:root {
  --bg0: #070a12;
  --bg1: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card-strong: rgba(255, 255, 255, 0.1);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --ring: rgba(139, 92, 246, 0.55);

  --accent: #8b5cf6;
  --accent2: #22d3ee;
  --danger: #fb7185;
  --ok: #34d399;

  --radius: 16px;
  --radius-sm: 12px;
  --container: 1040px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg0: #f7f8ff;
  --bg1: #ffffff;
  --card: rgba(18, 24, 38, 0.04);
  --card-strong: rgba(18, 24, 38, 0.08);
  --text: rgba(18, 24, 38, 0.92);
  --muted: rgba(18, 24, 38, 0.7);
  --border: rgba(18, 24, 38, 0.12);
  --shadow: 0 18px 40px rgba(18, 24, 38, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  overflow-x: hidden;
  background: radial-gradient(900px 500px at 15% -10%, rgba(139, 92, 246, 0.33), transparent 60%),
    radial-gradient(700px 420px at 90% 10%, rgba(34, 211, 238, 0.2), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -3;
  pointer-events: none;
  width: 760px;
  height: 760px;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.22;
  animation: orb-float 18s ease-in-out infinite;
  will-change: transform;
}

body::before {
  top: -280px;
  left: -260px;
  background: radial-gradient(circle at 35% 30%, rgba(139, 92, 246, 0.95), transparent 60%);
}

body::after {
  bottom: -320px;
  right: -280px;
  background: radial-gradient(circle at 35% 30%, rgba(34, 211, 238, 0.9), transparent 60%);
  animation-delay: -6s;
}

@keyframes orb-float {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(70px, 40px, 0) scale(1.06);
  }
}

::selection {
  background: rgba(139, 92, 246, 0.35);
}

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

.skip {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

.skip:focus {
  left: 14px;
  top: 14px;
  z-index: 999;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg1);
  box-shadow: var(--shadow);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  z-index: 100;
  opacity: 0.95;
}

.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.65;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg1) 55%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  letter-spacing: 0.2px;
}

.brand .dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 650;
  letter-spacing: 0.3px;
  transition: background 140ms ease, color 140ms ease, transform 120ms ease;
}

.lang-btn:hover {
  background: var(--card-strong);
  color: var(--text);
}

.lang-btn[aria-pressed="true"] {
  background: color-mix(in srgb, var(--card-strong) 80%, transparent);
  color: var(--text);
}

.lang-btn:active {
  transform: translateY(1px);
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  transition: background 140ms ease, color 140ms ease;
}

.nav-links a[aria-current="page"] {
  color: var(--text);
  background: var(--card);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--card);
}

.nav-links a:focus-visible,
.theme-toggle:focus-visible,
.button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
  transition: transform 120ms ease, background 140ms ease;
}

.theme-toggle:hover {
  background: var(--card-strong);
}

.theme-toggle:active {
  transform: translateY(1px);
}

.hero {
  padding: 64px 0 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 18px;
  align-items: start;
}

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    520px circle at var(--mx, 50%) var(--my, 20%),
    rgba(139, 92, 246, 0.18),
    transparent 55%
  );
  opacity: 0;
  transition: opacity 220ms ease;
  pointer-events: none;
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(139, 92, 246, 0.35),
    rgba(34, 211, 238, 0.25),
    transparent 60%
  );
  opacity: 0.12;
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card.tilt {
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 140ms ease, border-color 160ms ease;
  will-change: transform;
}

.card.tilt:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.card.pad {
  padding: 22px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(34px, 4.1vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.6;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 70%, transparent);
  color: var(--muted);
  font-size: 13px;
}

.pill .spark {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.typewriter {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.5;
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  align-items: baseline;
  white-space: nowrap;
  overflow: hidden;
}

.typewriter [data-i18n="type_prefix"] {
  flex: 0 0 auto;
}

.typewriter-text {
  color: var(--text);
  font-weight: 560;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.caret {
  display: inline-block;
  flex: 0 0 auto;
  width: 10px;
  height: 1.1em;
  border-left: 2px solid color-mix(in srgb, var(--muted) 80%, transparent);
  transform: translateY(1px);
  animation: caret-blink 1s steps(2, jump-none) infinite;
}

@keyframes caret-blink {
  0%,
  45% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  transition: transform 120ms ease, background 140ms ease, border-color 140ms ease;
}

.button:hover {
  background: var(--card-strong);
}

.button:active {
  transform: translateY(1px);
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.95), rgba(34, 211, 238, 0.85));
}

.button.primary:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 1), rgba(34, 211, 238, 0.92));
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  filter: blur(10px);
  transition: opacity 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
    filter 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform, filter;
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stat {
  text-align: left;
}

.stat-value {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.stat-number {
  font-size: 28px;
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.05;
  background: linear-gradient(135deg, rgba(139, 92, 246, 1), rgba(34, 211, 238, 0.95));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-suffix {
  color: var(--muted);
  font-weight: 700;
}

.stat-label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 22px 0 40px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  padding: 34px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg1) 68%, transparent);
}

/* Forms */
.form {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.field {
  display: grid;
  gap: 7px;
}

label {
  color: var(--muted);
  font-size: 13px;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 65%, transparent);
  color: var(--text);
  padding: 12px 12px;
  outline: none;
  transition: border-color 140ms ease, background 140ms ease;
}

select {
  background: color-mix(in srgb, var(--bg1) 82%, var(--card));
}

select:invalid {
  color: var(--muted);
}

select option {
  background: #ffffff;
  color: #111827;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: color-mix(in srgb, var(--card) 78%, transparent);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 6px;
}

.status {
  font-size: 13px;
  color: var(--muted);
}

.status.ok {
  color: var(--ok);
}

.status.error {
  color: var(--danger);
}

.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Timeline */
.timeline {
  position: relative;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(
    180deg,
    rgba(139, 92, 246, 0.8),
    rgba(34, 211, 238, 0.65)
  );
  border-radius: 999px;
  opacity: 0.65;
}

.timeline-item {
  position: relative;
  padding-left: 28px;
}

.timeline-dot {
  position: absolute;
  left: 2px;
  top: 22px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 14px 30px rgba(139, 92, 246, 0.25);
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}

.timeline-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.timeline-date {
  font-size: 12px;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 70%, transparent);
  letter-spacing: 0.2px;
}

.timeline-title {
  font-weight: 600;
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .bg-canvas {
    display: none !important;
  }
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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