/* ==========================================================================
   Comlynk — landing page
   Feuille unique, sans dépendance. Ordre : tokens, base, composants,
   sections (dans l'ordre de la page), responsive.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
  --cream: #fdf6f0;
  --cream-warm: #fbeade;
  --white: #ffffff;

  --ink: #0f0d0c;
  --ink-soft: #6e645e;
  --ink-mute: #9a908a;

  --coral: #ee4b22;
  --coral-deep: #c13a14;
  --coral-light: #ff7a45;

  --night: #0b0a09;
  --night-soft: #17130f;

  --line: rgba(15, 13, 12, 0.08);
  --line-strong: rgba(15, 13, 12, 0.12);

  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(15, 13, 12, 0.04), 0 12px 32px rgba(15, 13, 12, 0.05);
  --shadow-float: 0 8px 20px rgba(15, 13, 12, 0.08), 0 32px 64px rgba(15, 13, 12, 0.1);

  --container: 1120px;
  --gutter: 24px;

  --font-display: "Inter Tight", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;

  --section-gap: clamp(72px, 9vw, 128px);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Le header collant ne doit pas masquer la cible d'une ancre. */
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Halos chauds de la maquette : un en haut à droite, un au milieu. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 620px at 88% -4%, rgba(255, 150, 105, 0.16), transparent 62%),
    radial-gradient(1100px 700px at 50% 44%, rgba(255, 170, 120, 0.1), transparent 60%);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin: 0;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--white);
  padding: 12px 18px;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 600;
}

.skip-link:focus {
  left: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   3. Composants
   -------------------------------------------------------------------------- */

/* Marque -------------------------------------------------------------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 10px;
  background: linear-gradient(160deg, var(--coral-light), var(--coral));
  display: grid;
  place-items: center;
  box-shadow: 0 4px 12px rgba(238, 75, 34, 0.28);
}

.brand-mark svg {
  width: 21px;
  height: 21px;
}

/* Boutons -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
  padding: 16px 26px;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.btn svg {
  width: 17px;
  height: 17px;
  flex: none;
}

.btn--primary {
  background: linear-gradient(160deg, #f6673a, var(--coral));
  color: var(--white);
  box-shadow: 0 6px 18px rgba(238, 75, 34, 0.28);
}

.btn--dark {
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 6px 18px rgba(15, 13, 12, 0.22);
}

.btn--small {
  font-size: 15px;
  padding: 11px 20px;
}

a.btn:hover {
  transform: translateY(-1px);
}

a.btn--primary:hover {
  box-shadow: 0 10px 24px rgba(238, 75, 34, 0.34);
}

a.btn--dark:hover {
  box-shadow: 0 10px 24px rgba(15, 13, 12, 0.28);
}

/* Sélecteur de langue --------------------------------------------------- */

.lang {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-mute);
  letter-spacing: 0.02em;
}

.lang a,
.lang [aria-current="true"] {
  /* Cible tactile d'au moins 24 x 24 px : les deux libellés font 18 px de
     large, le remplissage complète. */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  min-height: 24px;
}

.lang a:hover {
  color: var(--ink);
}

.lang [aria-current="true"] {
  color: var(--ink);
}

.lang .sep {
  opacity: 0.45;
}

/* Surtitres et titres de section ---------------------------------------- */

.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.section-sub {
  margin-top: 14px;
  max-width: 44ch;
  font-size: 18px;
  color: var(--ink-soft);
}

/* Cartes ---------------------------------------------------------------- */

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Châssis d'iPhone ------------------------------------------------------ */

/* Les captures sont brutes, sans coque : le boîtier est dessiné ici, ce qui
   évite de le figer dans l'image et garde les pixels pour l'écran. Les rayons
   sont en pourcentage (horizontal / vertical) pour rester circulaires quelle
   que soit la largeur d'affichage. */
.device {
  position: relative;
  padding: 3%;
  background: linear-gradient(150deg, #2a2523, #0b0a09 42%, #1c1917);
  border-radius: 15% / 7%;
  box-shadow: 0 2px 4px rgba(15, 13, 12, 0.18),
    0 30px 60px rgba(15, 13, 12, 0.22);
}

.device img {
  width: 100%;
  border-radius: 13% / 6%;
}

/* --------------------------------------------------------------------------
   4. En-tête
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(253, 246, 240, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 18px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav .nav-link {
  font-size: 16px;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}

.site-nav .nav-link:hover {
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   5. Héro
   -------------------------------------------------------------------------- */

