/* Page d'accueil : mêmes jetons que l'application (theme.css). */
:root { font-family: var(--font); color: var(--text); background: var(--bg); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.55; -webkit-font-smoothing: antialiased; background: var(--bg); color: var(--text); }
h1, h2, h3 { margin: 0 0 .5rem; line-height: 1.2; color: var(--text); letter-spacing: -.02em; }
a { color: var(--brand-text); }
.muted { color: var(--muted); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.site-header { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: .5rem 1rem; flex-wrap: wrap; padding: .8rem 1.5rem; background: var(--sidebar-bg); border-bottom: 3px solid var(--accent); }
.logo { white-space: nowrap; font-weight: 700; font-size: 1.2rem; text-decoration: none; color: var(--sidebar-strong); }
.site-header nav { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.site-header nav a:not(.btn) { color: var(--sidebar-ink); text-decoration: none; transition: color .15s; }
.site-header nav a:not(.btn):hover { color: var(--accent); }

.btn { display: inline-block; padding: .6rem 1.2rem; border: 1px solid var(--border-strong); border-radius: var(--radius); text-decoration: none; color: var(--text); background: var(--surface); font-weight: 600; transition: transform .15s, box-shadow .15s, background .15s; }
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.primary:hover { background: var(--brand-hover); }
.site-header .btn:not(.primary) { background: transparent; color: var(--sidebar-strong); border-color: var(--sidebar-line); }

.hero { text-align: center; padding: 5rem 1.5rem 4rem; color: #fff; background: radial-gradient(circle at 80% 0, rgb(16 185 129 / 22%), transparent 45%), radial-gradient(circle at 10% 100%, rgb(99 102 241 / 35%), transparent 50%), var(--sidebar-bg); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); max-width: 20ch; margin: 0 auto 1rem; color: #fff; }
.lead { max-width: 46rem; margin: 0 auto 1.75rem; font-size: 1.12rem; color: var(--sidebar-ink); }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; margin: 0 0 .75rem; }
.cta { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
.hero .btn:not(.primary) { background: transparent; color: #fff; border-color: var(--sidebar-line); }

.demo { max-width: 24rem; margin: 3rem auto 0; text-align: left; background: var(--surface); color: var(--text); border-radius: var(--radius-lg); padding: 1.1rem 1.3rem; box-shadow: var(--shadow-lg); }
.demo-title { font-weight: 700; display: flex; justify-content: space-between; margin: 0 0 .25rem; color: var(--text); }
.demo .dot { font-weight: 400; font-size: .8rem; color: var(--ok-ink); }
.demo p { margin: 0 0 .5rem; color: var(--muted); }
.demo ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.demo li { display: flex; justify-content: space-between; background: var(--surface-2); border-radius: var(--radius-sm); padding: .5rem .75rem; border-left: 3px solid var(--accent); }

.section { padding: 4.5rem 1.5rem; max-width: 70rem; margin: 0 auto; text-align: center; }
.section.alt { max-width: none; background: var(--surface-2); }
.section.alt > * { max-width: 70rem; margin-left: auto; margin-right: auto; }
.section h2 { font-size: 2rem; }
.sub { color: var(--muted); max-width: 40rem; margin: 0 auto 2.25rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr)); gap: 1.25rem; text-align: left; }
.feature, .plan { background: var(--surface); border: 1px solid var(--border); border-top: 3px solid var(--accent); border-radius: var(--radius); padding: 1.4rem; transition: transform .2s, box-shadow .2s; }
.feature:hover, .plan:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.feature h3 { font-size: 1.05rem; }
.feature p { margin: 0; color: var(--muted); }
.plan { display: grid; gap: .75rem; align-content: start; }
.plan.popular { border-color: var(--brand); border-top-color: var(--brand); box-shadow: var(--shadow); }
.plan .size { color: var(--brand-text); font-weight: 700; margin: 0; }
.plan ul { margin: 0; padding-left: 1.2rem; color: var(--muted); }
.plan .btn { text-align: center; }

.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(14rem, 100%), 1fr)); gap: 1.25rem; text-align: left; }
.steps li { counter-increment: step; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem; }
.steps li::before { content: counter(step); display: inline-grid; place-items: center; width: 2.1rem; height: 2.1rem; border-radius: 50%; background: var(--grad); color: #fff; font-weight: 700; margin-bottom: .6rem; }
.steps p { margin: 0; color: var(--muted); }

.contact { max-width: 44rem; }
.site-footer { text-align: center; padding: 1.75rem; color: var(--sidebar-muted); background: var(--sidebar-bg); }
.site-footer a { color: var(--accent); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }