/* ==========================================================================
   VCTSV — Corporate Holding Site
   Design system: dark, minimal, corporate. Black/graphite base, cyan accent,
   glassmorphism surfaces with blur.
   ========================================================================== */

:root {
  /* Color tokens */
  --color-bg: #06070a;
  --color-bg-elevated: #0b0d12;
  --color-surface: rgba(255, 255, 255, 0.035);
  --color-surface-strong: rgba(255, 255, 255, 0.06);
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  --color-text: #f5f7fa;
  --color-text-muted: #9aa4b2;
  --color-text-faint: #626c7a;

  --color-accent: #38bdf8;
  --color-accent-strong: #7dd3fc;
  --color-accent-dim: rgba(56, 189, 248, 0.12);
  --color-accent-border: rgba(56, 189, 248, 0.35);

  --color-focus: #7dd3fc;

  /* Typography */
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;

  /* Spacing rhythm (4/8 base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 0 1px rgba(56, 189, 248, 0.15), 0 20px 60px rgba(56, 189, 248, 0.08);

  --container-max: 1180px;
  --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 240ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

body::before {
  /* Ambient background glow */
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(700px 420px at 12% -6%, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(640px 480px at 92% 8%, rgba(125, 211, 252, 0.09), transparent 60%),
    radial-gradient(900px 600px at 50% 110%, rgba(56, 189, 248, 0.07), transparent 60%),
    var(--color-bg);
}

main {
  flex: 1 0 auto;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.1rem, 4.4vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 var(--space-4); color: var(--color-text-muted); }

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

button {
  font-family: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-7); }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px 2px rgba(56, 189, 248, 0.7);
}

.section {
  padding-block: var(--space-9);
  border-top: 1px solid var(--color-border);
}

.section--tight { padding-block: var(--space-8); }

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-7);
}

.section-head p {
  font-size: 1.05rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  background: var(--color-accent);
  color: #06131a;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 999;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ------------------------------- Buttons --------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-6);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-accent);
  color: #06131a;
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.28);
}

.btn--primary:hover {
  background: var(--color-accent-strong);
  box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
}

.btn--ghost {
  background: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-text);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  background: var(--color-surface-strong);
  border-color: var(--color-accent-border);
}

.btn--sm {
  min-height: 40px;
  padding: 0 var(--space-5);
  font-size: 0.85rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* --------------------------------- Header -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 7, 10, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}

.brand img {
  height: 30px;
  width: auto;
}

.main-nav {
  display: none;
}

@media (min-width: 960px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
  }
}

.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-text);
}

.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  padding: var(--space-2) 0;
}

.nav-dropdown-trigger:hover { color: var(--color-text); }

.nav-dropdown-trigger svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-dropdown[data-open="true"] .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 300px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-3);
  display: none;
  flex-direction: column;
  gap: 2px;
}

.nav-dropdown[data-open="true"] .nav-dropdown-panel {
  display: flex;
}

.nav-dropdown-panel a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.nav-dropdown-panel a:hover {
  background: var(--color-surface-strong);
}

.nav-dropdown-panel .item-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
}

.nav-dropdown-panel .item-desc {
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  padding: 3px;
  gap: 2px;
}

.lang-switch button {
  border: none;
  background: none;
  color: var(--color-text-faint);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
  min-height: 32px;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--color-accent);
  color: #06131a;
}

.lang-switch button:not([aria-pressed="true"]):hover {
  color: var(--color-text);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

@media (min-width: 960px) {
  .nav-toggle { display: none; }
}

.nav-toggle svg { width: 20px; height: 20px; }

/* Mobile nav panel */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) 0 var(--space-6);
  border-top: 1px solid var(--color-border);
}

.mobile-nav[data-open="true"] {
  display: flex;
}

@media (min-width: 960px) {
  .mobile-nav { display: none !important; }
}

.mobile-nav a,
.mobile-nav .mobile-subhead {
  padding: var(--space-3) var(--space-1);
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.mobile-nav a:hover { background: var(--color-surface); }

.mobile-nav .mobile-subhead {
  color: var(--color-text-faint);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-top: var(--space-4);
}

