/* =========================================================
   Costa Rica Holística Dental — hoja de estilos principal
   ========================================================= */
:root {
  --primary: #1d6fa5;
  --primary-dark: #14527c;
  --primary-soft: #e9f3fa;
  --sage: #5f8f72;
  --sage-soft: #eef5f0;
  --tint-blue: #eef6fc;
  --tint-green: #eef7f1;
  --ink: #1d2a33;
  --muted: #5a6872;
  --line: #e2e8ed;
  --white: #ffffff;
  --wa: #25d366;
  --wa-dark: #1da851;
  --danger: #b42318;
  --ok: #1e7a46;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(20, 50, 80, .08);
  --shadow-lg: 0 18px 50px rgba(20, 50, 80, .14);
  --font-body: "Nunito Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-head: "Lora", Georgia, "Times New Roman", serif;
  --header-h: 84px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body {
  margin: 0; font-family: var(--font-body); font-size: 17px; line-height: 1.65;
  color: var(--ink); background: var(--white); overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--primary-dark); }
h1, h2, h3 { font-family: var(--font-head); font-weight: 600; line-height: 1.2; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid #f2b705; outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 1000; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }

.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  color: var(--sage); margin-bottom: .6rem;
}
.lead { font-size: 1.12rem; color: var(--muted); max-width: 760px; }
.section-head { margin-bottom: 2.4rem; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .8em 1.5em; border-radius: 999px; border: 2px solid transparent;
  font: 700 1rem/1.2 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background .2s, color .2s, transform .15s, box-shadow .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-lg { padding: 1em 1.8em; font-size: 1.05rem; }
.btn-sm { padding: .55em 1.1em; font-size: .92rem; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(29, 111, 165, .25); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-whatsapp { background: var(--wa); color: #0b3d20; }
.btn-whatsapp:hover { background: var(--wa-dark); color: #fff; }

/* ---------- Barra superior y encabezado ---------- */
.topbar { background: var(--primary-dark); color: #dbe9f4; font-size: .88rem; }
.topbar-inner { display: flex; justify-content: flex-end; gap: 1rem; padding-top: 6px; padding-bottom: 6px; }
.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
.topbar a:hover { text-decoration: underline; }
.topbar-links { display: flex; gap: 1.4rem; }

.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid transparent; transition: box-shadow .2s, border-color .2s;
}
.site-header.scrolled { box-shadow: 0 6px 20px rgba(20, 50, 80, .08); border-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); }
.brand img { width: 150px; height: auto; }
.main-nav ul { display: flex; align-items: center; gap: .2rem; list-style: none; margin: 0; padding: 0; }
.main-nav a { display: block; padding: .5rem .75rem; color: var(--ink); text-decoration: none; font-weight: 600; font-size: .97rem; border-radius: 8px; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--primary); background: var(--primary-soft); }
.main-nav .nav-lang a { color: var(--sage); font-weight: 800; }
.main-nav .nav-cta { margin-left: .5rem; }
.main-nav .nav-cta .btn { color: #fff; }
.main-nav .nav-cta .btn:hover { background: var(--primary-dark); color: #fff; }

.nav-toggle { display: none; width: 46px; height: 46px; border: 0; background: var(--primary-soft); border-radius: 12px; cursor: pointer; position: relative; }
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  position: absolute; left: 12px; width: 22px; height: 2px; background: var(--primary-dark); border-radius: 2px; content: ""; transition: transform .2s, opacity .2s;
}
.nav-toggle-bar { top: 22px; }
.nav-toggle-bar::before { left: 0; top: -7px; }
.nav-toggle-bar::after { left: 0; top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1020px) {
  :root { --header-h: 72px; }
  .brand img { width: 128px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 30px rgba(20, 50, 80, .12); display: none;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; padding: .6rem 16px 1.2rem; gap: 0; }
  .main-nav a { padding: .8rem .6rem; font-size: 1.05rem; }
  .main-nav .nav-cta { margin: .6rem 0 0; }
  .main-nav .nav-cta .btn { width: 100%; }
}
@media (max-width: 640px) {
  .topbar-inner { justify-content: center; }
  .topbar-links { gap: 1rem; font-size: .84rem; }
}