.hero {
  padding-top: clamp(52px, 8vw, 112px);
  padding-bottom: clamp(40px, 5vw, 64px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.64fr);
  align-items: center;
  gap: clamp(32px, 4vw, 60px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--white);
  color: var(--coral-deep);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 17px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  margin-bottom: clamp(24px, 3vw, 36px);
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
  flex: none;
}

.hero h1 {
  font-size: clamp(2.25rem, 5.1vw, 4.125rem);
}

.hero h1 .accent {
  color: var(--coral);
}

.hero-lede {
  margin-top: clamp(20px, 2.4vw, 30px);
  max-width: 37ch;
  font-size: clamp(17px, 1.5vw, 19px);
  color: var(--ink-soft);
}

.hero-cta {
  margin-top: clamp(28px, 3.4vw, 42px);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.cta-note {
  font-size: 16px;
  color: var(--ink-soft);
}

/* Visuel du héro : le mockup déborde légèrement vers le bas, comme dans
   la maquette, avec l'étiquette « Détection auto » qui mord dessus. */
.hero-media {
  position: relative;
  justify-self: end;
  width: min(100%, 320px);
}

.hero-media .device {
  width: 100%;
}

.hero-tip {
  position: absolute;
  left: -46px;
  top: 46%;
  max-width: 190px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  box-shadow: var(--shadow-float);
}

.hero-tip strong {
  display: block;
  font-size: 14px;
  color: var(--coral-deep);
  margin-bottom: 3px;
}

.hero-tip span {
  display: block;
  font-size: 14px;
  line-height: 1.35;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   6. Bande de spécifications
   -------------------------------------------------------------------------- */

.specs {
  padding-bottom: var(--section-gap);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.spec-grid li {
  padding: 26px 28px;
  border-left: 1px solid var(--line);
}

.spec-grid li:first-child {
  border-left: 0;
}

.spec-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.spec-grid .spec-title + p {
  margin-top: 5px;
  font-size: 15px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   7. Trois écrans
   -------------------------------------------------------------------------- */

.steps {
  padding-bottom: var(--section-gap);
}

.step-grid {
  margin-top: clamp(32px, 4vw, 48px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 24px);
}

.step-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 28px 28px 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.step-num {
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 50%;
  background: var(--coral);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  display: grid;
  place-items: center;
  letter-spacing: 0;
}

.step-card > p {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-soft);
}

.step-shot {
  margin: 26px 0 0;
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  /* Les captures se fondent dans le bas de la carte, comme la maquette. */
  -webkit-mask-image: linear-gradient(to bottom, #000 72%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 72%, transparent 100%);
}

.step-shot img {
  width: min(100%, 250px);
  border-radius: 18px 18px 0 0;
}

/* --------------------------------------------------------------------------
   8. Cartes difficiles / tout ce que l'app a lu
   -------------------------------------------------------------------------- */

.reading {
  padding-bottom: var(--section-gap);
}

.reading-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(16px, 2vw, 24px);
  align-items: stretch;
}

.panel {
  border-radius: var(--radius-xl);
  padding: clamp(28px, 3vw, 40px) clamp(28px, 3vw, 40px) 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel h2 {
  font-size: clamp(1.6rem, 2.4vw, 2rem);
}

.panel > p {
  margin-top: 18px;
  font-size: 16px;
  max-width: 48ch;
}

.panel-dark {
  background: var(--night);
  color: var(--white);
}

.panel-dark > p {
  color: rgba(255, 255, 255, 0.68);
}

.panel-light {
  background: var(--white);
  box-shadow: var(--shadow-card);
}

.panel-light > p {
  color: var(--ink-soft);
}

.panel-shots {
  margin: clamp(28px, 3vw, 40px) 0 0;
  flex: 1;
  display: flex;
  gap: 14px;
  align-items: flex-end;
  justify-content: center;
  -webkit-mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
}

.panel-shots img {
  width: min(48%, 220px);
  border-radius: 16px 16px 0 0;
}

.panel-shots--single {
  justify-content: flex-end;
  padding-right: clamp(0px, 4vw, 48px);
}

.panel-shots--single img {
  width: min(70%, 264px);
}

/* --------------------------------------------------------------------------
   9. La fiche complète
   -------------------------------------------------------------------------- */

.record {
  padding-bottom: var(--section-gap);
}

.record-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.record-media {
  margin: 0;
}

.record-media .device {
  width: min(100%, 350px);
  margin-inline: auto;
}

.record-copy h2 {
  font-size: clamp(1.9rem, 3.4vw, 2.5rem);
}

.record-copy > p {
  margin-top: 20px;
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 52ch;
}

.mini-grid {
  margin-top: clamp(26px, 3vw, 36px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.mini-grid li {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 18px 20px;
}

