/* ============================================================
   KALON TRAINING — Design system
   Palette : near-black, off-white chaud, or/laiton
   Type    : Playfair Display (titres) · Archivo (texte)
   ============================================================ */

:root {
  --bg: #0d0c0a;
  --bg-soft: #14120e;
  --bg-panel: #1a1712;
  --text: #f2ede3;
  --muted: #b3a98f;
  --gold: #c9a15f;
  --gold-soft: #e0c48e;
  --gold-deep: #8a6c3c;
  --hairline: rgba(201, 161, 95, 0.28);
  --hairline-soft: rgba(242, 237, 227, 0.09);
  --blur-pink: rgba(214, 158, 148, 0.10);

  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Archivo", "Helvetica Neue", Arial, sans-serif;

  --space: clamp(4.5rem, 9vw, 8.5rem);
  --max: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.21, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
::selection { background: var(--gold); color: var(--bg); }

/* ---------- Typo utilitaires ---------- */
.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.4rem;
}

.display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.lead { color: var(--muted); font-size: 1.06rem; max-width: 56ch; }
.small { font-size: 0.85rem; color: var(--muted); }

.gold { color: var(--gold-soft); font-style: italic; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 2.1rem;
  border: 1px solid var(--gold);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-soft);
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s;
}
.btn:hover { background: var(--gold); color: var(--bg); }
.btn--solid { background: var(--gold); color: var(--bg); }
.btn--solid:hover { background: var(--gold-soft); border-color: var(--gold-soft); color: var(--bg); }
.btn .arr { transition: transform 0.35s var(--ease); }
.btn:hover .arr { transform: translateX(5px); }

/* ---------- Barre du haut ---------- */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.2rem, 4vw, 3rem);
  height: 78px;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), height 0.4s var(--ease);
}
.topbar.scrolled {
  background: rgba(13, 12, 10, 0.85);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--hairline-soft);
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.14em;
}
.brand-mark {
  width: 34px; height: 34px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 1rem;
  font-style: italic;
}
.brand em { color: var(--gold-soft); font-style: italic; }

.nav-main { display: flex; align-items: center; gap: 2.4rem; }
.nav-main a {
  position: relative;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.4rem 0;
  transition: color 0.3s;
}
.nav-main a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right 0.35s var(--ease);
}
.nav-main a:hover, .nav-main a.active { color: var(--text); }
.nav-main a:hover::after, .nav-main a.active::after { right: 0; }
.nav-cta { padding: 0.65rem 1.5rem; }

/* Hamburger mobile */
.burger {
  display: none;
  width: 44px; height: 44px;
  background: none; border: 0; cursor: pointer;
  position: relative; z-index: 70;
}
.burger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--text);
  margin: 5px auto;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }

/* ---------- Hero plein écran ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: -1;
  overflow: hidden;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: left 30%;
  transform: scale(1.06);
  animation: heroZoom 14s var(--ease) forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(13,12,10,0.45) 0%, rgba(13,12,10,0.15) 38%, rgba(13,12,10,0.88) 82%, var(--bg) 100%);
}
.hero-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 4vw, 3rem) clamp(4.5rem, 9vh, 7rem);
}
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.4rem); max-width: 14ch; }
.hero .lead { margin: 1.6rem 0 2.4rem; color: #ddd4c0; }
.hero .eyebrow { color: var(--gold-soft); }

.hero-badge {
  position: absolute;
  top: clamp(6rem, 14vh, 9rem);
  right: clamp(1.2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  text-align: right;
}
.hero-badge .tag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--gold-soft);
}
.hero-badge .rule { width: 120px; height: 1px; background: var(--hairline); }

.scroll-hint {
  position: absolute;
  left: 50%; bottom: 1.6rem;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-size: 0.62rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--muted);
}
.scroll-hint::after {
  content: "";
  width: 1px; height: 42px;
  background: linear-gradient(var(--gold), transparent);
  animation: hintPulse 2.2s ease-in-out infinite;
}
@keyframes hintPulse { 50% { opacity: 0.25; transform: scaleY(0.6); transform-origin: top; } }

/* ---------- Pill de navigation (scroll-spy) ---------- */
.pill-nav {
  position: fixed;
  left: 50%; bottom: 1.8rem;
  transform: translateX(-50%) translateY(140%);
  z-index: 55;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.45rem;
  background: rgba(20, 18, 14, 0.82);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
  transition: transform 0.5s var(--ease);
}
.pill-nav.visible { transform: translateX(-50%) translateY(0); }
.pill-nav a {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s, background 0.3s;
}
.pill-nav a:hover { color: var(--text); }
.pill-nav a.active { background: var(--gold); color: var(--bg); }

.burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* ---------- Sections ---------- */
.section {
  position: relative;
  padding: var(--space) clamp(1.2rem, 4vw, 3rem);
}
.section-inner { max-width: var(--max); margin: 0 auto; }
.section h2 { font-size: clamp(1.9rem, 4.4vw, 3.2rem); max-width: 22ch; }
.section .lead { margin-top: 1.4rem; }
.section + .section { border-top: 1px solid var(--hairline-soft); }

/* Halo décoratif */
.glow {
  position: absolute;
  width: 46vw; height: 46vw;
  max-width: 620px; max-height: 620px;
  background: radial-gradient(circle, var(--blur-pink) 0%, transparent 68%);
  pointer-events: none;
  z-index: -1;
}

