/* ============================================================
   OASA brand layer — shared across every page.
   Colours come from theme.js (CSS variables set on :root).
   One typeface: Barlow. Titles are Barlow Black (900).
   ============================================================ */

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    background: var(--neutral-light, #fcfcfc);
    color: var(--foreground, #10201a);
    font-family: var(--font, Barlow, sans-serif);
}

/* Display type */
.font-display {
    font-family: var(--font, Barlow, sans-serif);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.02;
}
.font-display em, .font-display i { font-style: italic; }
h1, h2, h3, h4 { font-family: var(--font, Barlow, sans-serif); }

/* ------------------------------------------------------------ Components */

.eyebrow {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-text);
}
.eyebrow--on-dark { color: var(--accent); }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 13px;
    line-height: 1.3;
    background: #fff;
    border: 1px solid var(--accent-medium);
    border-radius: 9999px;
    padding: 0.5rem 1.125rem;
    color: var(--foreground);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    transition: border-color .2s ease;
}
.pill:hover { border-color: var(--accent); }
.pill b { color: var(--accent-text); font-weight: 700; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.95rem 1.9rem;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
    white-space: nowrap;
    transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
    cursor: pointer;
    border: 1px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn--sm { padding: 0.65rem 1.25rem; font-size: 14px; }
.btn--lg { padding: 1.1rem 2.25rem; font-size: 16px; }
.btn-accent { background: var(--accent); color: var(--accent-foreground); box-shadow: var(--shadow-accent, 0 6px 20px rgba(62, 224, 143, 0.35)); }
.btn-accent:hover { background: var(--accent-dark); }
.btn-outline { background: #fff; border-color: var(--accent-medium); color: var(--accent-text); }
.btn-outline:hover { border-color: var(--accent); }
.btn-dark { background: var(--foreground-dark); color: #fff; }
.btn-dark:hover { background: var(--foreground); }
.btn-ghost-light { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.25); color: #fff; }
.btn-ghost-light:hover { background: rgba(255,255,255,0.16); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.card {
    background: #fff;
    border: 1px solid var(--accent-medium);
    border-radius: 22px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card--hover:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08); }
.card--earth { background: var(--earth-light); border-color: var(--earth-medium); }
.card--neutral { background: var(--neutral); border-color: var(--neutral-dark); }
.card--dark { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.18); }

.input {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--accent-medium);
    border-radius: 0.75rem;
    background: #fff;
    color: var(--foreground);
    font-family: inherit;
    font-size: 15px;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.input::placeholder { color: rgba(0,0,0,0.35); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

.hero-glow {
    background:
        radial-gradient(circle 700px at 50% -220px, var(--accent-light), transparent),
        radial-gradient(circle 520px at 88% 30%, var(--accent-light), transparent);
}
.cta-glow { background: radial-gradient(circle 600px at 50% 130%, var(--accent-light), transparent); }

.marquee {
    background: var(--accent);
    color: var(--accent-foreground);
    overflow: hidden;
    white-space: nowrap;
    font-weight: 700;
    font-size: 13.5px;
    letter-spacing: 0.06em;
    padding: 0.75rem 0;
}
.marquee__track { display: inline-flex; width: max-content; }
.marquee__track span { padding-right: 3rem; }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none !important; } }

.list-arrow li, .list-x li, .list-plus li { position: relative; padding-left: 1.6rem; }
.list-arrow li::before { content: '→'; position: absolute; left: 0; color: var(--accent-text); font-weight: 700; }
.list-plus li::before { content: '+'; position: absolute; left: 0.15rem; color: var(--accent-text); font-weight: 700; }
.list-x li::before { content: '✕'; position: absolute; left: 0.1rem; top: 0.15rem; color: var(--failure); font-weight: 700; font-size: 0.8em; }
.on-dark .list-arrow li::before, .on-dark .list-plus li::before { color: var(--accent); }

/* FAQ accordion */
.faq details { border-bottom: 1px solid var(--accent-medium); }
.faq summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 0;
    font-weight: 700;
    font-size: 16.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--accent-text); font-size: 1.5rem; font-weight: 400; transition: transform .2s ease; flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 1.25rem; color: var(--muted); font-size: 15px; line-height: 1.65; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* Header */
#site-header { background: rgba(255,255,255,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
#site-header nav a { transition: color .15s ease; }
#site-header nav a:hover, #site-header nav a[aria-current="page"] { color: var(--accent-text); }
#mobile-nav a { display: block; padding: 0.6rem 0; }

/* Steps (funnel) */
.step-badge {
    position: absolute;
    top: -1rem;
    left: 1.75rem;
    background: var(--accent);
    color: var(--accent-foreground);
    border-radius: 9999px;
    padding: 0.25rem 1rem;
    font-weight: 700;
    font-size: 13.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

/* Form feedback */
.form-msg { border-radius: 0.75rem; padding: 1rem; text-align: center; font-size: 14px; }
.form-msg--ok { background: var(--accent-light); color: var(--accent-text); border: 1px solid var(--accent-medium); }
.form-msg--err { background: #FDECEC; color: #9F1F42; border: 1px solid #F5C2C7; }

/* Numbers */
.stat { font-weight: 900; font-size: 2.25rem; line-height: 1; letter-spacing: -0.02em; color: var(--accent-text); }
.stat-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-top: 0.4rem; }

/* Milestone track (road to 100,000 ha) */
.track { position: relative; height: 10px; border-radius: 9999px; background: var(--accent-light); }
.track__fill { position: absolute; inset: 0 auto 0 0; border-radius: 9999px; background: var(--accent); }
.track__dot { position: absolute; top: 50%; width: 18px; height: 18px; border-radius: 9999px; transform: translate(-50%, -50%); background: #fff; border: 4px solid var(--accent); }
.track__dot--todo { border-color: var(--accent-medium); }