/* ==========================================================================
   LE COURTAGE BLANC — CONCIERGERIE AÉRIENNE
   Feuille de style principale
   ========================================================================== */

/* ---------- Variables globales ---------- */
:root {
  /* Couleurs */
  --color-black: #0e0e0e;
  --color-anthracite: #2a2a2a;
  --color-cream: #f6f2ec;
  --color-white: #ffffff;
  --color-gold: #c9a86a;
  --color-gold-soft: #e4d4b0;
  --color-text-muted: #6f6a63;

  /* Typographie */
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Montserrat', sans-serif;

  /* Espacements */
  --section-padding: 8rem 0;
  --container-width: 1180px;

  /* Transitions */
  --transition-slow: 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--color-anthracite);
  background-color: var(--color-cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2.5rem;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 1.1rem 2.6rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn--primary {
  background-color: var(--color-gold);
  color: var(--color-black);
  border-color: var(--color-gold);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:disabled:hover {
  background-color: var(--color-gold);
  color: var(--color-black);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ---------- Titres de section ---------- */
.section-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  text-align: center;
  color: var(--color-black);
}

.section-lead {
  max-width: 640px;
  margin: 1.2rem auto 4.5rem;
  text-align: center;
  font-weight: 300;
  color: var(--color-text-muted);
  font-size: 1.02rem;
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.6rem 0;
  transition: var(--transition-fast);
  background: linear-gradient(to bottom, rgba(0,0,0,0.35), transparent);
}

.site-header.is-scrolled {
  background-color: rgba(14, 14, 14, 0.92);
  padding: 1rem 0;
  backdrop-filter: blur(6px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-white);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav__links {
  display: flex;
  gap: 2.2rem;
}

.nav__links a {
  color: var(--color-white);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.nav__links a:hover {
  color: var(--color-gold);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.lang-switch__btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-switch__btn:hover {
  color: var(--color-gold);
}

.lang-switch__btn.is-active {
  color: var(--color-gold);
  font-weight: 500;
}

.lang-switch__sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.7rem;
}

.nav__cta {
  padding: 0.75rem 1.6rem;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14,14,14,0.55) 0%, rgba(14,14,14,0.35) 45%, rgba(14,14,14,0.75) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  color: var(--color-white);
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.1;
  margin-bottom: 1.6rem;
}

.hero__subtitle {
  font-weight: 300;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 2.6rem;
}

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services {
  padding: var(--section-padding);
  background-color: var(--color-cream);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.service-card {
  position: relative;
  min-height: 460px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.service-card__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.service-card__text {
  font-size: 0.92rem;
  font-weight: 300;
}

/* Cartes avec photographie */
.service-card--photo {
  color: var(--color-white);
}

.service-card__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card--photo:hover .service-card__image {
  transform: scale(1.06);
}

.service-card__overlay {
  position: relative;
  z-index: 2;
  padding: 2.4rem 2rem;
  width: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(14, 14, 14, 0.1) 35%, rgba(14, 14, 14, 0.88) 100%);
}

.service-card--photo .service-card__title {
  color: var(--color-white);
}

.service-card--photo .service-card__text {
  color: rgba(255, 255, 255, 0.85);
}

/* ==========================================================================
   EXCELLENCE
   ========================================================================== */
.excellence {
  padding: var(--section-padding);
  background-color: var(--color-black);
  color: var(--color-cream);
}

.excellence .section-title {
  color: var(--color-white);
}

.excellence .section-lead {
  color: rgba(246, 242, 236, 0.6);
}

.excellence__layout {
  display: grid;
  grid-template-columns: 0.85fr 1.6fr;
  gap: 4.5rem;
  align-items: center;
}

.excellence__image-wrap {
  position: relative;
}

.excellence__image-wrap::before {
  content: "";
  position: absolute;
  inset: -16px;
  border: 1px solid rgba(201, 168, 106, 0.4);
  z-index: 0;
}

.excellence__image {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.excellence__grid {
  display: grid;
  gap: 2.6rem;
}

.excellence-item {
  text-align: left;
  padding: 0;
}

.excellence-item__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--color-gold-soft);
  margin-bottom: 1.1rem;
  position: relative;
  padding-bottom: 1rem;
}

.excellence-item__title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 1px;
  background-color: var(--color-gold);
}

.excellence-item__text {
  font-size: 0.92rem;
  font-weight: 300;
  color: rgba(246, 242, 236, 0.75);
}

