/* ============================
   AIOS Landing  -  Benjamin Pujol
   Dark premium, lawyer-friendly
   ============================ */

:root {
  --ink:         #0a0c10;
  --ink-2:       #11141a;
  --ink-3:       #161a22;
  --line:        #232833;
  --line-soft:   #1c2029;
  --text:        #e7e9ee;
  --text-soft:   #b5b9c4;
  --text-mute:   #7a808d;
  --accent:      #c9a872;
  --accent-soft: #d8bf90;
  --accent-deep: #8a6f3f;
  --paper:       #f6f3ed;
  --paper-ink:   #1a1c22;

  --maxw: 1140px;
  --maxw-narrow: 780px;
  --radius: 4px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Cormorant Garamond", "Times New Roman", Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent-soft); }

/* ============================ NAV ============================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.01em;
  color: var(--text);
}
.brand-mark { color: var(--text); }
.brand-sep  { color: var(--accent); margin: 0 6px; font-weight: 400; }
.brand-tag  { color: var(--text-soft); font-style: italic; font-size: 18px; }
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-soft);
  transition: color 0.15s;
}
.nav-link:hover { color: var(--accent); }
.nav-cta {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 11px 22px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius);
  transition: all 0.18s ease;
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--ink);
}
@media (max-width: 640px) {
  .nav-right { gap: 16px; }
  .nav-link { display: none; }
}

/* ============================ HERO ============================ */
.hero {
  padding: 110px 32px 130px;
  background:
    radial-gradient(ellipse at 20% -10%, rgba(201, 168, 114, 0.12), transparent 55%),
    radial-gradient(ellipse at 90% 110%, rgba(201, 168, 114, 0.06), transparent 55%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
}
.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}
.eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 28px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(48px, 7vw, 88px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0 0 36px;
  color: var(--text);
}
.hero h1 em {
  color: var(--accent);
  font-style: italic;
}
.lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--text-soft);
  max-width: 720px;
  margin: 0 0 48px;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 0 0 40px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  font-size: 14px;
  color: var(--text-mute);
}
.hero-meta strong { color: var(--text-soft); font-weight: 600; }
.hero-meta .dot { color: var(--accent); opacity: 0.6; }

/* ============================ BUTTONS ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 30px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: var(--ink);
}
.btn-primary:hover {
  background: var(--accent-soft);
  color: var(--ink);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-soft);
  border-color: var(--line);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-large {
  padding: 20px 40px;
  font-size: 17px;
}

/* ============================ SECTIONS ============================ */
.section {
  padding: 110px 32px;
  border-bottom: 1px solid var(--line-soft);
}
.section-inner {
  max-width: var(--maxw);
  margin: 0 auto;
}
.narrow {
  max-width: var(--maxw-narrow);
}
.section-dark {
  background: var(--ink-2);
}
.section-pitch {
  background: var(--ink-2);
  padding-top: 130px;
  padding-bottom: 130px;
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 22px;
}
.section h2 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(34px, 4.5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.012em;
  margin: 0 0 50px;
  color: var(--text);
  max-width: 900px;
}
.section h2.serif { font-family: var(--font-serif); }
.big {
  font-size: 21px;
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0 0 28px;
}
.big:last-child { margin-bottom: 0; }

/* ============================ GRIDS  GENERIC ============================ */
.grid {
  display: grid;
  gap: 28px;
}
.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; }
}

/* ============================ CARDS  DEFIS ============================ */
.card {
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--accent-deep);
  transform: translateY(-2px);
}
.card h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 14px;
  color: var(--text);
}
.card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.6;
}

/* ============================ FEATURES  CAPACITES ============================ */
.feature {
  padding: 4px 0;
  border-top: 1px solid var(--line);
  padding-top: 32px;
  padding-bottom: 12px;
}
.feature-num {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.feature h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--text);
}
.feature p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.65;
}

/* ============================ DIFFERENCIATEURS ============================ */
.diff-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}
.diff-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}
.diff-label {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.005em;
}
.diff-body p {
  margin: 0;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-soft);
}
@media (max-width: 820px) {
  .diff-row { grid-template-columns: 1fr; gap: 12px; padding: 28px 0; }
  .diff-label { font-size: 22px; }
}

/* ============================ SECURITE ============================ */
.security-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 50px;
}
.security-item {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 20px;
  align-items: start;
}
.security-tick {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(201, 168, 114, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.security-item h4 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text);
}
.security-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.6;
}