/* ---------- Portada ---------- */
.hero { background: linear-gradient(180deg, var(--tint-blue) 0%, #fff 100%); padding: 3.5rem 0 2.5rem; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center; }
.hero-lead { font-size: 1.18rem; color: var(--muted); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.hero-media img {
  width: 100%; border-radius: 28px; box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3; object-fit: cover; object-position: 50% 30%;
}
.hero-media { position: relative; }
.hero-media::before {
  content: ""; position: absolute; inset: auto -18px -18px auto; width: 60%; height: 60%;
  background: var(--sage-soft); border-radius: 28px; z-index: -1;
}
.hero-ortho { padding-top: 1.5rem; }

.trust {
  list-style: none; margin: 3rem 0 0; padding: 1.2rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
}
.trust li { padding: .4rem 1rem; border-left: 3px solid var(--sage); }
.trust strong { display: block; color: var(--primary-dark); }
.trust span { font-size: .92rem; color: var(--muted); }

@media (max-width: 900px) {
  .hero { padding-top: 2rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-media { order: -1; }
  .hero-media::before { display: none; }
  .trust { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .trust { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
}

.breadcrumb { padding-top: 1rem; font-size: .9rem; color: var(--muted); }
.breadcrumb a { color: var(--muted); }

/* ---------- Secciones ---------- */
.section { padding: 5rem 0; }
.section-tight { padding: 3rem 0; }
.section-alt { background: var(--tint-blue); }
@media (max-width: 640px) { .section { padding: 3.5rem 0; } }
.h-small { font-size: 1.5rem; margin-bottom: 1.6rem; }

.approach-grid { display: grid; grid-template-columns: 380px 1fr; gap: 3.5rem; align-items: center; }
.approach-photo { margin: 0; }
.approach-photo img { border-radius: 50%; box-shadow: var(--shadow-lg); border: 8px solid #fff; outline: 2px solid var(--sage-soft); }
.quote {
  margin: 1.2rem 0 1.4rem; padding: 1.2rem 1.4rem; background: var(--primary-soft); border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-family: var(--font-head); font-size: 1.2rem; color: var(--primary-dark);
}
.quote cite { display: block; margin-top: .6rem; font-family: var(--font-body); font-style: normal; font-size: .95rem; font-weight: 700; color: var(--muted); }
@media (max-width: 900px) {
  .approach-grid { grid-template-columns: 1fr; gap: 2rem; }
  .approach-photo { max-width: 280px; margin: 0 auto; }
}

/* ---------- Tarjetas ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; align-items: start; }
.card {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--line); transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card-img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.card-body { padding: 1.3rem 1.4rem 1.4rem; }
.card-body h3 { font-size: 1.18rem; }
.card-body p { color: var(--muted); font-size: .98rem; }
.card-body > p:last-child { margin-bottom: 0; }
@media (max-width: 960px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .cards { grid-template-columns: 1fr; } }

details.more summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: .4em;
  color: var(--primary); font-weight: 700; font-size: .95rem; padding: .2rem 0;
}
details.more summary::-webkit-details-marker { display: none; }
details.more summary::after { content: "+"; font-size: 1.2em; line-height: 1; transition: transform .2s; }
details.more[open] summary::after { transform: rotate(45deg); }
details.more .more-close, details.more[open] .more-open { display: none; }
details.more[open] .more-close { display: inline; }
.more-body { padding-top: .6rem; }
.more-body p { color: var(--muted); font-size: .98rem; }

/* ---------- Banda libre de mercurio ---------- */
.band-mercury { background: linear-gradient(135deg, var(--sage-soft), var(--primary-soft)); }
.band-grid { display: grid; grid-template-columns: 220px 1fr; gap: 3rem; align-items: center; }
.band-badge { border-radius: 50%; box-shadow: var(--shadow); background: #fff; width: 220px; height: 220px; object-fit: contain; }
.band-grid p { color: #34444f; }
@media (max-width: 760px) {
  .band-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .band-badge { width: 160px; height: 160px; margin: 0 auto; }
}

