/* ========================================
   Len'nickel — Style clair & moderne
   ======================================== */

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

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-bg-card: #ffffff;
  --color-text: #1a1a2e;
  --color-text-secondary: #5a5a7a;
  --color-text-muted: #8e8ea0;
  --color-accent: #2563eb;
  --color-accent-light: #3b82f6;
  --color-accent-bg: #eff6ff;
  --color-border: #e5e7eb;
  --color-success: #16a34a;
  --color-danger: #dc2626;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 6px 16px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.08), 0 20px 40px rgba(0,0,0,0.06);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-accent-light);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* --- Typography --- */
h1, h2, h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.15rem; }

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
}

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

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-instagram {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
  border: none;
  padding: 0.85rem 2rem;
}

.btn-instagram:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(220, 39, 67, 0.3);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* --- Header --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px rgba(0,0,0,0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-text);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-menu a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-menu a:hover {
  color: var(--color-accent);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
  border-radius: 2px;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--color-accent-bg);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-text);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- Sections --- */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  background: var(--color-accent-bg);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-top: 0.75rem;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
}

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

.service-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.service-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}

.service-card h3 {
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Before/After Slider --- */
.realisation-item {
  margin-bottom: 4rem;
}

.realisation-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.realisation-desc {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.before-after {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  cursor: col-resize;
  aspect-ratio: 4/3;
  max-width: 900px;
  margin: 0 auto;
}

.before-after img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ba-before {
  z-index: 2;
  clip-path: inset(0 50% 0 0);
}

.ba-after {
  z-index: 1;
}

.ba-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
  transform: translateX(-50%);
}

.ba-handle-line {
  flex: 1;
  width: 3px;
  background: #fff;
  box-shadow: 0 0 6px rgba(0,0,0,0.3);
}

.ba-handle-circle {
  width: 44px;
  height: 44px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  flex-shrink: 0;
}

.ba-handle-circle svg {
  width: 16px;
  height: 16px;
  color: var(--color-text);
}

.ba-range {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  opacity: 0;
  cursor: col-resize;
  -webkit-appearance: none;
  appearance: none;
}

.ba-label {
  position: absolute;
  top: 1rem;
  z-index: 3;
  padding: 0.3rem 0.85rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ba-label-before {
  left: 1rem;
  background: var(--color-danger);
  color: #fff;
}

.ba-label-after {
  right: 1rem;
  background: var(--color-success);
  color: #fff;
}

/* Before/After Split (matelas) */
.before-after-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.split-panel {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 3/4;
}

.split-panel img,
.split-panel video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-panel .ba-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
}

.split-before .ba-label {
  background: var(--color-danger);
  color: #fff;
}

.split-after .ba-label {
  background: var(--color-success);
  color: #fff;
}

/* Instagram CTA */
.insta-cta {
  text-align: center;
  padding-top: 2rem;
}

.insta-cta p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

.about-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.about-content h2 {
  margin-bottom: 1rem;
}

.about-content p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.highlight {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.highlight svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 0;
}

.info-item:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}

.info-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.info-item strong {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.info-item a,
.info-item span {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}

.info-item a:hover {
  color: var(--color-accent);
}

.map-embed iframe {
  width: 100%;
  border-radius: var(--radius);
}

.map-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.85rem;
  padding: 0.65rem 1.2rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-bg);
  border: 1px solid transparent;
  transition: all var(--transition);
}

.map-link:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-1px);
}

/* --- Contact Form --- */
.contact-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* --- Footer --- */
footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 3rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  width: 100%;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* --- Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- Mobile --- */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    transition: transform var(--transition);
    z-index: 999;
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .nav-menu a {
    padding: 0.75rem 0;
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero {
    min-height: auto;
    padding: 8rem 0 3rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    text-align: center;
    justify-content: center;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image img {
    aspect-ratio: 1;
    max-width: 280px;
    margin: 0 auto;
    border-radius: 50%;
  }

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

  .about-highlights {
    grid-template-columns: 1fr;
    text-align: left;
  }

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

  .before-after-split {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.5rem 0;
  }

  .footer-links {
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

  .hero-stats {
    flex-direction: column;
    gap: 0.75rem;
  }

  .stat {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }
}