/* =============================================
   SÉRÉNITÉ — Elegant Minimalist Spa Website
   ============================================= */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream:    #f9f5f0;
  --warm:     #f0e8dc;
  --stone:    #c8b89a;
  --sand:     #a89278;
  --earth:    #6b5744;
  --bark:     #3d2e22;
  --ink:      #1a1410;
  --white:    #ffffff;
  --muted:    #7a6e65;

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Jost', system-ui, sans-serif;

  --nav-h: 76px;
  --section-gap: clamp(80px, 10vw, 140px);
  --container: 1140px;
  --radius: 2px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ── Typography ── */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.6rem, 5.5vw, 4.8rem); }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.75rem); }

em { font-style: italic; color: var(--sand); }

.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 1rem;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--earth);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: 1.5px solid var(--earth);
  transition: background 0.3s var(--ease-out), color 0.3s, transform 0.25s var(--ease-out);
}
.btn-primary:hover {
  background: var(--bark);
  border-color: var(--bark);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 16px 36px;
  border: 1.5px solid rgba(249,245,240,0.4);
  color: var(--cream);
  transition: border-color 0.3s, background 0.3s, transform 0.25s var(--ease-out);
}
.btn-ghost:hover {
  border-color: var(--cream);
  background: rgba(249,245,240,0.08);
  transform: translateY(-2px);
}

.btn-service {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--earth);
  border-bottom: 1px solid var(--stone);
  padding-bottom: 3px;
  margin-top: 20px;
  transition: color 0.25s, border-color 0.25s, letter-spacing 0.25s;
}
.btn-service:hover {
  color: var(--bark);
  border-color: var(--earth);
  letter-spacing: 0.2em;
}

/* ── Navigation ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 clamp(24px, 5vw, 64px);
  transition: background 0.4s var(--ease-out), box-shadow 0.4s;
}
#navbar.scrolled {
  background: rgba(249, 245, 240, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(100,80,60,0.1);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--cream);
  transition: color 0.3s;
  display: inline-flex;
  align-items: center;
}
.logo-img {
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: filter 0.3s;
}
#navbar.scrolled .logo-img {
  filter: none;
}
.footer-brand .logo-img {
  filter: none;
  height: 36px;
}
#navbar.scrolled .logo { color: var(--bark); }

.nav-links {
  display: flex;
  gap: clamp(24px, 3vw, 48px);
}
.nav-links a {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(249,245,240,0.8);
  transition: color 0.25s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 100%;
  height: 1px;
  background: var(--stone);
  transition: right 0.3s var(--ease-out);
}
.nav-links a:hover { color: var(--cream); }
.nav-links a:hover::after { right: 0; }
#navbar.scrolled .nav-links a { color: var(--muted); }
#navbar.scrolled .nav-links a:hover { color: var(--bark); }

.btn-nav {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 11px 26px;
  border: 1.5px solid rgba(249,245,240,0.5);
  color: var(--cream);
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}
.btn-nav:hover {
  background: rgba(249,245,240,0.12);
  border-color: var(--cream);
}
#navbar.scrolled .btn-nav {
  border-color: var(--earth);
  color: var(--earth);
}
#navbar.scrolled .btn-nav:hover {
  background: var(--earth);
  color: var(--cream);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--cream);
  transition: transform 0.3s var(--ease-out), opacity 0.3s, background 0.3s;
}
#navbar.scrolled .hamburger span { background: var(--bark); }
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--cream);
  padding: 0 clamp(24px, 5vw, 64px) 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out), padding 0.3s;
}
.mobile-menu.open {
  display: flex;
  max-height: 400px;
  padding-top: 12px;
}
.mobile-link {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--earth);
  padding: 14px 0;
  border-bottom: 1px solid var(--warm);
}
.btn-mobile {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 14px 28px;
  background: var(--earth);
  color: var(--cream);
  text-align: center;
  transition: background 0.3s;
}
.btn-mobile:hover { background: var(--bark); }

/* ── Hero ── */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 20, 16, 0.72) 0%,
    rgba(61, 46, 34, 0.45) 60%,
    rgba(200, 184, 154, 0.1) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 0 clamp(24px, 6vw, 100px);
  margin-top: var(--nav-h);
}
.hero-content .eyebrow { color: var(--stone); }
.hero-content h1 { color: var(--cream); margin-bottom: 1.4rem; }
.hero-sub {
  color: rgba(249,245,240,0.72);
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  max-width: 480px;
  margin-bottom: 2.4rem;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: clamp(24px, 6vw, 100px);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 16px;
  color: rgba(249,245,240,0.5);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.scroll-line {
  width: 40px;
  height: 1px;
  background: rgba(249,245,240,0.35);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: var(--stone);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%   { left: -100%; }
  50%  { left: 0%; }
  100% { left: 100%; }
}

/* ── Services ── */
.services {
  padding: var(--section-gap) 0;
  background: var(--cream);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(48px, 6vw, 80px);
}
.section-header h2 { margin-top: 0; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3vw, 40px);
}

.service-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(61, 46, 34, 0.12);
  z-index: 2;
}

