@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@700;800&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #F5F7F8;
  --surface: #FFFFFF;
  --surface-2: #ECF1F3;
  --border: #DCE4E8;
  --ink: #182028;
  --ink-soft: #47565F;
  --ink-faint: #7C8B93;
  --accent: #007A9E;
  --accent-bright: #00AEEF;
  --accent-ink: #FFFFFF;
  --warn: #A2650C;
  --warn-bg: #FBF0DD;
  --warn-border: #E0A800;
  --ad-bg: #ECEEF0;
  --ad-border: #C7D0D5;
  --ad-text: #8B98A0;
  --mono: "IBM Plex Mono", "SF Mono", Consolas, monospace;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Archivo", "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12181C;
    --surface: #1A2227;
    --surface-2: #212B31;
    --border: #2E3A41;
    --ink: #E9EFF2;
    --ink-soft: #AFC0C8;
    --ink-faint: #7E939D;
    --accent: #4FC3E8;
    --accent-bright: #29C2FF;
    --accent-ink: #06222E;
    --warn: #E8AC4C;
    --warn-bg: #33270D;
    --warn-border: #8A6413;
    --ad-bg: #202A30;
    --ad-border: #33424A;
    --ad-text: #7E939D;
  }
}
:root[data-theme="dark"] {
  --bg: #12181C;
  --surface: #1A2227;
  --surface-2: #212B31;
  --border: #2E3A41;
  --ink: #E9EFF2;
  --ink-soft: #AFC0C8;
  --ink-faint: #7E939D;
  --accent: #4FC3E8;
  --accent-bright: #29C2FF;
  --accent-ink: #06222E;
  --warn: #E8AC4C;
  --warn-bg: #33270D;
  --warn-border: #8A6413;
  --ad-bg: #202A30;
  --ad-border: #33424A;
  --ad-text: #7E939D;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.7;
}

h1, h2, h3, .eyebrow, .btn, .faq summary {
  font-family: var(--sans);
}

.wrap {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

header.article-head {
  padding-top: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.breadcrumb {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 4px 10px;
  border-radius: 5px;
  margin-bottom: 16px;
}

h1.title {
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--ink);
  text-wrap: balance;
  margin: 0 0 16px;
}

.meta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
}

.lead {
  font-size: 21px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

article h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--ink);
  margin: 48px 0 16px;
}

article p { margin: 0 0 18px; }

article ul, article ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
article li { margin-bottom: 10px; }
article li strong { color: var(--ink); }

figure { margin: 32px 0; }
figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--border);
}
figcaption {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-faint);
  margin-top: 10px;
  line-height: 1.5;
}
figcaption .credit { font-family: var(--mono); font-size: 11px; }

.safety-note {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 8px 0 18px;
}
.safety-note .kicker {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warn);
  margin-bottom: 8px;
}
.safety-note p { margin: 0; color: var(--ink); font-size: 16px; }

.ad-slot {
  margin: 40px 0;
  padding: 22px;
  background: var(--ad-bg);
  border: 1px dashed var(--ad-border);
  border-radius: 10px;
  text-align: center;
  font-family: var(--sans);
}
.ad-slot .ad-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ad-text);
  margin-bottom: 6px;
}
.ad-slot .ad-placeholder { font-size: 13px; color: var(--ad-text); }

.solution-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 24px;
  margin: 32px 0;
}
.solution-box h2 { margin-top: 0; font-size: 20px; }
.solution-box p { color: var(--ink-soft); }

.faq { margin-top: 48px; }
.faq h2 { margin-bottom: 20px; }
.faq details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.faq summary {
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--accent);
  font-size: 20px;
  flex-shrink: 0;
}
.faq details[open] summary::after { content: "\2212"; }
.faq p { margin-top: 12px; color: var(--ink-soft); font-size: 16px; }

.cta {
  margin-top: 48px;
  padding: 28px;
  background: var(--accent);
  border-radius: 12px;
  text-align: center;
}
.cta p {
  font-family: var(--sans);
  color: var(--accent-ink);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 16px;
}
.btn {
  display: inline-block;
  background: var(--accent-ink);
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
}

.ad-notice {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-faint);
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.ad-notice .tdx-heart {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Popup de notice publicitaire (10s, une seule fois) */
.tdx-ad-popup {
  position: fixed;
  top: 96px;
  right: 20px;
  z-index: 9998;
  width: min(300px, calc(100vw - 40px));
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.14);
  padding: 16px;
  font-family: var(--sans);
  animation: tdx-popup-in 0.35s ease-out;
}
.tdx-ad-popup-hide {
  animation: tdx-popup-out 0.3s ease-in forwards;
}
@keyframes tdx-popup-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes tdx-popup-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-8px); }
}
.tdx-ad-popup-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.tdx-ring-progress {
  animation: tdx-countdown 10s linear forwards;
}
@keyframes tdx-countdown {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: 75.4; }
}
.tdx-ad-popup-text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.tdx-ad-popup-btn {
  display: block;
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}
.tdx-ad-popup-btn:hover { opacity: 0.9; }

@media (max-width: 480px) {
  .tdx-ad-popup { top: auto; bottom: 20px; right: 20px; left: 20px; width: auto; }
}

footer.article-foot {
  margin-top: 20px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-faint);
}
footer.article-foot a { color: var(--accent); text-decoration: none; }
footer.article-foot a:hover { text-decoration: underline; }

/* Page d'index du blog */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.post-list a {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
}
.post-list a:hover { color: var(--accent); }
.post-list .excerpt {
  font-family: var(--serif);
  color: var(--ink-soft);
  margin-top: 8px;
  font-size: 16px;
}

@media (max-width: 480px) {
  body { font-size: 17px; }
  .lead { font-size: 19px; }
}