* {
  box-sizing: border-box;
}

:root {
  --bg: #07111f;
  --bg-soft: #0f1b2c;
  --panel: rgba(15, 27, 44, 0.82);
  --panel-strong: #12233a;
  --text: #eef4ff;
  --muted: #aab7cf;
  --line: rgba(255, 255, 255, 0.08);
  --primary: #7c5cff;
  --primary-2: #40d8ff;
  --success: #1fbf75;
  --danger: #ff5d73;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(124, 92, 255, 0.16), transparent 30%),
    radial-gradient(circle at top right, rgba(64, 216, 255, 0.15), transparent 28%),
    linear-gradient(180deg, #07111f, #091423 30%, #08111d 100%);
  color: var(--text);
  min-height: 100vh;
}

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.narrow {
  width: min(680px, calc(100% - 32px));
}

.narrow-wide {
  width: min(900px, calc(100% - 32px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  background: rgba(7, 17, 31, 0.72);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand strong {
  display: block;
  font-size: 1rem;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
  font-weight: 800;
  box-shadow: var(--shadow);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.main-nav > a:not(.btn) {
  color: var(--muted);
}

.main-nav > a:not(.btn):hover {
  color: var(--text);
}

.inline-form {
  display: inline-flex;
  margin: 0;
}

.hero {
  padding: 72px 0 32px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-2);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero h1,
.section h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.05;
}

.section h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 760px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  padding: 12px 18px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #5fd9ff);
  color: white;
  box-shadow: var(--shadow);
}

.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-large {
  padding: 16px 24px;
  font-size: 1rem;
}

.stats-grid,
.service-grid,
.game-grid,
.dashboard-grid,
.contact-grid,
.game-page-grid,
.footer-grid {
  display: grid;
  gap: 18px;
}

.stats-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.stat-card,
.panel,
.game-card,
.service-card,
.glass-card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 20px;
}

.stat-card strong {
  display: block;
  font-size: 1.9rem;
  margin-bottom: 8px;
}

.stat-card span {
  color: var(--muted);
}

.glass-card,
.panel,
.game-card,
.service-card {
  padding: 24px;
}

.hero-panel {
  display: flex;
  justify-content: flex-end;
}

.feature-list,
.footer-links,
.game-instructions ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.section {
  padding: 36px 0 72px;
}

.section-muted {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

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

.game-card-top,
.game-actions,
.game-toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.game-card h3,
.service-card h3,
.panel h2,
.panel h3 {
  margin-top: 0;
}

.game-card p,
.service-card p,
.panel p {
  color: var(--muted);
  line-height: 1.75;
}

.game-chip,
.mini-badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.16);
  color: #d8d0ff;
  font-size: 0.86rem;
  border: 1px solid rgba(124, 92, 255, 0.26);
}

.game-chip.muted {
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border-color: var(--line);
}

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

.contact-grid {
  grid-template-columns: 0.9fr 1.1fr;
  align-items: start;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.form-grid label {
  display: grid;
  gap: 8px;
}

.form-grid label span {
  color: var(--muted);
  font-size: 0.95rem;
}

.form-grid input,
.form-grid textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  outline: none;
}

.form-grid input:focus,
.form-grid textarea:focus {
  border-color: rgba(124, 92, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.12);
}

.full {
  grid-column: 1 / -1;
}

.auth-section {
  padding: 56px 0 86px;
}

.auth-links {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.auth-links a {
  color: var(--primary-2);
}

.flash-stack {
  padding-top: 16px;
}

.flash {
  padding: 14px 18px;
  border-radius: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
}

.flash-success {
  background: rgba(31, 191, 117, 0.12);
  color: #bdf7da;
}

.flash-error {
  background: rgba(255, 93, 115, 0.12);
  color: #ffd4db;
}

.dashboard-grid {
  grid-template-columns: 1fr 1fr;
}

.game-list,
.score-list {
  display: grid;
  gap: 12px;
}

.game-list-item,
.score-list-item,
.leaderboard-item,
.leaderboard-table-row,
.leaderboard-table-head {
  display: grid;
  align-items: center;
  gap: 12px;
}

.game-list-item {
  grid-template-columns: 1fr auto;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.game-list-item small,
.score-list-item small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
}

.score-list-item,
.leaderboard-item {
  grid-template-columns: 1fr auto;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.game-page-grid {
  grid-template-columns: 1.15fr 0.85fr;
  align-items: start;
}

.game-panel {
  min-height: 620px;
}

.reaction-rush {
  display: grid;
  gap: 18px;
}

.game-status {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.game-status > div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.game-status strong {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
}

.game-status span {
  font-size: 1.6rem;
  font-weight: 800;
}

.play-field {
  position: relative;
  min-height: 420px;
  border-radius: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(124, 92, 255, 0.08), rgba(64, 216, 255, 0.05)),
    rgba(255, 255, 255, 0.02);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.target-dot {
  position: absolute;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  background: radial-gradient(circle at 30% 30%, #ffffff, #5fd9ff 35%, #7c5cff 80%);
  box-shadow: 0 12px 28px rgba(92, 112, 255, 0.32);
}

.game-note {
  color: var(--muted);
  line-height: 1.6;
}

.leaderboard-list {
  display: grid;
  gap: 10px;
}

.leaderboard-item {
  grid-template-columns: auto 1fr auto;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.leaderboard-table {
  display: grid;
  gap: 12px;
}

.leaderboard-table-head,
.leaderboard-table-row {
  grid-template-columns: 110px 1fr 140px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.leaderboard-table-head {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.leaderboard-table-row {
  background: rgba(255, 255, 255, 0.02);
}

.center {
  text-align: center;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 44px;
  background: rgba(0, 0, 0, 0.16);
}

.footer-grid {
  grid-template-columns: 1.1fr 0.7fr 0.7fr;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li + li {
  margin-top: 8px;
}

@media (max-width: 980px) {
  .hero-grid,
  .contact-grid,
  .game-page-grid,
  .dashboard-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-head,
  .nav-row {
    align-items: start;
    flex-direction: column;
  }

  .stats-grid,
  .game-status {
    grid-template-columns: 1fr;
  }

  .main-nav {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 40px;
  }

  .glass-card,
  .panel,
  .game-card,
  .service-card {
    padding: 18px;
  }

  .container,
  .narrow,
  .narrow-wide {
    width: min(100% - 20px, 1180px);
  }

  .leaderboard-table-head,
  .leaderboard-table-row {
    grid-template-columns: 72px 1fr 90px;
    font-size: 0.92rem;
  }
}