/* ==========================================================================
   Casa Sacra — Villa de prestige, Ajaccio
   Style élégant, luxe discret, inspiration méditerranéenne
   ========================================================================== */

:root {
  --c-bg: #faf8f4;
  --c-bg-alt: #f3ede3;
  --c-cream: #ede4d3;
  --c-sand: #c9b89a;
  --c-beige: #b8a382;
  --c-ink: #0e1f33;
  --c-deep: #0a1a2e;
  --c-sea: #1a3a5c;
  --c-gold: #b08d57;
  --c-gold-light: #d4b87a;
  --c-text: #2a2a2a;
  --c-muted: #6a6a6a;
  --c-line: rgba(14, 31, 51, 0.12);

  --f-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --f-sans: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;

  --max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  margin: 0;
  font-family: var(--f-sans);
  font-weight: 300;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 16px;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; transition: color .3s var(--ease); }
a:hover { color: var(--c-gold); }

/* Typographie */
h1, h2, h3, h4, h5 {
  font-family: var(--f-serif);
  font-weight: 400;
  color: var(--c-deep);
  letter-spacing: 0.01em;
  line-height: 1.15;
  margin: 0 0 .6em;
}
h1 { font-size: clamp(2.6rem, 6vw, 5.2rem); font-weight: 300; }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); }

p { margin: 0 0 1.1em; }

.eyebrow {
  font-family: var(--f-sans);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: .72rem;
  font-weight: 500;
  color: var(--c-gold);
  display: inline-block;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--c-gold);
  vertical-align: middle;
  margin-right: .75rem;
}

.lead {
  font-family: var(--f-serif);
  font-size: clamp(1.2rem, 1.8vw, 1.6rem);
  font-style: italic;
  color: var(--c-sea);
  font-weight: 300;
  line-height: 1.5;
}

/* Layout */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section {
  padding: clamp(4rem, 9vw, 8rem) 0;
}
.section--alt { background: var(--c-bg-alt); }
.section--dark {
  background: var(--c-deep);
  color: #e8e4dc;
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: #f5efe2; }
.section--dark .eyebrow { color: var(--c-gold-light); }
.section--dark .eyebrow::before { background: var(--c-gold-light); }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.4rem 0;
  transition: background .4s var(--ease), padding .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.scrolled {
  background: rgba(250, 248, 244, 0.96);
  backdrop-filter: blur(10px);
  padding: .9rem 0;
  box-shadow: 0 1px 0 var(--c-line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  transition: color .4s var(--ease);
}
.scrolled .brand { color: var(--c-deep); }
.brand small {
  display: block;
  font-family: var(--f-sans);
  font-size: .58rem;
  letter-spacing: 0.35em;
  font-weight: 400;
  opacity: .75;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: .75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  font-weight: 400;
  position: relative;
  padding: .4rem 0;
}
.scrolled .nav-links a { color: var(--c-deep); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 1px;
  background: var(--c-gold);
  transition: all .4s var(--ease);
  transform: translateX(-50%);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a:hover,
.nav-links a.active { color: var(--c-gold); }

.nav-cta {
  padding: .7rem 1.4rem;
  border: 1px solid rgba(255,255,255,.5);
  font-size: .7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #fff;
  transition: all .4s var(--ease);
}
.scrolled .nav-cta {
  border-color: var(--c-deep);
  color: var(--c-deep);
}
.nav-cta:hover {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: #fff !important;
}

.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
}
.burger span {
  display: block;
  width: 26px;
  height: 1px;
  background: #fff;
  margin: 6px 0;
  transition: all .3s var(--ease);
}
.scrolled .burger span { background: var(--c-deep); }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  overflow: hidden;
  text-align: center;
}
.hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: zoomIn 14s var(--ease) forwards;
}
.hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,26,46,.35) 0%, rgba(10,26,46,.15) 40%, rgba(10,26,46,.65) 100%);
}
@keyframes zoomIn { to { transform: scale(1); } }

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 var(--gutter);
}
.hero h1 {
  color: #fff;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 30px rgba(0,0,0,.25);
}
.hero .lead {
  color: rgba(255,255,255,.92);
  max-width: 640px;
  margin: 0 auto 2.5rem;
}
.hero__eyebrow {
  color: var(--c-gold-light);
  margin-bottom: 1.5rem;
}
.hero__eyebrow::before { background: var(--c-gold-light); }

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 2.5rem;
  transform: translateX(-50%);
  font-size: .65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  z-index: 2;
}
.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.5);
  margin: .8rem auto 0;
  animation: scrollHint 2s var(--ease) infinite;
}
@keyframes scrollHint {
  0%, 100% { transform: scaleY(1); opacity: .5; }
  50% { transform: scaleY(.4); opacity: 1; }
}

