:root {
  --bg: #0b111b;
  --bg-elevated: #121a27;
  --surface: #162132;
  --text: #e7eefc;
  --text-muted: #aab7cf;
  --line: #27364e;
  --accent: #3f8cff;
  --accent-strong: #62a4ff;
  --ok: #3abf7a;
  --max-width: 1160px;
  --radius: 8px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    url("/assets/bg-texture.svg") center / cover no-repeat fixed,
    radial-gradient(1100px 420px at 85% -10%, rgba(63, 140, 255, 0.18), transparent 55%),
    radial-gradient(700px 300px at 5% 0%, rgba(58, 191, 122, 0.09), transparent 55%),
    linear-gradient(180deg, #0a1018 0%, #0b111b 100%);
  line-height: 1.5;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(170, 183, 207, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(170, 183, 207, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent 72%);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-2);
  background: #fff;
  color: #000;
  padding: var(--space-2) var(--space-3);
  z-index: 999;
}

.skip-link:focus {
  left: var(--space-2);
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 17, 27, 0.78);
  backdrop-filter: blur(4px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 72px;
}

.brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--text);
  text-decoration: none;
}

nav ul {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
  gap: var(--space-3);
  flex-wrap: wrap;
}

nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.5rem;
  color: var(--text-muted);
  border-radius: 6px;
  transition: color 180ms ease, background-color 180ms ease;
}

nav a[aria-current="page"],
nav a:hover {
  color: var(--text);
  background: rgba(63, 140, 255, 0.12);
}

.menu-toggle {
  display: none;
  min-height: 44px;
  min-width: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
}

main {
  padding: var(--space-6) 0;
}

.hero {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  animation: rise-in 520ms ease both;
}

section {
  margin-bottom: var(--space-4);
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 2.5vw, 2.75rem);
}

h2 {
  font-size: clamp(1.5rem, 1.8vw, 2rem);
}

p {
  margin: 0 0 var(--space-3);
  color: var(--text-muted);
}

.lead {
  font-size: 1.125rem;
  max-width: 78ch;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: var(--space-3);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.panel {
  border: 1px solid var(--line);
  background: rgba(18, 26, 39, 0.75);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: 0 18px 32px rgba(3, 8, 18, 0.28);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
  animation: rise-in 560ms ease both;
}

.panel:hover {
  transform: translateY(-2px);
  border-color: #39567f;
  box-shadow: 0 24px 42px rgba(3, 8, 18, 0.35);
}

.panel h3 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.kicker {
  color: var(--accent-strong);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.82rem;
  margin-bottom: var(--space-2);
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.15rem 0.6rem;
  border: 1px solid rgba(98, 164, 255, 0.45);
  border-radius: 999px;
  background: rgba(63, 140, 255, 0.12);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: #3c5a83;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #061225;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(63, 140, 255, 0.32);
}

.button.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0f1724;
  color: var(--text);
  padding: 0.6rem 0.7rem;
  margin-bottom: 0.9rem;
}

.error {
  margin-top: var(--space-2);
  color: #ff9f9f;
  min-height: 1.25rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  text-align: left;
  padding: 0.8rem;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--text);
  font-weight: 600;
}

td {
  color: var(--text-muted);
}

tbody tr {
  transition: background-color 180ms ease;
}

tbody tr:hover {
  background: rgba(63, 140, 255, 0.08);
}

ul.clean {
  margin: 0;
  padding-left: 1.1rem;
}

ul.clean li {
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

footer {
  border-top: 1px solid var(--line);
  padding: var(--space-4) 0 var(--space-5);
  color: var(--text-muted);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 460ms ease, transform 460ms ease;
}

.grid-3 .panel:nth-child(2) { transition-delay: 40ms; }
.grid-3 .panel:nth-child(3) { transition-delay: 80ms; }
.grid-3 .panel:nth-child(4) { transition-delay: 120ms; }
.grid-3 .panel:nth-child(5) { transition-delay: 160ms; }
.grid-3 .panel:nth-child(6) { transition-delay: 200ms; }

@media (max-width: 900px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  nav[data-open="false"] ul {
    display: none;
  }

  nav[data-open="true"] ul {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-2) 0 var(--space-3);
  }

  nav[data-open="true"] a {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}