/* Ostraca & Papyrus Field Journal — Aswan paleography stylesheet */
/* Revised 2026-06 */

:root {
    --opf-granite: #3d3a36;
    --opf-granite-deep: #28251f;
    --opf-papyrus: #d4b483;
    --opf-papyrus-soft: #e3c89f;
    --opf-ochre: #b04b3a;
    --opf-ochre-soft: #c66e5d;
    --opf-nile: #3b6e6b;
    --opf-nile-deep: #295450;
    --opf-parchment: #f5ecd6;
    --opf-parchment-edge: #e6dabb;
    --opf-ink: #1f1c18;
    --opf-ink-soft: #4a463f;
    --opf-line: #c9b690;

    --opf-classic: "Gentium Plus", "Iowan Old Style", Georgia, serif;
    --opf-sans: "Lato", "Helvetica Neue", Arial, sans-serif;
    --opf-mono: "B612 Mono", "Source Code Pro", Consolas, monospace;

    --opf-wide: 1160px;
    --opf-pad: clamp(20px, 3vw, 32px);
}

*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, p, ul, ol, blockquote, figure { margin: 0; padding: 0; }

body {
    font-family: var(--opf-classic);
    font-size: 17.5px;
    line-height: 1.72;
    color: var(--opf-ink);
    background: var(--opf-parchment);
}

h1, h2, h3, h4 { font-family: var(--opf-classic); font-weight: 700; color: var(--opf-granite-deep); line-height: 1.22; }
h1 { font-size: clamp(34px, 5vw, 50px); letter-spacing: -0.005em; }
h2 { font-size: clamp(26px, 3.4vw, 34px); margin-bottom: 14px; }
h3 { font-size: 22px; margin-bottom: 8px; }
h4 { font-family: var(--opf-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.18em; color: var(--opf-ochre); font-weight: 700; margin-bottom: 8px; }

p { margin-bottom: 14px; }
a { color: var(--opf-ochre); text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--opf-nile-deep); }
a:focus-visible { outline: 2px solid var(--opf-nile); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }

.opf-wrap { max-width: var(--opf-wide); margin: 0 auto; padding: 0 var(--opf-pad); }
.opf-narrow { max-width: 760px; margin: 0 auto; padding: 0 var(--opf-pad); }

/* Top */
.opf-top { background: var(--opf-parchment); border-bottom: 2px solid var(--opf-granite); position: sticky; top: 0; z-index: 50; }
.opf-top__inner { display: flex; align-items: center; justify-content: space-between; gap: 26px; padding: 16px 0; }
.opf-brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--opf-granite-deep); }
.opf-brand__seal { width: 46px; height: 46px; border-radius: 4px; background: var(--opf-granite); display: grid; place-items: center; color: var(--opf-papyrus); font-family: var(--opf-classic); font-weight: 700; font-size: 22px; border: 1.5px solid var(--opf-ochre); }
.opf-brand__name { font-family: var(--opf-classic); font-size: 19px; color: var(--opf-granite-deep); font-weight: 700; }
.opf-brand__sub { display: block; font-family: var(--opf-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--opf-ink-soft); margin-top: 3px; }

.opf-nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.opf-nav a { font-family: var(--opf-sans); font-size: 14.5px; font-weight: 600; color: var(--opf-ink); text-decoration: none; padding: 8px 0; border-bottom: 2px solid transparent; }
.opf-nav a:hover, .opf-nav a.is-here { color: var(--opf-ochre); border-bottom-color: var(--opf-nile); }
.opf-nav .opf-cta { background: var(--opf-granite); color: var(--opf-parchment); padding: 10px 18px; border-radius: 3px; border-bottom: none; font-weight: 700; }
.opf-nav .opf-cta:hover { background: var(--opf-granite-deep); border-bottom-color: transparent; color: var(--opf-parchment); }

.opf-burger { display: none; background: transparent; border: 1.5px solid var(--opf-granite); padding: 7px 11px; font-family: var(--opf-mono); font-size: 12px; color: var(--opf-granite-deep); cursor: pointer; text-transform: uppercase; letter-spacing: 0.1em; }

