;
    --color-text-primary: #F1F5F9;
    --color-text-secondary: #CBD5E1;
    --color-text-muted: #94A3B8;
    --color-text-subtle: #94A3B8;
    --color-success: #22C55E;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: #60A5FA;
    --color-cpc: #A78BFA;
    --color-score-good: #A3E635;
    --color-tint-emerald: #0B2B22;
    --color-tint-blue: #0B1E33;
    --color-footer-bg: #020617;
    color-scheme: dark
}

body, .header, footer, .tool-card, .content-panel, .report-section, .button, input, select, textarea {
    transition: background-color .15s ease,border-color .15s ease,color .15s ease
}

@media(prefers-reduced-motion:reduce) {
    * {
        transition: none !important;
        animation: none !important
    }
}

@media print {
    :root {
        --color-background: #F8FAFC !important;
        --color-surface: #FFFFFF !important;
        --color-text-primary: #0F172A !important;
        --color-text-secondary: #475569 !important;
        --color-border: #E2E8F0 !important;
        color-scheme: light !important
    }
}

/* Loading state for slower form submissions (audit, PageSpeed, keyword research) */
.loading-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    color: var(--color-text-secondary);
    font-size: 13px
}

.spinner {
    display: inline-block;
    flex: none;
    width: 18px;
    height: 18px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin .7s linear infinite
}

@keyframes spin {
    to {
        transform: rotate(360deg)
    }
}

@media(prefers-reduced-motion:reduce) {
    .spinner {
        border-top-color: var(--color-border);
        border-right-color: var(--color-primary)
    }
}

/* Meta Length Checker: side-by-side desktop layout — controls on the left, live preview + guidance
   on the right, so the preview updates without scrolling away from the fields being typed into. */
.meta-checker-layout {
    display: grid;
    grid-template-columns: 35% 65%;
    gap: 24px;
    align-items: start;
    margin-bottom: 64px
}

    .meta-checker-layout .content-panel {
        margin: 0
    }

.meta-checker-side {
    display: flex;
    flex-direction: column;
    gap: 24px
}

@media(max-width:900px) {
    .meta-checker-layout {
        grid-template-columns: 1fr
    }
}

.meta-meter {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 8px 0 16px
}

.meta-meter-label {
    flex: none;
    width: 56px;
    font-size: 12px;
    font-weight: 650;
    color: var(--color-text-secondary)
}

.meta-meter-bar {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--color-surface-secondary);
    overflow: hidden
}

.meta-meter-fill {
    height: 100%;
    width: 0;
    border-radius: 4px;
    background: var(--color-success);
    transition: width .15s ease, background-color .15s ease
}

    .meta-meter-fill.medium {
        background: var(--color-warning)
    }

    .meta-meter-fill.high {
        background: var(--color-danger)
    }

.meta-meter-stats {
    flex: none;
    display: flex;
    gap: 12px;
    font-size: 11px;
    color: var(--color-text-muted);
    min-width: 150px;
    justify-content: flex-end
}

.meta-length-warning {
    margin: -8px 0 16px;
    color: var(--color-danger);
    font-size: 12px;
    font-weight: 650;
}

.serp-preview-mobile-panel .serp-mock {
    max-width: 375px;
}

/* Google mobile snippets commonly have room for three description lines. This keeps the
   130-character preview visible before the checker adds its ellipsis at character 131. */
.serp-preview-mobile-panel .serp-mock-description {
    font-size: 13px;
    line-height: 1.55;
    -webkit-line-clamp: 3;
}

/* Google search-result preview mock. Colors and background are fixed (not theme tokens) because this
   is a preview of a real, always-light-background Google result, not part of this app's own UI. */
.serp-mock {
    max-width: 600px;
    padding: 16px;
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: arial,sans-serif
}

.serp-mock-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px
}

.serp-mock-favicon {
    flex: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #E8EAED;
    border: 1px solid #DADCE0;
    object-fit: contain
}