/* ============================ USAGE  4 STEPS ============================ */
.usage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 64px;
}
@media (max-width: 820px) { .usage-grid { grid-template-columns: 1fr; gap: 40px; } }
.usage-step h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
}
.usage-step p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.65;
}
.usage-step p em { color: var(--accent-soft); font-style: italic; }
.usage-num {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 8px;
}

/* ============================ PROOF / SHOWCASE ============================ */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 980px) { .proof-grid { grid-template-columns: 1fr; } }
.proof {
  border: 1px solid var(--line);
  background: var(--ink-2);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.proof-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.proof h3 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  margin: 0;
  color: var(--text);
}
.proof p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-soft);
}

/* ============================ OFFER ============================ */
.section-offer {
  background: var(--ink-2);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201, 168, 114, 0.10), transparent 50%),
    var(--ink-2);
  padding: 120px 32px;
}
.offer-card {
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 56px 56px 48px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}
@media (max-width: 720px) { .offer-card { padding: 36px 28px; } }
.offer-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  align-items: start;
}
.offer-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.offer-step h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  margin: 6px 0 8px;
  color: var(--text);
}
.offer-step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-soft);
}

.pricing {
  border-top: 1px solid var(--line);
  padding-top: 36px;
  margin-top: 12px;
}
.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 26px;
}
.pricing-currency {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 500;
  color: var(--accent);
}
.pricing-number {
  font-family: var(--font-serif);
  font-size: 72px;
  font-weight: 500;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.02em;
}
.pricing-period {
  font-size: 15px;
  color: var(--text-soft);
  margin-left: 8px;
}
.pricing-includes {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 28px;
}
@media (max-width: 720px) { .pricing-includes { grid-template-columns: 1fr; } }
.pricing-includes li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.5;
}
.pricing-includes li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
}
.pricing-note {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.55;
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.offer-cta {
  margin-top: 44px;
  text-align: center;
}
.offer-cta-prompt {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0 0 18px;
}
.contact-card {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 100%;
}
.contact-email {
  display: inline-flex;
  align-items: center;
  padding: 18px 26px;
  font-size: 18px;
  font-weight: 500;
  color: var(--accent);
  background: rgba(201, 168, 114, 0.06);
  letter-spacing: 0.005em;
  word-break: break-all;
  transition: background 0.15s;
}
.contact-email:hover {
  background: rgba(201, 168, 114, 0.12);
  color: var(--accent-soft);
}
.contact-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--ink);
  border: none;
  border-left: 1px solid var(--accent);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  min-width: 100px;
}
.contact-copy:hover { background: var(--accent-soft); }
.contact-copy.copied {
  background: #2a4d35;
  color: #d6f0d8;
}
@media (max-width: 540px) {
  .contact-card { flex-direction: column; }
  .contact-copy { border-left: none; border-top: 1px solid var(--accent); padding: 14px 22px; }
  .contact-email { font-size: 16px; padding: 14px 18px; }
}
.offer-cta-note {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--text-mute);
}

/* ============================ TRANSCRIPT POINTER ============================ */
.transcript-pointer {
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}
.transcript-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 22px 28px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: border-color 0.18s, transform 0.18s, background 0.18s;
  text-align: left;
}
.transcript-link:hover {
  border-color: var(--accent);
  background: var(--ink-3);
  transform: translateX(2px);
}
.transcript-link-arrow {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}
.transcript-link-body { display: flex; flex-direction: column; gap: 4px; }
.transcript-link-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}
.transcript-link-meta {
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}

/* ============================ CLOSE / SIGNATURE ============================ */
.section-close {
  background: var(--ink);
  padding: 100px 32px 120px;
}
.signature {
  font-family: var(--font-serif);
  font-size: 22px;
  font-style: italic;
  color: var(--accent);
  margin: 36px 0 0;
}

/* ============================ FOOTER ============================ */
.footer {
  background: var(--ink-2);
  border-top: 1px solid var(--line-soft);
  padding: 36px 32px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-mini {
  margin: 12px 0 0;
  color: var(--text-mute);
  font-size: 13px;
}
.footer-meta {
  text-align: right;
  font-size: 13px;
  color: var(--text-mute);
}
.footer-meta p { margin: 0 0 4px; }
.footer-meta a { color: var(--text-soft); }

@media (max-width: 640px) {
  .nav-inner { padding: 16px 20px; }
  .nav-cta { display: none; }
  .hero { padding: 70px 20px 90px; }
  .section { padding: 80px 20px; }
  .footer { padding: 28px 20px; }
  .footer-meta { text-align: left; }
}