/* ---------- Ortodoncia (inicio) ---------- */
.section-ortho { background: var(--primary-dark); color: #e6f0f7; }
.section-ortho h2, .section-ortho .eyebrow { color: #fff; }
.section-ortho .eyebrow { color: #a9d3b8; }
.section-ortho .lead { color: #cfe0ec; }
.ortho-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.6rem; margin-bottom: 2.4rem; }
.ortho-card { background: #fff; color: var(--ink); border-radius: var(--radius); overflow: hidden; display: grid; grid-template-columns: 42% 1fr; }
.ortho-card img { width: 100%; height: 100%; object-fit: cover; }
.ortho-card-body { padding: 1.5rem; }
.ortho-card-body p { color: var(--muted); font-size: .98rem; margin: 0; }
.ortho-card h3 small { display: block; font-family: var(--font-body); font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--sage); margin-top: .3rem; }
.section-ortho .btn-primary { background: #fff; color: var(--primary-dark); box-shadow: none; }
.section-ortho .btn-primary:hover { background: var(--sage-soft); }
@media (max-width: 900px) {
  .ortho-cards { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .ortho-card { grid-template-columns: 1fr; }
  .ortho-card img { aspect-ratio: 16 / 10; }
}

/* ---------- Atención ---------- */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }
.feature img { border-radius: var(--radius); aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 1rem; box-shadow: var(--shadow); }
.feature p { color: var(--muted); font-size: .97rem; }
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }

/* ---------- Equipo ---------- */
.team { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 2rem; justify-content: center; }
.member { background: #fff; border-radius: var(--radius); padding: 2rem; text-align: center; box-shadow: var(--shadow); }
.member img { width: 170px; height: 170px; border-radius: 50%; object-fit: cover; margin: 0 auto 1.2rem; border: 6px solid var(--primary-soft); }
.member .role { color: var(--sage); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .82rem; }
.member p:last-child { color: var(--muted); font-size: .97rem; margin: 0; }
@media (max-width: 700px) { .team { grid-template-columns: 1fr; } }

/* ---------- Logos ---------- */
.logos { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 2rem 3rem; }
.logos li { text-align: center; max-width: 190px; }
.logos img { max-height: 90px; width: auto; margin: 0 auto; filter: grayscale(.2); }
.logos a { text-decoration: none; color: var(--muted); }
.logos span { display: block; font-size: .78rem; margin-top: .4rem; line-height: 1.3; }

/* ---------- Página de ortodoncia ---------- */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.pillar { background: var(--sage-soft); border-radius: var(--radius); padding: 1.6rem; border-top: 4px solid var(--sage); }
.pillar p { color: #3e4f5a; font-size: .97rem; margin: 0; }
@media (max-width: 960px) { .pillars { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pillars { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: center; }
.split + .split { margin-top: 4rem; }
.split img { border-radius: 24px; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; }
.split-reverse img { order: 2; }
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; gap: 1.6rem; }
  .split-reverse img { order: 0; }
}
.checks { list-style: none; padding: 0; margin: 1rem 0 0; }
.checks li { position: relative; padding-left: 2rem; margin-bottom: .55rem; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 1.2rem; height: 1.2rem; border-radius: 50%;
  background: var(--sage) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='none' stroke='white' stroke-width='3' d='M5 10.5l3.2 3L15 6.5'/%3E%3C/svg%3E") center / 75% no-repeat;
}

.signs { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.signs li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1.1rem 1.2rem 1.1rem 3rem;
  position: relative; font-weight: 600; box-shadow: var(--shadow);
}
.signs li::before {
  content: "!"; position: absolute; left: 1rem; top: 1.15rem; width: 1.4rem; height: 1.4rem; border-radius: 50%;
  background: var(--primary-soft); color: var(--primary); font-weight: 800; font-size: .85rem; line-height: 1.4rem; text-align: center;
}
@media (max-width: 960px) { .signs { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .signs { grid-template-columns: 1fr; } }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; counter-reset: step; }
.steps li { background: #fff; border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow); counter-increment: step; }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 50%;
  background: var(--primary); color: #fff; font-weight: 800; margin-bottom: 1rem;
}
.steps p { color: var(--muted); margin: 0; font-size: .97rem; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 1.2rem 2.5rem 1.2rem 0; font-weight: 700; font-size: 1.08rem; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: .3rem; top: 50%; transform: translateY(-50%); font-size: 1.6rem; color: var(--primary); transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--muted); padding-bottom: 1.2rem; margin: 0; }

