/* ============================================================
   AIOS Landing  -  Hémistiches
   Style aligné sur hemistiches.com : fond blanc, encre quasi noire,
   accent terracotta #DE5021 (couleur d'action du site), typographie
   géométrique en titres (Futura / Jost) et humaniste en texte
   (Avenir / Nunito Sans), angles nets, beaucoup d'air.
   ============================================================ */

:root {
  --bg:        #ffffff;
  --bg-soft:   #f7f5f4;
  --bg-ink:    #2f2e2e;   /* encre du site, utilisée en sections sombres */
  --navy:      #2f2e2e;
  --text:      #3b3a3a;
  --text-soft: #605e5e;
  --text-mute: #8a8888;
  --amber:     #de5021;   /* accent terracotta de hemistiches.com */
  --amber-deep:#b43c15;
  --amber-soft:#fbeee9;
  --amber-on-dark: #f0764a;  /* même accent éclairci pour le texte sur fond encre */
  --blue:      #2b6ca3;
  --line:      #e6e2e0;
  --line-soft: #f1eeec;
  --font-sans: 'Nunito Sans', 'Avenir Next', Avenir, -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-head: 'Jost', Futura, 'Century Gothic', 'Nunito Sans', Helvetica, Arial, sans-serif;
  --maxw: 1120px;
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.65;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--font-head); }

/* ============================ NAV ============================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.9);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-azuro {
  font-family: var(--font-head);
  font-weight: 600; letter-spacing: 0.02em; color: var(--navy); font-size: 17px;
}
.brand-x { color: var(--text-mute); font-size: 15px; }
.brand-client {
  font-family: var(--font-head);
  font-weight: 500; color: var(--navy); font-size: 16px; letter-spacing: 0.04em;
}
.brand-client::before {
  content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--amber); margin-right: 8px; vertical-align: middle;
}
.brand-logo { height: 26px; width: auto; }
.nav-right { display: flex; align-items: center; gap: 26px; }
.nav-link {
  text-decoration: none; color: var(--text-soft); font-size: 14px; font-weight: 600;
  transition: color 0.15s;
}
.nav-link:hover { color: var(--amber); }
.nav-cta {
  font-family: var(--font-head);
  text-decoration: none; font-size: 14px; font-weight: 500; letter-spacing: 0.02em;
  background: var(--navy); color: #fff; padding: 11px 20px; border-radius: var(--radius);
  transition: background 0.15s, transform 0.15s;
}
.nav-cta:hover { background: var(--amber); transform: translateY(-1px); }
@media (max-width: 720px) {
  .nav-inner { padding: 13px 18px; }
  .nav-link { display: none; }
}

/* ============================ BUTTONS ============================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-size: 15px; font-weight: 500; letter-spacing: 0.02em;
  cursor: pointer;
  padding: 15px 28px; border-radius: var(--radius); text-decoration: none;
  border: 1.5px solid transparent; transition: all 0.16s; white-space: nowrap;
}
.btn-primary { background: var(--amber); color: #fff; border-color: var(--amber); }
.btn-primary:hover { background: var(--amber-deep); border-color: var(--amber-deep); transform: translateY(-2px); box-shadow: 0 10px 26px -10px rgba(222,80,33,0.55); }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--navy); background: var(--bg-soft); }

/* ============================ LAYOUT ============================ */
main { display: block; }
.section { padding: 96px 32px; }
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section-inner.narrow { max-width: 800px; }
.section-soft { background: var(--bg-soft); }
.section-eyebrow, .eyebrow {
  font-family: var(--font-head);
  font-size: 12px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--amber); margin: 0 0 18px;
}
.section h2 {
  font-size: clamp(26px, 3.4vw, 40px); font-weight: 500; letter-spacing: -0.005em;
  line-height: 1.18; color: var(--navy); margin: 0 0 28px; max-width: 24ch;
}
.section h2 em { font-style: normal; color: var(--amber); }
.big { font-size: clamp(17px, 2vw, 19.5px); color: var(--text-soft); line-height: 1.7; margin: 0 0 18px; }
.big strong { color: var(--navy); font-weight: 700; }

/* ============================ HERO ============================ */
.hero {
  padding: 104px 32px 88px;
  background:
    radial-gradient(ellipse 60% 70% at 88% -10%, rgba(222,80,33,0.10), transparent 60%),
    radial-gradient(ellipse 50% 60% at 0% 0%, rgba(47,46,46,0.05), transparent 55%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; }
.hero h1 {
  font-size: clamp(36px, 5.6vw, 64px); font-weight: 400; letter-spacing: -0.01em;
  line-height: 1.12; color: var(--navy); margin: 0 0 26px; max-width: 18ch;
}
.hero h1 em { font-style: normal; color: var(--amber); }
.hero h1 .g { color: var(--amber); font-weight: 500; }
.lede { font-size: clamp(17px, 2vw, 19.5px); color: var(--text-soft); line-height: 1.68; max-width: 62ch; margin: 0 0 36px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 14.5px; color: var(--text-mute); }
.hero-meta strong { color: var(--navy); font-weight: 700; }
.hero-meta .dot { color: var(--line); }

