/* Dkar Salud — Stylesheet
   Paleta: Azul médico clásico
   ============================ */

:root {
  --c-primary: #0A4D8C;
  --c-primary-dark: #073864;
  --c-primary-light: #1E88E5;
  --c-accent: #4FC3F7;
  --c-bg: #FFFFFF;
  --c-bg-soft: #F5F9FC;
  --c-bg-mute: #EAF1F8;
  --c-text: #142133;
  --c-text-soft: #4A5A6E;
  --c-border: #D9E3EF;
  --c-success: #2E7D32;
  --c-error: #C62828;
  --c-wa: #25D366;
  --shadow-sm: 0 1px 2px rgba(10, 77, 140, 0.06);
  --shadow-md: 0 6px 18px rgba(10, 77, 140, 0.08);
  --shadow-lg: 0 20px 48px rgba(10, 77, 140, 0.14);
  --radius: 12px;
  --radius-lg: 18px;
  --container: 1180px;
  --transition: 200ms ease;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--c-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 8px 0;
  font-weight: 600;
  font-size: 0.9rem;
}
.skip-link:focus {
  left: 0;
  color: #fff;
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--c-primary-light);
  outline-offset: 2px;
}

a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-primary-dark); }

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

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--c-text); letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 0.95rem; }

p { color: var(--c-text-soft); }

.kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-primary-light);
  margin-bottom: 12px;
}

.lede { font-size: 1.05rem; color: var(--c-text-soft); }

/* ====== Botones ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(10, 77, 140, 0.25);
}
.btn-primary:hover {
  background: var(--c-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(10, 77, 140, 0.32);
}
.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-border);
}
.btn-ghost:hover {
  background: var(--c-bg-soft);
  border-color: var(--c-primary-light);
}
.btn-light {
  background: #fff;
  color: var(--c-primary);
}
.btn-light:hover {
  background: var(--c-bg-soft);
  color: var(--c-primary-dark);
  transform: translateY(-1px);
}
.btn-sm { padding: 10px 18px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ====== Header ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-text);
}
.logo-icon { width: 38px; height: 38px; flex-shrink: 0; }
.logo-text {
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  line-height: 1;
}
.logo-text strong { color: var(--c-primary); font-weight: 800; }
.logo-text span { color: var(--c-text-soft); font-weight: 500; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  color: var(--c-text);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav a:hover { color: var(--c-primary); }
.nav .btn { margin-left: 12px; }

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ====== Hero ====== */
.hero {
  position: relative;
  padding: 80px 0 100px;
  background: linear-gradient(180deg, #F5F9FC 0%, #FFFFFF 100%);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(79, 195, 247, 0.18) 0%, transparent 70%);
  z-index: 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-copy h1 { margin-bottom: 20px; }
.hero-copy .lede { margin-bottom: 32px; max-width: 560px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--c-border);
}
.hs-item { display: flex; flex-direction: column; gap: 2px; }
.hs-item strong {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: -0.02em;
}
.hs-item span {
  font-size: 0.82rem;
  color: var(--c-text-soft);
}

/* Hero visual card */
.hero-visual { position: relative; }
.hero-card {
  position: relative;
  z-index: 2;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.hero-card-row { display: flex; align-items: center; gap: 10px; }
.hero-card-row .bar {
  height: 10px; border-radius: 6px;
  background: var(--c-bg-mute);
  flex: 1;
}
.hero-card-row .bar.short { flex: 0.4; background: var(--c-accent); opacity: 0.6; }
.hero-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.hc-tile {
  aspect-ratio: 1.6;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  border-radius: 10px;
  color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 14px;
  font-weight: 600;
  font-size: 0.9rem;
  position: relative;
  overflow: hidden;
}
.hc-tile:nth-child(2) { background: linear-gradient(135deg, #1E88E5 0%, #4FC3F7 100%); }
.hc-tile:nth-child(3) { background: linear-gradient(135deg, #073864 0%, #0A4D8C 100%); }
.hc-tile:nth-child(4) { background: linear-gradient(135deg, #4FC3F7 0%, #1E88E5 100%); }
.hc-tile::after {
  content: '';
  position: absolute;
  top: -20%; right: -20%;
  width: 80px; height: 80px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.hero-card-foot {
  background: var(--c-bg-soft);
  border-radius: 10px;
  padding: 12px;
}
.pulse svg { width: 100%; height: 30px; }

.hero-blob {
  position: absolute;
  bottom: -60px; left: -40px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(10, 77, 140, 0.12) 0%, transparent 70%);
  z-index: 0;
}

/* ====== Brand strip ====== */
.brand-strip {
  background: var(--c-bg-soft);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  padding: 28px 0;
  text-align: center;
}
.brand-strip-label {
  font-size: 0.85rem;
  color: var(--c-text-soft);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}
.brand-strip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 20px;
  font-size: 0.95rem;
  color: var(--c-text);
  font-weight: 500;
}
.brand-strip-row span:nth-child(even) { color: var(--c-border); }

/* ====== Section heads ====== */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head h2 { margin-bottom: 14px; }

/* ====== Products ====== */
.products {
  padding: 90px 0;
  background: #fff;
}
.prod-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.prod-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.prod-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms ease;
}
.prod-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.prod-card:hover::before { transform: scaleX(1); }
.prod-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--c-bg-soft);
  border-radius: 12px;
  margin-bottom: 20px;
  overflow: hidden;
  position: relative;
}
.prod-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 400ms ease;
}
.prod-card:hover .prod-img img { transform: scale(1.04); }
.prod-card h3 { margin-bottom: 10px; font-size: 1.3rem; }
.prod-card > p { margin-bottom: 16px; font-size: 0.95rem; }
.prod-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
  margin-bottom: 22px;
}
.prod-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  color: var(--c-text-soft);
}
.prod-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-primary-light);
}
.prod-cta {
  margin-top: auto;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--c-primary);
}
.prod-cta:hover { color: var(--c-primary-dark); }

