/* chatbotgpt.net — magazine / éditorial autour de Chatbot GPT */
:root {
  --ink: #1d1a16;
  --ink-soft: #5c544a;
  --paper: #fbf7f0;
  --paper-2: #f3ece0;
  --line: #e4d9c7;
  --green: #1f6f4a;
  --green-dark: #155236;
  --terra: #d9653b;
  --radius: 6px;
  --max: 1100px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; font-size: 17px; line-height: 1.7; color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-underline-offset: 3px; }
a:hover { color: var(--terra); }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.15; margin: 0 0 .55em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 10; }

.site-header { position: sticky; top: 0; z-index: 5; background: rgba(251, 247, 240, .94); backdrop-filter: blur(8px); border-bottom: 2px solid var(--ink); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 70px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 700; font-size: 1.35rem; color: var(--ink); text-decoration: none; }
.logo .tld { color: var(--terra); font-style: italic; }
.nav { display: flex; gap: 6px 22px; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 600; font-size: .93rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--green); text-decoration: underline; text-decoration-thickness: 2px; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border-radius: var(--radius); font-weight: 700; text-decoration: none; border: 2px solid var(--ink); transition: transform .15s, box-shadow .15s; }
.btn-primary { background: var(--green); color: #fff; border-color: var(--green-dark); box-shadow: 4px 4px 0 var(--ink); }
.btn-primary:hover { color: #fff; transform: translate(-1px, -1px); box-shadow: 6px 6px 0 var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.nav .btn { padding: 8px 16px; color: #fff; box-shadow: 3px 3px 0 var(--ink); text-decoration: none; }
.nav .btn:hover { color: #fff; text-decoration: none; }

.hero { padding: 70px 0 60px; border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.kicker { display: inline-block; font-size: .8rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--terra); margin-bottom: 16px; }
.lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 34em; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.byline { margin-top: 22px; font-size: .9rem; color: var(--ink-soft); font-style: italic; }

section { padding: 76px 0; }
.alt { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 720px; margin: 0 0 40px; }
.section-head.center { margin: 0 auto 40px; text-align: center; }
.section-head p { color: var(--ink-soft); font-size: 1.08rem; }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card p { color: var(--ink-soft); margin: 0; }
.card h3 { margin-bottom: .4em; }
.icon { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: #e5f0e9; margin-bottom: 14px; }
.icon svg { width: 22px; height: 22px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: center; }

/* Numbered reasons */
.reasons { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.reasons li { display: grid; grid-template-columns: 70px 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid var(--line); }
.reasons li:last-child { border-bottom: 1px solid var(--line); }
.reasons .n { font-family: var(--serif); font-size: 2.6rem; line-height: 1; color: var(--terra); }
.reasons h3 { margin: 0 0 6px; }
.reasons p { margin: 0; color: var(--ink-soft); }

/* Pull quote */
.pull { font-family: var(--serif); font-size: clamp(1.5rem, 3.2vw, 2.2rem); line-height: 1.35; font-style: italic; text-align: center; max-width: 26ch; margin: 0 auto; }
.pull::before { content: "«\00a0"; color: var(--terra); }
.pull::after { content: "\00a0»"; color: var(--terra); }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); font-size: .97rem; }
th, td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--serif); background: var(--paper-2); }

/* Glossary */
.glossary dt { font-family: var(--serif); font-weight: 700; font-size: 1.25rem; margin-top: 26px; color: var(--green-dark); }
.glossary dd { margin: 6px 0 0; color: var(--ink-soft); border-left: 3px solid var(--terra); padding-left: 16px; }
.letters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.letters a { font-family: var(--serif); font-weight: 700; text-decoration: none; border: 1px solid var(--line); background: #fff; padding: 4px 10px; border-radius: 4px; }

/* Reviews */
.review { margin: 0; display: flex; flex-direction: column; gap: 14px; }
.review blockquote { margin: 0; font-family: var(--serif); font-size: 1.12rem; font-style: italic; }
.review footer { margin-top: auto; font-size: .9rem; color: var(--ink-soft); }
.review footer b { color: var(--ink); font-style: normal; }
.disclaimer { color: var(--ink-soft); font-size: .85rem; margin-top: 16px; }

/* FAQ */
.faq details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq details:last-of-type { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-family: var(--serif); font-weight: 700; font-size: 1.15rem; list-style: none; position: relative; padding-right: 30px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: -4px; font-size: 1.5rem; color: var(--terra); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 0; color: var(--ink-soft); }

.note { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--green); padding: 18px 20px; border-radius: var(--radius); color: var(--ink-soft); }
.note strong { color: var(--ink); }

.cta { background: var(--green); color: #fff; padding: 56px 36px; border-radius: var(--radius); border: 2px solid var(--ink); box-shadow: 8px 8px 0 var(--ink); text-align: center; }
.cta h2 { color: #fff; }
.cta p { color: #dbeee3; max-width: 620px; margin: 0 auto 24px; }
.cta .btn-primary { background: #fff; color: var(--green-dark); border-color: var(--ink); }
.cta .btn-primary:hover { color: var(--green-dark); }

.page-hero { padding: 60px 0 24px; border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: .88rem; color: var(--ink-soft); margin-bottom: 12px; }
.breadcrumb a { color: var(--ink-soft); }
.prose { max-width: 740px; }
.prose h2 { margin-top: 1.4em; font-size: 1.7rem; }
.prose p, .prose li { color: var(--ink-soft); }
.prose strong { color: var(--ink); }

.site-footer { background: var(--ink); color: #c9bfb0; padding: 52px 0 28px; font-size: .95rem; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { color: #f3b39a; }
.site-footer .logo { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 30px; margin-bottom: 26px; }
.footer-grid h4 { color: #fff; margin: 0 0 12px; font-family: var(--serif); font-size: 1.1rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-disclaimer { font-size: .85rem; border-top: 1px solid rgba(255, 255, 255, .15); padding-top: 18px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .85rem; }

@media (max-width: 920px) {
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 36px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 54px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .reasons li { grid-template-columns: 48px 1fr; }
  .cta { padding: 40px 20px; box-shadow: 5px 5px 0 var(--ink); }
  .nav .btn { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }