/* ═══════════════════════════════════════════════════
   KLUUB PRODUCTION — FEUILLE DE STYLE PRINCIPALE
   Architecture : CSS Custom Properties + Flexbox + Grid
   ═══════════════════════════════════════════════════ */

/* ─── 1. VARIABLES ─────────────────────────────────── */
:root {
  /* Palette */
  --clr-bg:         #0e0e0e;
  --clr-bg-alt:     #161616;
  --clr-surface:    #1c1c1c;
  --clr-border:     rgba(255,255,255,.08);
  --clr-text:       #e8e2d6;
  --clr-text-muted: #8a8278;
  --clr-accent:     #c9a96e;      /* or doré */
  --clr-accent-dk:  #a07840;
  --clr-white:      #f5f1ea;

  /* Typo */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Barlow', sans-serif;
  --font-cond:    'Barlow Condensed', sans-serif;

  /* Espacements */
  --space-xs:  .4rem;
  --space-sm:  .8rem;
  --space-md:  1.6rem;
  --space-lg:  3.2rem;
  --space-xl:  6.4rem;
  --space-2xl: 10rem;

  /* Conteneur */
  --max-w: 1200px;
  --gutter: 2rem;

  /* Transitions */
  --ease: cubic-bezier(.25,.46,.45,.94);
  --dur: 380ms;

  /* Rayon */
  --radius: 2px;
}

/* ─── 2. RESET & BASE ──────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* ─── 3. UTILITAIRES ───────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--space-2xl);
}

.alt-bg {
  background-color: var(--clr-bg-alt);
}

.section-label {
  display: block;
  font-family: var(--font-cond);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.section-header .section-label { text-align: center; }

.section-intro {
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  margin-top: var(--space-md);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--clr-white);
}

h2 em {
  font-style: italic;
  color: var(--clr-accent);
}

h3 {
  font-family: var(--font-cond);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: var(--space-sm);
}

/* ─── 4. HEADER ────────────────────────────────────── */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(14,14,14,.96), rgba(14,14,14,.0));
  backdrop-filter: blur(0px);
  transition: background var(--dur) var(--ease), backdrop-filter var(--dur) var(--ease);
}

.site-header.scrolled {
  background: rgba(14,14,14,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
}

.header-inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 1.4rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  gap: .15rem;
  line-height: 1;
}

.logo-k {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--clr-accent);
  line-height: 1;
}

.logo-rest {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--clr-white);
  letter-spacing: .04em;
  line-height: 1;
}

.logo-sub {
  font-family: var(--font-cond);
  font-size: .6rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-left: .6rem;
  align-self: center;
}

.logo--sm .logo-k  { font-size: 1.5rem; }
.logo--sm .logo-rest { font-size: 1.5rem; }

/* Nav */
.main-nav ul {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  font-family: var(--font-cond);
  font-size: .82rem;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  transition: color var(--dur) var(--ease);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0; right: 100%;
  height: 1px;
  background: var(--clr-accent);
  transition: right var(--dur) var(--ease);
}

.main-nav a:hover { color: var(--clr-white); }
.main-nav a:hover::after { right: 0; }

.nav-cta {
  border: 1px solid var(--clr-accent) !important;
  padding: .45rem 1.1rem !important;
  color: var(--clr-accent) !important;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease) !important;
}

.nav-cta:hover {
  background: var(--clr-accent) !important;
  color: var(--clr-bg) !important;
}

.nav-cta::after { display: none !important; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.burger span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--clr-text);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

/* ─── 5. HERO ──────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Lignes déco */
.hero-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(201,169,110,.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(201,169,110,.04) 1px, transparent 1px);
  background-size: 80px 80px;
}

/* Grain texture */
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: .35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.4'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* Dégradé radial au centre */
.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(201,169,110,.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-inline: var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.hero-eyebrow {
  font-family: var(--font-cond);
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--clr-accent);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 7.5rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--clr-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .1em;
}

.title-line { display: block; }
.title-line.accent { color: var(--clr-accent); font-style: italic; }

.hero-sub {
  font-family: var(--font-cond);
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-top: var(--space-sm);
  padding: .85rem 2rem;
  border: 1px solid rgba(201,169,110,.4);
  font-family: var(--font-cond);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-text);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.hero-btn svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.hero-btn:hover { border-color: var(--clr-accent); color: var(--clr-accent); }
.hero-btn:hover svg { transform: translateY(4px); }

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--clr-accent));
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ─── 6. CONCEPT ───────────────────────────────────── */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.concept-text p {
  color: var(--clr-text-muted);
  margin-top: var(--space-md);
  font-size: 1rem;
  line-height: 1.85;
}

.concept-text p + p { margin-top: var(--space-sm); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: var(--space-lg);
  font-family: var(--font-cond);
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  transition: gap var(--dur) var(--ease);
}