.serp-mock-headtext {
    min-width: 0
}

.serp-mock-site {
    font-size: 14px;
    font-weight: 500;
    color: #202124;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.serp-mock-url {
    font-size: 12px;
    line-height: 1.3;
    color: #4D5156;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.serp-mock-title {
    margin: 0;
    font-size: 19px;
    line-height: 1.3;
    font-weight: 400;
    color: #1A0DAB;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.serp-mock-description {
    margin: 3px 0 0;
    font-size: 13px;
    line-height: 1.55;
    color: #4D5156;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden
}

@media(max-width:480px) {
    .meta-meter {
        flex-wrap: wrap
    }

    .meta-meter-stats {
        min-width: 0;
        justify-content: flex-start;
        width: 100%
    }
}

/* Audit outline: preserve the source order while making heading levels visible. */
.audit-summary {
    display: grid;
    grid-template-columns: repeat(4,minmax(0,1fr));
    gap: 12px;
    margin: 20px 0;
}

    .audit-summary div {
        padding: 14px;
        border: 1px solid var(--color-border);
        border-radius: 10px;
        background: var(--color-surface);
    }

    .audit-summary dt {
        color: var(--color-text-secondary);
        font-size: 12px;
    }

    .audit-summary dd {
        margin: 4px 0 0;
        color: var(--color-text-primary);
        font-size: 22px;
        font-weight: 750;
    }

@media(max-width:700px) {
    .audit-summary {
        grid-template-columns: repeat(2,minmax(0,1fr));
    }
}

.heading-outline {
    list-style: none;
    padding: 0;
    overflow-wrap: anywhere;
}

    .heading-outline li {
        padding-block: .35rem;
    }

.heading-level-h2 {
    padding-inline-start: 1rem;
}

.heading-level-h3 {
    padding-inline-start: 2rem;
}

.heading-level-h4 {
    padding-inline-start: 3rem;
}

.heading-level-h5 {
    padding-inline-start: 4rem;
}

.heading-level-h6 {
    padding-inline-start: 5rem;
}

/* Shared result grids: controls wrap; only the table scrolls on narrow screens. */
.grid-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: end;
    margin: 16px 0 10px;
}

    .grid-toolbar > label {
        flex: 1 1 160px;
        min-width: 0;
    }

        .grid-toolbar > label:nth-child(2) {
            flex: 0 1 130px;
        }

    .grid-toolbar input, .grid-toolbar select {
        width: 100%;
        margin-bottom: 0;
    }

.grid-columns {
    flex: 0 1 220px;
    max-width: 100%;
}

    .grid-columns summary {
        cursor: pointer;
        padding: 12px;
    }

.grid-column-list {
    display: grid;
    gap: 8px;
    padding: 12px;
}

    .grid-column-list label {
        display: flex;
        align-items: center;
        gap: 8px;
        margin: 0;
        overflow-wrap: anywhere;
    }

    .grid-column-list input {
        width: 18px;
        height: 18px;
        margin: 0;
        flex-shrink: 0;
    }

.grid-export-help {
    flex-basis: 100%;
}

.grid-scroll {
    max-width: 100%;
    overflow-x: auto;
    min-width: 0;
}

.results-grid {
    width: 100%;
}

    .results-grid td {
        white-space: normal;
        overflow-wrap: anywhere;
        min-width: 90px;
        max-width: 540px;
    }

    .results-grid [hidden] {
        display: none !important;
    }

.grid-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

    .grid-pagination label {
        display: flex;
        align-items: center;
        gap: 8px;
        margin: 0;
    }

    .grid-pagination input {
        width: 76px;
        margin: 0;
    }

@media(max-width:600px) {
    .grid-toolbar > label, .grid-columns {
        flex-basis: 100%;
    }

    .grid-pagination [role=status] {
        order: -1;
        flex-basis: 100%;
    }

    .content-panel {
        min-width: 0;
    }
}

@media print {
    .grid-toolbar, .grid-pagination {
        display: none;
    }

    .results-grid tr[hidden] {
        display: table-row !important;
    }
}