/* ============================
   ARCHI VERT CONSTRUCTION PRO
   Design System — Light Luxury (Vert · Bleu · Blanc)
   ============================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,300;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ── CSS Variables ── */
:root {
  --white:       #ffffff;
  --off-white:   #f9fafb;
  --gray-50:     #f8fafc;
  --gray-100:    #f1f5f9;
  --gray-200:    #e2e8f0;
  --gray-300:    #cbd5e1;
  --gray-400:    #94a3b8;
  --gray-500:    #64748b;
  --gray-600:    #475569;
  --gray-700:    #334155;
  --gray-800:    #1e293b;
  --gray-900:    #0f172a;

  --emerald:     #1fa35c;        /* vert principal */
  --emerald-h:   #18c96e;
  --emerald-light: #d1fae5;
  --emerald-glow: rgba(31, 163, 92, 0.15);

  --blue:        #2a5cd8;        /* bleu accent */
  --blue-h:      #3b82f6;
  --blue-light:  #dbeafe;
  --blue-glow:   rgba(42, 92, 216, 0.15);

  --border:      var(--gray-200);
  --border-soft: var(--gray-300);
  --text-muted:  var(--gray-500);
  --text-mid:    var(--gray-600);
  --text-dark:   var(--gray-800);
  --text-white:  var(--gray-900);

  --radius:      14px;
  --radius-lg:   24px;
  --shadow-card: 0 4px 20px 0 rgba(0, 0, 0, 0.04), 0 1px 3px 0 rgba(0, 0, 0, 0.03);
  --shadow-hover:0 12px 30px -6px rgba(0, 0, 0, 0.08);
  --transition:  .3s cubic-bezier(.4,0,.2,1);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--white);
  color: var(--text-mid);
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ── Typography ── */
.display   { font-family: 'Cormorant Garamond', serif; }
h1, h2, h3, h4 { font-family: 'Cormorant Garamond', serif; line-height: 1.1; color: var(--text-dark); }
h1 { font-size: clamp(3rem, 6vw, 5.5rem); font-weight: 300; letter-spacing: -.02em; }
h2 { font-size: clamp(2.2rem, 4vw, 3.8rem); font-weight: 300; }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 600; }
p  { color: var(--text-mid); }

/* ── Layout Helpers ── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 3rem); }
.section { padding: clamp(5rem, 10vw, 9rem) 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px)  { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ── Pill / Tag ── */
.tag {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem 1rem; border-radius: 100px;
  font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--gray-50);
}
.tag.green { border-color: var(--emerald); color: var(--emerald); background: var(--emerald-light); }
.tag.blue  { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .85rem 2rem; border-radius: var(--radius);
  font-size: .92rem; font-weight: 500; letter-spacing: .01em;
  transition: var(--transition); cursor: pointer;
}
.btn-primary {
  background: var(--emerald); color: #fff;
  box-shadow: 0 6px 18px var(--emerald-glow);
}
.btn-primary:hover { background: var(--emerald-h); transform: translateY(-2px); box-shadow: 0 10px 25px var(--emerald-glow); }
.btn-outline {
  background: transparent; color: var(--text-dark);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--emerald); color: var(--emerald); }
.btn-ghost  { color: var(--emerald); padding: 0; gap: .4rem; font-weight: 500; }
.btn-ghost:hover .arrow { transform: translateX(4px); }
.arrow { display: inline-block; transition: transform var(--transition); }

/* Bouton bleu (variante) */
.btn-blue {
  background: var(--blue); color: #fff;
  box-shadow: 0 6px 18px var(--blue-glow);
}
.btn-blue:hover { background: var(--blue-h); box-shadow: 0 10px 25px var(--blue-glow); }

/* ── Divider ── */
.divider { width: 3rem; height: 2px; background: var(--emerald); margin: 1.5rem 0; }

/* ── ═══════════════════════ HEADER ══════════════════════════ ── */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
#site-header.scrolled { background: rgba(255, 255, 255, 0.97); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.logo img { height: 68px; width: auto; }
.nav-desktop { display: flex; align-items: center; gap: 2.2rem; }
.nav-desktop a {
  font-size: .88rem; font-weight: 400; letter-spacing: .03em;
  color: var(--text-mid); transition: color var(--transition);
  position: relative; padding-bottom: 2px;
}
.nav-desktop a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px; background: var(--emerald);
  transition: width var(--transition);
}
.nav-desktop a:hover { color: var(--text-dark); }
.nav-desktop a:hover::after { width: 100%; }
.nav-phone { color: var(--emerald); font-weight: 500; font-size: .88rem; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: .5rem; cursor: pointer; }
.hamburger span {
  display: block; width: 24px; height: 1.5px;
  background: var(--text-dark); transition: var(--transition);
}
.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-nav {
  display: none; position: fixed; inset: 0; top: 76px;
  background: var(--white); z-index: 998; padding: 2.5rem;
  flex-direction: column; gap: 1.5rem;
  border-top: 1px solid var(--border);
}
#mobile-nav.open { display: flex; }
#mobile-nav a { font-size: 1.4rem; color: var(--text-dark); font-family: 'Cormorant Garamond', serif; font-weight: 300; }
#mobile-nav a:hover { color: var(--emerald); }

