:root {
  color-scheme: light dark;
  --bg: #070810;
  --bg-muted: rgba(15, 18, 34, 0.78);
  --bg-card: rgba(18, 22, 38, 0.75);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --accent: #6dd5ff;
  --accent-strong: #3a7bd5;
  --text-primary: #f9fafc;
  --text-secondary: rgba(241, 244, 250, 0.72);
  --text-muted: rgba(241, 244, 250, 0.5);
  --shadow: 0 50px 100px -20px rgba(12, 20, 50, 0.5);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text-secondary);
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.background-glow {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(110, 168, 255, 0.18), transparent 60%),
    radial-gradient(circle at 80% 10%, rgba(255, 165, 234, 0.16), transparent 58%),
    linear-gradient(160deg, rgba(9, 10, 27, 0.96), rgba(9, 13, 35, 0.96));
  filter: blur(0px);
  z-index: -2;
}

.shell {
  width: min(100%, 960px);
  padding: clamp(1.5rem, 3vw + 1rem, 4rem) clamp(1rem, 4vw, 4rem) 4rem;
  display: grid;
  gap: clamp(1.5rem, 2vw, 2.5rem);
}

.hero {
  display: grid;
  gap: 1rem;
  text-align: left;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.language-controls {
  position: relative;
  display: flex;
  align-items: center;
}

.language-toggle {
  --toggle-size: clamp(42px, 9vw, 48px);
  width: var(--toggle-size);
  height: var(--toggle-size);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(10, 14, 32, 0.6);
  display: grid;
  place-items: center;
  gap: 4px;
  padding: 10px;
  cursor: pointer;
  transition: border 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.language-toggle:hover,
.language-toggle:focus-visible {
  border-color: rgba(109, 213, 255, 0.6);
  box-shadow: 0 18px 36px -20px rgba(109, 213, 255, 0.45);
  outline: none;
}

.burger-line {
  width: 70%;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  transition: transform 0.25s ease, opacity 0.25s ease;
  position: relative;
}

.burger-line::after {
  content: '';
  position: absolute;
  inset: -6px -8px;
  border-radius: 999px;
  border: 1px solid rgba(109, 213, 255, 0.18);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.language-toggle:hover .burger-line::after,
.language-toggle:focus-visible .burger-line::after {
  opacity: 1;
}

.language-toggle::after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 12px;
  background: radial-gradient(circle at 50% 40%, rgba(109, 213, 255, 0.35), transparent 70%);
  opacity: 0.4;
  transition: opacity 0.25s ease;
}

.language-toggle:hover::after,
.language-toggle:focus-visible::after {
  opacity: 0.6;
}

.language-label {
  display: none;
}

.language-controls[data-open='true'] .burger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.language-controls[data-open='true'] .burger-line:nth-child(2) {
  opacity: 0;
}

.language-controls[data-open='true'] .burger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.language-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  display: grid;
  gap: 0.4rem;
  padding: 0.85rem;
  min-width: 160px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 11, 24, 0.92);
  box-shadow: 0 24px 48px -24px rgba(11, 20, 48, 0.45);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.language-menu[hidden] {
  display: none;
}

.language-option {
  border: none;
  background: transparent;
  color: rgba(240, 244, 255, 0.9);
  font: inherit;
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.language-option:hover,
.language-option:focus-visible {
  background: rgba(109, 213, 255, 0.15);
  color: var(--text-primary);
  outline: none;
}

.language-option.is-active {
  background: rgba(109, 213, 255, 0.22);
  color: var(--text-primary);
}

@media (max-width: 414px) {
  .hero-top {
    justify-content: center;
    gap: 1.25rem;
  }

  .language-controls {
    order: 2;
    width: 100%;
    justify-content: center;
  }

  .language-toggle {
    --toggle-size: clamp(46px, 16vw, 56px);
    border-radius: 22px;
    padding: 8px;
  }

  .language-toggle::before {
    display: none;
  }

  .language-toggle::after {
    display: none;
  }

  .language-toggle .burger-line {
    width: 60%;
    background: rgba(255, 255, 255, 0.82);
  }

  .language-toggle .burger-line:nth-child(2)::after {
    display: none;
  }

  .language-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: calc(100% + 0.6rem);
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
    white-space: nowrap;
  }

  .language-menu {
    top: calc(100% + 0.55rem);
    right: 50%;
    transform: translateX(50%);
  }

  .language-menu::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 18px;
    border-radius: 6px;
    background: inherit;
    border: inherit;
    filter: blur(0.5px);
    z-index: -1;
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  color: var(--accent);
}

.brand-logo {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: clamp(54px, 14vw, 72px);
  aspect-ratio: 1;
  border-radius: 28px;
  background:
    radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0) 55%),
    linear-gradient(135deg, rgba(109, 213, 255, 0.9), rgba(98, 126, 255, 0.9));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.28),
    0 18px 40px -18px rgba(80, 142, 255, 0.5);
  overflow: hidden;
}

.brand-record {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.85), rgba(255, 120, 120, 0) 55%),
    radial-gradient(circle at 50% 50%, rgba(255, 46, 67, 0.85), rgba(255, 46, 67, 0.2) 70%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.32),
    0 0 0 10px rgba(255, 67, 108, 0.18);
  overflow: hidden;
}

.brand-record::before {
  content: '';
  position: absolute;
  inset: -12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 78, 107, 0.35), transparent 70%);
  filter: blur(6px);
  animation: pulseGlow 3s ease-in-out infinite;
}

