/* ═══════════════════════════════════════════════════════════
   login.css — Rochepierre · Page de connexion
   Design : Split 55/45 · Photo ardéchoise + formulaire dark
   Signature : Titre "La Rochepierre" en Fraunces italic
                décalé en deux lignes avec un em en relief
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --navy:   #1C1917;
  --navy-l: #292524;
  --navy-ll:#44403C;
  --stone:  #E7E5E0;
  --ivory:  #F5F4F0;
  --dark:   #1C1917;
  --muted:  #78716C;
  --terra:  #C2410C;
  --terra-l:#EA580C;
  --terra-xl:#FB923C;
  --gold:   #D97706;
  --white:  #FEFEFE;

  --font-d: 'Fraunces', Georgia, serif;
  --font-b: 'DM Sans', system-ui, sans-serif;

  --t:       .18s cubic-bezier(.4,0,.2,1);
  --t-spring:.26s cubic-bezier(.34,1.56,.64,1);
  --r-sm:    9px;
  --r-md:    13px;
  --r-lg:    18px;
}

html, body { height: 100%; }
body {
  font-family: var(--font-b);
  background: var(--navy);
  color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Layout split ────────────────────────────────────────── */
.ls {
  display: grid;
  grid-template-columns: 55% 45%;
  min-height: 100vh;
}

/* ══════════════════════════════════════════════════════════
   CÔTÉ PHOTO
══════════════════════════════════════════════════════════ */
.ls-photo {
  position: relative;
  overflow: hidden;
}

.ls-photo-img {
  position: absolute; inset: 0;
  background: url('/assets/img/rochepierre.jpg') center 40% / cover no-repeat;
  transform: scale(1.08);
  transition: transform 8s ease-out;
  will-change: transform;
}
/* Zoom subtil au chargement — se stabilise avec une légère marge (1.045)
   qui sert ensuite de réserve pour le parallax curseur, sans jamais découvrir les bords */
body.loaded .ls-photo-img { transform: scale(1.045); }

/* Une fois le zoom d'entrée terminé, le JS reprend la main sur transform (parallax) */
.ls-photo-img.parallax-ready { transition: none; }

.ls-photo-body { will-change: transform; }

/* Vignette multicouche — assombrit les bords, garde le centre lisible */
.ls-photo-vignette {
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom,
      rgba(12,10,9,.25) 0%,
      transparent 30%,
      transparent 50%,
      rgba(12,10,9,.88) 100%),
    linear-gradient(to right,
      rgba(12,10,9,.1) 0%,
      transparent 35%);
}

/* Corps du texte sur la photo */
.ls-photo-body {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 3.5rem 3.5rem 3.25rem;
  display: flex; flex-direction: column; gap: 0;
  z-index: 2;
}

/* Eyebrow */
.ls-eyebrow {
  display: flex; align-items: center; gap: .7rem;
  font-size: .62rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .22em;
  color: rgba(255,255,255,.42);
  margin-bottom: 1.25rem;
}
.ls-eyebrow-line {
  display: inline-block;
  width: 24px; height: 1px;
  background: rgba(255,255,255,.28);
  flex-shrink: 0;
}

/* Titre principal — la signature */
.ls-headline {
  font-family: var(--font-d);
  font-size: clamp(3rem, 5vw, 4.2rem);
  font-weight: 700;
  color: #fff;
  line-height: .95;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}
/* "La" en poids light, "Rochepierre" en italic gras */
.ls-headline em {
  font-style: italic;
  font-weight: 800;
  /* Léger décalage visuel : em est plus grand et en relief doré */
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,.82) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  font-size: 1.18em;
  letter-spacing: -.04em;
}

/* Tagline */
.ls-tagline {
  font-size: .88rem;
  color: rgba(255,255,255,.42);
  line-height: 1.75;
  font-weight: 300;
  max-width: 280px;
  letter-spacing: .01em;
}

