/* ============================================================
   KERUKERA — Design System Premium
   Palette : vert profond #0F2D24, doré #C7A45D, ivoire #F8F5EF
   Typo    : Playfair Display (titres) + Inter (corps)
   ============================================================ */

:root {
  /* Palette */
  --k-green:        #0F2D24;
  --k-green-2:      #1F4A3D;
  --k-green-deep:   #081A14;
  --k-gold:         #C7A45D;
  --k-gold-soft:    #D8B97A;
  --k-ivory:        #F8F5EF;
  --k-ivory-2:      #F1ECDF;
  --k-white:        #FFFFFF;
  --k-text:         #171717;
  --k-text-soft:    #555555;
  --k-text-mute:    #8A8A8A;
  --k-border:       #E5E1D8;
  --k-border-deep:  #CFC8B7;

  /* Layout */
  --k-radius-sm:    6px;
  --k-radius-md:    12px;
  --k-radius-lg:    20px;
  --k-radius-xl:    28px;
  --k-shadow-sm:    0 2px 12px rgba(15,45,36,0.06);
  --k-shadow-md:    0 12px 32px rgba(15,45,36,0.10);
  --k-shadow-lg:    0 24px 64px rgba(15,45,36,0.16);

  /* Typo scale */
  --k-font-serif:   'Playfair Display', Georgia, 'Times New Roman', serif;
  --k-font-sans:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --k-h1: 60px;
  --k-h2: 42px;
  --k-h3: 28px;
  --k-body: 17px;
  --k-small: 15px;
  --k-cta: 16px;

  /* Spacing */
  --k-section-pad: 110px;
  --k-section-pad-sm: 70px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body.k-premium {
  font-family: var(--k-font-sans);
  font-size: var(--k-body);
  line-height: 1.6;
  color: var(--k-text);
  background: var(--k-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--k-green); text-decoration: none; }
a:hover { color: var(--k-gold); }

/* ===== Typographie ===== */
.k-premium h1,
.k-premium h2,
.k-premium h3,
.k-premium .k-serif {
  font-family: var(--k-font-serif);
  font-weight: 600;
  color: var(--k-green);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.k-premium h1 { font-size: var(--k-h1); }
.k-premium h2 { font-size: var(--k-h2); margin-bottom: 18px; }
.k-premium h3 { font-size: var(--k-h3); margin-bottom: 12px; }

.k-premium p { font-size: var(--k-body); color: var(--k-text-soft); margin-bottom: 16px; }
.k-premium p.k-lead {
  font-size: 19px;
  color: var(--k-text);
  line-height: 1.65;
}

.k-eyebrow {
  font-family: var(--k-font-sans);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 13px;
  font-weight: 600;
  color: var(--k-gold);
  margin-bottom: 18px;
  display: inline-block;
}

.k-gold-rule {
  display: inline-block;
  width: 60px;
  height: 2px;
  background: var(--k-gold);
  margin: 22px 0;
}

/* ===== Header ===== */
.k-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--k-border);
}

.k-header__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.k-logo {
  font-family: var(--k-font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--k-green);
  letter-spacing: 0.04em;
  text-decoration: none;
}

.k-logo span { color: var(--k-gold); }

.k-nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.k-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--k-text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
}

.k-nav a:hover { color: var(--k-green); }
.k-nav a:hover::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0; right: 0;
  height: 1px;
  background: var(--k-gold);
}

.k-nav__cta {
  background: var(--k-green);
  color: var(--k-white) !important;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all .25s ease;
}
.k-nav__cta:hover {
  background: var(--k-gold);
  color: var(--k-green-deep) !important;
}

/* Burger mobile */
.k-burger { display: none; background: none; border: 0; cursor: pointer; }
.k-burger span { display: block; width: 24px; height: 2px; background: var(--k-green); margin: 5px 0; transition: .25s; }

/* ===== Buttons ===== */
.k-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--k-font-sans);
  font-size: var(--k-cta);
  font-weight: 600;
  padding: 16px 32px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: all .3s cubic-bezier(.2,.8,.2,1);
  position: relative;
}

