/* ==========================================================================
   Inside Business · Feuille de style
   ========================================================================== */

/* 1. Variables
   ========================================================================== */
:root {
  /* Fonds */
  --bg: #141414;
  --bg-alt: #171717;
  --bg-footer: #111111;
  --surface: #1e1e1e;

  /* Bordures */
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --border-header: #262626;

  /* Textes */
  --text: #ffffff;
  --text-soft: #d4d4d4;
  --text-muted: #c9c9c9;
  --text-subtle: #a8a8a8;
  --text-faint: #8c8c8c;

  /* Accent */
  --accent: #22d3ee;
  --accent-hover: #67e8f9;
  --accent-tint: rgba(34, 211, 238, 0.14);
  --on-accent: #141414;

  /* Couleurs des supports (charte groupe Inside) */
  --c-radio: #ffcc00;
  --c-print: #86398a;
  --c-affichage: #e3003f;
  --c-digital: #f29100;

  /* Typographie */
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Mise en page */
  --container: 1200px;
  --gutter: 24px;
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 76px;
}

/* 2. Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, p, ul {
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

address {
  font-style: normal;
}

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

/* Lien d'évitement (accessibilité) */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 12px;
  color: var(--on-accent);
}

/* 3. Icônes
   ========================================================================== */
.icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon--sm { width: 16px; height: 16px; }
.icon--lg { width: 26px; height: 26px; }
.icon--accent { width: 18px; height: 18px; stroke: var(--accent); }

/* 4. Boutons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 700;
  white-space: nowrap;
}

.btn .icon {
  width: 18px;
  height: 18px;
}

.btn--primary {
  background: var(--accent);
  color: var(--on-accent);
}

.btn--primary:hover {
  background: var(--accent-hover);
  color: var(--on-accent);
}

.btn--outline {
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  padding: 0 18px;
}

.btn--outline:hover {
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent);
}

/* 5. En-tête
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 20, 20, 0.88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-header);
}

.header__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  min-height: var(--header-h);
  padding-block: 14px;
}

.header__logo {
  margin-right: auto;
  color: var(--text);
  font-size: 1.3125rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.header__logo:hover {
  color: var(--text);
}

.header__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* 6. Section présentation
   ========================================================================== */
.hero {
  padding-block: 96px 104px;
  scroll-margin-top: var(--header-h);
}

.hero .container {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.hero__text {
  display: flex;
  flex-direction: column;
  gap: 26px;
  max-width: 820px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.eyebrow__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero__lead {
  font-size: 1.1875rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.hero__note {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-subtle);
}

/* Cartes supports */
.media-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 16px;
}

.media-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.media-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
}

.media-card__icon--radio     { background: var(--c-radio);     color: var(--on-accent); }
.media-card__icon--print     { background: var(--c-print);     color: #ffffff; }
.media-card__icon--affichage { background: var(--c-affichage); color: #ffffff; }
.media-card__icon--digital   { background: var(--c-digital);   color: var(--on-accent); }

.media-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.3;
}

.media-card__sub {
  margin-top: 3px;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

/* 7. Section contact
   ========================================================================== */
.contact {
  padding-block: 96px;
  background: var(--bg-alt);
  border-top: 1px solid #222222;
  scroll-margin-top: var(--header-h);
}

.contact .container {
  display: flex;
  flex-direction: column;
  gap: 44px;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 680px;
}

.section-head__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

.section-head__title {
  font-size: clamp(2rem, 4vw, 2.875rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.section-head__lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 24px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s ease;
}

.contact-card:hover {
  border-color: var(--border-strong);
}

.contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 14px;
  border-radius: 14px;
  background: var(--accent-tint);
  color: var(--accent);
}

.contact-card__title {
  font-size: 1.375rem;
  font-weight: 700;
}

.contact-card__text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-subtle);
  margin-bottom: 14px;
}

.contact-card__link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 28px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--text-soft);
  word-break: break-word;
}

.contact-card__link:hover,
.contact-info__link:hover {
  color: var(--accent);
}

.contact-info {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
  font-size: 0.9375rem;
  color: #bdbdbd;
}

.contact-info__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 28px;
}

.contact-info__link {
  color: var(--text-soft);
}

/* 8. Pied de page
   ========================================================================== */
.footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border-header);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  padding-block: 32px;
  font-size: 0.875rem;
  color: var(--text-faint);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.footer__nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 24px;
  color: var(--text-subtle);
}

.footer__nav a:hover {
  color: var(--accent);
}

/* 9. Responsive
   ========================================================================== */
@media (max-width: 640px) {
  :root {
    --gutter: 16px;
  }

  .hero {
    padding-block: 64px 72px;
  }

  .hero .container {
    gap: 40px;
  }

  .hero__lead {
    font-size: 1.0625rem;
  }

  .contact {
    padding-block: 64px;
  }

  .contact-card {
    padding: 24px;
  }
}

@media (max-width: 420px) {
  .header__actions {
    width: 100%;
  }

  .header__actions .btn {
    flex: 1 1 0;
  }
}