/* ============================ PITCH ============================ */
.section-pitch { padding-top: 88px; padding-bottom: 78px; }
.pull-quote {
  border-left: 3px solid var(--amber); padding: 4px 0 4px 24px; margin: 30px 0 0;
  font-family: var(--font-head); font-size: clamp(18px, 2.2vw, 22px); font-weight: 300;
  line-height: 1.5; color: var(--navy);
}
.pull-quote span { display: block; font-family: var(--font-sans); font-size: 14px; font-weight: 600; color: var(--text-mute); margin-top: 12px; letter-spacing: 0.02em; }

/* ============================ GRIDS ============================ */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 880px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* use-case cards (ses sujets) */
.uc {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 30px; transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.uc:hover { border-color: var(--amber); transform: translateY(-3px); box-shadow: 0 18px 40px -26px rgba(47,46,46,0.35); }
.uc-tag {
  font-family: var(--font-head);
  font-size: 12.5px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--amber); margin: 0 0 14px;
}
.uc h3 { font-size: 19.5px; font-weight: 500; color: var(--navy); margin: 0 0 12px; line-height: 1.32; }
.uc p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.68; }
.uc p em { font-style: normal; color: var(--navy); font-weight: 700; }

/* feature tiles */
.feature {
  padding: 28px 26px; border-radius: var(--radius); background: #fff;
  border: 1px solid var(--line-soft);
}
.feature-num {
  font-family: var(--font-head);
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 2px; background: var(--amber-soft);
  color: var(--amber-deep); font-weight: 600; font-size: 15px; margin-bottom: 16px;
}
.feature h3 { font-size: 17.5px; font-weight: 500; color: var(--navy); margin: 0 0 9px; }
.feature p { margin: 0; color: var(--text-soft); font-size: 14.8px; line-height: 1.65; }

/* ============================ DIFFERENCE ============================ */
.diff-list { display: flex; flex-direction: column; }
.diff-row {
  display: grid; grid-template-columns: 230px 1fr; gap: 30px;
  padding: 28px 0; border-top: 1px solid var(--line);
}
.diff-row:last-child { border-bottom: 1px solid var(--line); }
.diff-label {
  font-family: var(--font-head);
  font-weight: 500; color: var(--navy); font-size: 17px; letter-spacing: 0.01em;
  position: relative; padding-left: 20px;
}
.diff-label::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px;
  background: var(--amber);
}
.diff-body p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.7; }
.diff-body strong { color: var(--navy); }
@media (max-width: 720px) { .diff-row { grid-template-columns: 1fr; gap: 10px; } }

/* ============================ USAGE ============================ */
.usage-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
@media (max-width: 720px) { .usage-grid { grid-template-columns: 1fr; } }
.usage-step { padding-left: 4px; }
.usage-num { font-family: var(--font-head); font-size: 28px; font-weight: 400; color: var(--amber); letter-spacing: 0.01em; margin-bottom: 8px; }
.usage-step h3 { font-size: 18px; font-weight: 500; color: var(--navy); margin: 0 0 9px; }
.usage-step p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.68; }
.usage-step em { font-style: italic; color: var(--navy); }

/* ============================ DOCUMENTS ============================ */
.section-sky { background: var(--bg-ink); }
.section-sky .section-eyebrow { color: var(--amber-on-dark); }
.section-sky h2 { color: #fff; }
.section-sky h2 .g { color: var(--amber-on-dark); -webkit-text-fill-color: var(--amber-on-dark); }
.section-sky .big { color: #c9c4c1; }
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 36px 0 16px; }
@media (max-width: 720px) { .docs-grid { grid-template-columns: 1fr; } }
.doc-card {
  display: flex; align-items: center; gap: 18px; text-decoration: none;
  background: #3a3837; border: 1px solid #4b4746; border-radius: var(--radius);
  padding: 22px 22px; transition: border-color 0.18s, transform 0.18s, background 0.18s;
}
.doc-card:hover { border-color: var(--amber); transform: translateY(-3px); background: #454241; }
.doc-icon {
  font-family: var(--font-head);
  flex: none; width: 46px; height: 46px; border-radius: 2px; background: var(--amber);
  color: #fff; font-weight: 600; font-size: 12px; letter-spacing: 0.06em;
  display: flex; align-items: center; justify-content: center;
}
.doc-body { flex: 1; min-width: 0; }
.doc-title { margin: 0 0 4px; font-weight: 700; color: #fff; font-size: 16px; }
.doc-meta { margin: 0; color: #b0aaa7; font-size: 13.5px; line-height: 1.45; }
.doc-btn {
  flex: none; font-size: 13px; font-weight: 700; color: var(--amber-on-dark);
  border: 1.5px solid #5a5554; border-radius: var(--radius); padding: 7px 15px;
}
.doc-card:hover .doc-btn { border-color: var(--amber); }
.docs-note { color: #948e8b; font-size: 13px; margin: 14px 0 0; }
.docs-legal { color: #b0aaa7; font-size: 14px; line-height: 1.75; margin: 8px 0 0; }
.docs-legal a { color: var(--amber-on-dark); text-decoration: none; font-weight: 600; }
.docs-legal a:hover { text-decoration: underline; }

