/* ============================================
   LANA — Assistante virtuelle pour instituts de beauté
   Styles principaux
   ============================================ */

/* ---------- Variables & Reset ---------- */
:root {
  --white: #FFFFFF;
  --black: #1A1A1A;
  --blush: #E8C4B8;
  --blush-light: #F5E6E0;
  --gold: #C9A96E;
  --blush-hover: #ddb0a0;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Jost', 'Helvetica Neue', Arial, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1120px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--black);
  background-color: var(--white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.text-center {
  text-align: center;
}

.text-accent {
  color: var(--blush);
}

.required {
  color: var(--blush);
}

.optional {
  color: #999;
  font-size: 0.85em;
  font-weight: 300;
}

/* ---------- Section Header ---------- */
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--black);
  text-align: center;
  margin-bottom: 12px;
  line-height: 1.25;
}

.section-title--left {
  text-align: left;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: #555;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
  font-weight: 300;
  line-height: 1.7;
}

.section-header {
  margin-bottom: 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--blush);
  color: var(--white);
  border-color: var(--blush);
}

.btn--primary:hover {
  background-color: var(--blush-hover);
  border-color: var(--blush-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(232, 196, 184, 0.35);
}

.btn--outline {
  background-color: transparent;
  color: var(--black);
  border-color: var(--blush);
}

.btn--outline:hover {
  background-color: var(--blush-light);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition);
}

.navbar--scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar__logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: 0.02em;
}

.navbar__logo:hover {
  color: var(--blush);
}

.navbar__links {
  display: flex;
  gap: 32px;
}

.navbar__link {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--black);
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.01em;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--blush);
  border-radius: 2px;
  transition: width var(--transition);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__link:hover {
  color: var(--blush-hover);
}

/* Burger */
.navbar__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.navbar__burger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--black);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}

.navbar__burger--active .navbar__burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__burger--active .navbar__burger-line:nth-child(2) {
  opacity: 0;
}

.navbar__burger--active .navbar__burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  padding: 140px 0 100px;
  background: linear-gradient(135deg, var(--white) 0%, var(--blush-light) 100%);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: #555;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

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

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__image-container {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__image {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
  border: 6px solid var(--blush-light);
  box-shadow: 0 12px 40px rgba(232, 196, 184, 0.3), 0 0 0 12px rgba(232, 196, 184, 0.15);
  transition: transform var(--transition);
}

.hero__image:hover {
  transform: scale(1.02);
}

.hero__wave {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  line-height: 0;
}

.hero__wave svg {
  width: 100%;
  height: auto;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
  padding: 80px 0 100px;
  background-color: var(--blush-light);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  border: 1px solid rgba(232, 196, 184, 0.2);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card--light {
  background: var(--white);
  border: 1px solid rgba(232, 196, 184, 0.3);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--blush-light);
  color: var(--blush);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: all var(--transition);
}

.card:hover .card__icon {
  background: var(--blush);
  color: var(--white);
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--black);
}

.card__text {
  font-size: 0.92rem;
  color: #666;
  font-weight: 300;
  line-height: 1.65;
}

/* Benefits */
.services__benefits {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 40px;
  margin-bottom: 56px;
  padding: 32px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.benefit {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--black);
}

/* Pricing */
.pricing {
  display: flex;
  justify-content: center;
}

.pricing__card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 44px 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  border: 2px solid var(--blush);
  position: relative;
  box-shadow: var(--shadow-md);
}

.pricing__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--blush);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 24px;
  border-radius: 50px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pricing__price {
  margin: 24px 0 20px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.pricing__amount {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1;
}

.pricing__period {
  font-size: 1.1rem;
  color: #888;
  font-weight: 300;
}

.pricing__features {
  text-align: left;
  margin-bottom: 24px;
}

.pricing__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.95rem;
  color: #555;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.pricing__features li:last-child {
  border-bottom: none;
}

.pricing__features svg {
  color: var(--gold);
  flex-shrink: 0;
}

.pricing__trial {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: 28px;
  padding: 12px;
  background: rgba(201, 169, 110, 0.08);
  border-radius: var(--radius-sm);
}

/* ============================================
   OUTILS
   ============================================ */
.outils {
  padding: 100px 0;
  background-color: var(--white);
}

.outils__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

/* ============================================
   À PROPOS
   ============================================ */
.apropos {
  padding: 100px 0;
  background-color: var(--blush-light);
}

.apropos__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.apropos__text {
  font-size: 1.05rem;
  color: #444;
  line-height: 1.8;
  margin-bottom: 16px;
  font-weight: 300;
}

.apropos__text strong {
  font-weight: 600;
  color: var(--black);
}

.apropos__signature {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--blush);
}