.products-cta {
  margin-top: 56px;
  text-align: center;
  background: var(--c-bg-soft);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
}
.products-cta p { margin-bottom: 20px; font-size: 1rem; color: var(--c-text); }

/* ====== Benefits ====== */
.benefits {
  padding: 90px 0;
  background: var(--c-bg-soft);
}
.ben-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ben-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
}
.ben-card:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.ben-icon {
  width: 52px; height: 52px;
  background: var(--c-bg-mute);
  color: var(--c-primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.ben-icon svg { width: 26px; height: 26px; }
.ben-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.ben-card p { font-size: 0.93rem; }

/* ====== Applications ====== */
.applications {
  padding: 90px 0;
  background: #fff;
}
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.app-card {
  background: var(--c-bg-soft);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.app-card:hover {
  background: #fff;
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-md);
}
.app-num {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-primary-light);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.app-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.app-card p { font-size: 0.92rem; }

/* ====== Testimonials ====== */
.testimonials {
  padding: 90px 0;
  background: var(--c-bg-soft);
}
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testi-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition);
}
.testi-card:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.testi-quote-mark {
  width: 36px; height: 36px;
  color: var(--c-accent);
  margin-bottom: 16px;
  opacity: 0.85;
}
.testi-quote {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--c-text);
  margin-bottom: 24px;
  flex-grow: 1;
}
.testi-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border);
}
.testi-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.testi-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.testi-meta strong {
  font-size: 0.95rem;
  color: var(--c-text);
}
.testi-meta span {
  font-size: 0.82rem;
  color: var(--c-text-soft);
}

/* ====== About band ====== */
.about-band { padding: 90px 0; background: #fff; }
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-copy p { margin-bottom: 16px; }
.about-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-top: 28px;
}
.pillar {
  padding-top: 16px;
  border-top: 2px solid var(--c-primary-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pillar strong {
  font-size: 0.95rem;
  color: var(--c-text);
}
.pillar span {
  font-size: 0.85rem;
  color: var(--c-text-soft);
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  background: #fff;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-md);
}
.as-item {
  text-align: center;
  padding: 20px 12px;
  background: var(--c-bg-soft);
  border-radius: 12px;
}
.as-item strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--c-primary);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 6px;
}
.as-item span {
  font-size: 0.85rem;
  color: var(--c-text-soft);
}

/* ====== CTA band ====== */
.cta-band {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  padding: 60px 0;
  color: #fff;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255, 255, 255, 0.85); max-width: 560px; }

/* ====== Contact ====== */
.contact {
  padding: 90px 0;
  background: var(--c-bg-soft);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-form {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.field { display: flex; flex-direction: column; margin-bottom: 18px; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-text);
  margin-bottom: 6px;
}
.field input,
.field select,
.field textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1.5px solid var(--c-border);
  border-radius: 10px;
  background: #fff;
  color: var(--c-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-primary-light);
  box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.15);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { margin-top: 14px; font-size: 0.88rem; text-align: center; min-height: 1.2em; }
.form-note.ok { color: var(--c-success); }
.form-note.err { color: var(--c-error); }

.contact-info {
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  position: sticky;
  top: 100px;
}
.contact-info h3 { color: #fff; margin-bottom: 20px; }
.contact-list {
  list-style: none;
  display: grid;
  gap: 18px;
}
.contact-list li { display: flex; flex-direction: column; gap: 2px; }
.ci-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
}
.contact-list a,
.contact-list span:not(.ci-label) {
  color: #fff;
  font-weight: 500;
  font-size: 1rem;
}
.contact-list a:hover { color: var(--c-accent); }

/* ====== Footer ====== */
.site-footer {
  background: var(--c-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 24px;
}
.site-footer .logo-text strong { color: #fff; }
.site-footer .logo-text span { color: rgba(255, 255, 255, 0.6); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  margin-top: 16px;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.92rem;
}
.site-footer .afip-banner {
  display: inline-block !important;
  width: 70px !important;
  max-width: 70px !important;
  background: #fff;
  padding: 4px;
  border-radius: 4px;
  line-height: 0;
  transition: opacity var(--transition);
}
.site-footer .afip-banner:hover { opacity: 0.85; }
.site-footer .afip-banner img {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  display: block;
}
.footer-col h4 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.93rem;
}
.footer-col a:hover { color: #fff; }
.footer-col .plain { color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  font-size: 0.85rem;
}

/* ====== WhatsApp floating ====== */
.wa-float {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 58px; height: 58px;
  background: var(--c-wa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 90;
  transition: transform var(--transition), box-shadow var(--transition);
}
.wa-float:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.5);
}
.wa-float svg { width: 32px; height: 32px; }

/* ====== Responsive ====== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 480px; margin: 0 auto; }
  .prod-grid { grid-template-columns: 1fr; }
  .ben-grid { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: 1fr; gap: 20px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-pillars { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .nav a:not(.btn) { display: none; }
  .nav .btn { display: none; }
  .nav-toggle { display: flex; }
  .nav.open {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
    gap: 16px;
    align-items: stretch;
  }
  .nav.open a { display: block; padding: 8px 0; }
  .nav.open .btn { display: inline-flex; }
  .hero { padding: 60px 0 80px; }
  .hero-stats { gap: 20px; }
  .ben-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; padding: 18px; gap: 10px; }
  .prod-list { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .cta-inner { flex-direction: column; align-items: flex-start; text-align: left; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .wa-float { width: 52px; height: 52px; bottom: 18px; right: 18px; }
  .wa-float svg { width: 28px; height: 28px; }
}