*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --qav-forest: #1f4d2e;
    --qav-leaf: #37784a;
    --qav-copper: #c96f2b;
    --qav-ink: #14251a;
    --qav-mute: #5f7566;
    --qav-paper: #f6faf5;
    --qav-panel: #ffffff;
    --qav-edge: #d5e5d8;
    --qav-deep: #0e1a12;
    --qav-title: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
    --qav-body: Verdana, Geneva, sans-serif;
    --qav-r: 6px;
    --qav-flat: 0 1px 2px rgba(20, 37, 26, .06);
    --qav-flat2: 0 2px 6px rgba(20, 37, 26, .08);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--qav-body);
    background: linear-gradient(180deg, #e4efe6 0%, #eef6ef 34%, var(--qav-paper) 100%);
    background-attachment: fixed;
    color: var(--qav-ink);
    font-size: 15px;
    line-height: 1.7;
}

a {
    color: var(--qav-forest);
    text-decoration: none;
    transition: color .2s ease;
}
a:hover { color: var(--qav-copper); }

/* ---------- header ---------- */
.qav-x-head {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 14px 20px;
    background: var(--qav-forest);
    border-bottom: 3px solid var(--qav-copper);
}
.qav-x-head-inner {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.qav-x-brand {
    font-family: var(--qav-title);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: .26em;
    text-transform: uppercase;
    color: #ffffff;
}
.qav-x-brand:hover { color: #f3d9c3; }

/* ---------- doc hero with numeric step chips ---------- */
.qav-x-doc-hero {
    max-width: 1080px;
    margin: 0 auto;
    padding: 48px 20px 26px;
}
.qav-x-doc-tag {
    display: inline-block;
    padding: 5px 12px;
    border: 1px solid var(--qav-leaf);
    border-left: 4px solid var(--qav-copper);
    border-radius: var(--qav-r);
    background: var(--qav-panel);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--qav-forest);
    margin-bottom: 16px;
}
.qav-x-doc-title {
    font-family: var(--qav-title);
    font-weight: 700;
    font-size: clamp(25px, 4.2vw, 42px);
    line-height: 1.24;
    color: var(--qav-forest);
    max-width: 780px;
    margin-bottom: 12px;
}
.qav-x-mark {
    position: relative;
    display: inline-block;
    z-index: 0;
    color: #ffffff;
    padding: 0 10px;
    margin: 0 2px;
}
.qav-x-mark::before {
    content: "";
    position: absolute;
    top: -1px;
    bottom: -1px;
    left: -4px;
    right: -4px;
    background: var(--qav-copper);
    transform: skewX(-10deg);
    border-radius: 3px;
    z-index: -1;
}
.qav-x-doc-lede {
    max-width: 660px;
    color: var(--qav-mute);
    font-size: 15px;
    line-height: 1.8;
}

.qav-x-doc-chips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
    margin-top: 30px;
}
.qav-x-doc-chip {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--qav-panel);
    border: 1px solid var(--qav-edge);
    border-bottom: 3px solid var(--qav-leaf);
    border-radius: var(--qav-r);
    box-shadow: var(--qav-flat);
}
.qav-x-doc-chip-num {
    font-family: var(--qav-title);
    font-size: 34px;
    font-weight: 700;
    line-height: 1;
    color: var(--qav-copper);
    letter-spacing: -.04em;
}
.qav-x-doc-chip-text {
    font-size: 12px;
    line-height: 1.55;
    color: var(--qav-mute);
}
.qav-x-doc-chip-text b {
    display: block;
    font-family: var(--qav-title);
    font-size: 13px;
    color: var(--qav-forest);
}

/* ---------- two-column section grid ---------- */
.qav-x-doc-grid {
    max-width: 1080px;
    margin: 0 auto;
    padding: 10px 20px 70px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}
.qav-x-doc-cell {
    background: var(--qav-panel);
    border: 1px solid var(--qav-edge);
    border-radius: var(--qav-r);
    box-shadow: var(--qav-flat);
    padding: 22px 24px 20px;
}
.qav-x-doc-cell-wide { grid-column: 1 / -1; }