.k-btn--primary {
  background: var(--k-green);
  color: var(--k-white);
  box-shadow: 0 8px 24px rgba(15,45,36,0.18);
}
.k-btn--primary:hover {
  background: var(--k-gold);
  color: var(--k-green-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(199,164,93,0.32);
}

.k-btn--ghost {
  background: transparent;
  color: var(--k-green);
  border: 1.5px solid var(--k-green);
}
.k-btn--ghost:hover {
  background: var(--k-green);
  color: var(--k-white);
}

.k-btn--gold {
  background: var(--k-gold);
  color: var(--k-green-deep);
}
.k-btn--gold:hover {
  background: var(--k-green);
  color: var(--k-white);
}

.k-btn svg { width: 16px; height: 16px; }

/* ===== Layout ===== */
.k-wrap { max-width: 1280px; margin: 0 auto; padding: 0 28px; }
.k-wrap--narrow { max-width: 980px; margin: 0 auto; padding: 0 28px; }

.k-section {
  padding: var(--k-section-pad) 0;
}
.k-section--ivory { background: var(--k-ivory); }
.k-section--green {
  background: var(--k-green);
  color: var(--k-ivory);
}
.k-section--green h1,
.k-section--green h2,
.k-section--green h3 { color: var(--k-white); }
.k-section--green p { color: rgba(248,245,239,0.85); }

.k-section--green .k-eyebrow { color: var(--k-gold); }

/* ===== Hero ===== */
.k-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--k-green-deep);
  color: var(--k-white);
  overflow: hidden;
}

.k-hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.k-hero__veil {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(8,26,20,0.86) 0%, rgba(15,45,36,0.65) 60%, rgba(15,45,36,0.40) 100%);
  z-index: 1;
}

.k-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 140px 28px 110px;
  width: 100%;
}

.k-hero__inner h1 {
  font-size: clamp(36px, 5vw, 64px);
  color: var(--k-white);
  max-width: 860px;
  margin-bottom: 24px;
}

.k-hero__inner p.k-lead {
  font-size: clamp(17px, 1.4vw, 21px);
  max-width: 760px;
  color: rgba(255,255,255,0.92);
  margin-bottom: 36px;
}

.k-hero__cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.k-hero .k-eyebrow { color: var(--k-gold); }

.k-hero__inner .k-btn--ghost {
  color: var(--k-white);
  border-color: rgba(255,255,255,0.6);
}
.k-hero__inner .k-btn--ghost:hover {
  background: var(--k-white);
  color: var(--k-green);
}

/* ===== Grids / Cards ===== */
.k-grid {
  display: grid;
  gap: 32px;
}
.k-grid--2 { grid-template-columns: repeat(2, 1fr); }
.k-grid--3 { grid-template-columns: repeat(3, 1fr); }
.k-grid--4 { grid-template-columns: repeat(4, 1fr); }

.k-card {
  background: var(--k-white);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius-lg);
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
  display: flex;
  flex-direction: column;
}

.k-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--k-shadow-md);
  border-color: var(--k-gold);
}

.k-card__media {
  aspect-ratio: 4/3;
  background: var(--k-ivory-2) center/cover no-repeat;
  position: relative;
}

.k-card__badge {
  position: absolute;
  top: 18px;
  left: 18px;
  background: rgba(15,45,36,0.92);
  color: var(--k-gold);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.k-card__body {
  padding: 28px 28px 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.k-card h3 {
  font-size: 26px;
  margin-bottom: 10px;
}

.k-card__loc {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--k-gold);
  margin-bottom: 14px;
}

.k-card p { margin-bottom: 20px; flex: 1; }

.k-card__cta {
  font-weight: 600;
  color: var(--k-green);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.k-card__cta::after {
  content: '→';
  transition: transform .25s ease;
}
.k-card:hover .k-card__cta::after { transform: translateX(4px); }