.brand-record::after {
  content: '';
  position: absolute;
  inset: 24%;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.35);
}

.record-core {
  position: relative;
  width: 36%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, #ff355d, #e4003a 70%, rgba(255, 0, 58, 0.85) 100%);
  box-shadow:
    0 0 15px rgba(255, 0, 58, 0.6),
    0 0 30px rgba(255, 0, 58, 0.32);
  animation: heartbeat 2.8s ease-in-out infinite;
}

.brand-glyph {
  display: none;
}

.brand-copy {
  display: grid;
  gap: 0.3rem;
}

.brand-name {
  font-size: clamp(1.15rem, 2.9vw, 1.55rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.brand-tagline {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  color: rgba(255, 255, 255, 0.58);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 3.25rem);
  color: var(--text-primary);
  line-height: 1.1;
}

.hero p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 24px;
  padding: clamp(1.5rem, 2.8vw, 2.6rem);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.form {
  display: grid;
  gap: 1.75rem;
}

.form-row {
  display: grid;
  gap: 0.6rem;
}

.input-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.select-wrap {
  position: relative;
}

select {
  appearance: none;
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(15, 19, 36, 0.8);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border 0.2s ease, transform 0.2s ease;
}

select:focus-visible {
  outline: 2px solid rgba(109, 213, 255, 0.65);
  outline-offset: 2px;
}

.select-caret {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  width: 0.75rem;
  height: 0.75rem;
  border-left: 2px solid rgba(255, 255, 255, 0.6);
  border-bottom: 2px solid rgba(255, 255, 255, 0.6);
  transform-origin: center;
  rotate: -45deg;
}

.dropzone {
  border-radius: 20px;
  border: 1.5px dashed rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  text-align: center;
  padding: clamp(2rem, 6vw, 3.25rem) 1.2rem;
  background: rgba(13, 16, 31, 0.75);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border 0.25s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.dropzone:hover,
.dropzone:focus-within {
  border-color: rgba(109, 213, 255, 0.7);
  transform: translateY(-2px);
  box-shadow: 0 30px 60px -25px rgba(109, 213, 255, 0.35);
}

.dropzone.is-drag-over {
  border-color: rgba(125, 231, 255, 0.9);
  background: rgba(16, 24, 36, 0.9);
}

.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.dropzone-icon {
  font-size: clamp(2.4rem, 8vw, 3.5rem);
  margin-bottom: 1rem;
}

.dropzone-title {
  margin: 0;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

.dropzone-subtitle {
  margin: 0.4rem 0 0;
  max-width: 24ch;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.dropzone-feedback {
  margin: 1rem 0 0;
  color: var(--accent);
  font-weight: 500;
  min-height: 1.2rem;
}

.actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

button {
  font: inherit;
  border: none;
  border-radius: 16px;
  padding: 0.95rem 1.4rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease;
}

button:focus-visible {
  outline: 2px solid rgba(109, 213, 255, 0.7);
  outline-offset: 3px;
}

.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #030712;
  font-weight: 600;
  min-width: 14rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  position: relative;
}

.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 25px 45px -18px rgba(61, 130, 255, 0.52);
}

.primary:disabled {
  cursor: wait;
  opacity: 0.8;
  transform: none;
}

.button-spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2.5px solid rgba(3, 7, 18, 0.18);
  border-top-color: rgba(3, 7, 18, 0.7);
  border-radius: 50%;
  display: none;
  animation: spin 1s linear infinite;
}

.primary[data-state='loading'] .button-spinner {
  display: inline-flex;
}

.primary[data-state='loading'] .button-label {
  opacity: 0.8;
}

.ghost {
  background: rgba(18, 22, 38, 0.9);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ghost:hover {
  background: rgba(32, 39, 58, 0.95);
}

.status {
  min-height: 1.2rem;
  margin: 0;
  font-size: 0.95rem;
  color: rgba(235, 239, 255, 0.72);
}

.status[data-tone='success'] {
  color: rgba(118, 255, 203, 0.9);
}

.status[data-tone='error'] {
  color: rgba(255, 150, 150, 0.9);
}

.status[data-tone='warning'] {
  color: rgba(255, 210, 130, 0.9);
}

.status[data-tone='pending'] {
  color: rgba(152, 201, 255, 0.88);
}

.result-card {
  display: grid;
  gap: 1.5rem;
}

.result-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.result-pill {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(109, 213, 255, 0.1);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.9rem;
  text-transform: uppercase;
}

.result-content {
  background: rgba(10, 13, 24, 0.95);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: clamp(1.25rem, 2vw, 1.75rem);
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.7;
  text-align: justify;
}

.footer {
  display: grid;
  gap: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.result-meta {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.58);
  text-align: right;
}

code {
  background: rgba(13, 16, 31, 0.65);
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  color: var(--accent);
  font-size: 0.9rem;
}

details {
  background: rgba(10, 13, 24, 0.6);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

ul {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

@media (min-width: 720px) {
  .hero {
    text-align: left;
    gap: 1.3rem;
  }

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

@supports (text-wrap: balance) {
  .hero h1 {
    text-wrap: balance;
  }
}

@keyframes spin {
  from {
    transform: rotate(0);
  }
  to {
    transform: rotate(1turn);
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.75;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@keyframes heartbeat {
  0%,
  100% {
    transform: scale(1);
  }
  45% {
    transform: scale(1.08);
  }
  55% {
    transform: scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}