:root {
  --clr-bg:           #0f0f1a;
  --clr-surface:      #16162a;
  --clr-card:         #1c1c35;
  --clr-border:       rgba(255,255,255,0.08);
  --clr-primary:      #6c63ff;
  --clr-primary-dark: #4a42d6;
  --clr-accent:       #ff6584;
  --clr-text:         #e4e4f0;
  --clr-muted:        #8888aa;
  --clr-success:      #43d9ad;
  --clr-error-bg:     rgba(255, 80, 80, 0.12);
  --clr-error-border: rgba(255, 80, 80, 0.35);
  --clr-error-text:   #ff8080;
  --radius-sm:        8px;
  --radius-md:        14px;
  --radius-lg:        22px;
  --shadow-card:      0 8px 40px rgba(0,0,0,0.5);
  --font-sans:        'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition:       0.22s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family:    var(--font-sans);
  background:     var(--clr-bg);
  color:          var(--clr-text);
  min-height:     100vh;
  overflow-x:     hidden;
  line-height:    1.6;
}

.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
  animation: floatBlob 12s ease-in-out infinite alternate;
}
.blob-1 { width: 500px; height: 500px; background: var(--clr-primary); top: -120px; left: -120px; animation-duration: 14s; }
.blob-2 { width: 400px; height: 400px; background: var(--clr-accent);  bottom: -80px; right: -80px; animation-duration: 18s; animation-delay: -6s; }
.blob-3 { width: 300px; height: 300px; background: #43d9ad;             top: 40%; left: 50%; transform: translate(-50%,-50%); animation-duration: 10s; animation-delay: -3s; }

@keyframes floatBlob {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.08); }
}

.page-wrapper {
  position:    relative;
  z-index:     1;
  min-height:  100vh;
  display:     flex;
  flex-direction: column;
  align-items: center;
  padding:     0 16px 40px;
}

.site-header {
  width:      100%;
  max-width:  860px;
  padding:    36px 0 20px;
  text-align: center;
}
.header-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.logo {
  display:     flex;
  align-items: center;
  gap:         10px;
  font-size:   clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.5px;
}
.logo-icon { font-size: 1.8rem; }
.logo-text { color: var(--clr-text); }
.accent    { color: var(--clr-primary); }

.tagline {
  font-size:   0.875rem;
  color:       var(--clr-muted);
  letter-spacing: 0.5px;
}

.main-content {
  width:     100%;
  max-width: 860px;
  display:   flex;
  flex-direction: column;
  gap:       28px;
}

.card {
  background:    var(--clr-card);
  border:        1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding:       32px 32px 28px;
  box-shadow:    var(--shadow-card);
  animation:     fadeInUp 0.5s ease both;
}

.card-header  { margin-bottom: 24px; text-align: center; }
.card-title   { font-size: clamp(1.2rem, 2.5vw, 1.5rem); font-weight: 700; margin-bottom: 6px; }
.card-subtitle { font-size: 0.875rem; color: var(--clr-muted); max-width: 560px; margin: 0 auto; }

.translator-grid {
  display:               grid;
  grid-template-columns: 1fr 48px 1fr;
  gap:                   12px;
  align-items:           start;
}

.pane {
  display:       flex;
  flex-direction: column;
  gap:           8px;
}

.pane-label {
  display:     flex;
  align-items: center;
  gap:         6px;
  font-size:   0.8rem;
  font-weight: 600;
  color:       var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.flag { font-size: 1rem; }

.text-area {
  width:         100%;
  min-height:    130px;
  background:    var(--clr-surface);
  border:        1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding:       14px 16px;
  color:         var(--clr-text);
  font-family:   var(--font-sans);
  font-size:     0.97rem;
  line-height:   1.6;
  resize:        vertical;
  outline:       none;
  transition:    border-color var(--transition), box-shadow var(--transition);
}
.text-area:focus,
.text-area:focus-within {
  border-color: var(--clr-primary);
  box-shadow:   0 0 0 3px rgba(108,99,255,0.18);
}

.output-area {
  cursor:     default;
  resize:     none;
  user-select: text;
  min-height: 130px;
}
.output-area.has-result { border-color: rgba(67,217,173,0.35); }

.placeholder-text { color: var(--clr-muted); font-style: italic; }

.char-counter {
  font-size: 0.75rem;
  color:     var(--clr-muted);
  text-align: right;
}

