/* =========================================================
   VONIKO ARGENTINA — Hoja de estilos principal
   Mobile-first. Sin frameworks externos.
   ========================================================= */

:root {
  /* Paleta extraída directamente del CSS oficial de vonikobatteries.com */
  --navy-900: #060d15;
  --navy-800: #182432;
  --navy-700: #243242;
  --navy-600: #354454;
  --accent: #1fa3ff;
  --accent-dark: #118adf;
  --accent-2: #4a8cee;
  --bg: #f7f8fa;
  --bg-alt: #f1f1f1;
  --white: #ffffff;
  --text: #1f1f1f;
  --text-muted: #666666;
  --border: #e1e3e6;
  --success: #1b9c56;
  --success-bg: #e6f7ee;
  --soon: #8791a1;
  --soon-bg: #eef0f4;
  --danger: #d43b3b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(6, 13, 21, 0.06);
  --shadow-md: 0 12px 32px rgba(6, 13, 21, 0.1);
  --shadow-lg: 0 24px 60px rgba(6, 13, 21, 0.16);
  --container: 1180px;
  --ff-heading: "Quicksand", "Segoe UI", Arial, sans-serif;
  --ff-body: "Inter", "Segoe UI", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--ff-heading);
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--navy-900);
}

p {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-900);
  color: var(--white);
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: var(--shadow-md);
}
.btn-light {
  background: var(--white);
  color: var(--navy-900);
}
.btn-light:hover {
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}
.btn-outline-dark {
  background: transparent;
  border-color: var(--navy-700);
  color: var(--navy-800);
}
.btn-outline-dark:hover {
  background: var(--navy-800);
  color: var(--white);
}
.btn-whatsapp {
  background: #22c35e;
  color: var(--white);
}
.btn-whatsapp:hover {
  background: #1aa84e;
}
.btn-block {
  width: 100%;
}
.btn-sm {
  padding: 9px 18px;
  font-size: 0.85rem;
}

/* =========== HEADER =========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 249, 252, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-link svg {
  height: 34px;
  width: auto;
}
.main-nav {
  display: none;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-800);
  position: relative;
  padding: 6px 0;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--accent-dark);
}
.header-cta {
  display: none;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--white);
  cursor: pointer;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--white);
}
.mobile-menu.is-open {
  display: block;
}
.mobile-menu ul {
  padding: 10px 20px 20px;
}
.mobile-menu li {
  border-bottom: 1px solid var(--border);
}
.mobile-menu a {
  display: block;
  padding: 14px 4px;
  font-family: var(--ff-heading);
  font-weight: 600;
  color: var(--navy-800);
}
.mobile-menu .header-cta {
  display: flex;
  flex-direction: column;
  padding: 16px 20px 4px;
  gap: 10px;
}

@media (min-width: 900px) {
  .main-nav {
    display: block;
  }
  .header-cta {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
  .mobile-menu {
    display: none !important;
  }
}

/* =========== HERO (banner ancho con foto de fondo) =========== */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--navy-900);
  color: var(--white);
  display: flex;
  align-items: center;
  aspect-ratio: 8 / 3;
  min-height: 420px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(6, 13, 21, 0.92) 0%, rgba(6, 13, 21, 0.74) 38%, rgba(6, 13, 21, 0.3) 65%, rgba(6, 13, 21, 0.05) 100%);
}
.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin-left: 0;
  padding-top: 64px;
  padding-bottom: 64px;
  padding-left: clamp(20px, 5vw, 64px);
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(31, 163, 255, 0.14);
  border: 1px solid rgba(31, 163, 255, 0.4);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(1.7rem, 4vw, 2.75rem);
  margin-bottom: 0.4em;
}
.hero p.lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 50ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.88);
}
.hero-trust-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent);
}

@media (max-width: 899px) {
  .hero {
    aspect-ratio: auto;
    min-height: 0;
    background: radial-gradient(120% 140% at 15% 0%, var(--navy-700) 0%, var(--navy-800) 45%, var(--navy-900) 100%);
  }
  .hero-bg {
    display: none;
  }
  .hero::before {
    display: none;
  }
  .hero-copy {
    max-width: 100%;
    padding-top: 40px;
    padding-bottom: 40px;
  }
  .hero-trust {
    gap: 16px 22px;
  }
}

/* Page header (non-home hero, smaller) */
.page-header {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  color: var(--white);
  padding: 52px 0 64px;
}
.page-header h1 {
  color: var(--white);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 0.3em;
}
.page-header p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 62ch;
  font-size: 1.05rem;
}
.breadcrumbs {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 18px;
}
.breadcrumbs a {
  color: rgba(255, 255, 255, 0.85);
}
.breadcrumbs a:hover {
  color: var(--accent);
}

/* =========== SECTIONS =========== */
.section {
  padding: 72px 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-navy {
  background: var(--navy-900);
  color: var(--white);
}
.section-navy h2 {
  color: var(--white);
}
.section-head {
  max-width: 68ch;
  margin-bottom: 40px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.kicker {
  display: inline-block;
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 10px;
}
.section-navy .kicker {
  color: var(--accent);
}
.section-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
}
.section-head p {
  color: var(--text-muted);
  font-size: 1.02rem;
}
.section-navy .section-head p {
  color: rgba(255, 255, 255, 0.75);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 {
  grid-template-columns: 1fr;
}
.grid-3 {
  grid-template-columns: 1fr;
}
.grid-4 {
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Cards */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.card h3 {
  font-size: 1.15rem;
}
.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-dark);
}
.card-icon svg {
  width: 26px;
  height: 26px;
}