.apropos__dash {
  display: block;
  width: 32px;
  height: 2px;
  background-color: var(--blush);
  border-radius: 2px;
}

.apropos__visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.apropos__avatar {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 2;
  border: 6px solid var(--blush-light);
  box-shadow: 0 12px 40px rgba(232, 196, 184, 0.3);
}

.apropos__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform var(--transition);
}

.apropos__image:hover {
  transform: scale(1.05);
}

.apropos__decor {
  display: none;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  padding: 100px 0;
  background-color: var(--white);
}

.contact__inner {
  max-width: 600px;
  margin: 0 auto;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--black);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid #e0d8d4;
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--black);
  transition: all var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: #bbb;
  font-weight: 300;
}

.form-input:focus {
  border-color: var(--blush);
  box-shadow: 0 0 0 3px rgba(232, 196, 184, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Contact Info */
.contact__info {
  position: relative;
}

.contact__info-card {
  background: var(--blush-light);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.contact__info-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--black);
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 0.95rem;
  color: #555;
  transition: color var(--transition);
}

.contact__link:hover {
  color: var(--blush);
}

.contact__link svg {
  color: var(--blush);
  flex-shrink: 0;
}

.contact__decor {
  position: absolute;
  right: -20px;
  bottom: -40px;
  width: 120px;
  height: 120px;
  opacity: 0.4;
}

.contact__decor svg {
  width: 100%;
  height: 100%;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--black);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 32px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--white);
}

.footer__tagline {
  font-size: 0.9rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

.footer__brand {
  text-align: center;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
}

.footer__links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--blush);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition);
}

.footer__social-link:hover {
  border-color: var(--blush);
  color: var(--blush);
  background: rgba(232, 196, 184, 0.1);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
  text-align: center;
}

.footer__legal,
.footer__copy {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer__legal:hover {
  color: var(--blush);
}

/* ============================================
   ANIMATIONS — Reveal on scroll
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal--delay {
  transition-delay: 0.2s;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   BOUTON WHATSAPP FLOTTANT
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--blush) 0%, var(--blush-hover) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(232, 196, 184, 0.4), 0 8px 40px rgba(232, 196, 184, 0.2);
  z-index: 999;
  transition: all var(--transition);
  color: var(--white);
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 6px 28px rgba(232, 196, 184, 0.5), 0 12px 48px rgba(232, 196, 184, 0.3);
}

.whatsapp-float:active {
  transform: scale(1.05);
}

.whatsapp-icon {
  width: 36px;
  height: 36px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.85;
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__image-container {
    max-width: 280px;
  }

  .hero__image {
    width: 250px;
    height: 250px;
  }

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

  .apropos__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .section-title--left {
    text-align: center;
  }

  .apropos__signature {
    justify-content: center;
  }

  .apropos__visual {
    order: -1;
  }

  .contact__inner {
    max-width: 100%;
  }
}

/* Mobile */
@media (max-width: 768px) {
  html {
    scroll-padding-top: 72px;
  }

  .navbar__burger {
    display: flex;
  }

  .navbar__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    background: var(--white);
    box-shadow: -4px 0 24px rgba(0,0,0,0.08);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 100px 36px 40px;
    z-index: 999;
  }

  .navbar__nav--open {
    right: 0;
  }

  .navbar__links {
    flex-direction: column;
    gap: 0;
  }

  .navbar__link {
    display: block;
    padding: 14px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(0,0,0,0.04);
  }

  .navbar__link::after {
    display: none;
  }

  /* Overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav-overlay--visible {
    opacity: 1;
    visibility: visible;
  }

  .hero {
    padding: 120px 0 80px;
  }

  .hero__title {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }

  .hero__cta {
    flex-direction: column;
    align-items: center;
  }

  .hero__cta .btn {
    width: 100%;
    max-width: 320px;
  }

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

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

  .services__benefits {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
  }

  .pricing__card {
    padding: 36px 28px;
  }

  .pricing__amount {
    font-size: 2.5rem;
  }

  .apropos__avatar {
    width: 160px;
    height: 160px;
  }

  .apropos__decor {
    width: 200px;
    height: 200px;
  }

  .contact__decor {
    display: none;
  }

  .footer__links {
    gap: 6px 20px;
  }

  .whatsapp-float {
    width: 56px;
    height: 56px;
    bottom: 24px;
    right: 24px;
  }

  .whatsapp-icon {
    width: 32px;
    height: 32px;
  }
}

/* Small mobile */
@media (max-width: 380px) {
  .container {
    padding: 0 16px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .card {
    padding: 24px 20px;
  }
}