:root {
  --bg: #07111f;
  --panel: rgba(12, 22, 40, 0.82);
  --panel-2: rgba(255, 255, 255, 0.06);
  --text: #f8fafc;
  --muted: #9fb0c8;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #60a5fa;
  --accent-2: #22d3ee;
  --success: #34d399;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.10), transparent 30%),
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.12), transparent 28%),
    linear-gradient(180deg, #07111f 0%, #091524 50%, #0b1320 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.bg-orb {
  position: fixed;
  inset: auto;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
  pointer-events: none;
}
.orb-1 {
  width: 260px;
  height: 260px;
  background: rgba(34, 211, 238, 0.20);
  top: 100px;
  left: -60px;
}
.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(96, 165, 250, 0.18);
  top: 180px;
  right: -60px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(7, 17, 31, 0.45);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}
.brand-badge {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #03111f;
  font-weight: 800;
  box-shadow: var(--shadow);
}
.brand strong { display: block; font-size: 1rem; }
.brand small { color: var(--muted); }
.nav-links {
  display: flex;
  gap: 22px;
  color: var(--muted);
}
.nav-links a:hover { color: var(--text); }

.hero {
  padding: 72px 0 36px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
}
.eyebrow,
.section-tag,
.card-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c7dbf8;
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.9rem;
}
.hero-copy h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1.02;
  margin: 16px 0;
  letter-spacing: -0.04em;
}
.hero-copy p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  max-width: 58ch;
}
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.hero-pills span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: #d7e5fb;
  background: rgba(255, 255, 255, 0.03);
}

.hero-card,
.info-card,
.faq-list details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.hero-card {
  padding: 24px;
}
.card-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 24px;
}
.card-head h2 {
  margin: 10px 0 0;
  font-size: 1.55rem;
}
.toggle-wrap {
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}
.mode-btn,
.rate-btn,
.primary-btn,
.ghost-btn {
  border: 0;
  cursor: pointer;
  transition: 0.25s ease;
}
.mode-btn,
.rate-btn {
  padding: 11px 14px;
  border-radius: 14px;
  background: transparent;
  color: var(--muted);
}
.mode-btn.active,
.rate-btn.active {
  color: #04111f;
  background: linear-gradient(135deg, #93c5fd, #67e8f9);
  font-weight: 700;
}
.form-grid {
  display: grid;
  gap: 18px;
}
.field {
  display: grid;
  gap: 10px;
}
.field > span {
  color: #dbe7f7;
  font-weight: 600;
}
.input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 58px;
  border-radius: 18px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.input-wrap:focus-within {
  border-color: rgba(96, 165, 250, 0.75);
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.12);
}
.currency {
  color: #dbe7f7;
  font-weight: 700;
}
input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
}
input::placeholder { color: #6f85a2; }
.rate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.hidden { display: none !important; }
.actions {
  display: flex;
  gap: 12px;
  margin: 22px 0 24px;
}
.primary-btn,
.ghost-btn {
  height: 52px;
  border-radius: 16px;
  padding: 0 18px;
  font-weight: 700;
}
.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #05111e;
  flex: 1;
}
.primary-btn:hover { transform: translateY(-1px); }
.ghost-btn {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--line);
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.result-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}
.result-card.highlight {
  background: linear-gradient(135deg, rgba(96,165,250,0.2), rgba(34,211,238,0.12));
}
.result-title {
  display: block;
  color: #c9d8eb;
  margin-bottom: 12px;
}
.result-card strong {
  display: block;
  font-size: 1.7rem;
  margin-bottom: 6px;
}
.result-card small { color: var(--muted); }

.info-section,
.faq-section {
  padding: 28px 0 44px;
}
.info-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
}
.info-card {
  padding: 28px;
}
.info-card.soft {
  background: rgba(255,255,255,0.05);
}
.info-card h3 {
  margin: 14px 0;
  font-size: 1.5rem;
}
.info-card p,
.info-card li,
.faq-list p {
  color: var(--muted);
  line-height: 1.8;
}
.info-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
}
.section-head {
  margin-bottom: 20px;
}
.section-head h2 {
  margin: 14px 0 0;
  font-size: 2rem;
}
.faq-list {
  display: grid;
  gap: 14px;
}
.faq-list details {
  padding: 18px 20px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}
.faq-list p { margin: 14px 0 4px; }

.site-footer {
  padding: 28px 0 50px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

@media (max-width: 980px) {
  .hero-grid,
  .info-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }
  .card-head,
  .nav,
  .footer-inner {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .hero { padding-top: 44px; }
  .hero-card,
  .info-card,
  .faq-list details { border-radius: 22px; }
  .rate-grid { grid-template-columns: repeat(2, 1fr); }
  .toggle-wrap { flex-direction: column; }
  .actions { flex-direction: column; }
  .hero-copy h1 { font-size: 2.4rem; }
}