/* --------------------------------- Hero ---------------------------------- */
.hero {
  padding-block: var(--space-9) var(--space-8);
  text-align: center;
}

.hero-inner {
  max-width: 760px;
  margin-inline: auto;
}

.hero p.lede {
  margin-inline: auto;
  font-size: 1.2rem;
}

.hero .btn-row {
  justify-content: center;
  margin-top: var(--space-6);
}

.hero-stats {
  margin-top: var(--space-9);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-5);
  max-width: 860px;
  margin-inline: auto;
}

.stat {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-accent-strong);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

/* ------------------------------ Product cards ----------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-surface-strong), var(--color-surface));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.product-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.35), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-glow);
}

.product-card .product-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent-strong);
}

.product-card .product-icon svg {
  width: 26px;
  height: 26px;
}

.product-card h3 {
  margin-bottom: var(--space-2);
}

.product-card .product-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}

.product-card p {
  flex: 1;
  font-size: 0.95rem;
  margin-bottom: var(--space-5);
}

.product-card .product-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent-strong);
}

.product-card .product-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.product-card:hover .product-link svg {
  transform: translate(3px, -3px);
}

.product-card-cover {
  position: absolute;
  inset: 0;
}

/* ----------------------------- Value / feature grid ------------------------ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}

.value-card {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.value-card h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-2);
}

.value-card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

.value-card .value-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-dim);
  color: var(--color-accent-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.value-card .value-icon svg { width: 20px; height: 20px; }

/* ---------------------------------- CTA band ------------------------------- */
.cta-band {
  border: 1px solid var(--color-border);
  background: radial-gradient(600px 260px at 20% 0%, rgba(56, 189, 248, 0.14), transparent 65%), var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
}

.cta-band h2 { margin-bottom: var(--space-3); }
.cta-band p { margin-inline: auto; max-width: 560px; }
.cta-band .btn-row { justify-content: center; margin-top: var(--space-5); }

/* --------------------------------- Content pages --------------------------- */
.page-hero {
  padding-block: var(--space-8) var(--space-6);
}

.page-hero .eyebrow { margin-bottom: var(--space-3); }

.prose {
  max-width: 760px;
}

.prose h2 {
  margin-top: var(--space-8);
}

.prose h2:first-child { margin-top: 0; }

.prose ul {
  list-style: disc;
  padding-left: 1.3em;
  margin-bottom: var(--space-4);
}

.prose li { margin-bottom: var(--space-2); color: var(--color-text-muted); }

.prose a {
  color: var(--color-accent-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.updated-note {
  font-size: 0.85rem;
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
}

/* --------------------------------- Contact form ---------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}

@media (min-width: 900px) {
  .contact-layout { grid-template-columns: 1.05fr 0.95fr; }
}

.contact-card {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.field {
  margin-bottom: var(--space-5);
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.field .hint {
  font-size: 0.78rem;
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-accent-border);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

.form-status {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  display: none;
}

.form-status[data-state="success"] {
  display: block;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent-strong);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-info-item .value-icon {
  flex-shrink: 0;
  margin-bottom: 0;
}

.contact-info-item h3 { margin-bottom: 2px; font-size: 1rem; }
.contact-info-item p { margin-bottom: 0; font-size: 0.9rem; }

/* --------------------------------- Footer ---------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  padding-block: var(--space-8) var(--space-6);
  margin-top: var(--space-9);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: var(--space-7);
}

@media (max-width: 860px) {
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .footer-top {
    grid-template-columns: 1fr;
  }
}

.footer-brand .brand { margin-bottom: var(--space-4); }

.footer-brand p {
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--color-text); }

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-bottom-left {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-5);
  font-size: 0.82rem;
  color: var(--color-text-faint);
}

/* --------------------------------- Utilities -------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[data-i18n-loading] {
  opacity: 0;
}

/* Long-form bilingual content blocks (used on Terms / Privacy pages).
   Visibility is driven by the <html lang="..."> attribute that main.js sets. */
[data-lang-content] {
  display: none;
}

html[lang="en"] [data-lang-content="en"],
html[lang="es"] [data-lang-content="es"] {
  display: block;
}