/* Xyncema Reef — sea light on pale water, rounded chips, wide plates. Eligibility does the work, so open and
   closed courses have to read differently at a glance without the closed ones feeling like a punishment. */

[data-theme="divecenter"] body { background: var(--bg); color: var(--text); font-family: var(--font-body); }
.rf-wrap { width: min(100% - 2.5rem, 76rem); margin-inline: auto; }
.rf-muted { color: var(--muted); }
.rf-h1, .rf-h2, .rf-h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.08; margin: 0; letter-spacing: -0.02em; }
.rf-h1 { font-size: clamp(2.3rem, 1.5rem + 3.3vw, 4rem); }
.rf-h2 { font-size: clamp(1.7rem, 1.35rem + 1.6vw, 2.5rem); }
.rf-h3 { font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem); }
.rf-h4 { font: 600 1.05rem/1.3 var(--font-heading); margin: 0; }
.rf-h2 a, .rf-h3 a { color: inherit; text-decoration: none; }
.rf-h2 a:hover, .rf-h3 a:hover { color: var(--primary); text-decoration: underline; text-underline-offset: 4px; }
.rf-eyebrow { display: inline-block; font: 700 0.75rem/1 var(--font-body); letter-spacing: 0.14em; text-transform: uppercase; color: var(--primary-ink); margin: 0 0 0.9rem; }
.rf-lead { font-size: clamp(1rem, 0.96rem + 0.3vw, 1.14rem); line-height: 1.7; color: var(--muted); }
.rf-link { color: var(--primary-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Header ---------- */
.rf-notice { background: var(--surface-2); color: var(--on-surface-2); font-size: 0.8125rem; line-height: 1.45; padding: 0.55rem 0; }
.rf-notice p { margin: 0; }
.rf-header { position: sticky; top: 0; z-index: 30; background: rgba(242, 247, 247, 0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.rf-header__row { display: flex; align-items: center; gap: 1.25rem; min-height: 4.25rem; }
.rf-logo { display: flex; align-items: center; gap: 0.45rem; text-decoration: none; color: var(--text); margin-right: auto; }
.rf-logo svg { width: 1.7rem; height: 1.7rem; color: var(--primary); }
.rf-logo span { font-family: var(--font-heading); font-weight: 600; font-size: 1.6rem; line-height: 1; letter-spacing: -0.02em; }
.rf-logo small { font-size: 0.6875rem; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }
.rf-nav { display: flex; gap: 1.4rem; }
.rf-nav a { color: var(--text); text-decoration: none; font-weight: 600; font-size: 0.9375rem; padding: 0.4rem 0; border-bottom: 2px solid transparent; }
.rf-nav a:hover, .rf-nav a[aria-current="page"] { border-bottom-color: var(--primary); }
.rf-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: var(--radius); width: 2.75rem; height: 2.75rem; padding: 0.6rem; color: var(--text); cursor: pointer; }
.rf-toggle svg { width: 100%; height: 100%; }
.rf-mobile { display: none; flex-direction: column; padding-bottom: 1rem; }
.rf-mobile a { padding: 0.85rem 0; border-top: 1px solid var(--border); color: var(--text); text-decoration: none; font-weight: 600; }
.rf-mobile[data-open] { display: flex; }
@media (max-width: 980px) { .rf-nav, .rf-header .rf-btn { display: none; } .rf-toggle { display: block; } }

/* ---------- Buttons ---------- */
.rf-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; min-height: 2.9rem; padding: 0 1.35rem; border-radius: var(--radius-btn); border: 1.5px solid var(--primary); background: var(--primary); color: var(--on-primary); font: 600 0.9375rem/1 var(--font-body); text-decoration: none; cursor: pointer; }
.rf-btn:hover { background: var(--primary-ink); border-color: var(--primary-ink); }
.rf-btn--line { background: var(--surface); color: var(--primary-ink); }
.rf-btn--line:hover { background: #E2F1F2; color: var(--primary-ink); }
.rf-btn--ghost { background: transparent; color: #FFFFFF; border-color: rgba(255,255,255,.6); }
.rf-btn--ghost:hover { background: rgba(255,255,255,.14); border-color: #FFFFFF; }
.rf-btn svg { width: 1.05rem; height: 1.05rem; }

