:root {
  --landing-bg: #f3f6fb;
  --landing-surface: #ffffff;
  --landing-ink: #0f172a;
  --landing-muted: #64748b;
  --landing-primary: #2563eb;
  --landing-primary-hover: #1d4ed8;
  --landing-accent: #0ea5e9;
  --landing-line: #e2e8f0;
  --landing-radius: 16px;
  --landing-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --landing-font: "Vazirmatn", "Tahoma", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

.landing-body {
  margin: 0;
  font-family: var(--landing-font);
  color: var(--landing-ink);
  background: var(--landing-bg);
  line-height: 1.7;
}

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

.landing-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(243, 246, 251, 0.86);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.landing-header.is-scrolled {
  border-bottom-color: var(--landing-line);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.landing-header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--landing-ink);
  margin-left: auto;
}

.landing-brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--landing-primary);
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
}

.landing-brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem 1.25rem;
}

.landing-nav-link {
  text-decoration: none;
  color: var(--landing-muted);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.15s ease;
}

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

.landing-nav-link.is-active::after {
  content: "";
  position: absolute;
  right: 0;
  left: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--landing-primary);
}

.landing-nav-mobile-only {
  display: none;
}

.landing-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.landing-nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--landing-line);
  border-radius: 12px;
  background: #fff;
  color: var(--landing-ink);
  cursor: pointer;
}

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.625rem 1.25rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.landing-btn-lg {
  min-height: 52px;
  padding-inline: 1.5rem;
  font-size: 1rem;
}

.landing-btn-primary {
  background: var(--landing-primary);
  color: #fff;
  border-color: var(--landing-primary);
}

.landing-btn-primary:hover {
  background: var(--landing-primary-hover);
  border-color: var(--landing-primary-hover);
  color: #fff;
}

.landing-btn-outline {
  background: #fff;
  color: var(--landing-primary);
  border-color: #bfdbfe;
}

.landing-btn-outline:hover {
  background: #eff6ff;
  color: var(--landing-primary);
}

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

.landing-btn-ghost:hover {
  color: var(--landing-primary);
}

/* Hero — full-bleed visual plane */
.landing-hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.landing-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(37, 99, 235, 0.22), transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 75%, rgba(14, 165, 233, 0.18), transparent 50%),
    linear-gradient(160deg, #eaf1ff 0%, #f3f6fb 45%, #eef8ff 100%);
}

.landing-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2.5rem;
  padding-block: 3.5rem 4rem;
  width: min(1120px, calc(100% - 2rem));
}

.landing-brand-hero {
  margin: 0 0 0.75rem;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--landing-primary);
  line-height: 1.1;
}

.landing-hero-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--landing-ink);
  max-width: 18ch;
}

.landing-hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  color: var(--landing-muted);
  max-width: 36ch;
}

.landing-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.landing-hero-visual {
  display: flex;
  justify-content: center;
}

.landing-hero-stage {
  width: min(100%, 520px);
  animation: landing-float 7s ease-in-out infinite;
}

.landing-hero-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 24px 40px rgba(37, 99, 235, 0.15));
}

@keyframes landing-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.landing-section {
  padding-block: 5rem;
}

.landing-section-head {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3rem;
}

.landing-section-head h2,
.landing-about-copy h2,
.landing-contact-copy h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.35;
}

.landing-section-head p,
.landing-about-copy p,
.landing-contact-copy p {
  margin: 0;
  color: var(--landing-muted);
}

.landing-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem 1.5rem;
}

.landing-feature {
  text-align: center;
}

.landing-feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #eff6ff, #e0f2fe);
  color: var(--landing-primary);
  font-size: 1.25rem;
}

.landing-feature h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.landing-feature p {
  margin: 0;
  color: var(--landing-muted);
  font-size: 0.9375rem;
}

.landing-about {
  background: #fff;
  border-block: 1px solid var(--landing-line);
}

.landing-about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: center;
}

.landing-about-panel {
  position: relative;
  min-height: 280px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 30% 30%, rgba(37, 99, 235, 0.25), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(14, 165, 233, 0.2), transparent 40%),
    linear-gradient(145deg, #1e3a8a, #2563eb 55%, #0ea5e9);
  overflow: hidden;
  box-shadow: var(--landing-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding: 2rem 1.5rem;
}

.landing-about-flow {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  width: min(100%, 17rem);
}

.landing-about-flow-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  backdrop-filter: blur(6px);
}

.landing-about-flow-step i {
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.landing-about-flow-step span {
  font-size: 0.95rem;
  font-weight: 600;
}

.landing-about-flow-step.is-done {
  background: rgba(16, 185, 129, 0.28);
  border-color: rgba(167, 243, 208, 0.45);
}

.landing-about-flow-step.is-active {
  background: rgba(255, 255, 255, 0.92);
  border-color: #fff;
  color: #1e3a8a;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
  transform: translateX(-0.35rem);
}

.landing-about-flow-step.is-active i {
  background: #2563eb;
  color: #fff;
}

.landing-about-flow-line {
  width: 2px;
  height: 1rem;
  margin-inline-start: 1.85rem;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.15));
}

