:root {
  color-scheme: dark;
  --bg-primary: #05080f;
  --bg-secondary: #101828;
  --bg-panel: rgba(13, 17, 23, 0.75);
  --bg-panel-alt: rgba(17, 26, 38, 0.6);
  --text-primary: #f5f9ff;
  --text-secondary: #a6b7d8;
  --text-muted: #7d8aa8;
  --accent: #00e0ff;
  --accent-strong: #39ff14;
  --error: #ff6b6b;
  --border-soft: rgba(148, 163, 184, 0.2);
  --border-strong: rgba(0, 224, 255, 0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-glow: 0 0 45px rgba(0, 224, 255, 0.18);
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background: radial-gradient(120% 120% at 15% 10%, rgba(0, 224, 255, 0.08), transparent),
    radial-gradient(90% 90% at 85% 15%, rgba(57, 255, 20, 0.08), transparent),
    linear-gradient(160deg, #020409, #0a1422 55%, #020409 100%);
  color: var(--text-primary);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 160ms ease;
}

a:hover {
  color: var(--accent-strong);
}

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

.app-container {
  margin: 0 auto;
  max-width: 1120px;
  display: flex;
  flex-direction: column;
  padding: 40px 24px 56px;
  gap: 64px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: nowrap;
}

.branding {
  display: inline-flex;
  gap: 4px;
  align-items: baseline;
  font-size: clamp(1.8rem, 2.4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.015em;
}

.branding .muted {
  color: var(--text-muted);
  font-weight: 300;
}

.branding .accent {
  color: var(--accent);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.68rem;
}

.pill {
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 16px;
  background: rgba(0, 224, 255, 0.08);
  color: var(--accent);
  backdrop-filter: blur(6px);
}


.hero {
  position: relative;
  padding: 32px 0 48px;
  display: flex;
}

.hero-content {
  display: grid;
  gap: 24px;
  max-width: 720px;
}

.hero-title {
  font-size: clamp(2.6rem, 4.5vw, 4rem);
  line-height: 1.05;
  margin: 0;
}

.hero-subtitle {
  max-width: 640px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0;
}

.hero-highlights {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.hero-highlights li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 224, 255, 0.18);
  background: rgba(9, 18, 30, 0.6);
  backdrop-filter: blur(6px);
}

.hero-highlights h2,
.hero-highlight-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0;
}

.hero-highlights p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.hero-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.hero-cta {
  min-width: 220px;
}

.hero-secondary {
  min-width: 200px;
}

.hero-arrow {
  width: 14px;
  color: rgba(0, 224, 255, 0.7);
  margin-top: 12px;
  animation: arrow-float 2.2s ease-in-out infinite;
}

@keyframes arrow-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}


.generator-section {
  margin-top: 40px;
  display: grid;
  gap: 24px;
}

.section-heading {
  max-width: 720px;
  display: grid;
  gap: 10px;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--text-primary);
}

.section-heading p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--text-secondary);
}

.panel {
  background: var(--bg-panel);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-glow);
  padding: 28px;
  display: grid;
  gap: 20px;
}

.workbench-panels {
  display: grid;
  gap: 24px;
}

.panel-body {
  display: grid;
  gap: 18px;
}

@media (min-width: 960px) {
  .workbench-panels {
    gap: 28px;
  }
}

.panel.alt {
  background: var(--bg-panel-alt);
  box-shadow: none;
}

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

.panel-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0;
}

.reset-link {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.26em;
  transition: color 160ms ease;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
}

.reset-link:hover,
.reset-link:focus-visible {
  color: var(--accent);
  outline: none;
}

.button {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  padding: 12px 18px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease,
    color 160ms ease;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.button-primary {
  background: linear-gradient(120deg, var(--accent), rgba(0, 224, 255, 0.65));
  color: #00111b;
  border: 1px solid rgba(0, 224, 255, 0.8);
  box-shadow: 0 16px 28px rgba(0, 224, 255, 0.18);
}

.button-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 20px 38px rgba(0, 224, 255, 0.25);
}

.button-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(0, 224, 255, 0.45);
}

.button-outline:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(0, 224, 255, 0.85);
}

.button-subtle {
  background: rgba(26, 35, 49, 0.9);
  color: var(--accent);
  border: 1px solid rgba(0, 224, 255, 0.25);
}

.button-subtle:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(0, 224, 255, 0.55);
}

.label {
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.label span {
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.textarea,
.input {
  width: 100%;
  background: rgba(5, 12, 19, 0.85);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.18);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 12px 14px;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.textarea {
  resize: vertical;
  min-height: 96px;
}

.input {
  height: 48px;
  min-height: 48px;
}

.textarea:focus-visible,
.input:focus-visible {
  outline: none;
  border-color: rgba(0, 224, 255, 0.8);
  box-shadow: 0 0 0 2px rgba(0, 224, 255, 0.2);
}

.copy-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.copy-feedback {
  font-size: 0.7rem;
  color: var(--error);
}

.notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}

.status {
  text-align: center;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.42em;
  color: var(--text-muted);
}

.error-banner {
  border-radius: 16px;
  border: 1px solid rgba(255, 107, 107, 0.45);
  background: rgba(143, 16, 16, 0.2);
  padding: 16px 18px;
  font-size: 0.9rem;
  color: #ffd7d7;
}

.features {
  margin-top: 64px;
  display: grid;
  gap: 28px;
}

.feature-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.feature-card {
  background: rgba(15, 21, 32, 0.7);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 28px;
  backdrop-filter: blur(4px);
  display: grid;
  gap: 12px;
}

.feature-card h3 {
  font-size: 1.15rem;
  color: var(--accent);
  margin: 0;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
}

.footer {
  margin-top: auto;
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  padding-top: 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-left: auto;
}

.language-toggle .options {
  display: inline-flex;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(9, 14, 23, 0.85);
}

.language-toggle button {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 8px 18px;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.language-toggle button.active {
  background: var(--accent);
  color: #00111b;
}

.language-toggle button:not(.active):hover {
  color: var(--accent);
}

.footer a {
  font-size: 0.75rem;
}

@media (max-width: 820px) {
  .app-container {
    padding: 32px 20px 48px;
    gap: 52px;
  }

  .hero {
    padding: 24px 0 36px;
  }

  .hero-content {
    max-width: none;
  }

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

  .hero-cta,
  .hero-secondary {
    min-width: 0;
    width: 100%;
  }

  .hero-arrow {
    display: none;
  }

  .panel {
    padding: 22px;
  }
}

@media (max-width: 540px) {
  .app-container {
    padding: 28px 16px 40px;
    gap: 44px;
  }

  .branding {
    font-size: 1.82rem;
  }

  .pill-row {
    letter-spacing: 0.28em;
    font-size: 0.62rem;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-subtitle {
    font-size: 0.96rem;
  }

  .hero-highlights h3 {
    font-size: 0.88rem;
    letter-spacing: 0.16em;
  }

  .hero-highlights p {
    font-size: 0.84rem;
  }

  .section-heading h2 {
    font-size: 1.4rem;
  }

  .section-heading p {
    font-size: 0.9rem;
  }

  .panel-title {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

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

  .copy-row .button {
    width: 100%;
  }

  .language-toggle {
    font-size: 0.72rem;
    gap: 8px;
  }

  .language-toggle .options {
    border-width: 1px;
  }

  .language-toggle button {
    padding: 6px 12px;
    letter-spacing: 0.12em;
  }

  .features {
    gap: 24px;
  }

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

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}