/* Hero — two-column mirror with transcription + gloss */
.opf-hero { background: var(--opf-parchment); padding: 80px 0 72px; border-bottom: 1px solid var(--opf-line); }
.opf-hero__grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 52px; align-items: stretch; }
.opf-hero__eyebrow { font-family: var(--opf-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--opf-ochre); margin-bottom: 16px; display: block; }
.opf-hero h1 { color: var(--opf-granite-deep); }
.opf-hero__lead { font-family: var(--opf-classic); font-size: 19px; line-height: 1.62; color: var(--opf-ink-soft); margin-top: 22px; font-weight: 400; }
.opf-hero__actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

.opf-hero__transcript { background: var(--opf-papyrus); border: 1px solid var(--opf-line); padding: 28px 30px; display: flex; flex-direction: column; gap: 12px; }
.opf-hero__inv { font-family: var(--opf-mono); font-size: 11px; color: var(--opf-granite-deep); letter-spacing: 0.14em; text-transform: uppercase; }
.opf-hero__source { font-family: var(--opf-classic); font-size: 18px; line-height: 1.55; color: var(--opf-granite-deep); padding: 12px 0; border-top: 1px dashed var(--opf-granite); border-bottom: 1px dashed var(--opf-granite); font-style: italic; }
.opf-hero__source span.rubric { color: var(--opf-ochre); }
.opf-hero__gloss { font-family: var(--opf-sans); font-size: 14.5px; color: var(--opf-ink-soft); line-height: 1.6; }
.opf-hero__gloss strong { color: var(--opf-nile-deep); }
.opf-hero__cite { font-family: var(--opf-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--opf-ochre); text-transform: uppercase; margin-top: auto; }

/* Buttons */
.opf-btn { display: inline-block; padding: 13px 24px; font-family: var(--opf-sans); font-size: 14.5px; font-weight: 700; text-decoration: none; border-radius: 3px; border: 2px solid transparent; transition: background 0.15s, color 0.15s, border-color 0.15s; cursor: pointer; letter-spacing: 0.02em; }
.opf-btn--granite { background: var(--opf-granite); color: var(--opf-parchment); border-color: var(--opf-granite); }
.opf-btn--granite:hover { background: var(--opf-granite-deep); border-color: var(--opf-granite-deep); color: var(--opf-parchment); }
.opf-btn--ochre { background: var(--opf-ochre); color: var(--opf-parchment); border-color: var(--opf-ochre); }
.opf-btn--ochre:hover { background: var(--opf-ochre-soft); border-color: var(--opf-ochre-soft); color: var(--opf-granite-deep); }
.opf-btn--outline { background: transparent; color: var(--opf-granite-deep); border-color: var(--opf-granite); }
.opf-btn--outline:hover { background: var(--opf-granite); color: var(--opf-parchment); }
.opf-btn--ghost { background: transparent; color: var(--opf-parchment); border-color: rgba(245,236,214,0.5); }
.opf-btn--ghost:hover { border-color: var(--opf-parchment); background: rgba(245,236,214,0.08); }

/* Sections */
.opf-section { padding: 80px 0; }
.opf-section--papyrus { background: var(--opf-papyrus-soft); }
.opf-section--granite { background: var(--opf-granite); color: var(--opf-parchment); }
.opf-section--granite h1, .opf-section--granite h2, .opf-section--granite h3 { color: var(--opf-parchment); }
.opf-section--granite a { color: var(--opf-papyrus); }

.opf-section__head { max-width: 760px; margin-bottom: 40px; }

/* Find cards */
.opf-finds { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.opf-find { background: var(--opf-parchment); border: 1px solid var(--opf-line); border-top: 4px solid var(--opf-ochre); padding: 24px 26px 26px; display: flex; flex-direction: column; gap: 10px; }
.opf-find--nile { border-top-color: var(--opf-nile); }
.opf-find--granite { border-top-color: var(--opf-granite); }
.opf-find__inv { font-family: var(--opf-mono); font-size: 11px; letter-spacing: 0.14em; color: var(--opf-ochre); text-transform: uppercase; }
.opf-find__title { font-family: var(--opf-classic); font-size: 21px; color: var(--opf-granite-deep); font-weight: 700; }
.opf-find__meta { font-family: var(--opf-mono); font-size: 12px; color: var(--opf-ink-soft); padding-top: 8px; border-top: 1px dotted var(--opf-line); }
.opf-find__excerpt { font-family: var(--opf-classic); font-size: 15px; color: var(--opf-ink-soft); line-height: 1.6; font-style: italic; }
.opf-find__link { margin-top: auto; font-family: var(--opf-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--opf-ochre); padding-top: 6px; }

