/* MetaMender landing page. The four theme colours are the add-on's own
   (resources/lib/ui/theme.py, MM.Accent and MM.ButtonFocus);
   tests/test_landing_page.py keeps them in step. */
:root {
    --bg: #0d1015;
    --surface: #171b22;
    --panel: #1a1d23;
    --row: #222731;
    --text: #f1f3f5;
    --muted: #a8aeb8;
    --faint: #7d8592;
    --border: #262b35;
    --bad: #e07a7a;
    --good: #a9d79b;
    --max: 1100px;
    --radius: 10px;

    --accent-golden-hour: #f5a623;
    --focus-golden-hour: #d4912a;
    --accent-ultraviolet: #a78bfa;
    --focus-ultraviolet: #7c3aed;
    --accent-ember: #f87171;
    --focus-ember: #ef4444;
    --accent-nightfall: #60a5fa;
    --focus-nightfall: #3b82f6;

    --accent: var(--accent-golden-hour);
    --accent-strong: var(--focus-golden-hour);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Noto Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.55;
}

a {
    color: var(--accent);
}

img {
    max-width: 100%;
    display: block;
}

.section-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 16px;
}

h2 {
    text-align: center;
    font-size: 1.7rem;
    margin: 0 0 1.4rem;
}

.section-desc {
    text-align: center;
    color: var(--muted);
    max-width: 640px;
    margin: -0.6rem auto 1.6rem;
}

.note {
    text-align: center;
    color: var(--faint);
    font-size: 0.85rem;
    margin-top: 1rem;
}

.center {
    text-align: center;
}

/* Header */

.site-header {
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(13, 16, 21, 0.92);
    backdrop-filter: blur(8px);
    z-index: 10;
}

.header-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.wordmark img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-links a.nav-support {
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-links a.nav-github {
    display: inline-flex;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: 0.7rem 1.3rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

.btn-primary {
    background: var(--accent);
    color: #0d1117;
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-secondary {
    background: var(--row);
    color: var(--text);
}

.btn-secondary:hover {
    background: var(--border);
}

/* Hero */

.hero {
    padding: 4rem 0 3rem;
    text-align: center;
}

.hero h1 {
    font-size: clamp(1.9rem, 4.5vw, 3rem);
    line-height: 1.15;
    margin: 0 auto 1rem;
    max-width: 820px;
}

.lead {
    color: var(--muted);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 1.8rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 2.4rem;
}

.hero-screenshot img {
    margin: 0 auto;
    max-width: 900px;
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

/* Wins */

.wins {
    padding: 3.5rem 0;
    background: var(--surface);
}

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

.win {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.3rem;
    display: flex;
    flex-direction: column;
}

.win h3 {
    color: var(--accent);
    margin: 0 0 0.5rem;
}

.win p {
    color: var(--muted);
    margin: 0 0 1rem;
    flex: 1;
}

.before-after {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    font-size: 0.9rem;
}

.before-after div {
    background: var(--bg);
    border-radius: 8px;
    padding: 0.6rem;
}

.ba-label {
    display: block;
    color: var(--faint);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.ba-bad {
    color: var(--bad);
}

.ba-good {
    color: var(--good);
}

/* The live Details window */

.demo {
    padding: 3.5rem 0;
}

.details {
    --mm: var(--accent-golden-hour);
    --mm-focus: var(--focus-golden-hour);
    --mm-text: #0d1117;
    max-width: 860px;
    margin: 0 auto;
    background: var(--panel);
    border: 2px solid var(--mm);
    border-radius: 16px;
    padding: 18px 22px 22px;
    transition: border-color 0.25s;
}

.details[data-theme="ultraviolet"] {
    --mm: var(--accent-ultraviolet);
    --mm-focus: var(--focus-ultraviolet);
    --mm-text: #ffffff;
}

.details[data-theme="ember"] {
    --mm: var(--accent-ember);
    --mm-focus: var(--focus-ember);
    --mm-text: #ffffff;
}

.details[data-theme="nightfall"] {
    --mm: var(--accent-nightfall);
    --mm-focus: var(--focus-nightfall);
    --mm-text: #ffffff;
}

.details-head {
    display: flex;
    gap: 12px;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, transparent, var(--mm), transparent) 1;
    margin-bottom: 14px;
}

.badge {
    color: var(--mm);
    display: inline-flex;
}

.details-title {
    color: var(--mm);
    font-size: 1.2rem;
    font-weight: 700;
}

.details-sub {
    color: var(--muted);
    font-size: 0.85rem;
}

.details-body {
    display: grid;
    grid-template-columns: 36% 1fr;
    gap: 16px;
}

.details-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.details-list .group {
    color: var(--mm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 10px 0 4px;
}

.details-list .group:first-child {
    margin-top: 0;
}

.details-list [role="option"] {
    display: flex;
    justify-content: space-between;
    background: var(--row);
    border-radius: 7px;
    padding: 6px 10px;
    margin-bottom: 4px;
    cursor: pointer;
    font-size: 0.92rem;
    outline: none;
}

.details-list .hint {
    color: var(--faint);
    font-size: 0.8rem;
}

.details-list [aria-selected="true"] {
    background: var(--mm-focus);
    color: var(--mm-text);
    font-weight: 700;
}

.details-list [aria-selected="true"] .hint {
    color: var(--mm-text);
}

.details-list [role="option"]:focus-visible {
    box-shadow: 0 0 0 2px var(--mm);
}

.details-pane {
    background: var(--row);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: 0.92rem;
    min-height: 300px;
}

.pane-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.pane-value {
    background: var(--panel);
    border-radius: 8px;
    padding: 8px 10px;
    margin-bottom: 12px;
}

.pane-lines {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 4px 12px;
    margin: 0;
}

.pane-lines dt {
    color: var(--faint);
}

.pane-lines dd {
    margin: 0;
}

.swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 18px;
}

.swatch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--row);
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 14px;
    font: inherit;
    font-size: 0.88rem;
    cursor: pointer;
}

.swatch span {
    width: 14px;
    height: 14px;
    border-radius: 50%;
}

.swatch[data-theme="golden-hour"] span { background: var(--accent-golden-hour); }
.swatch[data-theme="ultraviolet"] span { background: var(--accent-ultraviolet); }
.swatch[data-theme="ember"] span { background: var(--accent-ember); }
.swatch[data-theme="nightfall"] span { background: var(--accent-nightfall); }

.swatch[aria-checked="true"] {
    color: var(--text);
    border-color: var(--muted);
}

/* Install */

.install {
    padding: 3.5rem 0 4rem;
    background: var(--surface);
}

.steps {
    list-style: none;
    padding: 0;
    margin: 0 0 1.8rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.steps li {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    color: var(--muted);
    font-size: 0.92rem;
}

.steps strong {
    display: block;
    color: var(--text);
    margin-bottom: 4px;
}

.step-n {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--accent);
    color: #0d1117;
    font-weight: 700;
    margin-bottom: 8px;
}

/* Footer */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.4rem 0;
    font-size: 0.88rem;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    color: var(--faint);
}

.footer-inner a {
    color: var(--muted);
    text-decoration: none;
}

.footer-inner a:hover {
    color: var(--text);
}

/* Narrow screens */

@media (max-width: 860px) {
    .wins-grid,
    .steps {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .wins-grid,
    .steps,
    .details-body {
        grid-template-columns: 1fr;
    }

    .details-pane {
        min-height: 0;
    }

    /* The text links fold away; the footer carries them on a phone. */
    .nav-links a:not(.nav-github) {
        display: none;
    }

    .hero {
        padding-top: 2.5rem;
    }
}