:root {
    --bg: #0f1714;
    --bg-soft: #14201b;
    --card: #18241e;
    --card-2: #1d2c25;
    --border: #2a3b32;
    --text: #e8f0ec;
    --muted: #9bb3a8;
    --accent: #34d399;
    --accent-2: #22c55e;
    --accent-soft: rgba(52, 211, 153, 0.12);
    --danger: #f87171;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
    --radius: 18px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: radial-gradient(1200px 600px at 70% -10%, #16241d 0%, var(--bg) 55%);
    color: var(--text);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

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

.wrap {
    max-width: 920px;
    margin: 0 auto;
    padding: 48px 20px 80px;
}

/* Header */
/* Top bar with the product wordmark */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 44px;
}
.nav-link {
    font-size: 14px;
    color: var(--muted);
    text-decoration: none;
    white-space: nowrap;
}
.nav-link:hover { color: var(--accent); }
.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
    text-decoration: none;
}
.brand:hover { color: var(--text); }
.brand:hover .brand-name strong { color: var(--accent-2); }
.brand .brand-mark {
    display: block;
    color: var(--accent);
    flex: none;
}
.brand .brand-name { line-height: 1; }
.brand .brand-name strong { font-weight: 700; color: var(--accent); transition: color .15s ease; }

.hero { text-align: center; margin-bottom: 34px; }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid rgba(52, 211, 153, 0.25);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
}
.hero h1 {
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1.1;
    margin: 0 0 12px;
    letter-spacing: -0.02em;
}
.hero p { color: var(--muted); font-size: 17px; max-width: 680px; margin: 0 auto; }

/* Search box */
.search {
    display: flex;
    gap: 10px;
    background: var(--card);
    border: 1px solid var(--border);
    padding: 10px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: 28px;
}
.search input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 16px;
    padding: 12px 14px;
}
.search input::placeholder { color: #6f8a7e; }
.search button {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #06281c;
    border: none;
    font-weight: 700;
    font-size: 15px;
    padding: 0 24px;
    border-radius: 12px;
    cursor: pointer;
    transition: transform .12s ease, opacity .12s ease;
    white-space: nowrap;
}
.search button:hover { transform: translateY(-1px); }
.search button:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* Deep-render toggle */
.deep-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    cursor: pointer;
    user-select: none;
    color: var(--muted);
    font-size: 13.5px;
}
.deep-toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.deep-toggle .switch {
    position: relative;
    width: 38px; height: 21px;
    border-radius: 999px;
    background: var(--card-2);
    border: 1px solid var(--border);
    transition: background .15s ease, border-color .15s ease;
    flex: none;
}
.deep-toggle .switch::after {
    content: "";
    position: absolute;
    top: 2px; left: 2px;
    width: 15px; height: 15px;
    border-radius: 50%;
    background: #8aa39a;
    transition: transform .15s ease, background .15s ease;
}
.deep-toggle.on .switch { background: var(--accent-soft); border-color: rgba(52,211,153,0.45); }
.deep-toggle.on .switch::after { transform: translateX(17px); background: var(--accent); }
.deep-toggle.on .deep-label { color: var(--text); }
.deep-toggle .deep-label em { font-style: normal; color: #6f8a7e; }
.deep-toggle:hover .deep-label { color: var(--text); }

.error {
    margin-top: 16px;
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: #fecaca;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
}

/* Loading */
.loading { text-align: center; padding: 60px 0 20px; color: var(--muted); }
.spinner {
    width: 46px; height: 46px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    margin: 0 auto 18px;
    animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Results */
.results { margin-top: 36px; animation: rise .4s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.card h2 { margin: 0 0 4px; font-size: 18px; }
.card .sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

/* Verdict / hero result */
.verdict { display: grid; grid-template-columns: auto 1fr; gap: 26px; align-items: center; }
.grade {
    width: 130px; height: 130px;
    border-radius: 26px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    font-weight: 800;
    color: #042016;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.18);
}
.grade .letter { font-size: 56px; line-height: 1; }
.grade .label { font-size: 11px; text-transform: uppercase; letter-spacing: .12em; opacity: .8; margin-top: 4px; }