.service-img {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.service-img-inner {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 0.7s var(--ease-out);
}
.service-card:hover .service-img-inner { transform: scale(1.06); }

.service-body {
  padding: 28px 32px 36px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.service-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand);
  background: var(--warm);
  padding: 5px 12px;
  margin-bottom: 14px;
  align-self: flex-start;
}
.service-body h3 {
  margin-bottom: 12px;
  color: var(--bark);
}
.service-body p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.75;
  flex: 1;
}
.service-meta {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--warm);
  font-size: 0.78rem;
  color: var(--earth);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.services-cta {
  text-align: center;
  margin-top: clamp(48px, 6vw, 80px);
  padding-top: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--warm);
}
.services-cta p {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--muted);
  margin-bottom: 24px;
}

/* ── About ── */
.about {
  padding: var(--section-gap) 0;
  background: var(--warm);
}
.about-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
}

.about-img-wrap {
  position: relative;
  padding-bottom: 48px;
  padding-right: 48px;
}
.about-img-main {
  width: 100%;
  aspect-ratio: 3/4;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.about-img-accent {
  position: absolute;
  bottom: 0; right: 0;
  width: 48%;
  aspect-ratio: 1;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  border: 6px solid var(--warm);
}

.about-text h2 { margin-bottom: 1.4rem; }
.about-text p {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.2rem;
}
.about-values {
  margin: 28px 0 36px;
}
.about-values li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.88rem;
  color: var(--earth);
  padding: 10px 0;
  border-bottom: 1px solid rgba(200,184,154,0.4);
}
.value-dot {
  display: block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--stone);
  flex-shrink: 0;
}

/* ── Testimonials ── */
.testimonials {
  padding: clamp(60px, 8vw, 100px) 0;
  background: var(--bark);
}
.testimonials-track {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}
.testimonial {
  flex: 1;
}
.testimonial p {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-style: italic;
  color: rgba(249,245,240,0.8);
  line-height: 1.7;
  margin-bottom: 16px;
}
.testimonial cite {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}
.testimonial-divider {
  width: 1px;
  height: 100px;
  background: rgba(200,184,154,0.25);
  align-self: center;
  flex-shrink: 0;
}

/* ── Contact ── */
.contact {
  padding: var(--section-gap) 0;
  background: var(--cream);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}

.contact-info h2 { margin-bottom: 2rem; }
.contact-details {
  margin-bottom: 36px;
}
.contact-details li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--warm);
  font-size: 0.9rem;
}
.detail-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  padding-top: 3px;
}
.contact-details a {
  color: var(--earth);
  transition: color 0.25s;
}
.contact-details a:hover { color: var(--bark); }

.booking-card {
  background: var(--bark);
  color: var(--cream);
  padding: clamp(32px, 4vw, 52px);
}
.booking-card h3 {
  font-size: 1.6rem;
  color: var(--cream);
  margin-bottom: 16px;
}
.booking-card p {
  font-size: 0.88rem;
  color: rgba(249,245,240,0.7);
  line-height: 1.8;
  margin-bottom: 28px;
}
.booking-perks {
  margin-bottom: 32px;
}
.booking-perks li {
  font-size: 0.82rem;
  color: rgba(249,245,240,0.75);
  padding: 8px 0;
  border-bottom: 1px solid rgba(249,245,240,0.1);
  letter-spacing: 0.02em;
}

.btn-booking {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--stone);
  color: var(--bark);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 16px 32px;
  transition: background 0.3s, transform 0.25s var(--ease-out);
}
.btn-booking:hover {
  background: var(--cream);
  transform: translateY(-2px);
}

/* ── Footer ── */
.footer {
  background: var(--ink);
  padding: clamp(40px, 5vw, 60px) 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-brand .logo { color: var(--stone); font-size: 1.3rem; display: block; margin-bottom: 8px; }
.footer-brand p { font-size: 0.8rem; color: rgba(249,245,240,0.35); }

.footer-nav {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(249,245,240,0.45);
  transition: color 0.25s;
}
.footer-nav a:hover { color: var(--stone); }

.footer-copy {
  width: 100%;
  font-size: 0.72rem;
  color: rgba(249,245,240,0.2);
  text-align: center;
  margin-top: 8px;
}

/* ── Animations ── */
.fade-up, .fade-left, .fade-right {
  opacity: 0;
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.fade-up    { transform: translateY(36px); }
.fade-left  { transform: translateX(-48px); }
.fade-right { transform: translateX(48px); }

.fade-up.visible, .fade-left.visible, .fade-right.visible {
  opacity: 1;
  transform: translate(0);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner   { grid-template-columns: 1fr; }
  .about-visual  { order: -1; max-width: 500px; }
  .contact-grid  { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .btn-nav { display: none; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .testimonials-track { flex-direction: column; }
  .testimonial-divider { width: 60px; height: 1px; align-self: flex-start; margin-left: 0; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .about-img-wrap { max-width: 400px; }
}

@media (max-width: 480px) {
  .service-body { padding: 22px 20px 28px; }
  .contact-details li { grid-template-columns: 1fr; gap: 4px; }
}