.qav-x-doc-head {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--qav-title);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--qav-forest);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--qav-edge);
}
.qav-x-doc-num {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: var(--qav-forest);
    color: #ffffff;
    font-size: 13px;
    font-weight: 700;
}
.qav-x-doc-cell p { color: var(--qav-mute); margin-bottom: 12px; }
.qav-x-doc-cell p:last-child { margin-bottom: 0; }
.qav-x-doc-cell ul,
.qav-x-doc-cell ol {
    padding-left: 20px;
    margin: 0 0 12px;
    color: var(--qav-mute);
}
.qav-x-doc-cell li { margin-bottom: 6px; }
.qav-x-doc-cell li::marker { color: var(--qav-copper); }
.qav-x-doc-cell strong { color: var(--qav-ink); }
.qav-x-doc-cell h3 {
    font-family: var(--qav-title);
    font-size: 14px;
    color: var(--qav-ink);
    margin: 14px 0 6px;
}

.qav-x-doc-meta {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px 6px;
    font-size: 12px;
    color: var(--qav-mute);
}

.qav-x-doc-note {
    margin: 14px 0 4px;
    padding: 14px 16px;
    border: 1px solid rgba(201, 111, 43, .45);
    border-left: 4px solid var(--qav-copper);
    border-radius: var(--qav-r);
    background: #fdf5ee;
}
.qav-x-doc-note p { color: var(--qav-ink); margin: 0; font-size: 14px; }

.qav-x-doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 6px 0 10px;
    font-size: 13px;
    border: 1px solid var(--qav-edge);
    border-radius: var(--qav-r);
    overflow: hidden;
}
.qav-x-doc-table th {
    background: var(--qav-forest);
    color: #ffffff;
    text-align: left;
    padding: 10px 12px;
    font-family: var(--qav-title);
    font-size: 12px;
    letter-spacing: .04em;
}
.qav-x-doc-table td {
    padding: 10px 12px;
    border-top: 1px solid var(--qav-edge);
    color: var(--qav-mute);
    vertical-align: top;
}
.qav-x-doc-table tr:nth-child(even) td { background: #f3f8f4; }

.qav-x-doc-steps {
    display: grid;
    gap: 10px;
    margin: 4px 0 6px;
}
.qav-x-doc-step {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 12px;
    align-items: start;
    padding: 12px 14px;
    background: #f3f8f4;
    border: 1px solid var(--qav-edge);
    border-radius: var(--qav-r);
}
.qav-x-doc-step-num {
    width: 34px;
    height: 34px;
    border-radius: var(--qav-r);
    display: grid;
    place-items: center;
    background: var(--qav-copper);
    color: #ffffff;
    font-family: var(--qav-title);
    font-size: 14px;
    font-weight: 700;
}
.qav-x-doc-step-title {
    font-family: var(--qav-title);
    font-size: 13px;
    font-weight: 700;
    color: var(--qav-forest);
    margin-bottom: 2px;
}
.qav-x-doc-step-text { font-size: 13px; color: var(--qav-mute); }

.qav-x-doc-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin: 4px 0 8px;
}
.qav-x-doc-fact {
    padding: 14px;
    background: #f3f8f4;
    border: 1px solid var(--qav-edge);
    border-top: 3px solid var(--qav-copper);
    border-radius: var(--qav-r);
}
.qav-x-doc-fact-title {
    font-family: var(--qav-title);
    font-size: 13px;
    font-weight: 700;
    color: var(--qav-forest);
    margin-bottom: 4px;
}
.qav-x-doc-fact-body { font-size: 13px; line-height: 1.6; color: var(--qav-mute); }

@media (max-width: 820px) {
    .qav-x-doc-grid { grid-template-columns: 1fr; }
    .qav-x-doc-hero { padding-top: 34px; }
    .qav-x-doc-cell { padding: 18px 16px; }
}

/* ---------- footer ---------- */
.qav-x-foot {
    margin-top: 10px;
    background: #e8f1e9;
    border-top: 3px solid var(--qav-forest);
    padding: 22px 20px 20px;
    text-align: center;
}
.qav-x-foot-inner {
    max-width: 900px;
    margin: 0 auto;
}
.qav-x-foot-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 22px;
    margin-bottom: 12px;
}
.qav-x-foot-nav a {
    color: var(--qav-forest);
    font-size: 12px;
    font-weight: 700;
    border-bottom: 1px solid rgba(201, 111, 43, .4);
}
.qav-x-foot-nav a:hover { color: var(--qav-copper); }
.qav-x-foot-copy {
    font-size: 11px;
    color: var(--qav-mute);
    margin-bottom: 8px;
}
.qav-x-foot-note {
    font-size: 11px;
    line-height: 1.65;
    color: var(--qav-mute);
    max-width: 720px;
    margin: 0 auto;
}