:root {
  --color-primary: #2563eb;
  --color-secondary: #1e293b;
  --color-accent: #f8fafc;
  --color-muted: #94a3b8;
  --color-card: rgba(15, 23, 42, 0.75);
  --color-card-strong: rgba(37, 99, 235, 0.15);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --radius-soft: 1.5rem;
  --radius-pill: 999px;
  --shadow-card: 0 35px 65px rgba(15, 23, 42, 0.35);
  --shadow-strong: inset 0 0 0 1px rgba(248, 250, 252, 0.35);
  --border-thin: 1px solid rgba(248, 250, 252, 0.1);
  --transition-soft: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.25), transparent 35%),
    radial-gradient(circle at 90% 0%, rgba(14, 165, 233, 0.2), transparent 40%),
    #0f172a;
  color: #f8fafc;
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}


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

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

.site-shell {
  min-height: 100vh;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.75) 48%, rgba(15, 23, 42, 0.95) 100%);
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: var(--border-thin);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.logo-mark {
  font-weight: 600;
  letter-spacing: 0.1em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.logo-mark span {
  color: var(--color-primary);
}

.nav-menu {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-menu a {
  min-width: 44px;
}

.nav-menu a {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-soft);
  font-size: 0.95rem;
  transition: var(--transition-soft);
}

.nav-menu a.is-active,
.nav-menu a:hover,
.nav-menu a:focus-visible {
  background: rgba(37, 99, 235, 0.2);
  outline: none;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid rgba(248, 250, 252, 0.3);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-pill);
  color: #f8fafc;
  cursor: pointer;
  transition: var(--transition-soft);
}

.mobile-menu-btn:hover,
.mobile-menu-btn:focus-visible {
  border-color: var(--color-primary);
}

.hero-ensemble {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.hero-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.hero-text {
  max-width: 620px;
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  font-size: clamp(2.8rem, 4vw, 3.6rem);
  margin-bottom: 1rem;
}

.hero-subline {
  color: var(--color-muted);
  font-size: 1rem;
}

.hero-visual {
  position: relative;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.4), rgba(56, 189, 248, 0.15));
  border-radius: var(--radius-soft);
  padding: var(--spacing-md);
  border: var(--border-thin);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.hero-visual img {
  border-radius: calc(var(--radius-soft) - 0.5rem);
  height: 100%;
  width: 100%;
  object-fit: cover;
  max-width: 100%;
}

.hero-card {
  margin-top: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(15, 23, 42, 0.7);
  border-radius: var(--radius-soft);
  border: var(--border-thin);
}

.hero-card strong {
  display: block;
  font-size: 1.25rem;
}

.section-layer {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg) var(--spacing-md) calc(var(--spacing-xl));
  position: relative;
  overflow: hidden;
  min-height: 100px;
}

.section-layer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.3), transparent 55%);
  pointer-events: none;
}

.section-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-heading::before {
  content: '';
  flex: 0 0 36px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 2.4rem);
}

.section-heading p {
  margin-top: 0.25rem;
  color: var(--color-muted);
}

.signature-grid {
  display: grid;
  gap: var(--spacing-md);
}

.signature-card {
  padding: var(--spacing-md);
  background: var(--color-card);
  border-radius: var(--radius-soft);
  border: var(--border-thin);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: var(--transition-soft);
}

.signature-card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(140deg, rgba(37, 99, 235, 0.2), transparent 50%);
  opacity: 0;
  transition: var(--transition-soft);
}

.signature-card:hover,
.signature-card:focus-within {
  transform: translateY(-4px);
}

.signature-card:hover::after,
.signature-card:focus-within::after {
  opacity: 1;
}

.signature-card h3 {
  margin-top: 0;
  font-size: 1.35rem;
}

.signature-card p {
  color: rgba(248, 250, 252, 0.85);
}

.signature-card ul {
  padding-left: 1rem;
  color: var(--color-muted);
}

.diagonal-divider {
  position: absolute;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.5), transparent);
  transform: skewY(-6deg);
  transform-origin: top left;
  top: -80px;
  z-index: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 0.85rem 1.8rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition-soft);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, #34d399, #2563eb);
  color: var(--color-secondary);
  box-shadow: 0 20px 35px rgba(37, 99, 235, 0.35);
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: inherit;
  border: 1px solid rgba(248, 250, 252, 0.4);
  opacity: 0;
  transition: var(--transition-soft);
}

.btn-primary:hover::after,
.btn-primary:focus-visible::after {
  opacity: 1;
}

.btn-secondary {
  border: 1px solid rgba(248, 250, 252, 0.4);
  color: var(--color-accent);
  background: transparent;
}

.btn-secondary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(37, 99, 235, 0.4), transparent);
  opacity: 0;
  transition: var(--transition-soft);
}

.btn-secondary:hover::after,
.btn-secondary:focus-visible::after {
  opacity: 1;
}

.btn-link {
  padding: 0;
  font-weight: 500;
  border: none;
  background: none;
}

.btn-link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.btn-link:hover::after,
.btn-link:focus-visible::after {
  transform: scaleX(1);
}

.card-grid {
  display: grid;
  gap: var(--spacing-md);
}

.card-grid .card {
  background: rgba(15, 23, 42, 0.75);
  border-radius: var(--radius-soft);
  border: var(--border-thin);
  padding: var(--spacing-md);
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 45px rgba(2, 6, 23, 0.5);
  display: flex;
  flex-direction: column;
  min-height: 160px;
}

.card-grid .card::before {
  content: '';
  position: absolute;
  inset: -50% auto auto 50%;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.4), transparent 65%);
  opacity: 0;
  transition: var(--transition-soft);
}

.card-grid .card:hover::before,
.card-grid .card:focus-within::before {
  opacity: 1;
}

.section-divider {
  height: 60px;
  overflow: hidden;
}

.section-divider svg {
  display: block;
  width: 100%;
}

.form-field {
  width: 100%;
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-field input,
.form-field textarea {
  border-radius: var(--radius-soft);
  border: var(--border-thin);
  background: rgba(15, 23, 42, 0.5);
  padding: 0.75rem 1rem;
  color: #f8fafc;
  font: inherit;
}

.form-field input:focus-visible,
.form-field textarea:focus-visible {
  outline: 2px solid var(--color-primary);
}

.form-hint {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.cookie-banner {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  background: rgba(15, 23, 42, 0.95);
  border: var(--border-thin);
  border-radius: var(--radius-soft);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  z-index: 30;
}

.cookie-banner button {
  margin-left: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 640px) {
  .hero-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .signature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .nav-menu {
    gap: 1.5rem;
  }

  .mobile-menu-btn {
    display: none;
  }
}

@media (max-width: 1023px) {
.nav-menu {
    position: absolute;
    top: 100%;
    right: 1.25rem;
    background: rgba(15, 23, 42, 0.95);
    border-radius: var(--radius-soft);
    flex-direction: column;
    padding: var(--spacing-sm);
    border: var(--border-thin);
    gap: 0;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-soft);
  }
  
  .nav-menu.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  
  .nav-menu a {
    padding: 0.75rem 1.25rem;
    min-height: 44px;
    display: flex;
    align-items: center;
    width: 100%;
  }
  
  .mobile-menu-btn {
    display: inline-flex;
  }
}


@media (prefers-reduced-motion: reduce) {
  .btn,
  .signature-card,
  .card,
  .reveal {
    transition: none;
  }
}