.text-link svg { width: 16px; height: 16px; }
.text-link:hover { gap: .9rem; }

.concept-img-wrap {
  position: relative;
}

.concept-img-wrap img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  filter: grayscale(20%) brightness(.9);
  transition: filter var(--dur) var(--ease);
}

.concept-img-wrap:hover img { filter: grayscale(0%) brightness(1); }

/* Cadre décoratif */
.img-frame {
  position: absolute;
  inset: -12px 12px 12px -12px;

  pointer-events: none;
  z-index: -1;
}

.img-frame--right {
  inset: -12px -12px 12px 12px;
}

/* ─── 7. SERVICES ──────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
}

.service-card {
  background: var(--clr-bg-alt);
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: background var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 100%;
  height: 2px;
  background: var(--clr-accent);
  transition: right var(--dur) var(--ease);
}

.service-card:hover { background: var(--clr-surface); }
.service-card:hover::after { right: 0; }

.service-icon {
  width: 40px;
  height: 40px;
  color: var(--clr-accent);
  margin-bottom: var(--space-sm);
}

.service-icon svg { width: 100%; height: 100%; }

.service-card p { color: var(--clr-text-muted); font-size: .93rem; }

/* ─── 8. FORMATION ─────────────────────────────────── */
.formation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.formation-visual { position: relative; }

.formation-badge {
  position: absolute;
  bottom: -1.6rem;
  right: -1.6rem;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-cond);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--clr-bg);
  line-height: 1.3;
  z-index: 2;
}

.formation-text p {
  color: var(--clr-text-muted);
  margin-top: var(--space-md);
  font-size: 1rem;
  line-height: 1.85;
}

.formation-topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.formation-topics li {
  font-family: var(--font-cond);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  padding: .4rem .9rem;
  border: 1px solid rgba(201,169,110,.3);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.formation-topics li:hover {
  background: var(--clr-accent);
  color: var(--clr-bg);
}

/* ─── 9. RÉALISATIONS ──────────────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 1px;
  background: var(--clr-border);
}

.portfolio-item { display: block; overflow: hidden; }

.portfolio-img {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}

.portfolio-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease), filter .6s var(--ease);
  filter: grayscale(40%) brightness(.8);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,14,14,.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: .2rem;
  padding: 1.2rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.portfolio-overlay span {
  font-family: var(--font-cond);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
}

.portfolio-overlay strong {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--clr-white);
}

.portfolio-item:hover .portfolio-img img {
  transform: scale(1.06);
  filter: grayscale(0%) brightness(1);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
  transform: translateY(0);
}

/* ─── 10. CONTACT ──────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info h2 { margin-top: var(--space-md); }

.contact-details {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-person strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--clr-white);
}

.contact-person p {
  color: var(--clr-text-muted);
  font-size: .9rem;
  font-family: var(--font-cond);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.contact-phone {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--clr-accent);
  transition: color var(--dur) var(--ease);
}

.contact-phone svg { width: 20px; height: 20px; }
.contact-phone:hover { color: var(--clr-white); }

.contact-location {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  color: var(--clr-text-muted);
}

.contact-location svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; }
.contact-location strong { display: block; color: var(--clr-text); font-weight: 400; }
.contact-location span { font-size: .9rem; }

/* Formulaire */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.form-group label {
  font-family: var(--font-cond);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  padding: .85rem 1rem;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: .95rem;
  color: var(--clr-text);
  outline: none;
  transition: border-color var(--dur) var(--ease);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(138,130,120,.4); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(201,169,110,.5);
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .7rem;
  padding: 1rem 2rem;
  background: var(--clr-accent);
  border: none;
  cursor: pointer;
  font-family: var(--font-cond);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clr-bg);
  transition: background var(--dur) var(--ease);
  align-self: flex-start;
}

.submit-btn svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.submit-btn:hover { background: var(--clr-white); }
.submit-btn:hover svg { transform: translateX(4px); }

/* ─── 11. FOOTER ───────────────────────────────────── */
.site-footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
  padding-bottom: var(--space-xl);
}

.footer-brand p {
  color: var(--clr-text-muted);
  font-size: .9rem;
  line-height: 1.7;
  margin-top: var(--space-md);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.footer-nav a {
  font-family: var(--font-cond);
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  transition: color var(--dur) var(--ease);
}

.footer-nav a:hover { color: var(--clr-accent); }

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.footer-legal p {
  font-family: var(--font-cond);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--clr-text-muted);
}

.footer-legal a {
  font-family: var(--font-cond);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--clr-text-muted);
  transition: color var(--dur) var(--ease);
}

.footer-legal a:hover { color: var(--clr-accent); }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-block: var(--space-md);
  text-align: center;
}

.footer-bottom p {
  font-size: .78rem;
  color: rgba(138,130,120,.5);
  letter-spacing: .06em;
}