.btn-copy {
  display:       inline-flex;
  align-items:   center;
  gap:           5px;
  align-self:    flex-end;
  padding:       5px 12px;
  background:    transparent;
  border:        1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color:         var(--clr-muted);
  font-size:     0.8rem;
  cursor:        pointer;
  transition:    all var(--transition);
}
.btn-copy:not(:disabled):hover {
  background:   rgba(108,99,255,0.12);
  border-color: var(--clr-primary);
  color:        var(--clr-primary);
}
.btn-copy:disabled { opacity: 0.35; cursor: not-allowed; }

.divider {
  display:         flex;
  justify-content: center;
  align-items:     flex-start;
  padding-top:     42px;
}
.arrow-wrap {
  width:         40px;
  height:        40px;
  border-radius: 50%;
  background:    var(--clr-surface);
  border:        1px solid var(--clr-border);
  display:       flex;
  align-items:   center;
  justify-content: center;
}
.arrow-icon {
  width:  20px;
  height: 20px;
  color:  var(--clr-primary);
}

.action-row {
  display:         flex;
  justify-content: center;
  margin-top:      22px;
}

.btn-translate {
  display:       inline-flex;
  align-items:   center;
  gap:           10px;
  padding:       13px 44px;
  background:    linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  border:        none;
  border-radius: 50px;
  color:         #fff;
  font-size:     1rem;
  font-weight:   600;
  cursor:        pointer;
  letter-spacing: 0.3px;
  box-shadow:    0 4px 20px rgba(108,99,255,0.35);
  transition:    transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  position:      relative;
  overflow:      hidden;
}
.btn-translate:hover:not(:disabled) {
  transform:  translateY(-2px);
  box-shadow: 0 8px 28px rgba(108,99,255,0.5);
}
.btn-translate:active:not(:disabled) { transform: translateY(0); }
.btn-translate:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-spinner {
  display:      none;
  width:        18px;
  height:       18px;
  border:       2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation:    spin 0.7s linear infinite;
}
.btn-translate.loading .btn-text    { opacity: 0.7; }
.btn-translate.loading .btn-spinner { display: block; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error-box {
  display:       flex;
  align-items:   center;
  gap:           8px;
  margin-top:    16px;
  padding:       12px 16px;
  background:    var(--clr-error-bg);
  border:        1px solid var(--clr-error-border);
  border-radius: var(--radius-sm);
  color:         var(--clr-error-text);
  font-size:     0.9rem;
  animation:     fadeInUp 0.3s ease both;
}
.error-icon { font-size: 1rem; flex-shrink: 0; }

.examples-section {
  animation: fadeInUp 0.6s 0.1s ease both;
}
.examples-title {
  font-size:     0.8rem;
  font-weight:   600;
  color:         var(--clr-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
  text-align:    center;
}
.examples-grid {
  display:   flex;
  flex-wrap: wrap;
  gap:       10px;
  justify-content: center;
}
.example-chip {
  padding:       8px 16px;
  background:    var(--clr-card);
  border:        1px solid var(--clr-border);
  border-radius: 50px;
  color:         var(--clr-text);
  font-size:     0.85rem;
  cursor:        pointer;
  transition:    all var(--transition);
  white-space:   nowrap;
}
.example-chip:hover {
  background:   rgba(108,99,255,0.15);
  border-color: var(--clr-primary);
  color:        var(--clr-primary);
  transform:    translateY(-1px);
}

.site-footer {
  margin-top: 40px;
  font-size:  0.8rem;
  color:      var(--clr-muted);
  text-align: center;
}
.heart { color: var(--clr-accent); }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 700px) {
  .card { padding: 24px 18px 20px; }

  .translator-grid {
    grid-template-columns: 1fr;
    grid-template-rows:    auto auto auto;
  }

  .divider {
    padding-top: 0;
    justify-content: center;
    align-items: center;
  }
  .arrow-wrap { transform: rotate(90deg); }

  .btn-translate { width: 100%; justify-content: center; padding: 14px 0; }
}

@media (max-width: 420px) {
  .site-header  { padding: 24px 0 14px; }
  .logo         { font-size: 1.4rem; }
  .card         { padding: 18px 14px; border-radius: var(--radius-md); }
  .text-area    { font-size: 0.93rem; }
  .example-chip { font-size: 0.8rem; padding: 7px 12px; }
}