/* Numbered method */
.opf-method { counter-reset: opf-step; display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 52px; }
.opf-method__item { padding-left: 64px; position: relative; counter-increment: opf-step; }
.opf-method__item::before { content: counter(opf-step, decimal-leading-zero); position: absolute; left: 0; top: -2px; font-family: var(--opf-classic); font-size: 44px; color: var(--opf-ochre); font-weight: 700; line-height: 1; }

/* Twocol */
.opf-twocol { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: start; }
.opf-twocol__media img { width: 100%; height: auto; border-radius: 3px; }
.opf-twocol__caption { font-family: var(--opf-mono); font-size: 11px; color: var(--opf-ink-soft); padding-top: 12px; text-transform: uppercase; letter-spacing: 0.1em; }

/* Stats */
.opf-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; padding: 40px 0; border-top: 2px solid var(--opf-granite); border-bottom: 2px solid var(--opf-granite); }
.opf-stat__num { font-family: var(--opf-classic); font-size: 46px; color: var(--opf-granite-deep); font-weight: 700; line-height: 1; }
.opf-stat__num span { color: var(--opf-ochre); font-size: 22px; margin-left: 4px; }
.opf-stat__label { font-family: var(--opf-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--opf-ink-soft); margin-top: 10px; }

/* Tiers */
.opf-tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.opf-tier { background: var(--opf-parchment); border: 1.5px solid var(--opf-line); padding: 34px 28px 28px; display: flex; flex-direction: column; position: relative; }
.opf-tier--key { border-color: var(--opf-ochre); border-width: 2px; }
.opf-tier--key::before { content: "Researcher standard"; position: absolute; top: -12px; left: 22px; background: var(--opf-ochre); color: var(--opf-parchment); font-family: var(--opf-mono); font-size: 11px; padding: 4px 12px; letter-spacing: 0.1em; text-transform: uppercase; }
.opf-tier__name { font-family: var(--opf-classic); font-size: 22px; color: var(--opf-granite-deep); font-weight: 700; }
.opf-tier__price { font-family: var(--opf-classic); font-size: 42px; color: var(--opf-ink); font-weight: 700; line-height: 1; margin: 10px 0 4px; }
.opf-tier__price small { font-family: var(--opf-mono); font-size: 13px; color: var(--opf-ink-soft); margin-left: 6px; font-weight: 400; }
.opf-tier__lead { font-size: 14.5px; color: var(--opf-ink-soft); margin-bottom: 22px; min-height: 56px; }
.opf-tier__list { list-style: none; padding: 0; margin: 0 0 22px; font-size: 14.5px; }
.opf-tier__list li { padding: 8px 0 8px 22px; position: relative; border-bottom: 1px dotted var(--opf-line); }
.opf-tier__list li::before { content: "†"; position: absolute; left: 0; color: var(--opf-ochre); font-family: var(--opf-classic); font-size: 14px; }
.opf-tier__cta { margin-top: auto; }

/* FAQ */
.opf-faq__item { border-bottom: 1.5px solid var(--opf-line); padding: 22px 0; }
.opf-faq__item summary { font-family: var(--opf-classic); font-size: 20px; color: var(--opf-granite-deep); font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.opf-faq__item summary::-webkit-details-marker { display: none; }
.opf-faq__item summary::after { content: "❧"; font-family: var(--opf-classic); color: var(--opf-ochre); font-size: 18px; }
.opf-faq__item[open] summary::after { content: "✤"; }
.opf-faq__item p { font-size: 15.5px; color: var(--opf-ink-soft); margin-top: 14px; line-height: 1.7; }

