/* ============================================================
   Openia-lab — CSS principal
   Style inspiré Vanta : fond sombre, accent violet, Inter
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --ol-dark:        #0C0C12;
  --ol-dark-2:      #08080F;
  --ol-purple:      #8B7FF5;
  --ol-purple-light:#F0EEFF;
  --ol-white:       #FFFFFF;
  --ol-gray-100:    #FAFAFA;
  --ol-gray-200:    #E8E8EF;
  --ol-gray-500:    #666666;
  --ol-gray-700:    #333333;
  --ol-text-on-dark:        rgba(255,255,255,0.90);
  --ol-muted-on-dark:       rgba(255,255,255,0.45);
  --ol-subtle-on-dark:      rgba(255,255,255,0.25);
  --ol-border-dark:         rgba(255,255,255,0.08);
  --ol-border-light:        #E8E8EF;
  --ol-radius-sm:   6px;
  --ol-radius-md:   12px;
  --ol-radius-pill: 32px;
  --ol-font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ol-max-w:       1100px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--ol-font);
  background: var(--ol-dark);
  color: var(--ol-text-on-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ── Layout ─────────────────────────────────────────────────── */
.ol-container {
  max-width: var(--ol-max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ── Navigation ─────────────────────────────────────────────── */
.ol-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12,12,18,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--ol-border-dark);
}

.ol-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  max-width: var(--ol-max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.ol-nav__logo {
  font-size: 16px;
  font-weight: 600;
  color: var(--ol-white);
  letter-spacing: -0.3px;
}
.ol-nav__logo span { color: var(--ol-purple); }

.ol-nav__links {
  display: flex;
  gap: 28px;
  font-size: 13px;
  color: var(--ol-muted-on-dark);
}
.ol-nav__links a:hover { color: var(--ol-white); transition: color .2s; }

.ol-nav__cta {
  background: var(--ol-purple);
  color: var(--ol-white);
  font-size: 13px;
  font-family: var(--ol-font);
  padding: 8px 18px;
  border-radius: var(--ol-radius-pill);
  border: none;
  cursor: pointer;
  transition: opacity .2s;
  text-decoration: none;
  display: inline-block;
}
.ol-nav__cta:hover { opacity: .85; }

/* ── Sections communes ──────────────────────────────────────── */
.ol-section { padding: 80px 0; }
.ol-section--dark { background: var(--ol-dark); }
.ol-section--light { background: var(--ol-white); color: var(--ol-gray-700); }
.ol-section--darker { background: var(--ol-dark-2); }

.ol-section__eyebrow {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--ol-purple);
  margin-bottom: 12px;
}

.ol-section--light .ol-section__eyebrow { color: var(--ol-purple); }

.ol-section__title {
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.7px;
  line-height: 1.2;
  margin-bottom: 12px;
  color: var(--ol-white);
}
.ol-section--light .ol-section__title { color: var(--ol-dark); }

.ol-section__subtitle {
  font-size: 15px;
  color: var(--ol-muted-on-dark);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.7;
}
.ol-section--light .ol-section__subtitle { color: var(--ol-gray-500); }

/* ── Hero ───────────────────────────────────────────────────── */
.ol-hero {
  background: var(--ol-dark);
  padding: 96px 0 80px;
  text-align: center;
  border-bottom: 0.5px solid var(--ol-border-dark);
}

.ol-hero__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--ol-purple);
  background: rgba(139,127,245,0.1);
  border: 0.5px solid rgba(139,127,245,0.25);
  padding: 5px 14px;
  border-radius: var(--ol-radius-pill);
  margin-bottom: 28px;
}

.ol-hero__title {
  font-size: 52px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ol-white);
  max-width: 640px;
  margin: 0 auto 20px;
}
.ol-hero__title em {
  color: var(--ol-purple);
  font-style: normal;
}

.ol-hero__subtitle {
  font-size: 16px;
  color: var(--ol-muted-on-dark);
  max-width: 460px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.ol-hero__form {
  display: flex;
  gap: 8px;
  justify-content: center;
  max-width: 440px;
  margin: 0 auto 14px;
}

.ol-hero__form input[type="email"] {
  flex: 1;
  padding: 12px 18px;
  border-radius: var(--ol-radius-pill);
  border: 0.5px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06);
  color: var(--ol-white);
  font-size: 14px;
  font-family: var(--ol-font);
  outline: none;
  transition: border-color .2s;
}
.ol-hero__form input[type="email"]::placeholder { color: rgba(255,255,255,0.3); }
.ol-hero__form input[type="email"]:focus { border-color: var(--ol-purple); }

.ol-hero__form button {
  padding: 12px 22px;
  border-radius: var(--ol-radius-pill);
  background: var(--ol-purple);
  color: var(--ol-white);
  font-size: 14px;
  font-family: var(--ol-font);
  font-weight: 500;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .2s;
}
.ol-hero__form button:hover { opacity: .85; }

.ol-hero__legal {
  font-size: 12px;
  color: var(--ol-subtle-on-dark);
}

.ol-hero__form-message {
  font-size: 13px;
  margin-top: 8px;
  min-height: 20px;
}
.ol-hero__form-message.success { color: #6EE7B7; }
.ol-hero__form-message.error   { color: #FCA5A5; }

/* ── Trust strip ────────────────────────────────────────────── */
.ol-trust {
  background: var(--ol-dark);
  border-bottom: 0.5px solid var(--ol-border-dark);
  padding: 28px 0;
  text-align: center;
}
.ol-trust__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ol-subtle-on-dark);
  margin-bottom: 14px;
}
.ol-trust__logos {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.ol-trust__logos span {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.22);
  letter-spacing: 0.5px;
}

/* ── Features ───────────────────────────────────────────────── */
.ol-features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.ol-feat {
  padding: 24px;
  border: 0.5px solid var(--ol-border-light);
  border-radius: var(--ol-radius-md);
  background: var(--ol-gray-100);
  transition: border-color .2s;
}
.ol-feat:hover { border-color: var(--ol-purple); }

.ol-feat__icon {
  width: 36px;
  height: 36px;
  background: var(--ol-purple-light);
  border-radius: var(--ol-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 18px;
  color: var(--ol-purple);
}

.ol-feat__title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--ol-dark);
}

.ol-feat__desc {
  font-size: 13px;
  color: var(--ol-gray-500);
  line-height: 1.55;
}

/* ── Équipe ─────────────────────────────────────────────────── */
.ol-team__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.ol-team-member {
  padding: 24px;
  border: 0.5px solid var(--ol-border-light);
  border-radius: var(--ol-radius-md);
  background: var(--ol-gray-100);
  text-align: center;
  transition: border-color .2s;
}
.ol-team-member:hover { border-color: var(--ol-purple); }

.ol-team-member__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--ol-purple-light);
  color: var(--ol-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 18px;
  font-weight: 600;
}

.ol-team-member__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ol-dark);
  margin-bottom: 2px;
}

.ol-team-member__role {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--ol-purple);
  margin-bottom: 10px;
}

.ol-team-member__desc {
  font-size: 13px;
  color: var(--ol-gray-500);
  line-height: 1.55;
}

/* ── Pricing ────────────────────────────────────────────────── */
.ol-pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.ol-plan {
  padding: 24px;
  border: 0.5px solid var(--ol-border-dark);
  border-radius: var(--ol-radius-md);
  background: rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
}
.ol-plan--featured {
  border: 1.5px solid var(--ol-purple);
  background: rgba(139,127,245,0.07);
}

.ol-plan__badge {
  display: inline-block;
  font-size: 10px;
  background: var(--ol-purple);
  color: var(--ol-white);
  padding: 3px 9px;
  border-radius: var(--ol-radius-pill);
  margin-bottom: 10px;
  letter-spacing: 0.3px;
  font-weight: 500;
}

.ol-plan__name {
  font-size: 11px;
  font-weight: 500;
  color: var(--ol-muted-on-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.ol-plan__price {
  font-size: 30px;
  font-weight: 500;
  color: var(--ol-white);
  letter-spacing: -0.8px;
  line-height: 1;
  margin-bottom: 4px;
}
.ol-plan__price sub {
  font-size: 13px;
  font-weight: 400;
  color: var(--ol-muted-on-dark);
  vertical-align: baseline;
}

.ol-plan__desc {
  font-size: 12px;
  color: var(--ol-muted-on-dark);
  line-height: 1.55;
  margin: 10px 0 16px;
  flex: 1;
}

.ol-plan__divider {
  border: none;
  border-top: 0.5px solid var(--ol-border-dark);
  margin: 0 0 14px;
}

.ol-plan__features {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  line-height: 2;
}
.ol-plan__features li {
  display: flex;
  align-items: center;
  gap: 7px;
}
.ol-plan__features li::before {
  content: '✓';
  color: var(--ol-purple);
  font-weight: 600;
  font-size: 12px;
  flex-shrink: 0;
}

.ol-plan__btn {
  width: 100%;
  margin-top: 18px;
  padding: 10px;
  font-size: 13px;
  font-family: var(--ol-font);
  border: 0.5px solid rgba(255,255,255,0.15);
  border-radius: var(--ol-radius-pill);
  background: transparent;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: all .2s;
  text-align: center;
  display: block;
  text-decoration: none;
}
.ol-plan__btn:hover { border-color: var(--ol-purple); color: var(--ol-white); }
.ol-plan--featured .ol-plan__btn {
  background: var(--ol-purple);
  color: var(--ol-white);
  border-color: transparent;
}
.ol-plan--featured .ol-plan__btn:hover { opacity: .85; }

.ol-pricing__option {
  padding: 14px 20px;
  background: rgba(139,127,245,0.08);
  border: 0.5px solid rgba(139,127,245,0.2);
  border-radius: var(--ol-radius-md);
  font-size: 13px;
  color: var(--ol-muted-on-dark);
  text-align: center;
  margin-top: 14px;
}
.ol-pricing__option strong { color: var(--ol-purple); font-weight: 500; }

/* ── CTA final ──────────────────────────────────────────────── */
.ol-cta {
  background: var(--ol-dark);
  padding: 96px 0;
  text-align: center;
  border-top: 0.5px solid var(--ol-border-dark);
}

.ol-cta__title {
  font-size: 36px;
  font-weight: 500;
  color: var(--ol-white);
  letter-spacing: -0.8px;
  margin-bottom: 12px;
}

.ol-cta__sub {
  font-size: 15px;
  color: var(--ol-muted-on-dark);
  margin-bottom: 32px;
}

.ol-btn-primary {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--ol-radius-pill);
  background: var(--ol-purple);
  color: var(--ol-white);
  font-size: 15px;
  font-family: var(--ol-font);
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity .2s;
  text-decoration: none;
}
.ol-btn-primary:hover { opacity: .85; }

/* ── Footer ─────────────────────────────────────────────────── */
.ol-footer {
  background: var(--ol-dark-2);
  border-top: 0.5px solid var(--ol-border-dark);
  padding: 28px 0;
}

.ol-footer__inner {
  max-width: var(--ol-max-w);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--ol-subtle-on-dark);
}

.ol-footer__links { display: flex; gap: 20px; }
.ol-footer__links a:hover { color: var(--ol-white); }

/* ── Page générique ─────────────────────────────────────────── */
.ol-page {
  background: var(--ol-white);
  color: var(--ol-gray-700);
  min-height: 60vh;
  padding: 80px 0;
}

.ol-page__header {
  background: var(--ol-dark);
  padding: 64px 0;
  text-align: center;
  border-bottom: 0.5px solid var(--ol-border-dark);
}

.ol-page__header h1 {
  font-size: 36px;
  font-weight: 500;
  color: var(--ol-white);
  letter-spacing: -0.8px;
  margin-bottom: 10px;
}
.ol-page__header p {
  font-size: 15px;
  color: var(--ol-muted-on-dark);
}

.ol-page__content {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 32px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ol-gray-700);
}
.ol-page__content h2 { font-size: 20px; font-weight: 500; margin: 32px 0 10px; color: var(--ol-dark); }
.ol-page__content h3 { font-size: 16px; font-weight: 500; margin: 24px 0 8px; color: var(--ol-dark); }
.ol-page__content p  { margin-bottom: 14px; }
.ol-page__content ul { margin: 0 0 14px 20px; list-style: disc; }
.ol-page__content li { margin-bottom: 6px; }
.ol-page__content a  { color: var(--ol-purple); }

/* ── Contact form ───────────────────────────────────────────── */
.ol-contact__form {
  max-width: 560px;
  margin: 0 auto;
}
.ol-contact__form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ol-dark);
  margin-bottom: 6px;
}
.ol-contact__form input,
.ol-contact__form textarea,
.ol-contact__form select {
  width: 100%;
  padding: 11px 16px;
  border: 0.5px solid var(--ol-border-light);
  border-radius: var(--ol-radius-md);
  font-family: var(--ol-font);
  font-size: 14px;
  color: var(--ol-dark);
  background: var(--ol-white);
  outline: none;
  transition: border-color .2s;
  margin-bottom: 18px;
}
.ol-contact__form input:focus,
.ol-contact__form textarea:focus { border-color: var(--ol-purple); }
.ol-contact__form textarea { min-height: 120px; resize: vertical; }
.ol-contact__form button {
  padding: 12px 28px;
  border-radius: var(--ol-radius-pill);
  background: var(--ol-purple);
  color: var(--ol-white);
  font-family: var(--ol-font);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity .2s;
}
.ol-contact__form button:hover { opacity: .85; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .ol-hero__title { font-size: 36px; }
  .ol-features__grid { grid-template-columns: repeat(2, 1fr); }
  .ol-pricing__grid { grid-template-columns: repeat(2, 1fr); }
  .ol-nav__links { display: none; }
}

@media (max-width: 600px) {
  .ol-container { padding: 0 20px; }
  .ol-hero { padding: 64px 0 56px; }
  .ol-hero__title { font-size: 28px; }
  .ol-hero__form { flex-direction: column; }
  .ol-features__grid { grid-template-columns: 1fr; }
  .ol-pricing__grid { grid-template-columns: 1fr; }
  .ol-footer__inner { flex-direction: column; gap: 12px; text-align: center; }
}