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

:root {
    --ovr_canvas: #f6f3f7;
    --ovr_panel: #ffffff;
    --ovr_ink: #2d2630;
    --ovr_muted: #5f5566;
    --ovr_accent: #6b4a6e;
    --ovr_accent_dark: #573b5a;
    --ovr_band: #ece6ee;
    --ovr_line: #ded4e0;
    --ovr_serif: Georgia, "Times New Roman", serif;
    --ovr_sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    --ovr_rad_sm: 7px;
    --ovr_rad_md: 12px;
    --ovr_rad_lg: 16px;
    --ovr_shade_sm: 0 2px 8px rgba(45, 38, 48, 0.05);
    --ovr_shade_md: 0 8px 22px rgba(45, 38, 48, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--ovr_canvas);
    font-family: var(--ovr_sans);
    font-size: 16px;
    line-height: 1.72;
    color: var(--ovr_ink);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--ovr_accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--ovr_accent_dark);
}

/* ---------- top bar ---------- */
.ovr_topbar {
    background: var(--ovr_panel);
    border-bottom: 1px solid var(--ovr_line);
    padding: 18px 20px 16px;
}

.ovr_topbar_inner {
    max-width: 1080px;
    margin: 0 auto;
    text-align: center;
}

.ovr_logo {
    display: inline-block;
    font-family: var(--ovr_serif);
    font-size: 21px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-indent: 0.2em;
    text-transform: uppercase;
    color: var(--ovr_accent);
    text-decoration: none;
}

.ovr_logo:hover {
    color: var(--ovr_accent_dark);
}

/* ---------- paper head ---------- */
.ovr_paper_head {
    max-width: 820px;
    margin: 0 auto;
    padding: 50px 22px 10px;
    text-align: center;
}

.ovr_paper_title {
    font-family: var(--ovr_serif);
    font-size: clamp(26px, 4.2vw, 42px);
    font-weight: 700;
    line-height: 1.24;
    color: var(--ovr_ink);
}

.ovr_paper_sub {
    display: block;
    max-width: 640px;
    margin: 14px auto 0;
    font-size: 16px;
    color: var(--ovr_muted);
}

.ovr_paper_stamp {
    display: inline-block;
    margin-top: 20px;
    padding: 6px 16px;
    border: 1px solid var(--ovr_line);
    border-radius: 999px;
    background: var(--ovr_panel);
    box-shadow: var(--ovr_shade_sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--ovr_accent);
}

/* ---------- card grid ---------- */
.ovr_sheet {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 26px 22px 56px;
}

.ovr_deck {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
}

.ovr_slab {
    position: relative;
    padding: 30px 24px 24px;
    background: var(--ovr_panel);
    border: 1px solid var(--ovr_line);
    border-radius: var(--ovr_rad_lg);
    box-shadow: var(--ovr_shade_sm);
    transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

.ovr_slab:hover {
    border-color: rgba(107, 74, 110, 0.45);
    box-shadow: var(--ovr_shade_md);
}

.ovr_slab_tag {
    position: absolute;
    top: 14px;
    right: 16px;
    min-width: 30px;
    height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    background: var(--ovr_band);
    border: 1px solid var(--ovr_line);
    display: grid;
    place-items: center;
    font-family: var(--ovr_serif);
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    color: var(--ovr_accent);
}

.ovr_slab:hover .ovr_slab_tag {
    background: var(--ovr_accent);
    border-color: var(--ovr_accent);
    color: #ffffff;
}

.ovr_slab_title {
    font-family: var(--ovr_serif);
    font-size: clamp(18px, 2.1vw, 22px);
    font-weight: 700;
    line-height: 1.32;
    color: var(--ovr_ink);
    margin: 0 44px 12px 0;
}

.ovr_slab_text p {
    margin-bottom: 12px;
    color: var(--ovr_muted);
}

.ovr_slab_text p:last-child {
    margin-bottom: 0;
}

.ovr_slab_text strong {
    color: var(--ovr_ink);
}

.ovr_slab_text ul,
.ovr_slab_text ol {
    margin: 0 0 12px;
    padding-left: 0;
    list-style: none;
    color: var(--ovr_muted);
}

.ovr_slab_text ul:last-child,
.ovr_slab_text ol:last-child {
    margin-bottom: 0;
}

.ovr_slab_text ol {
    counter-reset: ovr_tally;
}

.ovr_slab_text li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
}

.ovr_slab_text li:last-child {
    margin-bottom: 0;
}

.ovr_slab_text ul > li::before {
    content: "";
    position: absolute;
    left: 3px;
    top: 0.72em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(107, 74, 110, 0.55);
}

