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

:root {
  --brand: #5B5CF6;
  --brand-light: #7B7CF8;
  --brand-dim: rgba(91, 92, 246, 0.15);
  --accent: #06CFC4;
  --accent-light: #26EFE4;
  --accent-dim: rgba(6, 207, 196, 0.15);
  --bg-base: #080811;
  --bg-surface: #0E0E1A;
  --bg-elevated: #141424;
  --bg-card: #191929;
  --border: #242438;
  --border-subtle: #1B1B2E;
  --text-primary: #F0F0FA;
  --text-secondary: #8A8AAA;
  --text-muted: #52526E;
  --text-disabled: #35354F;
  --success: #10B981;
  --success-dim: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.30);
  --warning: #F59E0B;
  --warning-dim: rgba(245, 158, 11, 0.12);
  --warning-border: rgba(245, 158, 11, 0.30);
  --error: #EF4444;
  --error-dim: rgba(239, 68, 68, 0.12);
  --error-border: rgba(239, 68, 68, 0.30);
  --font-display: "Plus Jakarta Sans", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --shadow-brand: 0 0 24px rgba(91, 92, 246, 0.35);
  --transition: all 0.15s ease;
}

html {
  background: #05050d;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(91, 92, 246, 0.14), transparent 36%),
    radial-gradient(circle at 82% 18%, rgba(6, 207, 196, 0.10), transparent 26%),
    var(--bg-base);
}

a,
button {
  font: inherit;
}

a {
  color: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid rgba(91, 92, 246, 0.6);
  outline-offset: 2px;
}

.app-shell {
  min-height: 100vh;
}

.app-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 0 24px;
  background: rgba(8, 8, 17, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(115deg, var(--brand) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-spacer {
  flex: 1;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}

.nav-link:hover {
  color: var(--text-primary);
}

.page-wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 80px;
}

.page-header {
  text-align: center;
  margin-bottom: 40px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  margin-bottom: 18px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(91, 92, 246, 0.25);
  background: var(--brand-dim);
  color: var(--brand-light);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.page-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.page-title .grad {
  background: linear-gradient(115deg, var(--brand-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  width: min(620px, 100%);
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 15px;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
  background: linear-gradient(180deg, rgba(25, 25, 41, 0.96), rgba(14, 14, 26, 0.96));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition: var(--transition);
}

.plan-card:hover {
  border-color: #3a3a56;
  transform: translateY(-2px);
}

.plan-card.recommended {
  border-color: rgba(91, 92, 246, 0.55);
  box-shadow: 0 0 36px rgba(91, 92, 246, 0.14);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: linear-gradient(115deg, var(--brand) 0%, var(--accent) 100%);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.plan-name {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.plan-price-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-currency {
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 700;
}

.plan-price {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

.plan-period,
.plan-copy,
.plan-setup {
  color: var(--text-secondary);
  font-size: 13px;
}

.plan-copy {
  min-height: 64px;
}

.plan-divider {
  height: 1px;
  background: var(--border-subtle);
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
  flex: 1;
}

.plan-features li {
  display: flex;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.feature-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 1px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--success-dim);
  color: var(--success);
  font-size: 11px;
}

.plan-ia {
  padding-top: 14px;
  margin-top: 4px;
  border-top: 1px dashed rgba(6, 207, 196, 0.25);
}

.plan-ia strong {
  color: var(--accent);
}

.plan-ia small {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 10px;
  line-height: 1.45;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: var(--transition);
  font-size: 14px;
  font-weight: 700;
}

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

.btn-brand {
  background: var(--brand);
  color: #fff;
}

.btn-brand:hover {
  background: var(--brand-light);
  box-shadow: var(--shadow-brand);
}

.btn-accent {
  background: linear-gradient(115deg, var(--brand) 0%, var(--accent) 100%);
  color: #fff;
}

.btn-accent:hover {
  box-shadow: var(--shadow-brand);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--bg-surface);
  border-color: #3a3a56;
}

.btn-warning {
  background: var(--warning);
  color: #080811;
}

.btn-row,
.btn-stack {
  display: flex;
  gap: 12px;
}

.btn-stack {
  flex-direction: column;
}

.trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
}

.trust-item {
  color: var(--text-muted);
  font-size: 12px;
}

.plan-note {
  margin-top: 18px;
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
}

