* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

:root {
  --bg: #f2f4f8;
  --text: #11131a;
  --muted: #5b6476;
  --card: #ffffff;
  --card-strong: #eef1f7;
  --border: rgba(17, 19, 26, 0.12);
  --accent: #aade3f;
  --accent-strong: #7fbf2a;
  --shadow: 0 20px 40px rgba(17, 19, 26, 0.12);
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
}

body.theme-dark {
  --bg: #0c111b;
  --text: #f6f7fb;
  --muted: #96a0b7;
  --card: #151b2d;
  --card-strong: #1d2540;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #aade3f;
  --accent-strong: #7fbf2a;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

body.theme-light {
  --bg: #f2f4f8;
  --text: #11131a;
  --muted: #5b6476;
  --card: #ffffff;
  --card-strong: #eef1f7;
  --border: rgba(17, 19, 26, 0.12);
  --accent: #aade3f;
  --accent-strong: #7fbf2a;
  --shadow: 0 20px 40px rgba(17, 19, 26, 0.12);
}

.app-shell {
  width: min(420px, 100%);
  padding: 24px 20px 100px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.app-header h1 {
  font-size: 1.4rem;
  white-space: nowrap;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.theme-toggle input {
  display: none;
}

.toggle-track {
  width: 42px;
  height: 22px;
  background: var(--card-strong);
  border-radius: 999px;
  position: relative;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s ease;
}

.toggle-thumb {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  top: 1px;
  left: 1px;
  transition: transform 0.2s ease;
}

.theme-toggle input:checked + .toggle-track .toggle-thumb {
  transform: translateX(20px);
  background: var(--accent-strong);
}

.toggle-label {
  font-weight: 600;
}

.balance-card {
  background: linear-gradient(135deg, var(--card-strong), var(--card));
  border-radius: 18px;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
}

.balance-card h2 {
  font-size: 1.8rem;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.section-card {
  background: var(--card);
  border-radius: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  color: var(--text);
  position: relative;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.section-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.section-card h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.section-card p {
  color: var(--muted);
  font-size: 0.85rem;
}

.icon {
  font-size: 1.8rem;
}

.gaming-card {
  background: radial-gradient(circle at top, #a78bfa, #7c3aed 45%, #312e81 85%);
  border: 1px solid rgba(124, 58, 237, 0.8);
  overflow: hidden;
  animation: glow 3s ease-in-out infinite;
}

body.theme-light .gaming-card {
  background: radial-gradient(circle at top, #ede9fe, #c7d2fe 55%, #a5b4fc 100%);
  border: 1px solid rgba(124, 58, 237, 0.45);
}

.gaming-card::after {
  content: '';
  position: absolute;
  inset: -40% -40%;
  background: conic-gradient(from 120deg, rgba(255, 255, 255, 0.2), transparent 40%);
  animation: spin 6s linear infinite;
}

.gaming-card * {
  position: relative;
  z-index: 1;
}

.promo-banner {
  background: var(--card);
  border-radius: 16px;
  padding: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--border);
}

.bottom-nav {
  position: fixed;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: min(420px, calc(100% - 32px));
  background: var(--card);
  border-radius: 16px;
  padding: 12px;
  display: flex;
  justify-content: space-around;
  gap: 8px;
  border: 1px solid var(--border);
}

.bottom-nav button {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
}

.primary,
.secondary {
  border: none;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.secondary {
  background: var(--card-strong);
  color: var(--text);
}

.promo-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
}

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

.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 18, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}

.modal {
  background: var(--card);
  border-radius: 18px;
  padding: 20px;
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  border: 1px solid var(--border);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.field input {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-strong);
  color: var(--text);
  padding: 10px 12px;
}

.error {
  color: #f87171;
  font-size: 0.85rem;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.auth-preview {
  word-break: break-all;
  font-size: 0.8rem;
}

.auth-preview a {
  color: var(--accent);
  text-decoration: none;
}

@keyframes glow {
  0% {
    box-shadow: 0 0 0 rgba(124, 58, 237, 0.2);
  }
  50% {
    box-shadow: 0 0 24px rgba(124, 58, 237, 0.55);
  }
  100% {
    box-shadow: 0 0 0 rgba(124, 58, 237, 0.2);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}