/* ==========================================================================
   CONTACT / FORMULAIRE
   ========================================================================== */
.contact {
  padding: var(--section-padding);
  background-color: var(--color-cream);
}

.contact-form {
  max-width: 760px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.form-group {
  margin-bottom: 1.8rem;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-anthracite);
  margin-bottom: 0.6rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 0.95rem;
  padding: 0.9rem 0;
  border: none;
  border-bottom: 1px solid rgba(42, 42, 42, 0.3);
  background-color: transparent;
  color: var(--color-black);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-bottom-color: var(--color-gold);
}

.form-group textarea {
  resize: vertical;
}

/* ---------- Autocomplete aéroports / villes ---------- */
.autocomplete {
  position: relative;
}

.autocomplete__list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border: 1px solid rgba(42, 42, 42, 0.15);
  box-shadow: 0 16px 32px rgba(14, 14, 14, 0.14);
  max-height: 280px;
  overflow-y: auto;
  z-index: 30;
  list-style: none;
  padding: 0.4rem 0;
  display: none;
}

.autocomplete__list.is-open {
  display: block;
}

.autocomplete__option {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.1rem;
  font-size: 0.86rem;
  font-weight: 300;
  color: var(--color-anthracite);
  cursor: pointer;
  transition: var(--transition-fast);
}

.autocomplete__label strong {
  font-weight: 500;
  color: var(--color-black);
}

.autocomplete__code {
  flex-shrink: 0;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.autocomplete__option:hover,
.autocomplete__option.is-active {
  background-color: var(--color-cream);
}

.autocomplete__option.is-active .autocomplete__label strong {
  color: var(--color-gold);
}

.autocomplete__empty {
  padding: 0.8rem 1.1rem;
  font-size: 0.82rem;
  font-style: italic;
  color: var(--color-text-muted);
}

/* ---------- Calendrier coulissant (dates de départ / retour) ---------- */
.datepicker {
  position: relative;
}

.datepicker__input {
  cursor: pointer;
}

.datepicker__panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: 300px;
  max-width: 90vw;
  background-color: var(--color-white);
  border: 1px solid rgba(42, 42, 42, 0.15);
  box-shadow: 0 16px 32px rgba(14, 14, 14, 0.14);
  padding: 1.2rem;
  z-index: 40;
  display: none;
  overflow: hidden;
}

.datepicker__panel.is-open {
  display: block;
}

.datepicker__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.datepicker__label {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-black);
}

.datepicker__nav {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(42, 42, 42, 0.2);
  background: none;
  color: var(--color-black);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition-fast);
}

.datepicker__nav:hover:not(:disabled) {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.datepicker__nav:disabled {
  opacity: 0.25;
  cursor: default;
}

.datepicker__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin-bottom: 0.4rem;
}

.datepicker__weekdays span {
  text-align: center;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.datepicker__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  row-gap: 0.3rem;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.datepicker__grid.is-sliding-out-left {
  transform: translateX(-16px);
  opacity: 0;
}

.datepicker__grid.is-sliding-out-right {
  transform: translateX(16px);
  opacity: 0;
}

.datepicker__grid.is-sliding-in-right {
  transform: translateX(16px);
  opacity: 0;
}

.datepicker__grid.is-sliding-in-left {
  transform: translateX(-16px);
  opacity: 0;
}

.datepicker__day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--color-black);
  cursor: pointer;
  transition: var(--transition-fast);
}

.datepicker__day--empty {
  cursor: default;
}

.datepicker__day.is-today {
  color: var(--color-gold);
  font-weight: 500;
}

.datepicker__day:not(.is-disabled):not(.datepicker__day--empty):hover {
  background-color: var(--color-cream);
}

.datepicker__day.is-selected {
  background-color: var(--color-black);
  color: var(--color-white);
}

.datepicker__day.is-disabled {
  color: var(--color-text-muted);
  opacity: 0.35;
  cursor: default;
}

@media (max-width: 640px) {
  .datepicker__panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 92vw;
    max-width: 340px;
    z-index: 250;
  }
}

.contact-form .btn {
  margin-top: 1rem;
}

.form-success {
  display: none;
  margin-top: 1.6rem;
  font-size: 0.9rem;
  color: var(--color-gold);
  font-weight: 400;
}

