:root {
    --violet-900: #3d1f52;
    --violet-700: #572a74;
    --violet-500: #9677af;
    --violet-100: #f3ebf8;
    --ink: #1f1a24;
    --muted: #5f5768;
    --bg: #f7f5fa;
    --surface: #ffffff;
    --border: #e4dbeb;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(61, 31, 82, 0.08);
    --font: "DM Sans", system-ui, sans-serif;
    --font-display: "Caveat", cursive;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--violet-700); }
a:hover { color: var(--violet-500); }

.container { width: min(1100px, 92vw); margin-inline: auto; }
.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--violet-700); color: #fff; padding: .5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    position: relative;
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; padding: .85rem 0;
}
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; color: inherit; }
.brand-logo {
    width: 3.25rem; height: auto; flex-shrink: 0;
    border-radius: 8px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.brand-text strong { font-size: clamp(.88rem, 2.8vw, 1.05rem); }
.brand-text small { color: var(--muted); font-size: .82rem; }

.nav-toggle {
    display: none; flex-shrink: 0;
    border: 1px solid var(--violet-500); background: var(--violet-100);
    border-radius: 10px; padding: .55rem .9rem; font: inherit; font-weight: 700;
    color: var(--violet-900); cursor: pointer;
}
.nav-toggle[aria-expanded="true"] {
    background: var(--violet-700); color: #fff; border-color: var(--violet-700);
}
.site-nav ul {
    display: flex; flex-wrap: wrap; gap: .35rem 1rem;
    list-style: none; margin: 0; padding: 0;
}
.site-nav a {
    text-decoration: none; color: var(--violet-700);
    font-weight: 600; font-size: .95rem; padding: .35rem .2rem;
    border-bottom: 2px solid transparent;
}
.site-nav a.is-active,
.site-nav a:hover { border-bottom-color: var(--violet-500); }

.site-main { padding-bottom: 4rem; }

.hero {
    padding: 3rem 0 2rem;
    background:
        radial-gradient(circle at top right, rgba(150,119,175,.18), transparent 40%),
        linear-gradient(180deg, #fff, var(--bg));
}
.hero .container { display: flex; flex-direction: column; }
.hero-intro { max-width: 52ch; }
.hero h1 {
    font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; margin: 0 0 1rem;
    color: var(--violet-900);
}
.hero .lead { font-size: 1.1rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.hero-visuals {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    align-items: start;
    margin-bottom: 2rem;
}
.hero-figure {
    margin: 0;
    background: #f5f0e8;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.hero-figure img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: .7rem 1.1rem; border-radius: 999px; text-decoration: none;
    font-weight: 700; border: 1px solid transparent;
}
.btn-primary { background: var(--violet-700); color: #fff; }
.btn-primary:hover { background: var(--violet-900); color: #fff; }
.btn-secondary { background: #fff; border-color: var(--border); color: var(--violet-700); }

.section { padding: 2.5rem 0; }
.section h2 {
    font-size: 1.7rem; margin: 0 0 1rem; color: var(--violet-900);
}
.section-intro { color: var(--muted); max-width: 65ch; margin-bottom: 1.5rem; }

.cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem;
}
.card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow);
}
.card .tag {
    display: inline-block; font-size: .75rem; font-weight: 700;
    color: var(--violet-700); background: var(--violet-100);
    padding: .2rem .55rem; border-radius: 999px; margin-bottom: .6rem;
}
.card h3 { margin: 0 0 .5rem; font-size: 1.15rem; }
.card p { margin: 0 0 1rem; color: var(--muted); font-size: .95rem; }
.card a.stretched { font-weight: 700; text-decoration: none; }

.panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow);
}
.panel ul { padding-left: 1.2rem; }
.panel li + li { margin-top: .35rem; }

.cta-band {
    margin-top: 2rem; padding: 1.5rem;
    background: linear-gradient(135deg, var(--violet-700), var(--violet-500));
    color: #fff; border-radius: calc(var(--radius) + 4px);
}
.cta-band a { color: #fff; font-weight: 700; }

.page-header { padding: 2.2rem 0 1rem; }
.page-header h1 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.4rem); color: var(--violet-900); }
.page-header p { color: var(--muted); max-width: 60ch; }

/* Mini-illustrations discrètes (pages intérieures) */
.prose .mini-illu { margin-left: .35rem; }
.link-icon {
    display: inline-flex; vertical-align: middle; line-height: 0;
    margin-left: .25rem;
}
.link-icon:hover .mini-illu { opacity: .75; }
.mini-illu {
    display: inline-block; vertical-align: middle;
    max-height: 2.2rem; width: auto;
    border-radius: 4px; object-fit: contain;
    transition: opacity .15s ease;
}

.prose { max-width: 72ch; }
.prose p + p { margin-top: 1rem; }
.prose h2 { margin-top: 2rem; color: var(--violet-900); }

.link-groups { display: grid; gap: 1.5rem; }
.link-groups h2 { font-size: 1.2rem; margin-bottom: .6rem; }
.link-groups ul { list-style: none; padding: 0; margin: 0; }
.link-groups li + li { margin-top: .4rem; }
.link-groups .mini-illu { margin-left: .35rem; }

.contact-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem;
}

.project-page { display: grid; gap: 1rem; }
.project-footer {
    background: var(--violet-100);
    border-color: var(--violet-500);
}
.project-footer p { margin: 0; }
.prose ol { padding-left: 1.4rem; }
.prose ol li + li { margin-top: .4rem; }
.prose code.wallet {
    display: inline-block; word-break: break-all;
    font-size: .85rem; background: var(--violet-100);
    padding: .2rem .45rem; border-radius: 6px;
}
.don-wallet {
    display: flex; flex-wrap: wrap; align-items: flex-start; gap: 1.25rem;
    margin-top: 1rem; padding-top: 1rem;
    border-top: 1px solid var(--border);
}
.don-wallet:first-of-type { border-top: none; padding-top: 0; }
.don-qr {
    width: min(240px, 70vw); height: auto;
    border-radius: 10px; box-shadow: var(--shadow);
    background: #fff;
}

.site-footer {
    background: var(--violet-900); color: #f7f2fb;
    padding: 2.5rem 0 1rem; margin-top: 2rem;
}
.site-footer a { color: #fff; }
.site-footer h2 { font-size: 1rem; margin: 0 0 .6rem; }
.footer-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem;
}
.footer-bottom {
    margin-top: 1.5rem; padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,.15);
    font-size: .9rem; color: rgba(255,255,255,.75);
}

@media (max-width: 860px) {
    .brand-text small { display: none; }
    .nav-toggle { display: inline-flex; align-items: center; }
    .site-nav {
        position: absolute; left: 0; right: 0; top: 100%;
        display: none; background: #fff; border-bottom: 1px solid var(--border);
        padding: .5rem 4vw 1rem; box-shadow: var(--shadow); z-index: 60;
    }
    .site-nav.is-open { display: block; }
    .site-nav ul { flex-direction: column; gap: .2rem; }
    .site-nav a { display: block; padding: .55rem .2rem; }
    .hero-visuals { grid-template-columns: 1fr; }
}