/* =========================================================
   My Coach Fitness — Base : tokens, reset, typographie, layout,
   header, hero, footer, utilitaires & animations.
   Couleurs échantillonnées sur la maquette du client.
   ========================================================= */

:root {
  /* --- Palette exacte de la maquette --- */
  --red: #bb0a0c;
  --red-600: #a3080a;
  --red-700: #870708;
  --red-soft: rgba(187, 10, 12, 0.12);
  --red-glow: rgba(187, 10, 12, 0.45);

  --black: #0d0d0f;
  --night: #0a0a0c;
  --ink: #15151a;
  --white: #ffffff;
  --gray: #e6e6e6;        /* bandes de sections de la maquette */
  --gray-50: #f6f6f7;
  --gray-100: #efeff1;
  --muted: #6c6c74;
  --muted-light: rgba(255, 255, 255, 0.72);
  --line: rgba(13, 13, 15, 0.1);
  --line-light: rgba(255, 255, 255, 0.14);

  /* --- Typographie --- */
  --font-display: "Anton", "Arial Narrow", sans-serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --text-kicker: 0.78rem;
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --text-lead: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --h2: clamp(2.2rem, 1.4rem + 3.6vw, 4.6rem);
  --h3: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem);
  --hero: clamp(3.1rem, 1rem + 11vw, 9.5rem);

  /* --- Espacement & rythme --- */
  --space-section: clamp(4.5rem, 3rem + 6vw, 9rem);
  --container: 1240px;
  --radius: 18px;
  --radius-sm: 12px;

  /* --- Mouvement --- */
  --dur-fast: 180ms;
  --dur: 360ms;
  --dur-slow: 720ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow: 0 24px 60px -24px rgba(13, 13, 15, 0.45);
  --shadow-red: 0 18px 40px -16px var(--red-glow);
}

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

* { margin: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; padding: 0; }
:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Lien d'évitement (a11y) ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translate(-50%, -120%);
  z-index: 200;
  background: var(--red);
  color: #fff;
  font-weight: 800;
  padding: 0.7rem 1.3rem;
  border-radius: 0 0 12px 12px;
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 0.5rem + 3vw, 2.5rem);
}

.section { padding-block: var(--space-section); position: relative; }
.section--gray { background: var(--gray); }
.section--dark { background: var(--night); color: var(--white); }

/* ---------- Typographie utilitaire ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: var(--text-kicker);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red);
}
.kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--red);
}
.section--dark .kicker { color: #ff5a5c; }

.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4rem); }
.section-head h2 { font-size: var(--h2); margin-top: 0.5rem; line-height: 1.05; }
.section-head p { margin-top: 1.1rem; color: var(--muted); font-size: var(--text-lead); }
.section--dark .section-head p { color: var(--muted-light); }

.text-red { color: var(--red); }

/* ---------- Boutons ---------- */
.btn {
  --bg: var(--red);
  --fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 1rem 1.9rem;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
  background: var(--bg);
  border-radius: 999px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  will-change: transform;
}
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--red-700);
  transform: translateX(-101%) skewX(-12deg);
  transition: transform var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-3px); box-shadow: var(--shadow-red); }
.btn:hover::after { transform: translateX(0) skewX(-12deg); }
.btn .arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.btn--ghost {
  --bg: transparent;
  --fg: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}
.btn--ghost::after { background: #fff; }
.btn--ghost:hover { color: var(--ink); border-color: #fff; }

.btn--dark {
  --bg: var(--ink);
  --fg: #fff;
}
.btn--dark::after { background: var(--red); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: 88px;
  background: rgba(10, 10, 12, 0);
  transition: background var(--dur) var(--ease), height var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck {
  height: 70px;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line-light);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: flex; align-items: center; gap: 0.7rem; }
.brand img { height: 58px; width: auto; transition: height var(--dur) var(--ease); }
.is-stuck .brand img { height: 48px; }
.brand span {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
}

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  position: relative;
  font-weight: 700;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.85);
  padding-block: 0.3rem;
  transition: color var(--dur-fast) var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav a:hover,
.nav a.is-active { color: #fff; }
.nav a:hover::after,
.nav a.is-active::after { transform: scaleX(1); }

.nav-cta { margin-left: 0.5rem; }
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line-light);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin-inline: auto;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast);
}
.nav-toggle span::before { transform: translateY(-7px); }
.nav-toggle span::after { transform: translateY(5px); }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: rotate(45deg); }
body.nav-open .nav-toggle span::after { transform: rotate(-45deg) translateY(-2px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  background: var(--night);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
  transform: scale(1.08);
  animation: heroZoom 14s var(--ease) forwards;
}
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
      180deg,
      rgba(10, 10, 12, 0.55) 0%,
      rgba(10, 10, 12, 0.18) 32%,
      rgba(10, 10, 12, 0.82) 82%,
      var(--night) 100%
    ),
    linear-gradient(90deg, rgba(10, 10, 12, 0.7) 0%, rgba(10, 10, 12, 0) 60%);
}
.hero__inner {
  position: relative;
  z-index: 2;
  padding-block: 7rem 5.5rem;
  width: 100%;
}
.hero__kicker { margin-bottom: 1.4rem; }
.hero h1 {
  font-size: var(--hero);
  letter-spacing: 0.005em;
}
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 .line > span { display: inline-block; }
.hero h1 em {
  font-style: normal;
  color: var(--red);
  -webkit-text-stroke: 0;
}
.hero__sub {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 0.9rem + 2vw, 2.6rem);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #fff;
  margin-top: 0.3rem;
}
.hero__tag {
  max-width: 34ch;
  margin-top: 1.6rem;
  font-size: var(--text-lead);
  color: rgba(255, 255, 255, 0.82);
}
.hero__tag strong { color: #fff; font-weight: 800; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; }

.hero__scroll {
  position: absolute;
  right: clamp(1.1rem, 3vw, 2.5rem);
  bottom: 2rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  writing-mode: vertical-rl;
}
.hero__scroll i {
  writing-mode: horizontal-tb;
  width: 1px;
  height: 46px;
  background: linear-gradient(var(--red), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--night);
  color: rgba(255, 255, 255, 0.7);
  padding-block: 3.5rem 0;
  border-top: 1px solid var(--line-light);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
}
.site-footer img { height: 92px; width: auto; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer-nav a { font-weight: 700; font-size: 0.9rem; color: rgba(255, 255, 255, 0.78); }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  margin-top: 2.5rem;
  background: var(--gray);
  color: #000;
  padding-block: 1.1rem;
}
.footer-bottom__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  justify-content: space-between;
  font-size: 0.82rem;
}

/* ---------- Reveal animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@keyframes heroZoom { to { transform: scale(1); } }
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; transform-origin: top; }
  50% { transform: scaleY(1); opacity: 1; transform-origin: top; }
}

/* ---------- Responsive header ---------- */
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(82vw, 360px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.6rem;
    padding: 2rem;
    background: rgba(10, 10, 12, 0.98);
    backdrop-filter: blur(14px);
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
  }
  body.nav-open .nav { transform: translateX(0); }
  .nav a { font-size: 1.2rem; }
  .nav-cta { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .hero__media img { transform: none; }
  [data-reveal] { opacity: 1; transform: none; }
}