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  padding-top: 140px;
  padding-bottom: 4rem;
  overflow: hidden;
}
.page-hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
}
.page-hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,26,46,.55) 0%, rgba(10,26,46,.75) 100%);
}
.page-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
}
.page-hero h1 {
  color: #fff;
  margin-bottom: .6rem;
  font-size: clamp(2rem, 4.8vw, 4.2rem);
}
.page-hero .lead { color: rgba(255,255,255,.88); }

@media (max-width: 640px) {
  .page-hero {
    min-height: 55vh;
    padding-top: 110px;
    padding-bottom: 2.5rem;
  }
  .page-hero h1 { font-size: clamp(1.8rem, 7vw, 2.6rem); }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2.4rem;
  font-size: .75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid var(--c-gold);
  color: #fff;
  background: transparent;
  cursor: pointer;
  transition: all .4s var(--ease);
}
.btn--filled {
  background: var(--c-gold);
  color: #fff;
}
.btn:hover {
  background: var(--c-gold-light);
  border-color: var(--c-gold-light);
  color: #fff;
  transform: translateY(-2px);
}
.btn--dark {
  border-color: var(--c-deep);
  color: var(--c-deep);
}
.btn--dark:hover {
  background: var(--c-deep);
  color: #fff;
}

/* Grids */
.grid { display: grid; gap: 2.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Intro split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}
.split__image {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}
.split__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.split__image:hover img { transform: scale(1.04); }
.split__image--frame {
  position: relative;
}
.split__image--frame::after {
  content: '';
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(255,255,255,.4);
  pointer-events: none;
}

/* Feature cards */
.feature-card {
  background: #fff;
  padding: 2.8rem 2rem;
  text-align: center;
  border: 1px solid var(--c-line);
  transition: all .5s var(--ease);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--c-gold);
  box-shadow: 0 20px 50px rgba(10, 26, 46, 0.08);
}
.feature-card__icon {
  font-family: var(--f-serif);
  font-size: 2.4rem;
  color: var(--c-gold);
  margin-bottom: 1rem;
  font-style: italic;
}
.feature-card h3 { font-size: 1.4rem; }
.feature-card p { color: var(--c-muted); font-size: .95rem; margin: 0; }

/* Spaces list */
.space-block {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: center;
  margin-bottom: clamp(3rem, 7vw, 6rem);
}
.space-block:nth-child(even) {
  grid-template-columns: 1.3fr 1fr;
}
.space-block:nth-child(even) .space-block__content { order: -1; }
.space-block__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.space-block__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.5s var(--ease);
}
.space-block:hover .space-block__image img { transform: scale(1.06); }

.space-block__content .num {
  font-family: var(--f-serif);
  font-size: 4rem;
  color: var(--c-gold);
  opacity: .3;
  line-height: 1;
  display: block;
  margin-bottom: 1rem;
}
.space-block ul {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
}
.space-block ul li {
  padding: .6rem 0 .6rem 1.4rem;
  border-bottom: 1px solid var(--c-line);
  position: relative;
  color: var(--c-text);
}
.space-block ul li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-size: .6rem;
  top: .95rem;
}
.space-block ul li:last-child { border-bottom: none; }

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.gallery__item {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.gallery__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.gallery__item::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(10, 26, 46, 0);
  transition: background .4s var(--ease);
}
.gallery__item:hover img { transform: scale(1.08); }
.gallery__item:hover::after { background: rgba(10, 26, 46, .25); }

.gallery__item--wide { grid-column: span 2; }
.gallery__item--tall { grid-row: span 2; aspect-ratio: 3/5; }

/* Quote block */
.quote {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) 0;
}
.quote p {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.4;
  color: var(--c-sea);
  font-weight: 300;
}
.quote cite {
  display: block;
  font-family: var(--f-sans);
  font-size: .72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-gold);
  font-style: normal;
  margin-top: 1.5rem;
}
.quote cite::before { content: '— '; }

/* Location */
.location-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.location-map {
  aspect-ratio: 4/3;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  overflow: hidden;
}
.location-map iframe {
  width: 100%; height: 100%;
  border: none;
  filter: grayscale(40%) contrast(.95);
}
.poi-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}
.poi-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-line);
  font-size: .95rem;
}
.poi-list li span:last-child {
  color: var(--c-gold);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.05rem;
}