.ovr_slab_text ol > li {
    counter-increment: ovr_tally;
    padding-left: 30px;
}

.ovr_slab_text ol > li::before {
    content: counter(ovr_tally);
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--ovr_serif);
    font-weight: 700;
    color: var(--ovr_accent);
}

/* ---------- blocks inside a card ---------- */
.ovr_warn {
    margin: 14px 0 4px;
    padding: 15px 17px;
    background: var(--ovr_band);
    border: 1px solid rgba(107, 74, 110, 0.24);
    border-radius: var(--ovr_rad_md);
}

.ovr_warn p {
    margin: 0;
    font-size: 15px;
    color: var(--ovr_ink);
}

.ovr_duo {
    margin: 12px 0;
    display: grid;
    gap: 9px;
}

.ovr_duo_row {
    display: grid;
    grid-template-columns: minmax(130px, 38%) 1fr;
    gap: 3px 14px;
    padding: 11px 13px;
    background: #fbf9fb;
    border: 1px solid var(--ovr_line);
    border-radius: var(--ovr_rad_sm);
    font-size: 15px;
}

.ovr_duo_key {
    font-weight: 700;
    color: var(--ovr_ink);
}

.ovr_duo_val {
    color: var(--ovr_muted);
}

.ovr_board {
    width: 100%;
    border-collapse: collapse;
    margin: 14px 0;
    font-size: 15px;
    border: 1px solid var(--ovr_line);
    border-radius: var(--ovr_rad_sm);
    overflow: hidden;
}

.ovr_board th {
    background: var(--ovr_band);
    color: var(--ovr_ink);
    text-align: left;
    padding: 11px 13px;
    font-size: 14px;
    font-weight: 700;
}

.ovr_board td {
    padding: 10px 13px;
    border-top: 1px solid var(--ovr_line);
    color: var(--ovr_muted);
}

.ovr_board tbody tr:nth-child(even) td {
    background: #fbf9fb;
}

.ovr_chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}

.ovr_chip {
    display: inline-block;
    padding: 5px 13px;
    border-radius: 999px;
    border: 1px solid rgba(107, 74, 110, 0.3);
    background: #fbf9fb;
    font-size: 13px;
    font-weight: 600;
    color: var(--ovr_accent);
}

/* ---------- closing strip ---------- */
.ovr_tailnote {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 22px 54px;
}

.ovr_tailnote_inner {
    padding: 19px 22px;
    border: 1px dashed rgba(107, 74, 110, 0.4);
    border-radius: var(--ovr_rad_lg);
    background: rgba(255, 255, 255, 0.72);
    font-size: 15px;
    color: var(--ovr_muted);
    text-align: center;
}

/* ---------- footer ---------- */
.ovr_foot {
    margin-top: auto;
    flex-shrink: 0;
    background: var(--ovr_band);
    border-top: 1px solid var(--ovr_line);
    padding: 28px 20px 26px;
    text-align: center;
}

.ovr_foot_inner {
    max-width: 880px;
    margin: 0 auto;
}

.ovr_foot_links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 24px;
    margin-bottom: 14px;
}

.ovr_foot_links a {
    color: var(--ovr_accent);
    font-size: 12.5px;
    letter-spacing: 0.04em;
    text-decoration: none;
    border-bottom: 1px solid rgba(107, 74, 110, 0.4);
    padding-bottom: 2px;
}

.ovr_foot_links a:hover {
    color: var(--ovr_accent_dark);
    border-bottom-color: var(--ovr_accent_dark);
}

.ovr_foot_copy {
    font-size: 12.5px;
    color: #5a5060;
    margin-bottom: 9px;
}

.ovr_foot_legal {
    font-size: 11.5px;
    line-height: 1.75;
    color: #5a5060;
    max-width: 760px;
    margin: 0 auto;
}

@media (max-width: 760px) {
    .ovr_deck {
        grid-template-columns: minmax(0, 1fr);
        gap: 16px;
    }

    .ovr_paper_head {
        padding-top: 38px;
    }

    .ovr_slab {
        padding: 28px 18px 20px;
    }

    .ovr_sheet {
        padding: 22px 16px 46px;
    }

    .ovr_tailnote {
        padding: 0 16px 44px;
    }
}

@media (max-width: 520px) {
    .ovr_duo_row {
        grid-template-columns: minmax(0, 1fr);
    }

    .ovr_board,
    .ovr_board th,
    .ovr_board td {
        font-size: 14px;
    }
}