/* Product line cards */
.product-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.product-card.is-soon {
  opacity: 0.72;
}
.product-card.is-soon:hover {
  transform: none;
  box-shadow: var(--shadow-sm);
}
.product-card-media {
  background: var(--bg-alt);
  height: 190px;
  overflow: hidden;
}
.product-card.is-soon .product-card-media {
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}
.product-card.is-soon .product-card-media svg {
  height: 100px;
  width: auto;
}
.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product-card.is-soon .product-card-media img {
  width: auto;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
}
.product-card-body {
  padding: 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}
.product-card-body p {
  color: var(--text-muted);
  flex: 1;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
}
.badge-active {
  background: var(--success-bg);
  color: var(--success);
}
.badge-soon {
  background: var(--soon-bg);
  color: var(--soon);
}
.badge-audio {
  background: rgba(31, 163, 255, 0.12);
  color: var(--accent-dark);
}
.badge-audio svg {
  width: 13px;
  height: 13px;
}
.badge-static {
  position: static;
  display: inline-flex;
  margin-bottom: 10px;
}

/* Spec tables */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 0.92rem;
}
.spec-table caption {
  text-align: left;
  font-family: var(--ff-heading);
  font-weight: 700;
  padding: 16px 20px;
  background: var(--navy-800);
  color: var(--white);
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  font-family: var(--ff-heading);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg-alt);
}
.spec-table tr:last-child td {
  border-bottom: none;
}
.spec-table .tag-stock {
  color: var(--success);
  font-weight: 600;
}
.spec-table .tag-consult {
  color: var(--soon);
  font-weight: 600;
}
.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

/* Two column content + media */
.split {
  display: grid;
  gap: 40px;
  align-items: center;
}
@media (min-width: 900px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
  .split.reverse .split-media {
    order: 2;
  }
}
.split-media {
  background: linear-gradient(160deg, var(--navy-700), var(--navy-900));
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.split-media.photo {
  padding: 0;
  background: var(--bg-alt);
  box-shadow: var(--shadow-md);
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}
.split-media.photo img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}
.split-media.photo img.pos-right {
  object-position: right;
}
.split-media img,
.split-media svg {
  width: 100%;
  max-width: 320px;
}

/* Feature list */
.feature-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.feature-list li:last-child {
  border-bottom: none;
}
.feature-list svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--accent-dark);
  margin-top: 2px;
}
.feature-list strong {
  font-family: var(--ff-heading);
  display: block;
  margin-bottom: 2px;
}
.feature-list span {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Callout / CTA banner */
.callout {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px;
  display: grid;
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.callout h2,
.callout h3 {
  color: var(--white);
}
.callout p {
  color: rgba(255, 255, 255, 0.9);
}
@media (min-width: 800px) {
  .callout {
    grid-template-columns: 1fr auto;
    padding: 48px 56px;
  }
}

/* Notice / warning box */
.notice {
  border-radius: var(--radius-md);
  padding: 20px 24px;
  border: 1px solid var(--border);
  background: var(--white);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.notice svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--danger);
  margin-top: 2px;
}
.notice.notice-danger {
  border-color: rgba(212, 59, 59, 0.35);
  background: #fdecec;
}
.notice.notice-info {
  border-color: rgba(31, 182, 255, 0.35);
  background: #eaf8ff;
}
.notice.notice-info svg {
  color: var(--accent-2);
}
.notice h4 {
  margin-bottom: 4px;
  font-size: 1rem;
}
.notice p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* Contact tiles */
.contact-tile {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.contact-tile .card-icon {
  margin: 0 auto 16px;
}
.contact-tile h3 {
  margin-bottom: 6px;
}
.contact-tile p {
  color: var(--text-muted);
  font-size: 0.92rem;
}
.todo-flag {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #a15c00;
  background: #fff3e0;
  border: 1px dashed #e2a03f;
  padding: 4px 10px;
  border-radius: 6px;
}

/* Stats */
.stats {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
}
.stat-item {
  text-align: center;
}
.stat-item strong {
  display: block;
  font-family: var(--ff-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--white);
}
.stat-item span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Steps */
.steps {
  counter-reset: step;
  display: grid;
  gap: 20px;
}
@media (min-width: 700px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}
.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  font-family: var(--ff-heading);
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}

/* Footer */
.site-footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  gap: 36px;
  margin-bottom: 40px;
}
@media (min-width: 800px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}
.footer-brand svg {
  height: 32px;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 0.9rem;
  max-width: 34ch;
}
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.72);
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 150;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #22c35e;
  color: var(--white);
  padding: 14px 18px;
  border-radius: 999px;
  box-shadow: 0 12px 30px rgba(34, 195, 94, 0.45);
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform 0.15s ease;
}
.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.03);
}
.whatsapp-float svg {
  width: 22px;
  height: 22px;
}
.whatsapp-float .wa-text {
  display: none;
}
@media (min-width: 640px) {
  .whatsapp-float .wa-text {
    display: inline;
  }
}

/* Utilities */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* 404 page */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.error-page .error-code {
  font-family: var(--ff-heading);
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 8rem);
  color: var(--navy-700);
  line-height: 1;
  margin-bottom: 0.1em;
}