/* Feature row */
.k-features {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(4, 1fr);
}

.k-feature {
  text-align: left;
}
.k-feature__num {
  font-family: var(--k-font-serif);
  font-size: 36px;
  color: var(--k-gold);
  display: block;
  margin-bottom: 10px;
}
.k-feature h4 {
  font-family: var(--k-font-serif);
  font-size: 20px;
  color: var(--k-green);
  margin-bottom: 8px;
}
.k-feature p { font-size: 15px; color: var(--k-text-soft); }

/* ===== Split section ===== */
.k-split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 72px;
  align-items: center;
}
.k-split--reverse > :first-child { order: 2; }

.k-split__media {
  border-radius: var(--k-radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--k-ivory-2) center/cover no-repeat;
  box-shadow: var(--k-shadow-md);
}

.k-split__body h2 { margin-bottom: 18px; }
.k-split__body .k-lead { margin-bottom: 18px; }

/* ===== Section header ===== */
.k-section-head {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 64px;
}
.k-section-head .k-lead {
  font-size: 19px;
  color: var(--k-text-soft);
  margin-top: 14px;
}

/* ===== Breadcrumb ===== */
.k-breadcrumb {
  background: var(--k-ivory);
  border-bottom: 1px solid var(--k-border);
  padding: 14px 0;
  font-size: 13px;
  color: var(--k-text-soft);
}
.k-breadcrumb ol {
  list-style: none;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}
.k-breadcrumb li::after { content: '/'; margin-left: 8px; color: var(--k-border-deep); }
.k-breadcrumb li:last-child::after { content: ''; }
.k-breadcrumb a { color: var(--k-text-soft); }
.k-breadcrumb a:hover { color: var(--k-green); }
.k-breadcrumb [aria-current="page"] { color: var(--k-green); font-weight: 500; }

/* ===== FAQ ===== */
.k-faq { max-width: 880px; margin: 0 auto; }
.k-faq details {
  border-bottom: 1px solid var(--k-border);
  padding: 24px 0;
}
.k-faq summary {
  font-family: var(--k-font-serif);
  font-size: 22px;
  color: var(--k-green);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.k-faq summary::-webkit-details-marker { display: none; }
.k-faq summary::after {
  content: '+';
  font-family: var(--k-font-serif);
  font-size: 28px;
  color: var(--k-gold);
  transition: transform .25s ease;
}
.k-faq details[open] summary::after { content: '−'; }
.k-faq details > p {
  margin-top: 16px;
  font-size: 16px;
  color: var(--k-text-soft);
  line-height: 1.7;
}

/* ===== Footer ===== */
.k-footer {
  background: var(--k-green-deep);
  color: rgba(255,255,255,0.72);
  padding: 80px 0 32px;
  font-size: 14px;
}
.k-footer a { color: rgba(255,255,255,0.78); }
.k-footer a:hover { color: var(--k-gold); }

.k-footer__cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
}

.k-footer h5 {
  font-family: var(--k-font-serif);
  font-size: 18px;
  color: var(--k-white);
  margin-bottom: 20px;
}

.k-footer ul { list-style: none; }
.k-footer ul li { margin-bottom: 10px; }

.k-footer__logo {
  font-family: var(--k-font-serif);
  font-size: 28px;
  color: var(--k-white);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  display: inline-block;
}
.k-footer__logo span { color: var(--k-gold); }

.k-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 56px;
  padding-top: 24px;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 28px;
  padding-right: 28px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.55);
}

/* ===== CTA Banner ===== */
.k-cta-banner {
  background: var(--k-green);
  color: var(--k-white);
  border-radius: var(--k-radius-xl);
  padding: 70px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.k-cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(199,164,93,0.18), transparent 50%),
    radial-gradient(circle at 10% 80%, rgba(199,164,93,0.10), transparent 50%);
}
.k-cta-banner > * { position: relative; z-index: 1; }
.k-cta-banner h2 { color: var(--k-white); font-size: 38px; }
.k-cta-banner .k-lead { color: rgba(255,255,255,0.86); max-width: 640px; margin: 16px auto 30px; }
.k-cta-banner .k-btn--primary { background: var(--k-gold); color: var(--k-green-deep); }
.k-cta-banner .k-btn--primary:hover { background: var(--k-white); color: var(--k-green); }

