:root {
  --landing-primary: #0f766e;
  --landing-primary-soft: rgba(15, 118, 110, 0.1);
  --landing-secondary: #134e4a;
  --landing-border: rgba(15, 23, 42, 0.1);
  --landing-muted: #64748b;
  --landing-text: #0f172a;
  --landing-surface: #ffffff;
  --landing-surface-alt: #f8fafc;
  --landing-page: #f1f5f9;
  --landing-radius: 1rem;
  --landing-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
  --landing-font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --landing-danger-bg: #fef2f2;
  --landing-danger: #b91c1c;
  --landing-ok-bg: #ecfdf5;
  --landing-ok: #047857;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--landing-font);
  color: var(--landing-text);
  background: var(--landing-page);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

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

.landing-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.landing-wrap {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* Header */
.landing-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(248, 250, 252, 0.92);
  border-bottom: 1px solid var(--landing-border);
}

.landing-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  flex-shrink: 0;
}

.landing-brand img {
  height: 2.25rem;
  width: auto;
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.landing-nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--landing-muted);
  text-decoration: none;
}

.landing-nav-link:hover {
  color: var(--landing-primary);
}

.landing-nav-anchors {
  display: none;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 720px) {
  .landing-nav-anchors {
    display: flex;
  }
}

.vr-locale-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  user-select: none;
}

.vr-locale-switch-item {
  color: #64748b;
  text-decoration: none;
  padding: 0.2rem 0.15rem;
  line-height: 1;
}

.vr-locale-switch-item:hover {
  color: #0f766e;
}

.vr-locale-switch-item.is-active {
  color: #0f766e;
  font-weight: 750;
}

.vr-locale-switch-sep {
  color: #cbd5e1;
}

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.15rem;
  border-radius: 0.65rem;
  font-size: 0.9375rem;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.landing-btn-primary {
  background: var(--landing-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.25);
}

.landing-btn-primary:hover {
  background: var(--landing-secondary);
}

.landing-btn-ghost {
  background: transparent;
  color: var(--landing-text);
  border-color: var(--landing-border);
}

.landing-btn-ghost:hover {
  border-color: rgba(15, 118, 110, 0.45);
  color: var(--landing-primary);
}

.landing-btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
}

/* Hero */
.landing-hero {
  padding: 2.5rem 0 3rem;
}

.landing-hero-panel {
  display: grid;
  gap: 2rem;
  padding: 2rem 1.5rem;
  border-radius: var(--landing-radius);
  border: 1px solid var(--landing-border);
  background:
    linear-gradient(135deg, var(--landing-primary-soft), transparent 55%),
    var(--landing-surface);
  box-shadow: var(--landing-shadow);
}

@media (min-width: 900px) {
  .landing-hero-panel {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    padding: 2.75rem 2.5rem;
    gap: 2.5rem;
  }
}

.landing-eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--landing-primary);
}

.landing-hero-logo {
  height: 3.5rem;
  width: auto;
  margin: 0 0 1.1rem;
}

@media (min-width: 900px) {
  .landing-hero-logo {
    height: 4.25rem;
  }
}

.landing-hero-title {
  margin: 0 0 0.85rem;
  font-size: clamp(1.65rem, 3.2vw, 2.35rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.2;
  max-width: 24ch;
}

.landing-hero-lead {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--landing-muted);
  max-width: 36rem;
}

.landing-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.landing-hero-note {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  color: var(--landing-muted);
}

/* Preview mock */
.landing-preview {
  border-radius: calc(var(--landing-radius) - 0.15rem);
  border: 1px solid var(--landing-border);
  background: var(--landing-surface-alt);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  min-height: 16rem;
}

.landing-preview-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.landing-preview-badge {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--landing-primary);
  background: var(--landing-primary-soft);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
}

.landing-preview-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.55rem;
  height: 7.5rem;
  padding: 0.5rem 0.25rem 0;
}

.landing-preview-bar-col {
  flex: 1;
  border-radius: 0.35rem 0.35rem 0.15rem 0.15rem;
  background: linear-gradient(180deg, #14b8a6, var(--landing-primary));
  opacity: 0.92;
  transform-origin: bottom;
  min-height: 0.35rem;
  animation: landing-bar-wave-1 20s ease infinite;
}

.landing-preview-bar-col:nth-child(2) {
  animation-name: landing-bar-wave-2;
}
.landing-preview-bar-col:nth-child(3) {
  animation-name: landing-bar-wave-3;
}
.landing-preview-bar-col:nth-child(4) {
  animation-name: landing-bar-wave-4;
}
.landing-preview-bar-col:nth-child(5) {
  animation-name: landing-bar-wave-5;
}

