/* ==========================================================================
   AsterCTI — Homepage Stylesheet
   TechExtension | astercti.techextension.com
   Bootstrap 5 is used for grid/utilities/components. This file layers a
   custom design system on top: tokens, typography, and bespoke sections.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Color — Corporate Blue family */
  --navy-950: #081627;
  --navy-900: #0B2038;
  --blue-900: #0F3D63;
  --blue-700: #144E82;
  --blue-600: #1B5FA8;
  --blue-500: #2472C9;
  --blue-100: #E8F1FB;
  --blue-050: #F3F8FD;

  /* Color — TechExtension Orange (accent, used sparingly) */
  --orange-600: #D96F02;
  --orange-500: #F5820D;
  --orange-100: #FDEBD6;

  /* Neutrals */
  --gray-900: #14202E;
  --gray-700: #3C4B5C;
  --gray-500: #6B7A8C;
  --gray-300: #C7D0DA;
  --gray-100: #EEF2F6;
  --gray-050: #F6F8FA;
  --white: #FFFFFF;

  /* Typography */
  --font-display: 'Sora', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Radius & shadow */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-soft: 0 4px 24px rgba(11, 32, 56, 0.06);
  --shadow-mid: 0 12px 40px rgba(11, 32, 56, 0.10);
  --shadow-lift: 0 20px 60px rgba(11, 32, 56, 0.16);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* --------------------------------------------------------------------------
   2. BASE
   -------------------------------------------------------------------------- */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

h1, h2, h3, h4, .display-font {
  font-family: var(--font-display);
  color: var(--navy-900);
  font-weight: 700;
  letter-spacing: -0.02em;
}

p { color: var(--gray-700); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange-500);
  display: inline-block;
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  margin-bottom: 0.75rem;
}
.section-subtitle {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 620px;
}

a { text-decoration: none; }
:focus-visible {
  outline: 2.5px solid var(--orange-500);
  outline-offset: 3px;
}

.bg-soft { background: var(--gray-050); }
.bg-navy { background: var(--navy-950); }

.section-pad { padding: 5.5rem 0; }
@media (max-width: 767.98px) {
  .section-pad { padding: 3.5rem 0; }
}

/* --------------------------------------------------------------------------
   3. BUTTONS
   -------------------------------------------------------------------------- */
.btn { font-family: var(--font-body); font-weight: 600; border-radius: 999px; padding: 0.75rem 1.6rem; transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background 0.25s var(--ease-out); }

.btn-primary-cta {
  background: var(--orange-500);
  border: none;
  color: var(--white);
  box-shadow: 0 8px 20px rgba(245, 130, 13, 0.28);
}
.btn-primary-cta:hover, .btn-primary-cta:focus {
  background: var(--orange-600);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(245, 130, 13, 0.36);
}

.btn-outline-navy {
  border: 1.5px solid rgba(255,255,255,0.35);
  color: var(--white);
  background: transparent;
}
.btn-outline-navy:hover { background: rgba(255,255,255,0.1); color: var(--white); transform: translateY(-2px); }

.btn-ghost-blue {
  border: 1.5px solid var(--blue-100);
  color: var(--blue-700);
  background: var(--white);
}
.btn-ghost-blue:hover { background: var(--blue-050); border-color: var(--blue-500); color: var(--blue-700); transform: translateY(-2px); }

.btn-sm-pill { padding: 0.5rem 1.15rem; font-size: 0.9rem; }

/* --------------------------------------------------------------------------
   4. HEADER / NAV
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1030;
  padding: 0.85rem 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out), padding 0.3s var(--ease-out);
}
.site-header.is-scrolled {
  box-shadow: 0 6px 24px rgba(11,32,56,0.08);
  border-bottom-color: var(--gray-100);
  padding: 0.55rem 0;
}

.brand-mark { display: flex; align-items: center; gap: 0.55rem; font-family: var(--font-display); font-weight: 700; font-size: 1.28rem; color: var(--navy-900); }
.brand-mark .brand-dot { color: var(--orange-500); }

.main-nav .nav-link {
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.9rem;
  position: relative;
}
.main-nav .nav-link:hover { color: var(--blue-700); }
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 0.9rem; right: 0.9rem; bottom: 0.28rem;
  height: 2px;
  background: var(--orange-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease-out);
}
.main-nav .nav-link:hover::after { transform: scaleX(1); }

/* --------------------------------------------------------------------------
   5. HERO — signature "call bridge" visual
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: radial-gradient(ellipse 120% 80% at 15% -10%, #123a5e 0%, var(--navy-950) 55%);
  padding: 9.5rem 0 6rem;
  overflow: hidden;
  color: var(--white);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 70% 60% at 30% 20%, black 0%, transparent 75%);
  pointer-events: none;
}
.hero-copy { position: relative; z-index: 2; }
.hero-copy .eyebrow { color: #8FC3F5; }
.hero-copy .eyebrow::before { background: var(--orange-500); }

.hero-title { font-size: clamp(2.2rem, 4.4vw, 3.4rem); line-height: 1.12; color: var(--white); }
.hero-title .accent { color: var(--orange-500); }
.hero-subtitle { color: #C4D6E8; font-size: 1.12rem; max-width: 560px; margin: 1.25rem 0 2rem; }

.hero-trust-line { color: #7C93AB; font-size: 0.85rem; margin-top: 1.75rem; letter-spacing: 0.02em; }

/* Call-bridge diagram */
.bridge-stage {
  position: relative;
  z-index: 2;
  height: 420px;
}
.bridge-node {
  position: absolute;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  backdrop-filter: blur(6px);
  padding: 0.9rem 1.1rem;
  display: flex; align-items: center; gap: 0.65rem;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.bridge-node .node-icon {
  width: 34px; height: 34px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-600); flex-shrink: 0;
}
.node-pbx { top: 6%; left: 2%; }
.node-crm { top: 6%; right: 2%; }
.node-pbx .node-icon, .node-crm .node-icon { background: var(--blue-700); }

.bridge-hub {
  position: absolute;
  top: 40%; left: 50%;
  transform: translate(-50%, -50%);
  width: 128px; height: 128px;
  border-radius: 30px;
  background: linear-gradient(160deg, var(--orange-500), var(--orange-600));
  box-shadow: 0 0 0 10px rgba(245,130,13,0.10), 0 20px 50px rgba(245,130,13,0.35);
  display: flex; align-items: center; justify-content: center;
  animation: hubPulse 3.2s ease-in-out infinite;
}
@keyframes hubPulse {
  0%, 100% { box-shadow: 0 0 0 10px rgba(245,130,13,0.10), 0 20px 50px rgba(245,130,13,0.35); }
  50% { box-shadow: 0 0 0 18px rgba(245,130,13,0.05), 0 20px 60px rgba(245,130,13,0.45); }
}

.bridge-line {
  position: absolute;
  top: 50%; height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,0.05), rgba(143,195,245,0.55), rgba(255,255,255,0.05));
  overflow: hidden;
}
.bridge-line::after {
  content: "";
  position: absolute; top: 0; left: -30%;
  width: 30%; height: 100%;
  background: linear-gradient(90deg, transparent, #8FC3F5, transparent);
  animation: travel 2.6s linear infinite;
}
.bridge-line.right::after { animation-delay: 1.3s; }

@keyframes travel {
  0% { left: -30%; }
  100% { left: 100%; }
}

.popup-card {
  position: absolute;
  bottom: 4%; left: 50%;
  transform: translateX(-50%);
  width: 260px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  padding: 1rem 1.1rem;
  color: var(--gray-900);
  animation: floatUp 4s ease-in-out infinite;
}
@keyframes floatUp {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, -10px); }
}
.popup-card .call-tag {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  color: #1C9A5B; background: #E6F6EC; padding: 0.2rem 0.55rem; border-radius: 999px;
}
.popup-card .call-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: #1C9A5B; animation: blink 1.4s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
.popup-card h6 { font-family: var(--font-display); margin: 0.5rem 0 0.1rem; font-size: 0.98rem; }
.popup-card .call-meta { font-size: 0.78rem; color: var(--gray-500); font-family: var(--font-mono); }

@media (max-width: 991.98px) {
  .bridge-stage { height: 340px; margin-top: 2.5rem; }
  .bridge-node { font-size: 0.72rem; padding: 0.6rem 0.75rem; }
  .bridge-hub { width: 96px; height: 96px; }
  .popup-card { width: 210px; }
}

/* --------------------------------------------------------------------------
   6. TRUSTED TECHNOLOGIES — logo/badge cards
   -------------------------------------------------------------------------- */
.tech-strip { padding: 3.2rem 0; border-bottom: 1px solid var(--gray-100); }
.tech-strip .strip-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-500); text-align: center; margin-bottom: 1.75rem; }

.badge-card {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  background: var(--white);
  padding: 0.9rem 0.6rem;
  text-align: center;
  height: 100%;
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}
.badge-card:hover { border-color: var(--blue-500); transform: translateY(-3px); box-shadow: var(--shadow-soft); }
.badge-card .badge-initial {
  width: 38px; height: 38px; border-radius: 10px; margin: 0 auto 0.5rem;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-050); color: var(--blue-700);
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
}
.badge-card span { font-size: 0.82rem; font-weight: 600; color: var(--gray-900); }

/* --------------------------------------------------------------------------
   7. FEATURE CARDS (Why Choose / Product Features)
   -------------------------------------------------------------------------- */
.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 1.9rem 1.6rem;
  height: 100%;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-mid); border-color: transparent; }
.feature-icon {
  width: 50px; height: 50px; border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-050); color: var(--blue-700);
  margin-bottom: 1.15rem;
}
.feature-card h5 { font-family: var(--font-display); font-size: 1.08rem; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.92rem; margin-bottom: 0; }

/* --------------------------------------------------------------------------
   8. HOW IT WORKS — sequential timeline (numbering justified: real process)
   -------------------------------------------------------------------------- */
.timeline-wrap { position: relative; }
.timeline-track {
  position: absolute;
  top: 34px; left: 0; right: 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--gray-300) 0 8px, transparent 8px 16px);
  display: none;
}
@media (min-width: 992px) { .timeline-track { display: block; } }

.timeline-step { position: relative; text-align: center; padding-top: 0; }
.step-num {
  width: 68px; height: 68px; border-radius: 50%;
  background: var(--navy-900);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 1.3rem; font-weight: 600;
  margin: 0 auto 1.25rem;
  position: relative; z-index: 2;
  border: 5px solid var(--white);
  box-shadow: var(--shadow-soft);
}
.timeline-step:nth-child(2) .step-num { background: var(--blue-700); }
.timeline-step:nth-child(3) .step-num { background: var(--blue-600); }
.timeline-step:nth-child(4) .step-num { background: var(--orange-500); }
.timeline-step h5 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 0.4rem; }
.timeline-step p { font-size: 0.88rem; padding: 0 0.5rem; }

/* --------------------------------------------------------------------------
   9. INDUSTRIES
   -------------------------------------------------------------------------- */
.industry-card {
  border-radius: var(--radius-md);
  padding: 1.6rem 1.2rem;
  background: var(--white);
  border: 1px solid var(--gray-100);
  text-align: center;
  height: 100%;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}
.industry-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.industry-card .industry-icon { width: 44px; height: 44px; margin: 0 auto 0.9rem; color: var(--blue-700); }
.industry-card span { font-weight: 600; font-size: 0.9rem; }

/* --------------------------------------------------------------------------
   10. WHY TECHEXTENSION
   -------------------------------------------------------------------------- */
.value-row { display: flex; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--gray-100); }
.value-row:last-child { border-bottom: none; }
.value-icon {
  width: 42px; height: 42px; border-radius: 11px; flex-shrink: 0;
  background: var(--orange-100); color: var(--orange-600);
  display: flex; align-items: center; justify-content: center;
}
.value-row h6 { font-family: var(--font-display); margin-bottom: 0.2rem; font-size: 1rem; }
.value-row p { font-size: 0.88rem; margin-bottom: 0; }

.stat-panel {
  background: var(--navy-950);
  border-radius: var(--radius-lg);
  color: var(--white);
  padding: 2.4rem;
}
.stat-item { text-align: center; }
.stat-item .stat-num { font-family: var(--font-display); font-size: 2.1rem; color: var(--orange-500); font-weight: 700; }
.stat-item .stat-label { font-size: 0.8rem; color: #9FB4C8; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; }

/* --------------------------------------------------------------------------
   11. SCREENSHOTS
   -------------------------------------------------------------------------- */
.screenshot-viewport { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lift); border: 8px solid var(--white); outline: 1px solid var(--gray-100); }
.screenshot-frame { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--blue-050), var(--blue-100)); display: flex; align-items: center; justify-content: center; }
.screenshot-thumbs { display: flex; gap: 0.75rem; margin-top: 1rem; justify-content: center; flex-wrap: wrap; }
.screenshot-thumbs button {
  width: 84px; height: 52px; border-radius: 8px; border: 2px solid var(--gray-100);
  background: var(--blue-050); cursor: pointer; padding: 0; transition: border-color 0.2s;
}
.screenshot-thumbs button.active, .screenshot-thumbs button:hover { border-color: var(--orange-500); }

/* --------------------------------------------------------------------------
   12. VIDEO
   -------------------------------------------------------------------------- */
.video-panel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/7.2;
  background: linear-gradient(135deg, var(--navy-950), var(--blue-900));
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lift);
}
.play-btn {
  width: 82px; height: 82px; border-radius: 50%;
  background: var(--orange-500); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  border: none; cursor: pointer;
  box-shadow: 0 0 0 0 rgba(245,130,13,0.5);
  animation: playPulse 2.4s infinite;
}
@keyframes playPulse {
  0% { box-shadow: 0 0 0 0 rgba(245,130,13,0.45); }
  70% { box-shadow: 0 0 0 22px rgba(245,130,13,0); }
  100% { box-shadow: 0 0 0 0 rgba(245,130,13,0); }
}

/* --------------------------------------------------------------------------
   13. PRICING
   -------------------------------------------------------------------------- */
.pricing-card {
  background: var(--white);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  position: relative;
  overflow: hidden;
}
.pricing-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: linear-gradient(90deg, var(--blue-600), var(--orange-500));
}
.price-tag { font-family: var(--font-display); font-size: 2.6rem; color: var(--navy-900); font-weight: 700; }
.price-tag .cur { font-size: 1.2rem; vertical-align: top; color: var(--gray-500); }
.price-list { list-style: none; padding: 0; margin: 1.5rem 0; }
.price-list li { display: flex; align-items: flex-start; gap: 0.6rem; padding: 0.45rem 0; font-size: 0.94rem; color: var(--gray-700); }
.price-list li svg { color: #1C9A5B; flex-shrink: 0; margin-top: 3px; }
.renewal-note { background: var(--blue-050); border-radius: var(--radius-sm); padding: 0.9rem 1.1rem; font-size: 0.86rem; color: var(--blue-700); }

/* --------------------------------------------------------------------------
   14. TESTIMONIALS
   -------------------------------------------------------------------------- */
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 1.9rem;
  height: 100%;
}
.testimonial-card .stars { color: var(--orange-500); font-size: 0.85rem; margin-bottom: 0.75rem; }
.testimonial-card p { font-size: 0.94rem; color: var(--gray-700); }
.testimonial-author { display: flex; align-items: center; gap: 0.7rem; margin-top: 1.2rem; }
.author-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--blue-600); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem;
}
.author-meta strong { display: block; font-size: 0.88rem; color: var(--navy-900); }
.author-meta span { font-size: 0.78rem; color: var(--gray-500); }

/* --------------------------------------------------------------------------
   15. FAQ ACCORDION
   -------------------------------------------------------------------------- */
.faq-accordion .accordion-item {
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm) !important;
  margin-bottom: 0.85rem;
  overflow: hidden;
}
.faq-accordion .accordion-button {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--navy-900);
  background: var(--white);
  padding: 1.15rem 1.4rem;
}
.faq-accordion .accordion-button:not(.collapsed) { color: var(--blue-700); background: var(--blue-050); box-shadow: none; }
.faq-accordion .accordion-button:focus { box-shadow: none; outline: 2.5px solid var(--orange-500); outline-offset: -2px; }
.faq-accordion .accordion-body { font-size: 0.92rem; color: var(--gray-700); padding: 0 1.4rem 1.3rem; }

/* --------------------------------------------------------------------------
   16. FINAL CTA
   -------------------------------------------------------------------------- */
.final-cta {
  background: linear-gradient(120deg, var(--blue-900), var(--navy-950) 70%);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.final-cta::after {
  content: "";
  position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(245,130,13,0.25), transparent 70%);
  top: -120px; right: -80px;
}
.final-cta h2 { color: var(--white); }
.final-cta p { color: #C4D6E8; }

/* --------------------------------------------------------------------------
   17. FOOTER
   -------------------------------------------------------------------------- */
.site-footer { background: var(--navy-950); color: #B7C6D6; padding: 4.5rem 0 1.5rem; }
.site-footer h6 { color: var(--white); font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 1.1rem; }
.site-footer a.footer-link { color: #B7C6D6; font-size: 0.9rem; display: block; margin-bottom: 0.6rem; transition: color 0.2s; }
.site-footer a.footer-link:hover { color: var(--orange-500); }
.footer-brand { color: var(--white); font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.footer-contact-item { display: flex; gap: 0.6rem; font-size: 0.88rem; margin-bottom: 0.7rem; color: #B7C6D6; }
.social-icon {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  color: var(--white); transition: background 0.2s, transform 0.2s;
}
.social-icon:hover { background: var(--orange-500); transform: translateY(-2px); }
.pay-badge {
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 8px; padding: 0.35rem 0.7rem;
  font-size: 0.78rem; color: #C4D6E8; font-family: var(--font-mono);
}
.footer-divider { border-color: rgba(255,255,255,0.1); margin: 2.5rem 0 1.5rem; }
.footer-bottom { font-size: 0.82rem; color: #7C93AB; }

/* --------------------------------------------------------------------------
   18. SCROLL REVEAL
   -------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* --------------------------------------------------------------------------
   19. WHATSAPP FLOAT
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 1040;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25D366; color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.45);
  transition: transform 0.25s var(--ease-out);
}
.whatsapp-float:hover { transform: scale(1.08); color: var(--white); }

/* --------------------------------------------------------------------------
   20. BACKGROUND UTILITIES
   -------------------------------------------------------------------------- */
.divider-fade { height: 1px; background: linear-gradient(90deg, transparent, var(--gray-300), transparent); }