.landing-about-flow-caption {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  font-weight: 500;
}

.landing-about-copy p + p {
  margin-top: 0.875rem;
}

.landing-about-copy .landing-btn {
  margin-top: 1.5rem;
}

.landing-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: stretch;
}

.landing-price {
  position: relative;
  background: #fff;
  border: 1px solid var(--landing-line);
  border-radius: var(--landing-radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.landing-price:hover {
  transform: translateY(-4px);
  box-shadow: var(--landing-shadow);
}

.landing-price--featured {
  border-color: var(--landing-primary);
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.14);
  transform: scale(1.02);
}

.landing-price-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--landing-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

.landing-price h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
}

.landing-price-amount strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--landing-ink);
}

.landing-price-amount span {
  color: var(--landing-muted);
  font-size: 0.875rem;
}

.landing-price ul {
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.landing-price li {
  position: relative;
  padding-right: 1.25rem;
  color: var(--landing-muted);
  font-size: 0.9375rem;
}

.landing-price li::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--landing-accent);
}

.landing-price .landing-btn {
  width: 100%;
}

.landing-contact {
  background:
    linear-gradient(180deg, #eff6ff 0%, #f8fbff 100%);
}

.landing-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.landing-contact-meta {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.landing-contact-meta li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--landing-ink);
  font-weight: 600;
}

.landing-contact-meta i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--landing-primary);
  border: 1px solid var(--landing-line);
}

.landing-contact-form {
  background: #fff;
  border: 1px solid var(--landing-line);
  border-radius: var(--landing-radius);
  padding: 1.5rem;
  box-shadow: var(--landing-shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  scroll-margin-top: 6.5rem;
}

.landing-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.landing-field label {
  font-size: 0.8125rem;
  font-weight: 700;
}

.landing-field input,
.landing-field textarea {
  width: 100%;
  border: 1px solid var(--landing-line);
  border-radius: 12px;
  background: #f8fafc;
  padding: 0.75rem 0.875rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--landing-ink);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.landing-field input:focus,
.landing-field textarea:focus {
  border-color: var(--landing-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  background: #fff;
}

.landing-form-note {
  margin: 0;
  color: #15803d;
  font-size: 0.875rem;
  font-weight: 600;
}

.landing-form-note--error {
  color: #b91c1c;
}

.landing-footer {
  background: #0b1220;
  color: #94a3b8;
  padding-block: 3rem 2rem;
}

.landing-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.landing-footer-brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.landing-footer-brand strong {
  display: block;
  color: #fff;
  font-size: 1.125rem;
}

.landing-footer-brand p {
  margin: 0.125rem 0 0;
  font-size: 0.875rem;
}

.landing-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.landing-footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
}

.landing-footer-links a:hover {
  color: #fff;
}

.landing-footer-copy {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  font-size: 0.8125rem;
}

@media (max-width: 960px) {
  .landing-hero-grid,
  .landing-about-grid,
  .landing-contact-grid,
  .landing-pricing-grid,
  .landing-feature-grid {
    grid-template-columns: 1fr;
  }

  .landing-hero {
    min-height: auto;
  }

  .landing-hero-copy h1 {
    max-width: none;
  }

  .landing-price--featured {
    transform: none;
  }

  .landing-hero-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  .landing-nav-toggle {
    display: grid;
    place-items: center;
    order: 2;
  }

  .landing-header-actions {
    display: none;
  }

  .landing-nav {
    display: none;
    position: absolute;
    top: 72px;
    right: 1rem;
    left: 1rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border: 1px solid var(--landing-line);
    border-radius: 14px;
    padding: 0.5rem;
    box-shadow: var(--landing-shadow);
  }

  .landing-nav.is-open {
    display: flex;
  }

  .landing-nav-link {
    padding: 0.75rem 0.875rem;
  }

  .landing-nav-mobile-only {
    display: block;
    margin-top: 0.25rem;
    border-top: 1px solid var(--landing-line);
    font-weight: 600;
    color: var(--landing-primary);
  }

  .landing-nav-link.is-active::after {
    display: none;
  }

  .landing-feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .landing-section {
    padding-block: 3.5rem;
  }
}

@media (max-width: 520px) {
  .landing-feature-grid {
    grid-template-columns: 1fr;
  }

  .landing-brand-hero {
    font-size: 2.25rem;
  }
}

/* Entrance motion */
.landing-hero-copy,
.landing-hero-visual,
.landing-feature,
.landing-about-copy,
.landing-about-visual,
.landing-price,
.landing-contact-copy,
.landing-contact-form {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.landing-hero-copy.is-visible,
.landing-hero-visual.is-visible,
.landing-feature.is-visible,
.landing-about-copy.is-visible,
.landing-about-visual.is-visible,
.landing-price.is-visible,
.landing-contact-copy.is-visible,
.landing-contact-form.is-visible {
  opacity: 1;
  transform: none;
}

.landing-hero-copy.is-visible {
  transition-delay: 0.05s;
}

.landing-hero-visual.is-visible {
  transition-delay: 0.18s;
}

.field-required-mark {
  color: #dc2626;
  font-weight: 700;
  margin-inline-start: 0.15rem;
}