/* Split texte / image */
.split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.split.rev { grid-template-columns: 1fr 1.05fr; }
.split.rev .split-media { order: -1; }

.split-media { position: relative; }
.split-media .frame {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
}
.split-media .frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 1.4s var(--ease);
}
.split-media .frame:hover img { transform: scale(1.045); }
.split-media .frame::after {
  content: "";
  position: absolute; inset: 0;
  border: 1px solid rgba(242, 237, 227, 0.08);
  border-radius: 4px;
  pointer-events: none;
}
.split-media .offset {
  position: absolute;
  inset: 1.1rem -1.1rem -1.1rem 1.1rem;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  z-index: -1;
}
.split.rev .split-media .offset { inset: 1.1rem 1.1rem -1.1rem -1.1rem; }
.split-media.wide .frame img { aspect-ratio: 16 / 11; }

/* ---------- Bandeau chiffres ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hairline-soft);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
  margin-top: clamp(3rem, 7vw, 5.5rem);
}
.stat {
  background: var(--bg);
  padding: 2.2rem 1.5rem;
  text-align: center;
  transition: background 0.4s var(--ease);
}
.stat:hover { background: var(--bg-panel); }
.stat b {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
  color: var(--gold-soft);
  line-height: 1;
}
.stat span {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.68rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Cartes entra\00eener ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}
.card {
  position: relative;
  border: 1px solid var(--hairline-soft);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-soft);
  transition: border-color 0.4s var(--ease), transform 0.5s var(--ease);
}
.card:hover { border-color: var(--hairline); transform: translateY(-6px); }
.card-media { overflow: hidden; aspect-ratio: 16 / 10; }
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  transition: transform 1.2s var(--ease), filter 0.6s var(--ease);
}
.card:hover .card-media img { transform: scale(1.06); filter: saturate(1.05) contrast(1.05); }
.card-body { padding: 1.8rem 1.8rem 2rem; }
.card-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.45rem;
  margin-bottom: 0.7rem;
}
.card-body p { color: var(--muted); font-size: 0.95rem; }
.card-num {
  position: absolute;
  top: 1.1rem; left: 1.1rem;
  z-index: 2;
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: rgba(13, 12, 10, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-family: var(--font-display);
  font-style: italic;
  color: var(--gold-soft);
}

/* ---------- \00c9tapes ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
  counter-increment: step;
}
.step::before {
  content: "0" counter(step);
  position: absolute;
  top: -1.9rem; left: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--gold);
}
.step h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
}
.step p { color: var(--muted); font-size: 0.93rem; }

/* ---------- T\00e9moignages ---------- */
.quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}
.quote {
  border: 1px solid var(--hairline-soft);
  border-radius: 6px;
  padding: 2rem 1.8rem;
  background: var(--bg-soft);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transition: border-color 0.4s var(--ease);
}
.quote:hover { border-color: var(--hairline); }
.quote .stars { color: var(--gold); letter-spacing: 0.25em; font-size: 0.8rem; }
.quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
}
.quote footer { font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); }
.quote footer b { color: var(--gold-soft); font-weight: 500; }

/* ---------- Galerie ---------- */
.gallery {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: clamp(0.8rem, 2vw, 1.4rem);
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}
.gallery figure {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 4 / 5;
}
.gallery figure:first-child {
  grid-row: span 2;
  aspect-ratio: auto;
}
.gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: transform 1.2s var(--ease), filter 0.6s var(--ease);
}
.gallery figure:hover img { transform: scale(1.05); filter: saturate(1); }

/* ---------- Contact ---------- */
.contact {
  text-align: center;
}
.contact h2 { margin: 0 auto; }
.contact .lead { margin: 1.4rem auto 2.6rem; }
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem 1.6rem;
}
.contact-alt {
  margin-top: 2.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.contact-alt a { color: var(--gold-soft); border-bottom: 1px solid var(--hairline); }
.contact-alt a:hover { color: var(--gold); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--hairline-soft);
  padding: 2.4rem clamp(1.2rem, 4vw, 3rem);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}
.footer-inner .brand { font-size: 1rem; }
.footer-inner .brand-mark { width: 30px; height: 30px; font-size: 0.9rem; }
.footer-links {
  display: flex;
  gap: 1.8rem;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-links a:hover { color: var(--gold-soft); }
.copy { font-size: 0.72rem; color: var(--muted); opacity: 0.75; }

/* ---------- Reveal au scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg img { animation: none; transform: none; }
  .scroll-hint::after { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .split, .split.rev { grid-template-columns: 1fr; }
  .split-media, .split.rev .split-media { order: 2; }
  .split-media.wide .frame img { aspect-ratio: 4 / 3; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 2.6rem; margin-top: 4rem; }
  .quotes { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery figure:first-child { grid-column: span 2; aspect-ratio: 16 / 10; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .hero-badge { display: none; }
}
@media (max-width: 720px) {
  .nav-main {
    position: fixed;
    inset: 0;
    z-index: 65;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: rgba(13, 12, 10, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    transform: translateY(-100%);
    transition: transform 0.5s var(--ease);
  }
  .nav-main.open { transform: none; }
  .nav-main a { font-size: 0.95rem; }
  .burger { display: block; }
  .pill-nav {
    max-width: calc(100vw - 2rem);
    overflow-x: auto;
    scrollbar-width: none;
  }
  .pill-nav::-webkit-scrollbar { display: none; }
  .stats { grid-template-columns: 1fr; }
}