@keyframes landing-bar-wave-1 {
  0%, 50%, 100% { transform: scaleY(0.15); opacity: 0.35; }
  3.5%, 46.5% { transform: scaleY(1); opacity: 0.92; }
  52% { transform: scaleY(0.15); opacity: 0.35; }
  55.5%, 96.5% { transform: scaleY(1); opacity: 0.92; }
}
@keyframes landing-bar-wave-2 {
  0%, 0.5%, 50%, 100% { transform: scaleY(0.15); opacity: 0.35; }
  4%, 46.5% { transform: scaleY(1); opacity: 0.92; }
  51.5% { transform: scaleY(0.15); opacity: 0.35; }
  55%, 96.5% { transform: scaleY(1); opacity: 0.92; }
}
@keyframes landing-bar-wave-3 {
  0%, 1%, 50%, 100% { transform: scaleY(0.15); opacity: 0.35; }
  4.5%, 46.5% { transform: scaleY(1); opacity: 0.92; }
  51% { transform: scaleY(0.15); opacity: 0.35; }
  54.5%, 96.5% { transform: scaleY(1); opacity: 0.92; }
}
@keyframes landing-bar-wave-4 {
  0%, 1.5%, 50%, 100% { transform: scaleY(0.15); opacity: 0.35; }
  5%, 46.5% { transform: scaleY(1); opacity: 0.92; }
  50.5% { transform: scaleY(0.15); opacity: 0.35; }
  54%, 96.5% { transform: scaleY(1); opacity: 0.92; }
}
@keyframes landing-bar-wave-5 {
  0%, 2%, 50%, 100% { transform: scaleY(0.15); opacity: 0.35; }
  5.5%, 46.5% { transform: scaleY(1); opacity: 0.92; }
  53.5%, 96.5% { transform: scaleY(1); opacity: 0.92; }
}

@media (prefers-reduced-motion: reduce) {
  .landing-preview-bar-col {
    animation: none;
  }
}

.landing-preview-table {
  display: grid;
  gap: 0.35rem;
}

.landing-preview-row {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr 0.6fr;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--landing-muted);
}

.landing-preview-row strong {
  color: var(--landing-text);
  font-weight: 650;
}

.landing-preview-row.is-head {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.65rem;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--landing-border);
}

/* Sections */
.landing-section {
  padding: 0.5rem 0 3rem;
}

.landing-section-head {
  margin: 0 0 1.25rem;
  max-width: 42rem;
}

.landing-section-title {
  margin: 0.35rem 0 0;
  font-size: 1.45rem;
  font-weight: 750;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.landing-section-hint {
  margin: 0.45rem 0 0;
  font-size: 0.95rem;
  color: var(--landing-muted);
  line-height: 1.5;
}

.landing-about-card {
  padding: 1.5rem 1.4rem;
  border-radius: var(--landing-radius);
  border: 1px solid var(--landing-border);
  background: var(--landing-surface);
  box-shadow: var(--landing-shadow);
}

.landing-about-card p {
  margin: 0 0 0.85rem;
  color: var(--landing-muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.landing-about-card p:last-child {
  margin-bottom: 0;
}

.landing-about-hint {
  font-weight: 650;
  color: var(--landing-text) !important;
}

.landing-cards {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .landing-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.landing-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.15rem 1.2rem;
  border-radius: var(--landing-radius);
  border: 1px solid var(--landing-border);
  background: var(--landing-surface);
}

.landing-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--landing-primary);
}

.landing-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 750;
}

.landing-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--landing-muted);
  line-height: 1.5;
}

.landing-products {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 720px) {
  .landing-products {
    grid-template-columns: 1fr 1fr;
  }
}

.landing-product {
  padding: 1.35rem 1.3rem;
  border-radius: var(--landing-radius);
  border: 1px solid var(--landing-border);
  background: var(--landing-surface);
  box-shadow: var(--landing-shadow);
}

.landing-product-badge {
  display: inline-block;
  margin-bottom: 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--landing-primary);
  background: var(--landing-primary-soft);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
}

.landing-product h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 750;
}

.landing-product p {
  margin: 0;
  color: var(--landing-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.landing-product-actions {
  margin-top: 1rem !important;
}

/* Contact */
.landing-contact-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .landing-contact-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }
}

.landing-form {
  padding: 1.35rem 1.3rem;
  border-radius: var(--landing-radius);
  border: 1px solid var(--landing-border);
  background: var(--landing-surface);
  box-shadow: var(--landing-shadow);
}

.landing-field {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.95rem;
}

.landing-field label {
  font-size: 0.875rem;
  font-weight: 650;
}

.landing-field input,
.landing-field textarea {
  width: 100%;
  border: 1px solid var(--landing-border);
  border-radius: 0.65rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
  background: #fff;
  color: var(--landing-text);
}

.landing-field input:focus,
.landing-field textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.35);
  border-color: var(--landing-primary);
}

.landing-field textarea {
  min-height: 8rem;
  resize: vertical;
}

.landing-hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.landing-form-note {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: var(--landing-muted);
}

.landing-alert {
  margin: 0 0 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.65rem;
  font-size: 0.9rem;
}

.landing-alert-ok {
  background: var(--landing-ok-bg);
  color: var(--landing-ok);
}

.landing-alert-error {
  background: var(--landing-danger-bg);
  color: var(--landing-danger);
}

/* Footer */
.landing-footer {
  margin-top: auto;
  padding: 1.75rem 0 2rem;
  border-top: 1px solid var(--landing-border);
  background: rgba(255, 255, 255, 0.55);
}

.landing-footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.landing-footer p {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  color: var(--landing-muted);
}

.landing-footer strong {
  color: var(--landing-text);
}

.landing-footer a {
  color: var(--landing-primary);
  font-weight: 650;
  text-decoration: none;
}

.landing-footer a:hover {
  text-decoration: underline;
}