.checkout-shell {
  display: none;
}

.checkout-shell.visible {
  display: block;
}

.loading-card,
.result-card {
  width: min(540px, 100%);
  margin: 48px auto 0;
  padding: 36px;
  text-align: center;
  background: linear-gradient(180deg, rgba(25, 25, 41, 0.98), rgba(14, 14, 26, 0.98));
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.spinner-wrap {
  position: relative;
  width: 86px;
  height: 86px;
  margin: 0 auto 20px;
}

.spinner-ring,
.spinner-ring-2,
.spinner-skeleton {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.spinner-ring {
  border: 3px solid rgba(91, 92, 246, 0.16);
  border-top-color: var(--brand);
  animation: spin 1.1s linear infinite;
}

.spinner-ring-2 {
  inset: 10px;
  border: 3px solid rgba(6, 207, 196, 0.14);
  border-bottom-color: var(--accent);
  animation: spinReverse 1.4s linear infinite;
}

.spinner-skeleton {
  display: none;
  background:
    radial-gradient(circle at center, rgba(91, 92, 246, 0.3), rgba(6, 207, 196, 0.06) 52%, transparent 53%),
    linear-gradient(135deg, rgba(91, 92, 246, 0.18), rgba(6, 207, 196, 0.12));
}

.loading-title,
.result-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.loading-sub,
.result-sub {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.loading-plan-badge,
.result-plan-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(91, 92, 246, 0.25);
  background: var(--brand-dim);
  color: var(--brand-light);
  font-size: 12px;
  font-weight: 700;
}

.loading-steps,
.result-details {
  margin-top: 20px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  text-align: left;
}

.loading-step {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
}

.loading-step + .loading-step {
  margin-top: 12px;
}

.loading-step.done {
  color: var(--success);
}

.loading-step.pending {
  color: var(--text-muted);
}

.step-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}

.step-dot.done {
  background: var(--success);
}

.step-dot.pending {
  background: var(--text-disabled);
}

.loading-error-state {
  display: none;
}

.loading-error-state.visible {
  display: block;
}

.loading-normal-state.hidden {
  display: none;
}

.state-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin-bottom: 18px;
  border-radius: 24px;
  border: 2px solid var(--success-border);
  background: var(--success-dim);
}

.state-icon-wrap.failure {
  border-color: var(--error-border);
  background: var(--error-dim);
}

.state-icon-wrap.pending {
  border-color: var(--warning-border);
  background: var(--warning-dim);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.detail-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.detail-label {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.detail-value {
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  text-align: right;
}

.detail-value.ok {
  color: var(--success);
}

.detail-value.warn {
  color: var(--warning);
}

.detail-value.err {
  color: var(--error);
}

.support-line {
  display: inline-block;
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 12px;
}

.support-line a {
  color: var(--accent);
  text-decoration: none;
}

.support-line a:hover {
  text-decoration: underline;
}

.inline-status {
  display: none;
  width: min(540px, 100%);
  margin: 18px auto 0;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  font-size: 13px;
}

.inline-status.visible {
  display: block;
}

.inline-status.info {
  border: 1px solid rgba(91, 92, 246, 0.22);
  background: rgba(91, 92, 246, 0.08);
  color: var(--text-secondary);
}

.meta-line {
  margin-top: 22px;
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-mono);
}

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

@keyframes spinReverse {
  to {
    transform: rotate(-360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner-ring,
  .spinner-ring-2 {
    display: none;
  }

  .spinner-skeleton {
    display: block;
  }

  .btn,
  .plan-card {
    transition: none;
  }
}

@media (max-width: 980px) {
  .plan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .app-nav {
    padding: 0 16px;
  }

  .page-wrap {
    width: min(100% - 24px, 100%);
    padding: 28px 0 64px;
  }

  .page-header {
    margin-bottom: 28px;
  }

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

  .loading-card,
  .result-card {
    margin-top: 28px;
    padding: 28px 20px;
  }

  .detail-row,
  .btn-row {
    flex-direction: column;
  }

  .detail-value {
    text-align: left;
  }
}