:root {
  color-scheme: dark;
  --bg: #070b16;
  --bg-elevated: rgba(13, 18, 36, 0.82);
  --bg-soft: rgba(17, 24, 44, 0.82);
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef2ff;
  --muted: #a8b2d1;
  --muted-2: #7d89aa;
  --accent: #7af3d7;
  --accent-2: #8fa8ff;
  --danger: #ff8aa3;
  --good: #79f1a4;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --font-head: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(122, 243, 215, 0.12), transparent 32%),
    radial-gradient(circle at right 20%, rgba(143, 168, 255, 0.14), transparent 30%),
    linear-gradient(180deg, #060914 0%, #0a1020 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background: transparent;
  overflow-x: hidden;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  position: relative;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.corner-settings {
  position: absolute;
  top: 32px;
  right: 0;
  z-index: 10;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-head);
  letter-spacing: -0.03em;
}

h1 {
  max-width: 13ch;
  font-size: clamp(2.6rem, 6vw, 5.6rem);
  line-height: 0.95;
}

.lede {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  gap: 12px;
}

.hero-stats article,
.panel {
  background: linear-gradient(180deg, rgba(19, 25, 48, 0.92), rgba(12, 17, 33, 0.88));
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-stats article {
  padding: 16px 18px;
}

.hero-stats span,
.summary-item span,
.result-label,
.field span,
.recent-head h3 {
  color: var(--muted-2);
}

.hero-stats strong {
  display: block;
  margin-top: 8px;
  font-size: 1.05rem;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.8fr);
  gap: 20px;
  align-items: start;
}

.panel {
  padding: 22px;
}

.panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.panel h2 {
  font-size: 1.45rem;
}

.ghost-button,
.text-button {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.ghost-button {
  padding: 11px 14px;
  border-radius: 999px;
}

.text-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
}

.ghost-button:hover,
.text-button:hover {
  transform: translateY(-1px);
}

.settings-button {
  min-width: 124px;
}

.controls {
  display: grid;
  gap: 14px;
}

.pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field input,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 15px 16px;
  outline: none;
  transition:
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.field input:focus,
.field select:focus {
  border-color: rgba(122, 243, 215, 0.55);
  background: rgba(255, 255, 255, 0.07);
}

.field input:hover,
.field select:hover {
  transform: translateY(-1px);
}

.field input[type="number"]::-webkit-outer-spin-button,
.field input[type="number"]::-webkit-inner-spin-button {
  appearance: none;
  margin: 0;
}

.result-card {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding: 20px;
  border-radius: 24px;
  background:
    radial-gradient(circle at top left, rgba(122, 243, 215, 0.14), transparent 40%),
    radial-gradient(circle at bottom right, rgba(143, 168, 255, 0.16), transparent 46%),
    rgba(8, 12, 25, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.result-card strong {
  display: block;
  margin-top: 6px;
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  line-height: 1;
}

.result-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.summary-item {
  padding: 14px 15px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.summary-item strong {
  display: block;
  margin-top: 8px;
  font-size: 1.02rem;
}

.status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(122, 243, 215, 0.14);
  background: rgba(122, 243, 215, 0.06);
  color: #c9fff0;
  font-size: 0.95rem;
}

.insights {
  display: grid;
  gap: 18px;
}

.quick-rates {
  display: grid;
  gap: 12px;
}

.quick-rate {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.quick-rate .code {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.quick-rate .name {
  color: var(--muted-2);
  font-size: 0.9rem;
  margin-top: 3px;
}

.quick-rate .value {
  text-align: right;
  font-family: var(--font-head);
  font-size: 1.15rem;
}

.recent {
  padding-top: 2px;
}

.recent-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

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

.recent-item {
  padding: 14px 15px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.recent-item strong {
  display: block;
  margin-bottom: 4px;
}

.recent-item span {
  color: var(--muted-2);
  font-size: 0.92rem;
}

.bg-orb {
  position: fixed;
  inset: auto;
  pointer-events: none;
  filter: blur(12px);
  opacity: 0.8;
  z-index: -1;
}

.orb-a {
  top: -120px;
  left: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 243, 215, 0.2), transparent 68%);
}

.orb-b {
  right: -140px;
  top: 180px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(143, 168, 255, 0.18), transparent 70%);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.06;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.6) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent);
}

.is-loading {
  opacity: 0.72;
  pointer-events: none;
}

.settings-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 18, 0.62);
  backdrop-filter: blur(8px);
  z-index: 25;
}

.settings-panel {
  position: fixed;
  top: 20px;
  right: 20px;
  width: min(380px, calc(100vw - 40px));
  padding: 22px;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(19, 25, 48, 0.98), rgba(12, 17, 33, 0.98));
  box-shadow: var(--shadow);
  z-index: 30;
  transform: translateY(-10px) scale(0.98);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.settings-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.settings-stats {
  margin-top: 4px;
}

.error {
  border-color: rgba(255, 138, 163, 0.28);
  background: rgba(255, 138, 163, 0.08);
  color: #ffd5dd;
}

@media (max-width: 960px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .shell {
    width: min(100% - 18px, 1180px);
    padding: 16px 0 28px;
  }

  .panel {
    padding: 18px;
    border-radius: 22px;
  }

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

  .panel-head {
    align-items: center;
  }

  h1 {
    max-width: 11ch;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .corner-settings {
    top: 14px;
    right: 0;
  }

  .settings-panel {
    top: auto;
    right: 10px;
    left: 10px;
    bottom: 10px;
    width: auto;
  }
}