/* ============================ OFFER ============================ */
.section-offer { background: var(--bg-soft); }
.offer-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 42px 40px; margin-top: 8px;
}
.offer-step { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.offer-step:first-child { padding-top: 0; }
.offer-step-num {
  font-family: var(--font-head);
  flex: none; width: 34px; height: 34px; border-radius: 50%; background: var(--navy);
  color: #fff; font-weight: 500; font-size: 15px; display: flex; align-items: center; justify-content: center;
}
.offer-step h3 { font-size: 17.5px; font-weight: 500; color: var(--navy); margin: 4px 0 7px; }
.offer-step p { margin: 0; color: var(--text-soft); font-size: 15px; line-height: 1.68; }

.pricing { margin-top: 32px; padding-top: 32px; border-top: 2px solid var(--navy); }
.pricing-amount { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; margin-bottom: 22px; }
.pricing-currency { font-family: var(--font-head); font-size: 26px; font-weight: 400; color: var(--navy); }
.pricing-number { font-family: var(--font-head); font-size: 52px; font-weight: 400; color: var(--navy); letter-spacing: -0.01em; line-height: 1; }
.pricing-period { font-size: 15px; color: var(--text-mute); font-weight: 600; }
.pricing-includes { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 11px; }
.pricing-includes li { position: relative; padding-left: 30px; color: var(--text-soft); font-size: 15.5px; }
.pricing-includes li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 19px; height: 19px;
  border-radius: 50%; background: var(--amber-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23b43c15' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 12px; background-repeat: no-repeat; background-position: center;
}
.pricing-note { color: var(--text-mute); font-size: 13.5px; line-height: 1.6; margin: 0; }

.offer-cta { margin-top: 34px; text-align: center; }
.offer-cta-prompt { font-size: 16px; color: var(--navy); font-weight: 600; margin: 0 0 16px; }
.contact-card {
  display: inline-flex; align-items: center; gap: 12px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 8px 8px 20px;
}
.contact-email { font-weight: 700; color: var(--navy); text-decoration: none; font-size: 15.5px; }
.contact-copy {
  font-family: var(--font-head); cursor: pointer; border: none; background: var(--navy); color: #fff;
  font-weight: 500; font-size: 13px; padding: 10px 17px; border-radius: var(--radius); transition: background 0.15s;
}
.contact-copy:hover { background: var(--amber); }
.contact-copy.copied { background: var(--amber); color: #fff; }
.offer-cta-note { color: var(--text-mute); font-size: 13.5px; margin: 16px 0 0; }

/* ============================ CLOSE ============================ */
.section-close { padding: 92px 32px 74px; }
.signature { font-family: var(--font-head); margin: 30px 0 0; font-weight: 500; color: var(--navy); font-size: 17px; line-height: 1.5; }
.signature span { display: block; font-family: var(--font-sans); font-weight: 500; color: var(--text-mute); font-size: 14px; margin-top: 3px; }

.transcript-pointer { margin-top: 40px; }
.transcript-link {
  display: flex; align-items: center; gap: 16px; text-decoration: none;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; transition: border-color 0.18s, transform 0.18s;
}
.transcript-link:hover { border-color: var(--amber); transform: translateY(-2px); }
.transcript-link-arrow { font-size: 22px; color: var(--amber); font-weight: 700; }
.transcript-link-title { display: block; font-family: var(--font-head); font-weight: 500; color: var(--navy); font-size: 16.5px; }
.transcript-link-meta { display: block; color: var(--text-mute); font-size: 13.5px; margin-top: 2px; }

/* ============================ FOOTER ============================ */
.footer { background: var(--bg-ink); color: #c9c4c1; padding: 56px 32px; }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between;
  gap: 30px; flex-wrap: wrap;
}
.footer .brand-azuro { color: #fff; font-size: 18px; }
.footer-mini { color: #a39d9a; font-size: 14px; max-width: 42ch; margin: 10px 0 0; line-height: 1.6; }
.footer-meta { text-align: right; font-size: 13.5px; color: #a39d9a; line-height: 1.75; }
.footer-meta a { color: var(--amber-on-dark); text-decoration: none; }
@media (max-width: 640px) {
  .section { padding: 62px 20px; }
  .hero { padding: 68px 20px 58px; }
  .section-close { padding: 62px 20px 52px; }
  .footer-inner { flex-direction: column; }
  .footer-meta { text-align: left; }
  .offer-card { padding: 30px 24px; }
}