/* ===== Pill list (mots-clés / usages) ===== */
.k-pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.k-pill {
  background: var(--k-white);
  border: 1px solid var(--k-border-deep);
  color: var(--k-green);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}

/* ===== Tarifs grille ===== */
.k-pricing { display: grid; gap: 28px; grid-template-columns: repeat(3, 1fr); }
.k-pricing__card {
  background: var(--k-white);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius-lg);
  padding: 36px 32px;
  transition: all .3s ease;
}
.k-pricing__card:hover { border-color: var(--k-gold); transform: translateY(-4px); }
.k-pricing__card--featured {
  background: var(--k-green);
  color: var(--k-white);
  border-color: var(--k-gold);
}
.k-pricing__card--featured h3,
.k-pricing__card--featured .k-price { color: var(--k-white); }
.k-pricing__card--featured p { color: rgba(255,255,255,0.85); }

.k-price {
  font-family: var(--k-font-serif);
  font-size: 38px;
  color: var(--k-green);
  margin: 12px 0 6px;
  font-weight: 600;
}
.k-price small { font-size: 14px; color: var(--k-text-mute); font-family: var(--k-font-sans); }

/* ===== Reassurance steps ===== */
.k-steps { counter-reset: step; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.k-step {
  background: var(--k-white);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius-md);
  padding: 28px 22px;
  position: relative;
}
.k-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--k-font-serif);
  font-size: 26px;
  color: var(--k-gold);
  display: block;
  margin-bottom: 10px;
}
.k-step h4 {
  font-family: var(--k-font-serif);
  font-size: 18px;
  color: var(--k-green);
  margin-bottom: 6px;
}
.k-step p { font-size: 14px; color: var(--k-text-soft); margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  :root { --k-section-pad: 80px; --k-section-pad-sm: 50px; }
  .k-grid--3, .k-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .k-features, .k-pricing { grid-template-columns: 1fr 1fr; }
  .k-steps { grid-template-columns: repeat(2, 1fr); }
  .k-split { grid-template-columns: 1fr; gap: 40px; }
  .k-split--reverse > :first-child { order: 0; }
  .k-footer__cols { grid-template-columns: 1fr 1fr; }
  .k-cta-banner { padding: 50px 28px; }
}

@media (max-width: 640px) {
  :root { --k-h1: 38px; --k-h2: 30px; --k-h3: 22px; --k-body: 16px; --k-section-pad: 64px; }
  .k-grid--2, .k-grid--3, .k-grid--4, .k-features, .k-pricing { grid-template-columns: 1fr; }
  .k-steps { grid-template-columns: 1fr; }
  .k-footer__cols { grid-template-columns: 1fr; }
  .k-nav { display: none; }
  .k-burger { display: block; }
  .k-nav--open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--k-white); padding: 24px; border-bottom: 1px solid var(--k-border); }
  .k-hero { min-height: 78vh; }
  .k-hero__inner { padding: 110px 22px 80px; }
  .k-cta-banner { padding: 44px 22px; }
  .k-cta-banner h2 { font-size: 28px; }
}

/* ===== Utility ===== */
.k-text-center { text-align: center; }
.k-mt-0 { margin-top: 0 !important; }
.k-mb-0 { margin-bottom: 0 !important; }
.k-mb-2 { margin-bottom: 24px; }
.k-mb-3 { margin-bottom: 36px; }

/* Skip link accessibility */
.k-skip { position: absolute; left: -9999px; }
.k-skip:focus { left: 16px; top: 16px; background: var(--k-gold); color: var(--k-green-deep); padding: 10px 14px; z-index: 999; border-radius: 6px; }