/* ---------- Sections ---------- */
.rf-section { padding-block: clamp(2.75rem, 2rem + 3.5vw, 5rem); }
.rf-section--white { background: var(--surface); }
.rf-section--deep { background: var(--surface-2); color: var(--on-surface-2); }
.rf-section--deep .rf-eyebrow { color: var(--primary-on-dark); }
.rf-section--deep .rf-lead { color: #C3E0E3; }
.rf-head { display: grid; gap: 0.75rem; margin-bottom: 1.9rem; max-width: 48rem; }

/* ---------- Hero ---------- */
.rf-hero { position: relative; overflow: hidden; display: grid; }
.rf-hero__media, .rf-hero__inner { grid-area: 1 / 1; }
.rf-hero__media { position: relative; min-height: min(72vh, 660px); }
.rf-hero__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.rf-hero__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(7,59,66,.45) 0%, rgba(7,59,66,.5) 45%, rgba(7,59,66,.86) 100%); }
.rf-hero__inner { position: relative; z-index: 1; display: grid; align-content: end; padding-block: clamp(3rem, 6vw, 5rem) clamp(2rem, 4vw, 3.5rem); color: #FFFFFF; }
.rf-hero .rf-eyebrow { color: var(--secondary); }
.rf-hero h1 { max-width: 18ch; }
.rf-hero__copy { max-width: 48ch; line-height: 1.7; margin: 1.1rem 0 1.6rem; color: #DCEEF0; }
.rf-hero__actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }

/* ---------- Booking ---------- */
.rf-book { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 21rem); gap: clamp(1.25rem, 3vw, 2rem); align-items: start; }
.rf-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(1.1rem, 2.5vw, 1.6rem); }
.rf-bform { display: grid; gap: 1.75rem; }
.rf-set { border: 0; margin: 0; padding: 0; min-width: 0; min-inline-size: 0; }
.rf-set > legend { font: 700 0.75rem/1 var(--font-body); letter-spacing: 0.14em; text-transform: uppercase; color: var(--primary-ink); padding: 0; margin-bottom: 0.85rem; }
.rf-asks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem 1.5rem; }
.rf-asklabel { font-weight: 600; font-size: 0.9375rem; margin: 0 0 0.5rem; }
.rf-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.rf-chips label { position: relative; }
.rf-chips input { position: absolute; opacity: 0; width: 0; height: 0; }
.rf-chips span { display: inline-flex; align-items: center; min-height: 2.5rem; padding: 0 0.95rem; border-radius: 999px; border: 1px solid var(--border); background: var(--bg); font-size: 0.875rem; cursor: pointer; }
.rf-chips label:has(input:checked) span { background: var(--primary); border-color: var(--primary); color: var(--on-primary); font-weight: 600; }
.rf-chips label:has(input:focus-visible) span { outline: 2px solid var(--focus); outline-offset: 2px; }
@media (max-width: 700px) { .rf-asks { grid-template-columns: minmax(0, 1fr); } }

.rf-courses { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.rf-course { border: 1px solid var(--border); border-radius: var(--radius); padding: 1.05rem 1.15rem; display: grid; gap: 0.4rem; background: var(--bg); }
.rf-course.is-sel { border-color: var(--primary); box-shadow: inset 0 0 0 1.5px var(--primary); background: #E8F5F5; }
.rf-course.is-closed { background: repeating-linear-gradient(135deg, #EFF3F3 0 10px, #E9EFEF 10px 20px); }
.rf-course__top { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.rf-course__short { margin: 0; font-size: 0.9375rem; line-height: 1.55; }
.rf-course__meta { margin: 0; font-size: 0.875rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.rf-course .rf-btn, .rf-course > .rf-link { justify-self: start; margin-top: 0.35rem; }
.rf-tag { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; background: #D9EFDE; color: #14532D; border-radius: 999px; padding: 0.2rem 0.65rem; white-space: nowrap; }
.rf-tag--closed { background: #F4E3D2; color: #7A3D0E; }
.rf-why { margin: 0; font-size: 0.9125rem; line-height: 1.55; background: #FFF4E2; border-left: 3px solid var(--secondary); padding: 0.6rem 0.8rem; border-radius: 0 8px 8px 0; }
.rf-note { margin: 0; font-size: 0.875rem; color: var(--muted); }