/* Form */
.contact-form {
  display: grid;
  gap: 1.4rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.form-field { display: flex; flex-direction: column; }
.form-field label {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  margin-bottom: .5rem;
  font-weight: 500;
}
.form-field input,
.form-field textarea,
.form-field select {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--c-line);
  padding: .7rem 0;
  font-family: var(--f-sans);
  font-size: 1rem;
  color: var(--c-deep);
  transition: border-color .3s var(--ease);
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-bottom-color: var(--c-gold);
}
.form-field textarea { resize: vertical; min-height: 120px; }

/* Footer */
.site-footer {
  background: var(--c-deep);
  color: rgba(255,255,255,.7);
  padding: 5rem 0 2rem;
  font-size: .9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
.site-footer h4 {
  color: #fff;
  font-family: var(--f-sans);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-weight: 500;
  margin-bottom: 1.2rem;
}
.site-footer .brand {
  color: #fff;
  margin-bottom: 1rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: .7rem; }
.site-footer a:hover { color: var(--c-gold-light); }
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  justify-content: space-between;
  font-size: .75rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,.5);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .location-info { grid-template-columns: 1fr; gap: 3rem; }
  .space-block,
  .space-block:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .space-block:nth-child(even) .space-block__content { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery__item--wide { grid-column: span 2; }
  .gallery__item--tall { grid-row: auto; aspect-ratio: 4/3; }
}

/* ==========================================================================
   CALENDRIER (dispos publiques)
   ========================================================================== */
.cs-calendar {
  background: #fff;
  padding: clamp(1.25rem, 2.5vw, 2.5rem);
  border: 1px solid var(--c-line);
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}
.cs-cal-loading { text-align: center; color: var(--c-muted); padding: 3rem 0; font-size: .9rem; }
.cs-cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.cs-cal-nav {
  background: none;
  border: 1px solid var(--c-line);
  width: 36px; height: 36px;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--c-deep);
  transition: all .3s;
}
.cs-cal-nav:hover { background: var(--c-deep); color: #fff; border-color: var(--c-deep); }
.cs-cal-legend {
  display: flex; gap: 1.2rem;
  font-size: .72rem; color: var(--c-muted);
  text-transform: uppercase; letter-spacing: .1em;
}
.cs-cal-legend i.dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}
.cs-cal-legend i.available { background: #fff; border: 1px solid var(--c-sand); }
.cs-cal-legend i.booked { background: var(--c-err, #c2410c); }
.cs-cal-legend i.pending { background: var(--c-gold); }

.cs-cal-months {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}
@media (max-width: 680px) {
  .cs-cal-months { grid-template-columns: 1fr; }
}
.cs-cal-month .cs-cal-title {
  text-align: center;
  font-family: var(--f-serif);
  font-size: 1.3rem;
  color: var(--c-deep);
  margin-bottom: 1rem;
}
.cs-cal-grid-head {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: .7rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: .4rem;
}
.cs-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}
.cs-day {
  aspect-ratio: 1;
  background: #fff;
  border: 1px solid transparent;
  font-size: .85rem;
  color: var(--c-deep);
  cursor: pointer;
  font-family: inherit;
  transition: all .2s;
  border-radius: 2px;
}
.cs-day:hover:not(:disabled) { background: var(--c-cream); border-color: var(--c-gold); }
.cs-day.past {
  color: #ccc;
  cursor: not-allowed;
  background: #fafafa;
}
.cs-day.unavailable {
  cursor: not-allowed;
  text-decoration: line-through;
  opacity: .55;
}
.cs-day.unavailable.booked { background: #fae3de; color: #92400e; }
.cs-day.unavailable.pending { background: #fef3c7; color: #854d0e; }
.cs-day.unavailable.blocked { background: #e5e7eb; color: #374151; }
.cs-day.sel-start,
.cs-day.sel-end {
  background: var(--c-deep) !important;
  color: #fff !important;
  border-color: var(--c-deep) !important;
}
.cs-day.in-range { background: var(--c-cream); }

.cs-cal-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-line);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: .9rem;
  color: var(--c-text);
}
.cs-cal-btn {
  margin-left: auto;
  padding: .9rem 1.8rem;
  background: var(--c-gold);
  color: #fff;
  border: none;
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  transition: all .3s;
}
.cs-cal-btn:hover { background: var(--c-deep); }

/* ==========================================================================
   CHAT IA (Livia — conciergerie virtuelle)
   ========================================================================== */
#cs-chat {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 950;
  font-family: var(--f-sans);
}
.cs-chat-toggle {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--c-deep);
  color: #fff;
  border: 2px solid var(--c-gold);
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(10, 26, 46, 0.3);
  font-family: var(--f-serif);
  font-size: 1.6rem;
  font-style: italic;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .4s var(--ease);
}
.cs-chat-toggle:hover {
  transform: scale(1.08);
  background: var(--c-gold);
}
.cs-chat-toggle.hidden { display: none; }
.cs-chat-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  background: var(--c-gold);
  color: #fff;
  border-radius: 50%;
  font-size: .68rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-sans);
  font-style: normal;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(176, 141, 87, .5); }
  50% { box-shadow: 0 0 0 10px rgba(176, 141, 87, 0); }
}

.cs-chat-panel {
  width: 380px;
  max-width: calc(100vw - 3rem);
  height: 560px;
  max-height: calc(100vh - 4rem);
  background: #fff;
  box-shadow: 0 30px 80px rgba(10, 26, 46, .25);
  display: none;
  flex-direction: column;
  border: 1px solid var(--c-line);
  overflow: hidden;
}
.cs-chat-panel.open { display: flex; }

.cs-chat-header {
  background: var(--c-deep);
  color: #fff;
  padding: 1.2rem 1.4rem;
  display: flex;
  align-items: center;
  gap: .9rem;
}
.cs-chat-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--c-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: #fff;
  flex-shrink: 0;
}
.cs-chat-title {
  flex: 1;
  min-width: 0;
}
.cs-chat-title strong {
  display: block;
  font-family: var(--f-serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: .03em;
}
.cs-chat-title span {
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  opacity: .7;
}
.cs-chat-title span::before {
  content: '●';
  color: #4ade80;
  margin-right: 4px;
}
.cs-chat-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: .7;
  padding: 0 .4rem;
}
.cs-chat-close:hover { opacity: 1; }

.cs-chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.4rem;
  background: var(--c-bg);
  display: flex;
  flex-direction: column;
  gap: .9rem;
}
.cs-msg {
  max-width: 85%;
  padding: .8rem 1rem;
  border-radius: 14px;
  font-size: .9rem;
  line-height: 1.5;
  animation: fadeIn .3s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.cs-msg.assistant {
  background: #fff;
  color: var(--c-text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  border: 1px solid var(--c-line);
}
.cs-msg.user {
  background: var(--c-deep);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.cs-msg.typing {
  align-self: flex-start;
  color: var(--c-muted);
  font-style: italic;
}
.cs-msg.typing::after {
  content: '●●●';
  letter-spacing: 3px;
  animation: typing 1.4s infinite;
}
@keyframes typing {
  0%, 60%, 100% { opacity: .3; }
  30% { opacity: 1; }
}

.cs-chat-input {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--c-line);
  display: flex;
  gap: .6rem;
  background: #fff;
}
.cs-chat-input input {
  flex: 1;
  border: none;
  padding: .7rem 0;
  font-family: inherit;
  font-size: .9rem;
  background: transparent;
  color: var(--c-deep);
}
.cs-chat-input input:focus { outline: none; }
.cs-chat-input button {
  background: var(--c-gold);
  color: #fff;
  border: none;
  padding: 0 1.2rem;
  cursor: pointer;
  font-family: var(--f-serif);
  font-size: 1.1rem;
  transition: background .3s;
}
.cs-chat-input button:hover { background: var(--c-deep); }
.cs-chat-input button:disabled { opacity: .5; cursor: not-allowed; }

.cs-chat-intro {
  padding: 1rem;
  margin-bottom: .4rem;
  text-align: center;
  font-size: .78rem;
  color: var(--c-muted);
  font-style: italic;
}

/* ==========================================================================
   FORMULAIRE R\u00c9SA (feedback AJAX)
   ========================================================================== */
.form-msg {
  padding: 1rem 1.2rem;
  border-left: 3px solid;
  font-size: .9rem;
  margin-top: 1rem;
}
.form-msg.success { background: #d1fae5; border-color: #10b981; color: #065f46; }
.form-msg.error { background: #fee2e2; border-color: #ef4444; color: #991b1b; }

@media (max-width: 640px) {
  #cs-chat { bottom: 1rem; right: 1rem; }
  .cs-chat-toggle { width: 56px; height: 56px; font-size: 1.4rem; }
  .cs-chat-panel { width: calc(100vw - 2rem); height: calc(100vh - 7rem); }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    padding: 2rem;
    gap: 1.2rem;
    box-shadow: 0 20px 40px rgba(0,0,0,.08);
  }
  .nav-links.open a { color: var(--c-deep); }
  .burger { display: block; }
  .nav-cta { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
  .gallery { grid-template-columns: 1fr; }
  .gallery__item--wide { grid-column: auto; }
}