/* ---------- Contacto ---------- */
.section-contact { background: var(--tint-green); padding-bottom: 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 2.4rem; margin-bottom: 4rem; align-items: start; }
.info-block { background: #fff; border-radius: var(--radius); padding: 1.5rem 1.6rem; margin-bottom: 1.2rem; box-shadow: var(--shadow); }
.info-block h3 { font-size: 1.1rem; color: var(--primary-dark); }
.info-block p:last-child { margin-bottom: 0; }
.info-links { display: flex; gap: 1rem; font-weight: 700; }
.info-list, .hours { list-style: none; padding: 0; margin: 0; }
.info-list li, .hours li { display: flex; justify-content: space-between; gap: 1rem; padding: .45rem 0; border-bottom: 1px dashed var(--line); flex-wrap: wrap; }
.info-list li:last-child, .hours li:last-child { border-bottom: 0; }
.info-list span, .hours span { color: var(--muted); }
.info-list a { font-weight: 700; word-break: break-all; }

.contact-form-wrap { background: #fff; border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-lg); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { margin: 0 0 1rem; border: 0; padding: 0; min-width: 0; }
.field label, .field legend { display: block; font-weight: 700; font-size: .93rem; margin-bottom: .35rem; padding: 0; }
.field input[type="text"], .field input[type="tel"], .field input[type="email"], .field select, .field textarea {
  width: 100%; padding: .75rem .9rem; font: inherit; font-size: 1rem; color: var(--ink);
  background: #fbfcfd; border: 1.5px solid var(--line); border-radius: var(--radius-sm); transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); background: #fff; }
.field [aria-invalid="true"] { border-color: var(--danger); }
.field-error { display: block; color: var(--danger); font-size: .87rem; margin-top: .3rem; }
.field-hint { font-size: .9rem; color: var(--muted); margin: .2rem 0 .6rem; }
.field-hint.is-error { color: var(--danger); font-weight: 600; }
#contact-hint + .field-error { margin: -.4rem 0 .6rem; }
.field-age.is-hidden { display: none; }
.form-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: .6rem 0 1rem; }
.cf-turnstile { margin-bottom: 1rem; }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.alert { padding: 1rem 1.2rem; border-radius: var(--radius-sm); font-weight: 600; margin-bottom: 1.2rem; }
.alert-ok { background: #e7f6ec; color: var(--ok); border: 1px solid #b7e2c5; }
.alert-error { background: #fdecea; color: var(--danger); border: 1px solid #f5c2bd; }
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { order: -1; }
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form-wrap { padding: 1.4rem; }
  .form-actions .btn { width: 100%; }
}

.map-wrap iframe { display: block; width: 100%; height: 380px; border: 0; filter: saturate(.85); }

/* ---------- Pie ---------- */
.site-footer { background: #10283a; color: #c4d3de; font-size: .95rem; padding: 3.5rem 0 0; }
.site-footer h3 { color: #fff; font-family: var(--font-body); font-size: .9rem; letter-spacing: .1em; text-transform: uppercase; }
.site-footer a { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .4rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.3fr 1.3fr; gap: 2rem; }
.footer-logo { background: #fff; border-radius: 12px; padding: 8px 10px; width: 160px; margin-bottom: 1rem; }
.hours-footer li { display: block; border: 0; padding: 0 0 .4rem; }
.hours-footer span { color: #c4d3de; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem;
  padding-top: 1.4rem; padding-bottom: 6rem; border-top: 1px solid rgba(255, 255, 255, .12); font-size: .88rem;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- WhatsApp flotante ---------- */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 90; display: flex; align-items: center; gap: .6rem;
  background: var(--wa); color: #fff; text-decoration: none; border-radius: 999px; padding: 12px;
  box-shadow: 0 10px 28px rgba(37, 211, 102, .45); transition: transform .2s, box-shadow .2s, background .2s;
  animation: wa-pop .5s ease-out .8s both;
}
.wa-float:hover { color: #fff; background: var(--wa-dark); transform: translateY(-2px) scale(1.03); }
.wa-float svg { flex: none; }
.wa-float-label { font-weight: 800; font-size: .95rem; padding-right: .5rem; white-space: nowrap; }
.wa-float::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; border: 2px solid var(--wa);
  animation: wa-pulse 2.4s ease-out 2s infinite; pointer-events: none;
}
@keyframes wa-pop { from { opacity: 0; transform: translateY(20px) scale(.8); } to { opacity: 1; transform: none; } }
@keyframes wa-pulse { 0% { opacity: .8; transform: scale(1); } 70%, 100% { opacity: 0; transform: scale(1.35); } }
@media (max-width: 720px) {
  .wa-float { right: 14px; bottom: 14px; padding: 14px; }
  .wa-float-label { display: none; }
}
@media (prefers-reduced-motion: reduce) { .wa-float, .wa-float::before { animation: none; } }