.form-success.is-visible {
  display: block;
}

.form-success.is-error {
  color: #b3574a;
}

/* ==========================================================================
   PAGE LÉGALE (Mentions / CGV / Confidentialité)
   ========================================================================== */
.legal-hero {
  padding: 11rem 0 3.5rem;
  background-color: var(--color-black);
  color: var(--color-white);
  text-align: center;
}

.legal-hero__back {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1.6rem;
  transition: var(--transition-fast);
}

.legal-hero__back:hover {
  color: var(--color-gold);
}

.legal-hero__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2.2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.legal-hero__lead {
  max-width: 560px;
  margin: 0 auto;
  color: rgba(246, 242, 236, 0.65);
  font-weight: 300;
}

.legal-subnav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem 2.4rem;
  padding: 2.2rem 2.5rem;
  background-color: var(--color-black);
  border-top: 1px solid rgba(246, 242, 236, 0.12);
}

.legal-subnav a {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(246, 242, 236, 0.6);
  transition: var(--transition-fast);
}

.legal-subnav a:hover {
  color: var(--color-gold);
}

.legal-section {
  padding: 5.5rem 0;
  background-color: var(--color-cream);
}

.legal-section--alt {
  background-color: #efe9df;
}

.legal-content {
  max-width: 780px;
}

.legal-section__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--color-black);
  margin-bottom: 2.2rem;
}

.legal-content h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--color-black);
  margin: 2.2rem 0 0.8rem;
}

.legal-content h3:first-of-type {
  margin-top: 0;
}

.legal-content p {
  font-size: 0.96rem;
  font-weight: 300;
  color: var(--color-anthracite);
  margin-bottom: 1.1rem;
}

.legal-content a {
  color: var(--color-black);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(201, 168, 106, 0.6);
}

.legal-content a:hover {
  color: var(--color-gold);
}

.legal-content strong {
  font-weight: 500;
  color: var(--color-black);
}

.legal-note {
  font-size: 0.82rem;
  font-style: italic;
  color: var(--color-text-muted);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-black);
  color: rgba(246, 242, 236, 0.7);
  padding: 5rem 0 2.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(246, 242, 236, 0.12);
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-white);
  margin-bottom: 0.8rem;
}

.footer__signature {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-gold-soft);
}

.footer__heading {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 1.2rem;
  font-weight: 500;
}

.footer__col ul li {
  margin-bottom: 0.7rem;
  font-size: 0.88rem;
}

.footer__col ul li a:hover {
  color: var(--color-gold);
}

.footer__copy {
  text-align: center;
  font-size: 0.78rem;
  padding-top: 2.2rem;
  color: rgba(246, 242, 236, 0.4);
}

/* ==========================================================================
   BANNIÈRE "AJOUTER À L'ÉCRAN D'ACCUEIL" (iOS)
   ========================================================================== */
.ios-install-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: -120px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  max-width: 480px;
  margin: 0 auto;
  padding: 1rem 1.1rem;
  padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  background-color: var(--color-black);
  border: 1px solid rgba(201, 168, 106, 0.3);
  box-shadow: 0 20px 40px rgba(14, 14, 14, 0.35);
  opacity: 0;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease, bottom 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.ios-install-banner.is-visible {
  bottom: 1rem;
  opacity: 1;
}

.ios-install-banner__icon {
  flex-shrink: 0;
  color: var(--color-gold);
}

.ios-install-banner__text {
  flex: 1;
  font-size: 0.82rem;
  font-weight: 300;
  line-height: 1.5;
  color: rgba(246, 242, 236, 0.85);
}

.ios-install-banner__text strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-white);
  margin-bottom: 0.2rem;
}

.ios-install-banner__close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: rgba(246, 242, 236, 0.5);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem;
  transition: var(--transition-fast);
}

.ios-install-banner__close:hover {
  color: var(--color-gold);
}

/* ==========================================================================
   ANIMATIONS — Fade in up (Intersection Observer)
   ========================================================================== */
.fade-in-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 960px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .excellence__layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .excellence__image-wrap {
    max-width: 420px;
    margin: 0 auto;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 720px) {
  :root {
    --section-padding: 5rem 0;
  }

  .nav__links {
    display: none;
  }

  .nav__logo {
    font-size: 0.92rem;
  }

  .nav__right {
    gap: 1rem;
  }

  .nav__cta {
    display: none;
  }

  .legal-hero {
    padding: 7.5rem 0 2.5rem;
  }

  .legal-section {
    padding: 3.5rem 0;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 380px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }
}