* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --canvas: #050816;
  --canvas-glow: #0d1528;
  --surface: rgba(14, 20, 33, 0.88);
  --surface-strong: rgba(10, 15, 26, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.06);
  --text: #f4f7fb;
  --muted: #9fadc7;
  --accent: #93ff43;
  --accent-soft: rgba(147, 255, 67, 0.18);
  --accent-strong: #68e11b;
  --line: rgba(180, 193, 215, 0.2);
  --line-strong: rgba(180, 193, 215, 0.34);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --motion-fast: 160ms;
  --motion-base: 280ms;
  --font-display: "Oxanium", "Space Grotesk", sans-serif;
  --font-body: "Space Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top, rgba(104, 225, 27, 0.1), transparent 34%),
    linear-gradient(180deg, #081020 0%, #050816 50%, #02040b 100%);
  color: var(--text);
  font-family: var(--font-body);
}

body {
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.page-shell {
  width: min(1280px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.topbar,
.main-grid,
.site-footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.eyebrow::before,
.section-kicker::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
}

.site-name,
.topbar-chip {
  white-space: nowrap;
}

.site-name {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.topbar-chip,
.status-pill,
.visual-overlay span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.82fr);
  gap: 22px;
}

.hero-card,
.visual-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--surface);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 34px;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(147, 255, 67, 0.12);
  border-radius: 28px;
  pointer-events: none;
}

.hero-copy h1 {
  margin: 14px 0 14px;
  max-width: 12ch;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  max-width: 60ch;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.result-panel {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(7, 11, 20, 0.92), rgba(10, 15, 26, 0.88));
  backdrop-filter: blur(16px);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.panel-header h2 {
  margin: 10px 0 0;
  font-size: 1.6rem;
  font-family: var(--font-display);
}

.digit-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0 20px;
}

.digit-card {
  position: relative;
  overflow: hidden;
  min-height: 148px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.02);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.digit-card::before {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.55;
}

.digit-card span {
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  text-shadow: 0 0 26px rgba(147, 255, 67, 0.12);
  transform: translateY(0);
  transition:
    transform var(--motion-base) ease,
    opacity var(--motion-base) ease;
}

.digit-board.is-loading .digit-card span {
  animation: pulse-digit 0.9s ease-in-out infinite;
  opacity: 0.6;
}

.digit-board.is-fresh .digit-card span {
  animation: drop-in 0.42s ease;
}

.action-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.action-primary,
.action-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 20px;
  border-radius: 16px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform var(--motion-fast) ease,
    border-color var(--motion-fast) ease,
    background var(--motion-fast) ease,
    opacity var(--motion-fast) ease;
}

.action-primary:hover,
.action-secondary:hover:not(:disabled) {
  transform: translateY(-1px);
}

.action-primary {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #061106;
  font-weight: 700;
}

.action-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.action-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.action-primary svg,
.action-secondary svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

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

.meta-item {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
}

.meta-item dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta-item dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
}

.toast,
.error-text {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
}

.toast {
  display: inline-flex;
  background: rgba(147, 255, 67, 0.12);
  color: #cbffae;
}

.error-text {
  color: #ffb6bf;
  background: rgba(255, 89, 112, 0.1);
}

.signal-track {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 220px;
  height: 220px;
  pointer-events: none;
}

.signal-track::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 28px;
  left: 28px;
  border-right: 1px solid rgba(147, 255, 67, 0.2);
  border-bottom: 1px solid rgba(147, 255, 67, 0.2);
  border-bottom-right-radius: 28px;
}

.signal-track span {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(147, 255, 67, 0.45);
}

.signal-track span:nth-child(1) {
  top: 0;
  right: 0;
}

.signal-track span:nth-child(2) {
  top: 72px;
  right: 0;
}

.signal-track span:nth-child(3) {
  bottom: 28px;
  right: 56px;
}

.visual-card {
  padding: 18px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.visual-frame {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--surface-strong);
}

.hero-visual {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 0.95;
}

.visual-overlay {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.aside-copy {
  padding: 2px 6px 6px;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 22px;
  padding: 0 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
  white-space: nowrap;
}

@keyframes pulse-digit {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

@keyframes drop-in {
  0% {
    transform: translateY(16px) scale(0.94);
    opacity: 0.3;
  }

  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@media (max-width: 1023px) {
  .page-shell {
    width: min(100vw - 24px, 980px);
  }

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

  .visual-card {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 0.78fr);
    align-items: stretch;
  }

  .hero-visual {
    aspect-ratio: 1.6;
  }

  .site-footer {
    flex-wrap: wrap;
  }
}

@media (max-width: 767px) {
  .page-shell {
    width: calc(100vw - 20px);
    padding-top: 18px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .brand-lockup {
    justify-content: center;
    text-align: center;
  }

  .topbar-chip {
    justify-self: center;
    align-self: center;
  }

  .hero-card {
    padding: 20px;
  }

  .hero-card::after {
    inset: 12px;
  }

  .signal-track {
    width: 140px;
    height: 140px;
    top: 16px;
    right: 16px;
  }

  .hero-copy h1 {
    max-width: none;
    font-size: clamp(2.3rem, 13vw, 3.5rem);
  }

  .hero-subtitle {
    font-size: 0.97rem;
  }

  .result-panel {
    padding: 18px;
  }

  .panel-header {
    flex-direction: column;
  }

  .digit-board {
    gap: 10px;
  }

  .digit-card {
    min-height: 112px;
  }

  .action-row {
    flex-direction: column;
  }

  .action-primary,
  .action-secondary {
    width: 100%;
  }

  .meta-grid,
  .visual-card {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    aspect-ratio: 1.18;
  }

  .site-footer {
    font-size: 0.84rem;
  }

  .site-footer p {
    white-space: normal;
  }
}