/* ─── 12. RESPONSIVE ───────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-legal { grid-column: 1 / -1; }
}

/* Mobile large */
@media (max-width: 768px) {
  :root { --space-2xl: 6rem; }

  .main-nav { display: none; }

  .main-nav.open {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(14,14,14,.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 99;
  }

  .main-nav.open ul { flex-direction: column; gap: 2.4rem; text-align: center; }
  .main-nav.open a { font-size: 1.1rem; }

  .burger { display: flex; z-index: 101; }

  .burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .burger.open span:nth-child(2) { opacity: 0; }
  .burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .concept-grid,
  .formation-grid,
  .contact-grid { grid-template-columns: 1fr; }

  .formation-visual { order: -1; }
  .formation-badge { right: 1rem; bottom: -1rem; width: 80px; height: 80px; font-size: .58rem; }

  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-legal { grid-column: auto; }
}

/* Mobile */
@media (max-width: 480px) {
  .hero-title { font-size: clamp(2.4rem, 12vw, 3.6rem); }
  .portfolio-grid { grid-template-columns: 1fr; }

  .header-inner { padding: 1rem var(--gutter); }
}

/* ─── 13. FORMULAIRE OPTIMISÉ ─────────────────────── */

/* Champ requis */
.required { color: var(--clr-accent); margin-left: .15rem; }

/* Erreurs inline */
.field-error {
  display: block;
  font-size: .75rem;
  color: #e07070;
  min-height: 1rem;
  font-family: var(--font-cond);
  letter-spacing: .04em;
  margin-top: .25rem;
  transition: opacity .2s ease;
}

.form-group input.invalid,
.form-group textarea.invalid,
.form-group select.invalid {
  border-color: rgba(224,112,112,.6);
  box-shadow: 0 0 0 2px rgba(224,112,112,.1);
}

.form-group input.valid,
.form-group textarea.valid {
  border-color: rgba(100,180,100,.4);
}

/* Select personnalisé */
.select-wrap {
  position: relative;
}

.select-wrap select {
  width: 100%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  padding: .85rem 2.5rem .85rem 1rem;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: .95rem;
  color: var(--clr-text);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}

.select-wrap select:focus {
  border-color: rgba(201,169,110,.5);
  box-shadow: 0 0 0 2px rgba(201,169,110,.12);
}

.select-wrap select option { background: var(--clr-surface); }

.select-arrow {
  position: absolute;
  right: .9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--clr-text-muted);
  pointer-events: none;
}

/* Compteur de caractères */
.field-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: .5rem;
  margin-top: .25rem;
}

.char-count {
  font-size: .72rem;
  color: var(--clr-text-muted);
  font-family: var(--font-cond);
  white-space: nowrap;
  flex-shrink: 0;
}

.char-count.warn  { color: #e0a040; }
.char-count.limit { color: #e07070; }

/* Checkbox RGPD */
.form-group--check {
  gap: .4rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  cursor: pointer;
  font-size: .88rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkmark {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.checkbox-label input:checked ~ .checkmark {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}

.checkmark::after {
  content: '';
  display: none;
  width: 5px;
  height: 9px;
  border: 1.5px solid var(--clr-bg);
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
}

.checkbox-label input:checked ~ .checkmark::after { display: block; }

.checkbox-label a {
  color: var(--clr-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Form actions */
.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.form-note {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  color: var(--clr-text-muted);
  font-family: var(--font-cond);
  letter-spacing: .04em;
}

.form-note svg { width: 13px; height: 13px; flex-shrink: 0; }

/* Spinner dans le bouton */
.btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  animation: spin .7s linear infinite;
}

.submit-btn.loading .btn-icon    { display: none; }
.submit-btn.loading .btn-spinner { display: block; }
.submit-btn.loading              { opacity: .75; pointer-events: none; cursor: not-allowed; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Feedback global */
.form-feedback { margin-top: var(--space-md); }

.feedback-success,
.feedback-error {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: 1.1rem 1.4rem;
  border: 1px solid;
}

.feedback-success {
  border-color: rgba(100,180,100,.3);
  background: rgba(100,180,100,.06);
}

.feedback-success svg { color: #64b464; width: 22px; height: 22px; flex-shrink: 0; margin-top: 1px; }

.feedback-error {
  border-color: rgba(224,112,112,.3);
  background: rgba(224,112,112,.06);
}

.feedback-error svg { color: #e07070; width: 22px; height: 22px; flex-shrink: 0; margin-top: 1px; }

.feedback-success strong,
.feedback-error strong {
  display: block;
  font-family: var(--font-cond);
  font-size: .85rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: .2rem;
}

.feedback-success p,
.feedback-error p {
  font-size: .88rem;
  color: var(--clr-text-muted);
  margin: 0;
}