@media (max-width: 1024px) { .nav-desktop { display: none; } .hamburger { display: flex; } }

/* ── ═══════════════════════ HERO ════════════════════════════ ── */
#hero {
  min-height: 100svh;
  display: grid; grid-template-columns: 1fr 1fr;
  position: relative; overflow: hidden;
  padding-top: 76px;
  background: var(--white);
}
.hero-left {
  display: flex; flex-direction: column; justify-content: center;
  padding: 8rem clamp(2rem,5vw,5rem) 8rem clamp(1.25rem,4vw,3rem);
  position: relative; z-index: 2;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--emerald); margin-bottom: 2rem;
}
.hero-eyebrow::before {
  content: ''; display: block; width: 2.5rem; height: 1px; background: var(--emerald);
}
.hero-title { margin-bottom: 1.5rem; }
.hero-title em { font-style: italic; color: var(--emerald); }
.hero-sub { font-size: 1.05rem; max-width: 480px; margin-bottom: 2.5rem; }
.hero-actions { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; margin-bottom: 3.5rem; }
.hero-stats {
  display: flex; gap: 2.5rem;
  padding-top: 2.5rem; border-top: 1px solid var(--border);
}
.stat-item { display: flex; flex-direction: column; }
.stat-number { font-family: 'Cormorant Garamond', serif; font-size: 2.2rem; font-weight: 300; color: var(--text-dark); line-height: 1; }
.stat-label  { font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); margin-top: .3rem; }

.hero-right {
  position: relative; overflow: hidden;
}
.hero-right img {
  width: 100%; height: 100%; object-fit: cover; object-position: center top;
  filter: brightness(.95) saturate(.9);
}
.hero-right::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to right, var(--white) 0%, transparent 30%),
              linear-gradient(to top, var(--white) 0%, transparent 20%);
}
.hero-badge {
  position: absolute; bottom: 3rem; left: 50%; transform: translateX(-50%);
  z-index: 2;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.25rem 2rem;
  display: flex; align-items: center; gap: 1rem;
  box-shadow: var(--shadow-card);
  white-space: nowrap;
}
.hero-badge-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--emerald); flex-shrink: 0; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100%{box-shadow:0 0 0 0 var(--emerald-glow)} 50%{box-shadow:0 0 0 8px transparent} }

@media (max-width: 768px) {
  #hero { grid-template-columns: 1fr; }
  .hero-right { height: 300px; }
  .hero-right::before { background: linear-gradient(to bottom, var(--white) 0%, transparent 20%), linear-gradient(to top, var(--white) 0%, transparent 20%); }
  .hero-badge { bottom: 1.5rem; }
  .hero-stats { gap: 1.5rem; }
}

/* ── ═══════════════════════ SERVICES ════════════════════════ ── */
#services { background: var(--gray-50); }
.section-header { margin-bottom: 4rem; }
.section-header h2 { margin: 1rem 0 1.2rem; }
.section-header p { max-width: 560px; font-size: 1.05rem; }

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-card);
}
.service-card:hover { border-color: var(--emerald); transform: translateY(-6px); box-shadow: var(--shadow-hover), 0 0 0 1px var(--emerald); }
.service-img { height: 220px; overflow: hidden; position: relative; }
.service-img img { width: 100%; height: 100%; object-fit: cover;transition: transform .6s ease; filter: brightness(.9) saturate(.8); }
.service-card:hover .service-img img { transform: scale(1.08); }
.service-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, var(--white) 0%, transparent 50%);
}
.service-badge {
  position: absolute; top: 1rem; left: 1rem;
  font-size: .68rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  padding: .3rem .75rem; border-radius: 100px;
  background: var(--emerald); color: #fff;
}
.service-body { padding: 1.75rem; }
.service-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--emerald-light); border: 1px solid var(--emerald);
  display: flex; align-items: center; justify-content: center;
  color: var(--emerald); margin-bottom: 1rem;
}
.service-body h3 { font-size: 1.25rem; margin-bottom: .6rem; }
.service-body p  { font-size: .9rem; margin-bottom: 1.25rem; }

/* ── ═══════════════════════ ABOUT ═══════════════════════════ ── */
#about { background: var(--white); }
.about-img-wrap { position: relative; }
.about-img-wrap img {
  width: 100%; height: 580px; object-fit: cover; border-radius: var(--radius-lg);
  filter: brightness(.95) saturate(.8);
}
.about-overlay-card {
  position: absolute; bottom: 2rem; left: -2rem;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem 2rem;
  display: flex; align-items: center; gap: 1.2rem;
  box-shadow: var(--shadow-card);
}
.about-overlay-card .big-num { font-family: 'Cormorant Garamond', serif; font-size: 3rem; font-weight: 300; color: var(--emerald); line-height: 1; }
.about-text { padding-left: 1rem; }
.about-text h2 { margin: 1.2rem 0 1.5rem; }
.about-text p  { margin-bottom: 1.2rem; font-size: 1rem; }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 2rem 0;
}
.about-feature {
  background: var(--gray-50); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  display: flex; align-items: flex-start; gap: .9rem;
}
.feature-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  border-radius: 8px; background: var(--emerald-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--emerald);
}
.about-feature h4 { font-family: 'DM Sans', sans-serif; font-size: .88rem; font-weight: 600; color: var(--text-dark); margin-bottom: .25rem; }
.about-feature p  { font-size: .82rem; }

@media (max-width: 768px) {
  .about-overlay-card { left: 1rem; right: 1rem; bottom: 1rem; }
  .about-grid { grid-template-columns: 1fr; }
  .about-text { padding-left: 0; }
}

/* ── ═══════════════════════ PRESTATIONS ════════════════════ ── */
#prestations { background: var(--gray-50); }
.presta-list { display: flex; flex-direction: column; gap: 1px; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.presta-item {
  display: flex; align-items: center; gap: 2rem;
  padding: 1.75rem 2rem;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: var(--transition); cursor: default;
  position: relative; overflow: hidden;
}
.presta-item::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--emerald);
  transform: scaleY(0); transition: transform var(--transition);
}
.presta-item:hover { background: var(--gray-50); padding-left: 2.5rem; }
.presta-item:hover::before { transform: scaleY(1); }
.presta-item:last-child { border-bottom: none; }
.presta-num { font-family: 'Cormorant Garamond', serif; font-size: 1.1rem; font-weight: 300; color: var(--text-muted); min-width: 2.5rem; }
.presta-icon {
  width: 48px; height: 48px; flex-shrink: 0; border-radius: var(--radius);
  background: var(--emerald-light); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--emerald); transition: var(--transition);
}
.presta-item:hover .presta-icon { background: var(--emerald); color: #fff; border-color: var(--emerald); }
.presta-info h3 { font-family: 'DM Sans', sans-serif; font-size: 1rem; font-weight: 500; color: var(--text-dark); margin-bottom: .3rem; }
.presta-info p  { font-size: .85rem; }
.presta-arrow { margin-left: auto; color: var(--text-muted); transition: var(--transition); }
.presta-item:hover .presta-arrow { color: var(--emerald); transform: translateX(4px); }

/* ── ═══════════════════════ RÉALISATIONS ═══════════════════ ── */
#realisations { background: var(--white); }
.real-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.25rem;
}
.real-card {
  border-radius: var(--radius-lg); overflow: hidden;
  position: relative; cursor: pointer;
  box-shadow: var(--shadow-card);
}
.real-card:first-child { grid-column: span 2; grid-row: span 2; min-height: 420px; }
.real-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; min-height: 200px; }
.real-card:first-child img { min-height: 100%; }
.real-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.7) 0%, transparent 50%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 1.75rem;
  opacity: 0; transition: opacity var(--transition);
}
.real-card:hover .real-overlay { opacity: 1; }
.real-card:hover img { transform: scale(1.06); }
.real-overlay h4 { color: #fff; font-size: 1.1rem; margin-bottom: .3rem; }
.real-overlay p  { color: rgba(255,255,255,.75); font-size: .82rem; }

@media (max-width: 768px) {
  .real-grid { grid-template-columns: 1fr 1fr; }
  .real-card:first-child { grid-column: span 2; min-height: 260px; }
}