.mini-grid h3 {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.mini-grid p {
  margin-top: 4px;
  font-size: 15px;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   10. Confidentialité
   -------------------------------------------------------------------------- */

.privacy {
  padding-bottom: var(--section-gap);
}

.privacy-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--night-soft);
  color: var(--white);
  padding: clamp(36px, 4.5vw, 60px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

/* Lueur corail dans le coin droit, comme la maquette. */
.privacy-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    620px 420px at 82% 24%,
    rgba(238, 75, 34, 0.42),
    transparent 66%
  );
}

.privacy-panel > * {
  position: relative;
}

.privacy-panel h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.375rem);
}

.privacy-panel h2 + p {
  margin-top: 20px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.66);
  max-width: 46ch;
}

.chips {
  display: grid;
  gap: 12px;
}

.chips li {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 15px 22px;
  font-size: 16px;
  font-weight: 600;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* --------------------------------------------------------------------------
   11. Appel final
   -------------------------------------------------------------------------- */

.final {
  padding-bottom: var(--section-gap);
  text-align: center;
}

.final-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto clamp(28px, 3.4vw, 40px);
  border-radius: 18px;
  filter: drop-shadow(0 14px 34px rgba(238, 75, 34, 0.38));
}

.final h2 {
  font-size: clamp(2rem, 4.2vw, 3rem);
}

.final .btn {
  margin-top: clamp(28px, 3.4vw, 40px);
}

.final-note {
  margin-top: 16px;
  font-size: 15px;
  color: var(--ink-mute);
}

.final-note + .final-note {
  margin-top: 5px;
}

/* --------------------------------------------------------------------------
   12. Pied de page
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  padding-block: 28px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--ink-soft);
}

.footer-brand .brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
}

.footer-brand .brand-mark svg {
  width: 16px;
  height: 16px;
}

.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 15px;
  color: var(--ink-soft);
}

.footer-links a:hover {
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   13. Pages de texte (confidentialité, conditions, assistance)
   -------------------------------------------------------------------------- */

.prose {
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: var(--section-gap);
  max-width: 760px;
}

.prose h1 {
  font-size: clamp(2.1rem, 4vw, 2.875rem);
}

.prose .updated {
  margin-top: 14px;
  font-size: 15px;
  color: var(--ink-mute);
}

.prose h2 {
  margin-top: clamp(36px, 4vw, 52px);
  font-size: clamp(1.3rem, 2.2vw, 1.5rem);
}

.prose p,
.prose li {
  margin-top: 16px;
  font-size: 17px;
  color: var(--ink-soft);
}

.prose ul {
  list-style: disc;
  padding-left: 22px;
}

.prose li {
  margin-top: 10px;
}

.prose a {
  color: var(--coral-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose .back {
  display: inline-block;
  margin-bottom: 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft);
}

.prose .back:hover {
  color: var(--ink);
}

.prose .note {
  margin-top: 28px;
  padding: 20px 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  font-size: 16px;
}

/* --------------------------------------------------------------------------
   14. Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .hero-grid,
  .record-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media {
    justify-self: center;
    width: min(100%, 320px);
  }

  .hero-tip {
    left: -30px;
  }

  .record-media {
    order: 2;
    justify-self: center;
  }

  .spec-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .spec-grid li:nth-child(odd) {
    border-left: 0;
  }

  .spec-grid li:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .step-grid,
  .reading-grid,
  .privacy-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .panel-shots--single {
    justify-content: center;
    padding-right: 0;
  }
}

@media (max-width: 720px) {
  :root {
    --gutter: 20px;
  }

  body {
    font-size: 16px;
  }

  .site-nav .nav-link {
    display: none;
  }

  .site-nav {
    gap: 16px;
  }

  .header-inner {
    gap: 16px;
  }

  .brand {
    font-size: 20px;
    gap: 10px;
  }

  .hero {
    padding-top: 36px;
  }

  .hero-lede {
    max-width: none;
  }

  .hero-media {
    width: min(100%, 290px);
  }

  .hero-tip {
    left: -8px;
    top: 34%;
    max-width: 186px;
    padding: 12px 15px;
  }

  .hero-tip strong,
  .hero-tip span {
    font-size: 14px;
  }

  .mini-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    gap: 18px;
  }
}

@media (max-width: 420px) {
  .spec-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .spec-grid li {
    border-left: 0;
  }

  .spec-grid li + li {
    border-top: 1px solid var(--line);
  }
}

/* --------------------------------------------------------------------------
   15. Préférences système
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  body::before,
  .site-header {
    display: none;
  }
}

@media (max-width: 560px) {
  .site-header .btn {
    display: none;
  }
}