/* ══════════════════════════════════════════════════════════
   CÔTÉ FORMULAIRE
══════════════════════════════════════════════════════════ */
.ls-form-side {
  background: var(--navy);
  border-left: 1px solid rgba(255,255,255,.04);
  display: flex; align-items: center; justify-content: center;
  padding: 3rem 2.75rem;
  position: relative;
}

/* Texture subtile derrière le formulaire */
.ls-form-side::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 90% 50% at 110% 15%, rgba(194,65,12,.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at -10% 85%, rgba(120,100,80,.04) 0%, transparent 60%);
  pointer-events: none;
}

.ls-form-inner {
  width: 100%; max-width: 340px;
  position: relative; z-index: 1;
  display: flex; flex-direction: column;
  gap: 0;
}

/* ── Brand ───────────────────────────────────────────────── */
.ls-brand {
  display: flex; align-items: center; gap: .65rem;
  margin-bottom: 3rem;
}
.ls-brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px; overflow: hidden; flex-shrink: 0;
  box-shadow:
    0 4px 16px rgba(0,0,0,.45),
    inset 0 1px 0 rgba(255,255,255,.08);
}
.ls-brand-mark img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ls-brand-name {
  font-family: var(--font-d);
  font-size: .95rem; font-weight: 600;
  color: rgba(255,255,255,.7);
  letter-spacing: .01em;
  font-style: italic;
}

/* ── Heading ─────────────────────────────────────────────── */
.ls-heading { margin-bottom: 2.25rem; }
.ls-title {
  font-family: var(--font-d);
  font-size: 1.7rem; font-weight: 700;
  color: #fff; letter-spacing: -.025em;
  line-height: 1.1; margin-bottom: .45rem;
  font-style: italic;
}
.ls-desc {
  font-size: .795rem;
  color: rgba(255,255,255,.3);
  line-height: 1.75;
  font-weight: 400;
}

/* ── Erreur banner ───────────────────────────────────────── */
.ls-error-banner {
  display: flex; align-items: flex-start; gap: .55rem;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.22);
  border-radius: var(--r-md);
  padding: .7rem .9rem;
  margin-bottom: 1.5rem;
  font-size: .78rem; color: #FCA5A5;
  line-height: 1.5;
}
.ls-error-banner svg { flex-shrink: 0; margin-top: 1px; }

/* ── Formulaire ──────────────────────────────────────────── */
.ls-form {
  display: flex; flex-direction: column;
  gap: .9rem;
  margin-bottom: 0;
}

.ls-field { display: flex; flex-direction: column; gap: .38rem; }

.ls-label {
  font-size: .74rem; font-weight: 700;
  color: rgba(255,255,255,.52);
  letter-spacing: .08em; text-transform: uppercase;
}

.ls-input-wrap { position: relative; }

.ls-input-icon {
  position: absolute; left: .9rem; top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,.2);
  pointer-events: none;
  transition: color var(--t);
}
.ls-input-wrap:focus-within .ls-input-icon { color: var(--terra-xl); }

.ls-input {
  width: 100%;
  padding: 1rem 1rem 1rem 2.6rem;
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  color: #fff;
  font-family: var(--font-b); font-size: 1.02rem; font-weight: 400;
  outline: none;
  transition: background var(--t), border-color var(--t), box-shadow var(--t);
  -webkit-appearance: none;
}
.ls-input::placeholder { color: rgba(255,255,255,.18); }
.ls-input:focus {
  background: rgba(255,255,255,.085);
  border-color: rgba(234,88,12,.55);
  box-shadow: 0 0 0 3px rgba(234,88,12,.12);
}
.ls-input-err {
  border-color: rgba(239,68,68,.55) !important;
  box-shadow: 0 0 0 3px rgba(239,68,68,.1) !important;
}
.ls-field-error {
  font-size: .76rem; color: #FCA5A5;
  min-height: 1.1rem; letter-spacing: .01em;
  padding-left: .1rem;
}

/* ── Bouton CTA ──────────────────────────────────────────── */
.ls-btn {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: .55rem;
  padding: 1.1rem 1.25rem;
  background: linear-gradient(135deg, var(--terra-l) 0%, var(--terra) 100%);
  border: none; border-radius: var(--r-md);
  color: #fff;
  font-family: var(--font-b); font-size: 1rem; font-weight: 700;
  cursor: pointer; letter-spacing: .015em;
  margin-top: .4rem;
  transition: all var(--t-spring);
  box-shadow:
    0 4px 20px rgba(194,65,12,.32),
    0 1px 0 rgba(255,255,255,.08) inset;
  position: relative; overflow: hidden;
}
/* Shimmer au hover */
.ls-btn::after {
  content: '';
  position: absolute; top: 0; left: -100%; right: 100%; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
  transition: left .5s ease, right .5s ease;
}
.ls-btn:hover::after { left: 100%; right: -100%; }
.ls-btn:hover {
  background: linear-gradient(135deg, #F97316 0%, var(--terra-l) 100%);
  transform: translateY(-1.5px);
  box-shadow: 0 8px 28px rgba(194,65,12,.44), 0 1px 0 rgba(255,255,255,.1) inset;
}
.ls-btn:active { transform: translateY(0); }
.ls-btn:disabled { opacity: .4; cursor: not-allowed; transform: none; }
.ls-btn-arrow { flex-shrink: 0; transition: transform var(--t-spring); }
.ls-btn:hover .ls-btn-arrow { transform: translateX(3px); }
.ls-btn-loading .ls-btn-arrow { opacity: 0; }

/* ── Alternative Google ──────────────────────────────────── */
.ls-divider {
  display: flex; align-items: center; gap: .75rem;
  margin: 1.4rem 0;
}
.ls-divider span { flex: 1; height: 1px; background: rgba(255,255,255,.08); }
.ls-divider p { font-size: .66rem; color: rgba(255,255,255,.22); letter-spacing: .06em; text-transform: uppercase; }

.ls-btn-google {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: .65rem;
  padding: .95rem 1.25rem;
  background: rgba(255,255,255,.96);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-md);
  color: #1C1917;
  font-family: var(--font-b); font-size: .9rem; font-weight: 600;
  text-decoration: none;
  transition: all var(--t-spring);
}
.ls-btn-google:hover { background: #fff; transform: translateY(-1.5px); box-shadow: 0 8px 24px rgba(0,0,0,.28); }
.ls-btn-google:active { transform: translateY(0); }

/* ── Footer ──────────────────────────────────────────────── */
.ls-footer { margin-top: 2.25rem; }
.ls-footer-divider {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: 1rem;
}
.ls-footer-divider span {
  flex: 1; height: 1px;
  background: rgba(255,255,255,.06);
}
.ls-footer-divider p {
  font-size: .65rem;
  color: rgba(255,255,255,.16);
  letter-spacing: .06em; text-transform: uppercase;
  white-space: nowrap;
}
.ls-footer-credit {
  text-align: center;
  font-size: .66rem;
  color: rgba(255,255,255,.12);
  letter-spacing: .02em;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  .ls { grid-template-columns: 1fr; }
  .ls-photo { min-height: 42vh; }
  .ls-photo-body { padding: 2rem 2rem 2.25rem; }
  .ls-headline { font-size: clamp(2.4rem, 7vw, 3rem); }
  .ls-tagline  { display: none; }  /* Sur mobile la photo est réduite */
  .ls-form-side { padding: 2.5rem 1.75rem 3rem; }
  .ls-form-inner { max-width: 100%; }
  .ls-brand { margin-bottom: 2.25rem; }
}

@media (max-width: 480px) {
  .ls-photo { min-height: 36vh; }
  .ls-photo-body { padding: 1.5rem 1.5rem 1.75rem; }
  .ls-form-side { padding: 2rem 1.25rem 2.5rem; }
  .ls-title { font-size: 1.45rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .ls-photo-img { transition: none; }
  .ls-btn::after { display: none; }
}