/* ── ═══════════════════════ TÉMOIGNAGES ════════════════════ ── */
#temoignages { background: var(--gray-50); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 768px) { .testi-grid { grid-template-columns: 1fr; } }
.testi-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem;
  display: flex; flex-direction: column; gap: 1rem;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}
.testi-card:hover { border-color: var(--blue); box-shadow: var(--shadow-hover); }
.testi-stars { display: flex; gap: .25rem; }
.testi-stars svg { color: #fbbf24; } /* étoiles dorées conservées pour lisibilité */
.testi-quote { font-family: 'Cormorant Garamond', serif; font-size: 1.2rem; font-weight: 300; color: var(--text-dark); line-height: 1.5; font-style: italic; flex: 1; }
.testi-author { display: flex; align-items: center; gap: .75rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.testi-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--blue-light); border: 1px solid var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Cormorant Garamond', serif; font-size: 1.3rem; color: var(--blue);
}
.testi-name { font-size: .88rem; font-weight: 600; color: var(--text-dark); }
.testi-role { font-size: .78rem; color: var(--text-muted); }

/* ── ═══════════════════════ CONTACT ════════════════════════ ── */
#contact { background: var(--white); }
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 4rem;
}
@media (max-width: 768px) { .contact-wrap { grid-template-columns: 1fr; } }
.contact-info h2 { margin: 1rem 0 1.5rem; }
.contact-info p  { font-size: 1rem; margin-bottom: 2.5rem; }
.contact-detail  { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-item {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1.25rem; border-radius: var(--radius);
  background: var(--gray-50); border: 1px solid var(--border);
}
.contact-icon {
  width: 42px; height: 42px; flex-shrink: 0; border-radius: 10px;
  background: var(--emerald-light); display: flex; align-items: center; justify-content: center;
  color: var(--emerald);
}
.contact-item strong { display: block; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: .3rem; }
.contact-item a, .contact-item span { color: var(--text-dark); font-size: .95rem; }
.contact-item a:hover { color: var(--emerald); }

/* Contact Form */
.contact-form {
  background: var(--gray-50); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2.5rem;
  box-shadow: var(--shadow-card);
}
.contact-form h3 { font-size: 1.5rem; margin-bottom: .5rem; }
.contact-form > p { font-size: .9rem; margin-bottom: 2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: .78rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: .5rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: .85rem 1.1rem; font-size: .95rem;
  color: var(--text-dark); font-family: inherit;
  transition: border-color var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--emerald);
  box-shadow: 0 0 0 3px var(--emerald-glow);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-success { display: none; text-align: center; padding: 2rem; color: var(--emerald); }
.form-success svg { margin: 0 auto 1rem; }
.form-error { display: none; color: #dc2626; font-size: .85rem; margin-top: .4rem; }

/* ── ═══════════════════════ CTA BAND ═══════════════════════ ── */
#cta-band {
  background: var(--blue);
  padding: 5rem 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: clamp(2rem, 4vw, 3rem); }
.cta-inner p   { color: rgba(255,255,255,.85); margin-top: .5rem; }
.btn-cta-white { background: #fff; color: var(--blue); font-weight: 600; }
.btn-cta-white:hover { background: rgba(255,255,255,.9); transform: translateY(-2px); }

/* ── ═══════════════════════ FOOTER ═════════════════════════ ── */
#footer { background: var(--gray-50); border-top: 1px solid var(--border); padding: 5rem 0 2.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 4rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { height: 100px; margin-bottom: 1.25rem; }
.footer-brand p { font-size: .9rem; max-width: 280px; }
.footer-col h4 { font-family: 'DM Sans', sans-serif; font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 1.25rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .75rem; }
.footer-col ul a { font-size: .9rem; color: var(--text-mid); transition: color var(--transition); }
.footer-col ul a:hover { color: var(--emerald); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 2rem; border-top: 1px solid var(--border); gap: 1rem; flex-wrap: wrap; }
.footer-bottom p { font-size: .82rem; color: var(--text-muted); }
.footer-socials { display: flex; gap: .75rem; }
.social-btn {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--white); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: var(--transition);
}
.social-btn:hover { background: var(--emerald); border-color: var(--emerald); color: #fff; }

/* ── WhatsApp Float ── */
#wa-btn {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 997;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 32px rgba(37,211,102,.4);
  transition: var(--transition);
}
#wa-btn:hover { transform: scale(1.1); box-shadow: 0 12px 40px rgba(37,211,102,.55); }

/* ── Scroll to Top ── */
#scroll-top {
  position: fixed; bottom: 5.5rem; right: 2rem; z-index: 997;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--white); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); cursor: pointer; opacity: 0; pointer-events: none;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}
#scroll-top.visible { opacity: 1; pointer-events: auto; }
#scroll-top:hover { background: var(--emerald); border-color: var(--emerald); color: #fff; }

/* ── Animations ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }