/* ===== Design Tokens ===== */
:root {
  --ink: #16233d;
  --navy-dark: #0f1b30;
  --blue: #2f6fed;
  --blue-dark: #1d4fbe;
  --blue-soft: #eaf1ff;
  --coral: #ff7a59;
  --coral-soft: #ffece6;
  --teal: #14b8a6;
  --teal-soft: #e3faf6;
  --slate: #64748b;
  --slate-light: #94a3b8;
  --line: #e6ecf7;
  --bg: #ffffff;
  --bg-soft: #f6f9ff;
  --bg-mint: #f2fbf9;
  --radius: 20px;
  --radius-sm: 14px;
  --shadow: 0 20px 45px rgba(23, 43, 99, 0.1);
  --shadow-sm: 0 10px 24px rgba(23, 43, 99, 0.08);
  --max-width: 1180px;
  --font-head: 'Poppins', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* Prevent grid/flex items from forcing overflow via min-content on narrow viewports */
.hero-inner > *, .about-grid > *, .footer-grid > *, .quali-grid > *,
.expertise-grid > *, .why-grid > *, .pub-grid > *, .stats-grid > *,
.timeline-item, .appointment-grid > * { min-width: 0; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--blue);
  background: var(--blue-soft);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow.light { color: #fff; background: rgba(255,255,255,0.15); }

.section-head {
  max-width: 620px;
  margin: 0 auto 52px;
  text-align: center;
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); }
.section-head.light h2 { color: #fff; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-head);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.22s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  box-shadow: 0 12px 26px rgba(47, 111, 237, 0.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(47, 111, 237, 0.4); }
.btn-outline {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-block { width: 100%; }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
  padding: 18px 0;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(23,43,99,0.05); }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; font-family: var(--font-head); font-weight: 700; color: var(--ink); font-size: 1rem; }
.brand-text small { font-family: var(--font-body); font-weight: 500; font-size: 0.72rem; color: var(--slate); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-weight: 600; font-size: 0.92rem; color: var(--ink); transition: color 0.2s; display: flex; align-items: center; }
.nav-links a:hover { color: var(--blue); }
.nav-cta {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff !important;
  padding: 11px 22px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.hamburger { display: none; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; min-width: 44px; min-height: 44px; }
.hamburger span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: all 0.25s; }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 150px 0 0;
  background: linear-gradient(180deg, var(--bg-soft) 0%, #ffffff 65%);
  overflow: hidden;
}
.hero-bg-grid { display: none; }
.hero::before {
  content: '';
  position: absolute;
  top: -180px; right: -160px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47,111,237,0.16), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  top: 220px; left: -140px;
  width: 340px; height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,122,89,0.14), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 72px;
}
.hero-text .eyebrow { margin-bottom: 20px; }
.hero-text h1 { font-size: clamp(2.2rem, 4vw, 3.1rem); font-weight: 700; margin-bottom: 20px; }
.hero-text h1 span { color: var(--blue); }
.hero-sub { color: var(--slate); font-size: 1.05rem; max-width: 500px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-dark);
  background: var(--blue-soft);
  padding: 9px 16px;
  border-radius: 999px;
}

.hero-media { position: relative; display: flex; justify-content: center; }
.hero-photo-frame {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 4/5;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 6px solid #fff;
  position: relative;
  z-index: 2;
}
.hero-photo-frame::after { content: none; }
.hero-photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-badge {
  position: absolute;
  z-index: 3;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 10px;
}
.badge-icon { width: 34px; height: 34px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.badge-icon svg { width: 19px; height: 19px; }
.badge-icon.icon-blue { background: var(--blue-soft); color: var(--blue); }
.badge-icon.icon-star { background: #fff3d6; color: #f5a623; }
.hero-badge strong { display: block; font-family: var(--font-head); color: var(--ink); font-size: 0.92rem; }
.hero-badge small { color: var(--slate); font-size: 0.7rem; font-weight: 600; }
.hero-badge-top { top: 4%; left: -8%; }
.hero-badge-bottom { bottom: 6%; right: -10%; }

.hero-info-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: start;
  gap: 20px;
  position: relative;
  z-index: 2;
  padding-bottom: 70px;
}
.info-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
}
.info-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
}
.info-icon svg { width: 22px; height: 22px; }
.info-icon.icon-blue { background: var(--blue-soft); color: var(--blue); }
.info-icon.icon-coral { background: var(--coral-soft); color: var(--coral); }
.info-icon.icon-teal { background: var(--teal-soft); color: var(--teal); }
.info-card strong { display: block; font-family: var(--font-head); color: var(--ink); font-size: 0.92rem; margin-bottom: 3px; }
.info-card p { color: var(--slate); font-size: 0.82rem; }
.info-card-locations { grid-column: span 2; align-items: flex-start; }
.info-locations-list { display: flex; flex-direction: column; gap: 14px; width: 100%; }
.info-location-item { display: flex; align-items: center; gap: 14px; }
.info-location-item + .info-location-item { padding-top: 14px; border-top: 1px dashed var(--line); }
.info-icon-sm { width: 38px; height: 38px; border-radius: 11px; }
.info-icon-sm svg { width: 18px; height: 18px; }

/* ===== Stats ===== */
.stats {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  padding: 110px 0 60px;
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: '';
  position: absolute;
  bottom: -120px; right: 10%;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%);
}
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 24px; row-gap: 40px; text-align: center; position: relative; }
.stat-num { font-family: var(--font-head); font-size: clamp(2rem, 4vw, 2.6rem); font-weight: 700; color: #fff; }
.stat-plus { font-family: var(--font-head); font-size: 1.6rem; font-weight: 700; color: #ffd6c9; }
.stat p { color: rgba(255,255,255,0.75); font-size: 0.88rem; margin-top: 8px; }

/* ===== About ===== */
.about { padding: 100px 0; background: #fff; }
.about-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; align-items: center; }
.about-media { position: relative; border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); }
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.about-media-strip { position: absolute; bottom: 0; left: 0; right: 0; height: 6px; background: linear-gradient(90deg, var(--blue), var(--teal)); }
.about-content h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: 20px; }
.about-content p { color: var(--slate); margin-bottom: 16px; text-align: justify; text-align-last: left; hyphens: auto; }
.quali-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 28px 0; }
.quali-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.quali-card {
  border-radius: var(--radius-sm);
  padding: 20px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.quali-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--blue);
  background: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.quali-card strong { display: block; font-family: var(--font-head); color: var(--ink); font-size: 0.92rem; margin-bottom: 4px; }
.quali-card p { color: var(--slate); font-size: 0.8rem; }

.trust-row { border-top: 1px solid var(--line); padding-top: 22px; }
.trust-row > span { display: block; font-size: 0.82rem; font-weight: 600; color: var(--slate-light); margin-bottom: 12px; }
.trust-logos { display: flex; flex-wrap: wrap; gap: 10px 20px; }
.trust-logos span { font-family: var(--font-head); font-weight: 700; font-size: 0.85rem; color: var(--ink); opacity: 0.55; }

/* ===== Expertise ===== */
.expertise { padding: 100px 0; background: var(--bg-soft); position: relative; overflow: hidden; }
.expertise::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(20,184,166,0.1), transparent 70%);
  pointer-events: none;
}
.expertise-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.expertise-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  border: 1px solid var(--line);
}
.expertise-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.expertise-icon {
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 16px;
  margin-bottom: 20px;
}
.expertise-icon svg { width: 27px; height: 27px; }
.icon-blue { background: var(--blue-soft); color: var(--blue); }
.icon-coral { background: var(--coral-soft); color: var(--coral); }
.icon-teal { background: var(--teal-soft); color: var(--teal); }
.expertise-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.expertise-card p { color: var(--slate); font-size: 0.9rem; }

/* ===== Why ===== */
.why { padding: 100px 0; background: #fff; }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 30px 24px;
  border: 1px solid var(--line);
}
.why-num {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.why-card h3 { color: var(--ink); font-size: 1rem; margin-bottom: 10px; }
.why-card p { color: var(--slate); font-size: 0.88rem; }

/* ===== Timeline ===== */
.timeline { padding: 100px 0; background: var(--bg-mint); }
.timeline-track { position: relative; max-width: 780px; margin: 0 auto; }
.timeline-track::before {
  content: '';
  position: absolute;
  top: 8px; bottom: 8px; left: 7px;
  width: 2px;
  background: var(--line);
}
.timeline-item {
  position: relative;
  padding: 0 0 40px 44px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  top: 2px; left: 0;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--blue);
}
.timeline-dot-current { background: var(--coral); border-color: var(--coral); }
.timeline-year {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  background: var(--blue);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.timeline-body { background: #fff; border-radius: var(--radius-sm); padding: 18px 22px; box-shadow: var(--shadow-sm); }
.timeline-body h3 { font-size: 0.98rem; margin-bottom: 6px; }
.timeline-body p { color: var(--slate); font-size: 0.85rem; }

/* ===== Publications ===== */
.publications { padding: 100px 0; background: #fff; }
.pub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.pub-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 26px;
  border: 1px solid var(--line);
  transition: box-shadow 0.2s ease;
}
.pub-card:hover { box-shadow: var(--shadow-sm); }
.pub-card:last-child { grid-column: 1 / -1; }
.pub-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--teal);
  background: var(--teal-soft);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.pub-card h3 { font-size: 0.98rem; margin-bottom: 8px; font-weight: 700; }
.pub-card p { color: var(--slate); font-size: 0.84rem; }

/* ===== Locations ===== */
.locations { padding: 100px 0; background: var(--bg-mint); }
.locations-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.location-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.location-card h3 { font-family: var(--font-head); color: var(--ink); font-size: 1.05rem; }
.location-address, .location-hours { color: var(--slate); font-size: 0.86rem; }
.location-hours { font-weight: 600; color: var(--ink); }
.location-link { margin-top: 10px; align-self: flex-start; }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }

/* ===== Appointment ===== */
.appointment {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy-dark), #1a2f57);
  position: relative;
  overflow: hidden;
}
.appointment::before {
  content: '';
  position: absolute;
  top: -160px; right: -100px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47,111,237,0.25), transparent 70%);
}
.appointment-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; position: relative; }
.appointment-info, .appointment-form { min-width: 0; }
.appointment-info h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: 16px; }
.appointment-info p { color: rgba(255,255,255,0.65); margin-bottom: 28px; }
.appointment-contact li {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,0.9);
  font-size: 0.92rem;
  margin-bottom: 16px;
  background: rgba(255,255,255,0.06);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}
.contact-icon { width: 20px; height: 20px; flex-shrink: 0; display: inline-flex; color: #7fa8ff; }
.contact-icon svg { width: 100%; height: 100%; }
.appointment-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row label { min-width: 0; }
.appointment-form label { display: flex; flex-direction: column; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--ink); min-width: 0; }
.appointment-form input,
.appointment-form select,
.appointment-form textarea {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  font-family: var(--font-body);
  font-size: 16px;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink);
  min-height: 44px;
  resize: vertical;
}
.appointment-form input:focus,
.appointment-form select:focus,
.appointment-form textarea:focus { outline: none; border-color: var(--blue); background: #fff; }
.form-note { font-size: 0.85rem; font-weight: 600; color: var(--blue); text-align: center; min-height: 1.2em; }

/* ===== Footer ===== */
.footer { background: var(--navy-dark); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand { margin-bottom: 16px; }
.footer-brand .brand-text { color: #fff; }
.footer-grid > div:first-child p { color: rgba(255,255,255,0.55); font-size: 0.88rem; }
.footer h3 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.footer-grid a { display: block; color: rgba(255,255,255,0.6); font-size: 0.88rem; margin-bottom: 10px; transition: color 0.2s; }
.footer-grid a:hover { color: var(--teal); }
.footer-bottom { display: flex; justify-content: space-between; padding: 24px 0; color: rgba(255,255,255,0.45); font-size: 0.82rem; flex-wrap: wrap; gap: 8px; }
.footer-bottom a { color: var(--teal); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; margin: 0 auto 40px; max-width: 380px; }
  .hero-badge { display: none; }
  .hero-info-row { grid-template-columns: 1fr; padding-bottom: 50px; }
  .info-card-locations { grid-column: auto; }
  .about-grid { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .locations-grid { grid-template-columns: repeat(2, 1fr); }
  .pub-grid { grid-template-columns: 1fr; }
  .pub-card:last-child { grid-column: auto; }
  .appointment-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 78%; max-width: 320px; height: 100vh;
    background: #fff; flex-direction: column; justify-content: center; align-items: flex-start;
    padding: 40px; gap: 8px; transition: right 0.3s ease; box-shadow: -10px 0 40px rgba(0,0,0,0.12);
  }
  .nav-links.active { right: 0; }
  .nav-links a { min-height: 44px; font-size: 1.05rem; }
  .nav-links .nav-cta { margin-top: 12px; justify-content: center; }
  .hamburger { display: flex; }
  .hero { padding-top: 110px; }
  .hero-info-row { grid-template-columns: 1fr; }
  .stats { padding: 50px 0 40px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; row-gap: 28px; }
  .stat-num { font-size: 1.7rem; }
  .stat-plus { font-size: 1.2rem; }
  .stat p { font-size: 0.8rem; margin-top: 6px; }
  .expertise-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .locations-grid { grid-template-columns: 1fr; }
  .quali-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-badge-top, .hero-badge-bottom { display: none; }
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-fab {
  position: fixed;
  right: 24px;
  right: calc(24px + env(safe-area-inset-right, 0px));
  bottom: 24px;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.45);
  z-index: 300;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-fab:hover { transform: scale(1.08); box-shadow: 0 14px 30px rgba(37, 211, 102, 0.55); }
.whatsapp-fab.is-hidden { opacity: 0; pointer-events: none; transform: scale(0.6); }
.whatsapp-fab svg { width: 30px; height: 30px; position: relative; z-index: 1; }
.whatsapp-fab-ping {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25d366;
  opacity: 0.55;
  animation: whatsapp-ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes whatsapp-ping {
  0% { transform: scale(1); opacity: 0.55; }
  70% { transform: scale(1.7); opacity: 0; }
  100% { transform: scale(1.7); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .whatsapp-fab-ping { animation: none; display: none; }
}

@media (max-width: 480px) {
  .whatsapp-fab { width: 54px; height: 54px; right: 16px; right: calc(16px + env(safe-area-inset-right, 0px)); bottom: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
  .whatsapp-fab svg { width: 26px; height: 26px; }
}