/* ============================================================
   AIOS Landing  -  Nexus Marine
   Style matched to nexusmarine.fr:
   dark editorial theme, near-black ground, warm cream text,
   Cormorant Garamond display serif, deep brick-red accent.
   ============================================================ */

:root {
  --bg:        #0A0A0A;   /* near-black base, from --bg on nexusmarine.fr */
  --bg-soft:   #0F0E0D;   /* warm near-black for alternating sections */
  --bg-ink:    #060606;   /* deepest panels: documents + footer */
  --card:      #161616;   /* card surface, from --card on the site */
  --card-soft: #121212;
  --text:      #ECE7DE;   /* warm cream, from --text on the site */
  --text-soft: #B8B0A4;
  --text-mute: #8A8078;   /* taupe, from --sec on the site */
  --accent:      #C0392B; /* brick red, from --red on the site */
  --accent-deep: #A52F23;
  --accent-bright:#D9503F;
  --accent-soft: rgba(192,57,43,0.13);
  --line:      #262220;   /* warm dark hairline */
  --line-soft: #1B1817;
  --font-disp: 'Cormorant Garamond', 'Cormorant', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1120px;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.62;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
::selection { background: var(--accent); color: #fff; }

/* ============================ NAV ============================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,0.82);
  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; }
.brand-azuro {
  font-weight: 700; letter-spacing: 0.04em; color: var(--text);
  font-size: 15px; text-transform: uppercase;
}
.brand-x { color: var(--text-mute); font-size: 14px; }
.brand-client {
  font-weight: 600; color: var(--text); font-size: 14px;
  letter-spacing: 0.12em; text-transform: uppercase;
}
.brand-client::before {
  content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); margin-right: 9px; 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-mute); font-size: 13px; font-weight: 500;
  letter-spacing: 0.04em; transition: color 0.15s;
}
.nav-link:hover { color: var(--text); }
.nav-cta {
  text-decoration: none; font-size: 13px; font-weight: 600; letter-spacing: 0.02em;
  background: var(--accent); color: #fff; padding: 10px 18px; border-radius: 999px;
  transition: background 0.15s, transform 0.15s;
}
.nav-cta:hover { background: var(--accent-bright); 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-sans); font-size: 15px; font-weight: 600; cursor: pointer;
  padding: 14px 28px; border-radius: 999px; text-decoration: none;
  border: 1.5px solid transparent; transition: all 0.16s; white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-bright); border-color: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 12px 30px -12px rgba(192,57,43,0.65); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--text-mute); background: rgba(255,255,255,0.02); }

/* ============================ LAYOUT ============================ */
main { display: block; }
.section { padding: 96px 32px; }
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section-inner.narrow { max-width: 820px; }
.section-soft { background: var(--bg-soft); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-eyebrow, .eyebrow {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--accent-bright); margin: 0 0 22px;
}
.section h2 {
  font-family: var(--font-disp);
  font-size: clamp(32px, 4.6vw, 52px); font-weight: 600; letter-spacing: 0.005em;
  line-height: 1.08; color: var(--text); margin: 0 0 28px; max-width: 20ch;
}
.section h2 em { font-style: italic; color: var(--accent-bright); }
.big { font-size: clamp(16.5px, 1.9vw, 19px); color: var(--text-soft); line-height: 1.68; margin: 0 0 18px; }
.big strong { color: var(--text); font-weight: 600; }

/* ============================ HERO ============================ */
.hero {
  position: relative; overflow: hidden;
  padding: 116px 32px 96px;
  background:
    radial-gradient(ellipse 70% 80% at 84% -16%, rgba(192,57,43,0.20), transparent 58%),
    radial-gradient(ellipse 60% 70% at 2% 4%, rgba(192,57,43,0.06), transparent 55%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; position: relative; z-index: 1; }
.hero h1 {
  font-family: var(--font-disp);
  font-size: clamp(44px, 7vw, 84px); font-weight: 600; letter-spacing: 0.005em;
  line-height: 1.02; color: var(--text); margin: 0 0 28px; max-width: 16ch;
}
.hero h1 em { font-style: italic; color: var(--accent-bright); }
.hero h1 .g { font-style: italic; color: var(--accent-bright); }
.lede { font-size: clamp(16.5px, 2vw, 20px); color: var(--text-soft); line-height: 1.64; max-width: 62ch; margin: 0 0 38px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 14px; color: var(--text-mute); }
.hero-meta strong { color: var(--text); font-weight: 600; }
.hero-meta .dot { color: var(--line); }

/* ============================ PITCH ============================ */
.section-pitch { padding-top: 92px; padding-bottom: 82px; }

/* ============================ GRIDS ============================ */
.grid { display: grid; gap: 20px; }
.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 (their priorities) */
.uc {
  background: var(--card); 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(--accent); transform: translateY(-3px); box-shadow: 0 22px 46px -28px rgba(0,0,0,0.8); }
.uc-tag {
  font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent-bright); margin: 0 0 16px;
}
.uc h3 { font-family: var(--font-disp); font-size: 25px; font-weight: 600; color: var(--text); margin: 0 0 13px; line-height: 1.22; letter-spacing: 0.005em; }
.uc p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.66; }
.uc p em { font-style: italic; color: var(--text); }

/* feature tiles */
.feature {
  padding: 28px 26px; border-radius: var(--radius); background: var(--card-soft);
  border: 1px solid var(--line-soft);
}
.feature-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft);
  color: var(--accent-bright); font-weight: 700; font-size: 15px; margin-bottom: 18px;
  font-family: var(--font-disp);
}
.feature h3 { font-family: var(--font-disp); font-size: 21px; font-weight: 600; color: var(--text); margin: 0 0 10px; letter-spacing: 0.005em; }
.feature p { margin: 0; color: var(--text-soft); font-size: 14.8px; line-height: 1.62; }

/* ============================ DIFFERENCE ============================ */
.diff-list { display: flex; flex-direction: column; }
.diff-row {
  display: grid; grid-template-columns: 250px 1fr; gap: 34px;
  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-disp); font-weight: 600; color: var(--text); font-size: 22px;
  letter-spacing: 0.005em; position: relative; padding-left: 22px; line-height: 1.2;
}
.diff-label::before {
  content: ""; position: absolute; left: 0; top: 11px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--accent);
}
.diff-body p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.68; }
.diff-body strong { color: var(--text); }
@media (max-width: 720px) { .diff-row { grid-template-columns: 1fr; gap: 12px; } }

/* ============================ 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-disp); font-size: 34px; font-weight: 600; color: var(--accent-bright); letter-spacing: 0; margin-bottom: 8px; }
.usage-step h3 { font-family: var(--font-disp); font-size: 22px; font-weight: 600; color: var(--text); margin: 0 0 10px; letter-spacing: 0.005em; }
.usage-step p { margin: 0; color: var(--text-soft); font-size: 15.5px; line-height: 1.66; }
.usage-step em { font-style: italic; color: var(--text); }

/* ============================ DOCUMENTS ============================ */
.section-sky { background: var(--bg-ink); border-top: 1px solid var(--line); }
.section-sky .section-eyebrow { color: var(--accent-bright); }
.section-sky h2 { color: var(--text); }
.section-sky h2 .g { color: var(--accent-bright); font-style: italic; }
.section-sky .big { color: var(--text-soft); }
.docs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 38px 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: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px; transition: border-color 0.18s, transform 0.18s, background 0.18s;
}
.doc-card:hover { border-color: var(--accent); transform: translateY(-3px); background: #1b1b1b; }
.doc-icon {
  flex: none; width: 46px; height: 46px; border-radius: 11px; background: var(--accent);
  color: #fff; font-weight: 700; font-size: 12px; letter-spacing: 0.04em;
  display: flex; align-items: center; justify-content: center;
}
.doc-body { flex: 1; min-width: 0; }
.doc-title { margin: 0 0 4px; font-family: var(--font-disp); font-weight: 600; color: var(--text); font-size: 19px; }
.doc-meta { margin: 0; color: var(--text-mute); font-size: 13.5px; line-height: 1.5; }
.doc-btn {
  flex: none; font-size: 12.5px; font-weight: 600; color: var(--accent-bright);
  border: 1.5px solid var(--line); border-radius: 999px; padding: 7px 16px; letter-spacing: 0.02em;
}
.doc-card:hover .doc-btn { border-color: var(--accent); }
.docs-note { color: var(--text-mute); font-size: 13px; margin: 14px 0 0; }

/* ============================ OFFER ============================ */
.section-offer { background: var(--bg-soft); border-top: 1px solid var(--line-soft); }
.offer-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 42px 40px; margin-top: 8px;
}
.offer-step { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.offer-step:first-child { padding-top: 0; }
.offer-step-num {
  flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--accent);
  color: #fff; font-weight: 700; font-size: 15px; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-disp);
}
.offer-step h3 { font-family: var(--font-disp); font-size: 22px; font-weight: 600; color: var(--text); margin: 3px 0 8px; letter-spacing: 0.005em; }
.offer-step p { margin: 0; color: var(--text-soft); font-size: 15px; line-height: 1.64; }
.offer-step strong { color: var(--text); font-weight: 600; }

.pricing { margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--accent); }
.pricing-amount { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.pricing-currency { font-family: var(--font-disp); font-size: 30px; font-weight: 600; color: var(--text); }
.pricing-number { font-family: var(--font-disp); font-size: 60px; font-weight: 600; color: var(--text); letter-spacing: 0; line-height: 1; }
.pricing-period { font-size: 15px; color: var(--text-mute); font-weight: 500; }
.pricing-includes { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 12px; }
.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: 3px; width: 19px; height: 19px;
  border-radius: 50%; background: var(--accent-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23D9503F' 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-tiers { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 6px 0 22px; }
@media (max-width: 560px) { .pricing-tiers { grid-template-columns: 1fr; } }
.tier {
  display: flex; flex-direction: column; gap: 6px;
  padding: 22px 22px; border-radius: var(--radius);
  background: var(--card-soft); border: 1px solid var(--line);
}
.tier-plus { border-color: rgba(192,57,43,0.45); background: var(--accent-soft); }
.tier-price { font-family: var(--font-disp); font-size: 33px; font-weight: 600; color: var(--text); line-height: 1; }
.tier-unit { font-family: var(--font-sans); font-size: 13px; font-weight: 500; color: var(--text-mute); }
.tier-label { font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-bright); margin-top: 6px; }
.tier-desc { font-size: 14px; color: var(--text-soft); line-height: 1.56; margin-top: 2px; }

.pricing-note { color: var(--text-mute); font-size: 13.5px; line-height: 1.6; margin: 0; }
.pricing-note strong { color: var(--text-soft); }

.offer-cta { margin-top: 36px; text-align: center; }
.offer-cta-prompt { font-size: 16px; color: var(--text); font-weight: 500; margin: 0 0 16px; }
.contact-card {
  display: inline-flex; align-items: center; gap: 12px; background: var(--card);
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 8px 8px 22px;
}
.contact-email { font-weight: 600; color: var(--text); text-decoration: none; font-size: 15px; }
.contact-copy {
  font-family: var(--font-sans); cursor: pointer; border: none; background: var(--accent); color: #fff;
  font-weight: 600; font-size: 13px; padding: 9px 16px; border-radius: 999px; transition: background 0.15s;
}
.contact-copy:hover { background: var(--accent-bright); }
.contact-copy.copied { background: #2f6b3a; 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 { margin: 32px 0 0; font-family: var(--font-disp); font-weight: 600; color: var(--text); font-size: 22px; line-height: 1.4; }
.signature span { display: block; font-family: var(--font-sans); font-weight: 400; color: var(--text-mute); font-size: 13.5px; margin-top: 4px; letter-spacing: 0.04em; }

.transcript-pointer { margin-top: 42px; }
.transcript-link {
  display: flex; align-items: center; gap: 16px; text-decoration: none;
  background: var(--card); 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(--accent); transform: translateY(-2px); }
.transcript-link-arrow { font-size: 22px; color: var(--accent-bright); font-weight: 600; }
.transcript-link-title { display: block; font-family: var(--font-disp); font-weight: 600; color: var(--text); font-size: 19px; }
.transcript-link-meta { display: block; color: var(--text-mute); font-size: 13.5px; margin-top: 2px; }

/* ============================ FOOTER ============================ */
.footer { background: var(--bg-ink); color: var(--text-mute); padding: 54px 32px; border-top: 1px solid var(--line); }
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between;
  gap: 30px; flex-wrap: wrap;
}
.footer .brand-azuro { color: var(--text); font-size: 16px; }
.footer-mini { color: var(--text-mute); font-size: 14px; max-width: 44ch; margin: 12px 0 0; line-height: 1.6; }
.footer-meta { text-align: right; font-size: 13.5px; color: var(--text-mute); line-height: 1.8; }
.footer-meta a { color: var(--accent-bright); text-decoration: none; }
@media (max-width: 640px) {
  .section { padding: 64px 20px; }
  .hero { padding: 78px 20px 60px; }
  .section-close { padding: 64px 20px 52px; }
  .footer-inner { flex-direction: column; }
  .footer-meta { text-align: left; }
  .offer-card { padding: 30px 22px; }
}