.rf-days { display: flex; gap: 0.4rem; overflow-x: auto; padding: 5px 5px calc(5px + 0.3rem); margin: -5px; }
.rf-day { flex: none; display: grid; gap: 0.1rem; justify-items: center; min-width: 4rem; padding: 0.5rem 0.5rem; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); cursor: pointer; font: inherit; }
.rf-day small { font-size: 0.6875rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.rf-day b { font-size: 1.15rem; line-height: 1; }
.rf-day[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.rf-day[aria-pressed="true"] small { color: #D6F0F2; }
.rf-sessions { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.5rem; }
.rf-session { display: grid; gap: 0.15rem; justify-items: start; padding: 0.8rem 0.95rem; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); cursor: pointer; font: inherit; text-align: left; }
.rf-session b { font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.rf-session span { font-size: 0.875rem; color: var(--muted); }
.rf-session small { font-size: 0.8125rem; color: var(--primary-ink); font-weight: 600; }
.rf-session.is-sel { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.rf-session.is-sel span, .rf-session.is-sel small { color: #D6F0F2; }
.rf-session:disabled { cursor: not-allowed; background: repeating-linear-gradient(135deg, #EFF3F3 0 8px, #E6ECEC 8px 16px); color: #6C8386; }
.rf-session:disabled small { color: #8A5B2B; }
.rf-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.rf-health { font-size: 0.9125rem; line-height: 1.6; background: #E8F5F5; border-radius: 10px; padding: 0.8rem 1rem; margin: 1rem 0 0; }
@media (max-width: 980px) { .rf-book { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 620px) { .rf-fields { grid-template-columns: minmax(0, 1fr); } }

.rf-sum { position: sticky; top: 5.5rem; display: grid; gap: 0.9rem; background: var(--bg); }
.rf-sumlist { margin: 0; display: grid; }
.rf-sumlist div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.9375rem; }
.rf-sumlist dt { color: var(--muted); }
.rf-sumlist dd { margin: 0; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.rf-total { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: baseline; gap: 1rem; margin: 0; }
.rf-total span { font-family: var(--font-heading); font-size: 1.7rem; color: var(--primary-ink); font-variant-numeric: tabular-nums; }
.rf-ok { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem; align-items: start; font-weight: 700; margin: 0 0 1rem; color: var(--primary-ink); }
.rf-ok svg { width: 1.3rem; height: 1.3rem; }

/* ---------- Course cards, tides, safety ---------- */
.rf-courses-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.rf-cc { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: grid; grid-template-rows: auto 1fr; }
.rf-cc img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.rf-cc__body { padding: 1rem 1.1rem 1.2rem; display: grid; gap: 0.35rem; align-content: start; }
.rf-cc p { margin: 0; color: var(--muted); font-size: 0.9125rem; line-height: 1.55; }
.rf-price { font-family: var(--font-heading); font-size: 1.2rem; color: var(--text) !important; font-variant-numeric: tabular-nums; }
.rf-price small { font-family: var(--font-body); font-size: 0.8125rem; color: var(--muted); }
.rf-needs { color: var(--primary-ink); font-weight: 600; font-size: 0.8125rem; line-height: 1.4; }
@media (max-width: 1100px) { .rf-courses-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .rf-courses-grid { grid-template-columns: minmax(0, 1fr); } }

.rf-tablewrap { overflow-x: auto; min-width: 0; border: 1px solid rgba(255,255,255,.18); border-radius: var(--radius); }
.rf-section--white .rf-tablewrap, .rf-section .rf-tablewrap { border-color: var(--border); background: var(--surface); }
.rf-section--deep .rf-tablewrap { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.18); }
.rf-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; min-width: 40rem; }
.rf-table th, .rf-table td { text-align: left; padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.rf-section--deep .rf-table th, .rf-section--deep .rf-table td { border-color: rgba(255,255,255,.16); }
.rf-table thead th { font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--primary-ink); font-variant-numeric: normal; }
.rf-section--deep .rf-table thead th { color: var(--primary-on-dark); }
.rf-table tbody tr:last-child th, .rf-table tbody tr:last-child td { border-bottom: 0; }

