:root {
  --background: #0a0c0f;
  --surface: #0f1115;
  --surface-contrast: #12151b;
  --text: #f5f7fb;
  --muted: #c8ceda;
  --accent: #ffd480;
  --accent-strong: #ffe7b3;
  --border: #1c2027;
  --shadow: 0 25px 80px rgba(0, 0, 0, 0.55);
  --radius: 18px;
  --max-width: 1120px;
  --transition: 180ms ease;
  --header-backdrop: rgba(10, 12, 15, 0.82);
  --nav-surface: rgba(15, 17, 21, 0.96);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --background: #ffffff;
  --surface: #ffffff;
  --surface-contrast: #f6f7fb;
  --text: #0b1224;
  --muted: #4b5563;
  --accent: #d97706;
  --accent-strong: #f59e0b;
  --border: #e2e8f0;
  --shadow: 0 22px 60px rgba(15, 23, 42, 0.08);
  --header-backdrop: rgba(255, 255, 255, 0.95);
  --nav-surface: rgba(255, 255, 255, 0.98);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(124, 231, 255, 0.08), transparent 24%),
    radial-gradient(circle at 80% 10%, rgba(169, 255, 239, 0.08), transparent 22%),
    var(--background);
  color: var(--text);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

:root[data-theme="light"] body {
  background: #ffffff;
  color: var(--text);
}

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

a:hover {
  color: var(--accent);
}

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

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-backdrop);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}

.brand-badge {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 0 0 6px rgba(255, 212, 128, 0.15);
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 212, 128, 0.4);
  outline: none;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle span + span {
  margin-top: 6px;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav-actions nav {
  margin-right: 8px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(124, 231, 255, 0.4);
  outline: none;
  transform: translateY(-1px);
}

.theme-toggle__icon {
  font-size: 1.1rem;
}

nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  color: var(--muted);
}

nav a:hover,
nav a:focus-visible {
  border-color: var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
  outline: none;
}

nav a[aria-current="page"] {
  color: var(--text);
  border-color: var(--border);
  background: rgba(124, 231, 255, 0.06);
  box-shadow: inset 0 0 0 1px rgba(124, 231, 255, 0.12);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 20px 80px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 0 24px;
  color: var(--muted);
  max-width: 620px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  font-size: 0.9rem;
}

.badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(124, 231, 255, 0.12);
}

.buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0));
  color: var(--text);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.button:hover,
.button:focus-visible {
  border-color: rgba(124, 231, 255, 0.4);
  box-shadow: 0 8px 24px rgba(124, 231, 255, 0.1);
  transform: translateY(-2px);
  outline: none;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
}

.section {
  margin-top: 72px;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.section-header h2 {
  margin: 0;
  font-size: 1.8rem;
}

.section-header p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  padding: 24px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: -40% auto auto -40%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(124, 231, 255, 0.09), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition), transform var(--transition);
  transform: translate3d(0, 0, 0);
}

.card:hover::after {
  opacity: 1;
  transform: translate3d(10px, 10px, 0);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.grid-two {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.list li {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

blockquote {
  margin: 0;
  padding: 20px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  color: var(--muted);
}

form {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}

label {
  font-weight: 600;
  letter-spacing: 0.01em;
}

input,
textarea,
select {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(124, 231, 255, 0.4);
  border-color: rgba(124, 231, 255, 0.4);
}

input[aria-hidden="true"] {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

small {
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  padding: 32px 0;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-nav a {
  color: var(--muted);
}

.badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge-pill {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.9rem;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.table th,
.table td {
  text-align: left;
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(124, 231, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(124, 231, 255, 0.3);
}

.status {
  margin-top: 8px;
  color: var(--muted);
}

.hero-visual {
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0));
  box-shadow: var(--shadow);
}

.kpi {
  display: grid;
  gap: 12px;
}

.kpi span {
  font-size: 2rem;
  font-weight: 700;
}

.cookie-banner {
  position: fixed;
  inset: auto 24px 24px 24px;
  display: grid;
  gap: 12px;
  align-items: center;
  grid-template-columns: 1fr auto;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.cookie-banner p {
  margin: 4px 0 0;
  color: var(--muted);
}

.cookie-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.cookie-status {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.9rem;
}

.cookie-banner[data-state="hidden"] {
  display: none;
}

@media (max-width: 720px) {
  .navbar {
    align-items: center;
  }

  nav {
    position: absolute;
    top: 100%;
    left: 20px;
    right: 20px;
    background: var(--nav-surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 4px 10px;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }

  nav[data-open="true"] {
    max-height: 420px;
  }

  nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
  }

  nav li {
    width: 100%;
  }

  nav a {
    width: 100%;
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .theme-toggle {
    padding: 10px;
  }

  .theme-toggle__label {
    display: none;
  }
}