.verdict .headline { font-size: 15px; color: var(--muted); }
.verdict .grams { font-size: 40px; font-weight: 800; letter-spacing: -0.02em; margin: 2px 0; }
.verdict .grams small { font-size: 16px; color: var(--muted); font-weight: 500; }
.verdict .cleaner { color: var(--accent); font-weight: 600; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag {
    font-size: 12px; padding: 5px 11px; border-radius: 999px;
    background: var(--card-2); border: 1px solid var(--border); color: var(--muted);
}
.tag.green { color: var(--accent); border-color: rgba(52,211,153,0.35); background: var(--accent-soft); }
.tag.grey-host { color: #fbbf24; border-color: rgba(251,191,36,0.3); background: rgba(251,191,36,0.1); }
.tag.unknown-host { color: #cbd5cd; border-color: rgba(148,163,184,0.35); background: rgba(148,163,184,0.12); }
.tag.rendered { color: #60a5fa; border-color: rgba(96,165,250,0.35); background: rgba(96,165,250,0.12); }

/* Action buttons (share / re-analyse) */
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.btn {
    font-size: 13px; font-weight: 600;
    padding: 8px 16px; border-radius: 10px; cursor: pointer;
    background: var(--accent-soft); color: var(--accent);
    border: 1px solid rgba(52,211,153,0.3);
    transition: transform .12s ease, background .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* History & trend */
.spark { width: 100%; height: 54px; display: block; margin: 4px 0 18px; }
table.history td.size, table.history th.size { text-align: right; white-space: nowrap; }
table.history tr.current td { color: var(--text); }
.grade-pill {
    display: inline-block; min-width: 26px; text-align: center;
    font-weight: 800; font-size: 12px; color: #06281c;
    padding: 2px 8px; border-radius: 6px;
}
.now-pill {
    margin-left: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: .08em;
    color: var(--accent); border: 1px solid rgba(52,211,153,0.35);
    border-radius: 999px; padding: 1px 7px;
}
.delta { font-size: 12px; font-weight: 600; }
.delta.up { color: #f87171; }
.delta.down { color: var(--accent); }
.delta.flat { color: var(--muted); }

/* A–F scale */
.scale { position: relative; margin-top: 50px; }
.scale-track {
    display: flex;
    height: 24px;
    border-radius: 8px;
    overflow: hidden;
}
.scale-seg {
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 800; color: #06281c;
    flex: none;
}
.scale-marker {
    position: absolute;
    top: -34px;
    transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center;
    transition: left .6s cubic-bezier(.22, 1, .36, 1);
}
.scale-flag {
    color: #06281c; font-weight: 800; font-size: 13px;
    padding: 3px 10px; border-radius: 7px; white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .35);
}
.scale-needle { width: 3px; height: 12px; border-radius: 2px; margin-top: 2px; }
.scale-ends { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-top: 7px; }

/* Stat grid */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat {
    background: var(--card-2);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}
.stat .v { font-size: 24px; font-weight: 700; }
.stat .k { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* Breakdown bars */
.bars { display: flex; flex-direction: column; gap: 12px; }
.bar-row { display: grid; grid-template-columns: 90px 1fr 90px; gap: 12px; align-items: center; font-size: 13px; }
.bar-track { background: var(--bg-soft); border-radius: 8px; height: 12px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 8px; transition: width .6s ease; }
.bar-row .amt { text-align: right; color: var(--muted); }
.bar-label { display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }

/* Resource table */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
td.size, th.size { text-align: right; white-space: nowrap; }
.url-cell { max-width: 480px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); }
.type-pill { font-size: 11px; padding: 2px 8px; border-radius: 6px; background: var(--bg-soft); }

/* Calculation steps */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li {
    padding: 12px 0 12px 0;
    border-bottom: 1px dashed var(--border);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}
.steps li:last-child { border-bottom: none; }

/* Assumptions */
.assume-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.assume-row { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.assume-row .lbl { color: var(--muted); }
.assume-row .val { font-weight: 600; text-align: right; }

details summary { cursor: pointer; color: var(--accent); font-size: 14px; font-weight: 600; padding: 4px 0; }
details[open] summary { margin-bottom: 12px; }

.foot { text-align: center; color: var(--muted); font-size: 13px; margin-top: 30px; line-height: 1.7; }

.site-foot {
    text-align: center;
    color: var(--muted);
    font-size: 13px;
    margin-top: 56px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
}
.site-foot a { font-weight: 600; }