/* Form */
.opf-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 22px; background: var(--opf-parchment); padding: 36px; border: 1px solid var(--opf-line); border-left: 4px solid var(--opf-nile); }
.opf-form__row { display: flex; flex-direction: column; gap: 6px; }
.opf-form__row--full { grid-column: 1 / -1; }
.opf-form label { font-family: var(--opf-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--opf-granite-deep); }
.opf-form input, .opf-form select, .opf-form textarea { font-family: var(--opf-sans); font-size: 15px; padding: 12px 14px; background: var(--opf-papyrus-soft); border: 1px solid var(--opf-line); color: var(--opf-ink); border-radius: 3px; }
.opf-form input:focus, .opf-form select:focus, .opf-form textarea:focus { outline: 2px solid var(--opf-ochre); outline-offset: 1px; border-color: transparent; }
.opf-form textarea { resize: vertical; min-height: 130px; }
.opf-form__consent { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: var(--opf-ink-soft); line-height: 1.55; font-family: var(--opf-sans); }
.opf-form__consent input { width: 17px; height: 17px; margin-top: 3px; }
.opf-form__status { font-family: var(--opf-mono); font-size: 13px; color: var(--opf-ochre); min-height: 18px; text-transform: uppercase; letter-spacing: 0.08em; }

/* Table */
.opf-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.opf-table th, .opf-table td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--opf-line); vertical-align: top; }
.opf-table th { background: var(--opf-granite); color: var(--opf-parchment); font-family: var(--opf-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; }
.opf-table tr:nth-child(odd) td { background: var(--opf-papyrus-soft); }

/* Footer */
.opf-footer { background: var(--opf-granite-deep); color: rgba(245,236,214,0.78); padding: 64px 0 28px; font-size: 14px; }
.opf-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 38px; margin-bottom: 42px; }
.opf-footer h4 { color: var(--opf-papyrus); font-family: var(--opf-mono); font-size: 12px; }
.opf-footer ul { list-style: none; padding: 0; }
.opf-footer ul li { padding: 4px 0; }
.opf-footer a { color: rgba(245,236,214,0.78); text-decoration: none; }
.opf-footer a:hover { color: var(--opf-papyrus); }
.opf-footer__legal { border-top: 1px solid rgba(245,236,214,0.14); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; font-family: var(--opf-mono); font-size: 11.5px; color: rgba(245,236,214,0.6); letter-spacing: 0.05em; }
.opf-footer__address { font-style: normal; line-height: 1.75; }

/* Breadcrumb */
.opf-breadcrumb { font-family: var(--opf-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--opf-ink-soft); margin: 32px 0 16px; }
.opf-breadcrumb a { color: var(--opf-ink-soft); text-decoration: none; }
.opf-breadcrumb a:hover { color: var(--opf-ochre); }

.opf-eyebrow { font-family: var(--opf-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.16em; color: var(--opf-ochre); margin-bottom: 12px; display: block; }

.opf-thank { text-align: center; padding: 120px 0; background: var(--opf-papyrus-soft); }
.opf-thank__icon { width: 90px; height: 90px; border-radius: 8px; background: var(--opf-granite); color: var(--opf-papyrus); border: 2px solid var(--opf-ochre); margin: 0 auto 22px; display: grid; place-items: center; font-family: var(--opf-classic); font-size: 44px; font-weight: 700; }

/* Responsive */
@media (max-width: 1160px) {
    .opf-hero__grid { grid-template-columns: 1fr; gap: 36px; }
    .opf-finds { grid-template-columns: repeat(2, 1fr); }
    .opf-stats { grid-template-columns: repeat(2, 1fr); }
    .opf-twocol { grid-template-columns: 1fr; gap: 36px; }
    .opf-method { grid-template-columns: 1fr; gap: 28px; }
    .opf-tiers { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 800px) {
    body { font-size: 16.5px; }
    .opf-nav { display: none; }
    .opf-nav.is-open { display: flex; position: absolute; top: 100%; left: 0; right: 0; background: var(--opf-parchment); flex-direction: column; padding: 22px var(--opf-pad); gap: 4px; border-bottom: 2px solid var(--opf-granite); }
    .opf-burger { display: inline-block; }
    .opf-section { padding: 56px 0; }
    .opf-hero { padding: 56px 0 56px; }
    .opf-form { grid-template-columns: 1fr; padding: 26px; }
    .opf-footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 500px) {
    .opf-finds { grid-template-columns: 1fr; }
    .opf-stats { grid-template-columns: 1fr; gap: 24px; padding: 28px 0; }
    .opf-footer__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .opf-btn { transition: none; }
    *, *::before, *::after { animation-duration: 4.5ms !important; animation-iteration-count: 1 !important; transition-duration: 4.5ms !important; }
}