.rf-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.rf-conditions { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.rf-conditions li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 0.7rem 0.95rem; font-size: 0.9375rem; }
.rf-flying { margin: 1.2rem 0 0; font-weight: 600; background: #FFF4E2; border-left: 3px solid var(--secondary); padding: 0.75rem 1rem; border-radius: 0 10px 10px 0; line-height: 1.6; font-size: 0.9375rem; }
@media (max-width: 860px) { .rf-split { grid-template-columns: minmax(0, 1fr); } }
.rf-does { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2rem; }
.rf-does li { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem; padding: 0.9rem 0; border-top: 1px solid var(--border); line-height: 1.6; }
.rf-does li::before { content: "✕"; color: var(--primary); font-weight: 700; }
@media (max-width: 760px) { .rf-does { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Collection / detail ---------- */
.rf-pagehead { padding-block: clamp(2.25rem, 2rem + 3vw, 4rem); }
.rf-dhead { padding-block: clamp(2rem, 1.5rem + 2.5vw, 3.25rem); }
.rf-crumb { font-size: 0.875rem; color: var(--muted); margin: 0 0 1rem; }
.rf-crumb a { color: var(--muted); }
.rf-dgrid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(1.5rem, 3vw, 2.5rem); align-items: center; }
.rf-dgrid img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.rf-dmeta { margin: 1.1rem 0 0; font-size: 1rem; font-variant-numeric: tabular-nums; }
.rf-dmeta b { font-family: var(--font-heading); font-size: 1.3rem; }
.rf-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem 2.5rem; }
.rf-list { list-style: none; margin: 0.8rem 0 0; padding: 0; display: grid; }
.rf-list li { display: grid; grid-template-columns: auto 1fr; gap: 0.6rem; padding: 0.6rem 0; border-top: 1px solid var(--border); line-height: 1.6; font-size: 0.9375rem; }
.rf-list li::before { content: "•"; color: var(--primary); font-weight: 700; }
.rf-list--yes li::before { content: "+"; }
.rf-list--no li::before { content: "−"; color: var(--muted); }
.rf-thumbs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; margin-top: 1rem; }
.rf-thumb { padding: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: none; cursor: pointer; }
.rf-thumb img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.rf-thumb:hover { border-color: var(--primary); }
@media (max-width: 860px) { .rf-dgrid, .rf-cols { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .rf-thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- FAQ + footer ---------- */
.rf-faq details { border-top: 1px solid var(--border); }
.rf-faq details:last-of-type { border-bottom: 1px solid var(--border); }
.rf-faq summary { cursor: pointer; padding: 1rem 0; font-weight: 600; line-height: 1.4; list-style: none; display: grid; grid-template-columns: 1fr auto; gap: 1rem; }
.rf-faq summary::-webkit-details-marker { display: none; }
.rf-faq summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; line-height: 1; }
.rf-faq details[open] summary::after { content: "–"; }
.rf-faq p { margin: 0 0 1.1rem; color: var(--muted); line-height: 1.7; max-width: 46rem; }
.rf-footer { background: var(--surface-2); color: var(--on-surface-2); padding-block: clamp(2.5rem, 2rem + 3vw, 3.5rem) 2rem; }
.rf-footer .rf-logo { color: var(--on-surface-2); }
.rf-footer .rf-logo svg { color: var(--primary-on-dark); }
.rf-footer .rf-logo small { color: #A9CBCE; }
.rf-footer__grid { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 2rem; }
.rf-footer p { color: #C3E0E3; line-height: 1.7; font-size: 0.9rem; margin: 0.8rem 0 0; }
.rf-footer h3 { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary-on-dark); margin: 0 0 0.9rem; }
.rf-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.rf-footer a { color: var(--on-surface-2); text-decoration: none; font-size: 0.9rem; }
.rf-footer a:hover { text-decoration: underline; }
.rf-footer__note { margin-top: 2.25rem !important; padding-top: 1.4rem; border-top: 1px solid rgba(230, 243, 244, 0.22); font-size: 0.8125rem !important; }
@media (max-width: 820px) { .rf-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .rf-footer__grid { grid-template-columns: minmax(0, 1fr); } }