.notes { margin-top: 14px; }
.notes .note { font-size: 12px; color: #fbbf24; background: rgba(251,191,36,0.08); border: 1px solid rgba(251,191,36,0.2); padding: 8px 12px; border-radius: 10px; margin-bottom: 6px; }

@media (max-width: 680px) {
    .verdict { grid-template-columns: 1fr; text-align: center; justify-items: center; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .assume-grid { grid-template-columns: 1fr; }
    .bar-row { grid-template-columns: 70px 1fr 72px; }

    /* Stack the URL field and button so the button never overflows narrow screens. */
    .search { flex-direction: column; align-items: stretch; }
    .search button { width: 100%; padding: 14px 24px; }
}

/* ---------------------------------------------------------------------------
   Print stylesheet — plain, no drop shadows. Keeps the meaningful colours
   (grade badge, A–F scale, breakdown bars) so the report is still readable.
   --------------------------------------------------------------------------- */
/* "How it works" long-form content page */
.doc { max-width: 760px; margin: 0 auto; }
.doc h1 { font-size: clamp(28px, 5vw, 40px); letter-spacing: -0.02em; margin: 0 0 16px; }
.doc h2 {
    font-size: 21px;
    margin: 38px 0 12px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
}
.doc p { color: var(--text); line-height: 1.7; margin: 0 0 14px; }
.doc .lead { font-size: 18px; color: var(--muted); }
.doc ul, .doc ol { color: var(--text); line-height: 1.7; padding-left: 22px; margin: 0 0 14px; }
.doc li { margin-bottom: 8px; }
.doc .muted { color: var(--muted); font-size: 14px; }
.doc a { color: var(--accent); }
.doc .formula {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 15px;
    color: var(--text);
}
.doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 4px 0 18px;
    font-size: 15px;
}
.doc-table th, .doc-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}
.doc-table th { color: var(--muted); font-weight: 600; }
.doc-table .total td { border-top: 2px solid var(--border); }
.doc .cta { margin-top: 34px; }
a.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #06231a;
    font-weight: 700;
    text-decoration: none;
    padding: 12px 22px;
    border-radius: 12px;
}
a.cta-btn:hover { color: #06231a; opacity: 0.92; }

@media print {
    html, body {
        background: #fff !important;
        color: #000 !important;
    }

    .wrap { max-width: 100%; padding: 12px 0 0; }

    /* Hide interactive / on-screen-only chrome */
    .badge, .search, .deep-toggle, .loading, .foot a, .actions, .nav-link, .cta { display: none !important; }

    /* Plain cards: flat border, white background, NO shadows */
    .card {
        box-shadow: none !important;
        background: #fff !important;
        border: 1px solid #cbd5cd !important;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    /* Strip every drop shadow on the page */
    .grade,
    .scale-flag,
    .tag,
    .stat,
    .search,
    .results,
    .verdict .grams { box-shadow: none !important; }

    /* Dark-theme text → readable on white paper */
    .hero h1, .hero p,
    .brand, .brand .brand-mark, .brand .brand-name strong,
    .verdict .headline, .verdict .grams, .verdict .cleaner,
    .stat .v, .steps li, .assume-row .val,
    .doc h1, .doc h2, .doc p, .doc li, .doc .formula,
    h2, td, th { color: #000 !important; }
    .doc .formula { background: #fff !important; border-color: #cbd5cd !important; }

    .card .sub, .stat .k, .assume-row .lbl,
    .bar-row .amt, .url-cell, .scale-ends, .foot, .site-foot { color: #444 !important; }
    .site-foot { border-top-color: #cbd5cd !important; }

    .tag, .stat, .type-pill { background: #f3f5f4 !important; border-color: #cbd5cd !important; }
    .bar-track { background: #e8ece9 !important; }

    /* Force the chart/scale colours to render on paper */
    .grade, .scale-seg, .scale-flag, .scale-needle, .bar-fill, .dot, .grade-pill {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    .spark polyline { stroke: #111 !important; }

    /* Avoid awkward page breaks inside key blocks */
    .scale, .stats, .bar-row, table { break-inside: avoid; page-break-inside: avoid; }

    a { color: #000 !important; text-decoration: none; }
}