/* =====================================================
   CeT-Trans — Translator vNext Interface
   ===================================================== */

@keyframes tr-bg-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes tr-pill-in {
  from { opacity: 0; transform: translateY(8px) scale(.92); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.translator-wrapper {
  position: relative;
}

.translator-wrapper::before {
  content: '';
  position: fixed;
  inset: 64px 0 0;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at -5% -10%, rgba(30,58,95,.13), transparent 55%),
    radial-gradient(700px 500px at 105% 5%,  rgba(0,122,94,.13), transparent 60%),
    radial-gradient(600px 400px at 50% 100%, rgba(252,209,22,.06), transparent 65%),
    linear-gradient(180deg, #f0f5fd 0%, #f6fbff 50%, #f5faf8 100%);
  z-index: -1;
}

/* ── Premium Hero Banner ─────────────────────────── */
.translator-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  border-radius: 1.4rem;
  background: linear-gradient(
    120deg,
    #0d1f35 0%,
    #1e3a5f 30%,
    #005c47 65%,
    #1a4a2e 100%
  );
  background-size: 280% 280%;
  animation: tr-bg-shift 12s ease infinite;
  padding: 1.35rem 1.6rem;
  box-shadow:
    0 20px 50px rgba(13,31,53,.32),
    0 2px  10px rgba(0,0,0,.15),
    inset 0 1px 0 rgba(255,255,255,.07);
  position: relative;
  overflow: hidden;
}

.translator-hero::before {
  content: '';
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(252,209,22,.08), transparent 60%);
  top: -180px; right: -80px;
  pointer-events: none;
}

.translator-hero::after {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,122,94,.12), transparent 65%);
  bottom: -120px; left: 10%;
  pointer-events: none;
}

.hero-left {
  max-width: 760px;
  position: relative;
  z-index: 1;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  border-radius: 999px;
  padding: .32rem .85rem;
  border: 1px solid rgba(252,209,22,.35);
  color: #fcd116;
  background: rgba(252,209,22,.08);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: .55rem;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.hero-left .page-title {
  color: #ffffff !important;
  font-size: 1.5rem;
  text-shadow: 0 2px 12px rgba(0,0,0,.25);
}

.hero-left p {
  color: rgba(255,255,255,.65) !important;
}

.hero-right {
  display: flex;
  gap: .65rem;
  position: relative;
  z-index: 1;
}

/* ── Metric Pills ─────────────────────────────────── */
.metric-pill {
  min-width: 96px;
  border-radius: 1rem;
  padding: .65rem .75rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  text-align: center;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  animation: tr-pill-in .4s var(--ease) both;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.metric-pill:nth-child(1) { animation-delay: .08s; border-top: 2px solid var(--cm-green); }
.metric-pill:nth-child(2) { animation-delay: .16s; border-top: 2px solid var(--cm-yellow); }
.metric-pill:nth-child(3) { animation-delay: .24s; border-top: 2px solid var(--cm-red); }

.metric-pill:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
  background: rgba(255,255,255,.13);
}

.metric-pill strong {
  color: #fff;
  font-size: 1.15rem;
  font-family: var(--font-head);
  text-shadow: 0 1px 4px rgba(0,0,0,.2);
}

.metric-pill span {
  color: rgba(255,255,255,.55);
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.translator-grid {
  display: grid;
  grid-template-columns: 1.07fr .93fr .74fr;
  gap: 1rem;
  align-items: start;
}

.page-title {
  font-family: var(--font-head);
  letter-spacing: -.02em;
  color: var(--text);
}

.studio-panel {
  border-radius: 1.2rem;
  border: 1px solid rgba(30,58,95,.1);
  background: rgba(255,255,255,.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow:
    0 20px 50px rgba(13,31,53,.1),
    0 2px  8px  rgba(13,31,53,.05),
    inset 0 1px 0 rgba(255,255,255,.9);
  display: flex;
  flex-direction: column;
  min-height: 680px;
  overflow: hidden;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}

.studio-panel:hover {
  box-shadow:
    0 28px 60px rgba(13,31,53,.14),
    0 4px  14px rgba(13,31,53,.07),
    inset 0 1px 0 rgba(255,255,255,.9);
  transform: translateY(-2px);
}

/* Input panel accent */
.studio-panel:nth-child(1) { border-top: 3px solid var(--primary); }
/* Output panel accent */
.studio-panel:nth-child(2) { border-top: 3px solid var(--cm-green); }
/* History panel accent */
.studio-panel:nth-child(3) { border-top: 3px solid var(--cm-yellow); }

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .6rem;
  padding: 1rem 1.1rem .85rem;
  border-bottom: 1px solid rgba(30,58,95,.07);
  background: linear-gradient(180deg, #fff 0%, #fafcff 100%);
}

.panel-kicker {
  color: var(--muted);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 700;
}

.panel-title {
  font-family: var(--font-head);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.01em;
}

.language-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: .65rem;
  padding: .85rem 1rem 0;
}

.lang-col {
  min-width: 0;
}

.translator-wrapper .form-select {
  border-radius: .82rem;
  font-weight: 500;
  border: 1.5px solid #dce6f6;
  transition: all .2s var(--ease);
}

.translator-wrapper .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,58,95,.09);
}

#swapLangs {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px !important;
  border: 1.5px solid #d6e2f5;
  background: #fff;
  color: var(--primary);
  transition: all .25s var(--ease);
}

#swapLangs:hover {
  background: var(--primary);
  color: #fff;
  transform: rotate(180deg);
}

.prompt-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: .48rem;
  padding: .95rem 1rem 0;
}

.prompt-chip {
  border: 1.5px solid rgba(30,58,95,.12);
  background: linear-gradient(135deg, #ffffff 0%, #f4f8ff 100%);
  color: #2f486e;
  border-radius: 999px;
  padding: .35rem .82rem;
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .01em;
  transition: all .2s var(--ease);
  box-shadow: 0 1px 4px rgba(30,58,95,.06);
}

.prompt-chip:hover {
  border-color: var(--primary);
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-lt));
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(30,58,95,.25);
}

.editor-wrap,
.result-wrap {
  margin: .85rem 1rem 0;
  border-radius: .95rem;
  border: 1px solid #dce6f6;
  background: linear-gradient(180deg, #fff 0%, #fcfdff 100%);
  display: flex;
  flex-direction: column;
  min-height: 480px;
}

.translator-area {
  border: 0 !important;
  box-shadow: none !important;
  resize: none;
  padding: .82rem .9rem;
  font-size: 1rem;
  line-height: 1.65;
  background: transparent;
  min-height: 410px;
}

.translator-result {
  padding: .92rem .95rem;
  font-size: 1rem;
  line-height: 1.68;
  color: var(--text);
  min-height: 410px;
  white-space: pre-wrap;
}

.translator-area:focus {
  outline: none;
}

.editor-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #e6edf8;
  padding: .52rem .75rem;
  background: #fafcff;
}

.translator-actions {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .95rem 1rem 1rem;
}

#translateBtn {
  position: relative;
  overflow: hidden;
  border-radius: .9rem;
  min-width: 210px;
  font-weight: 800;
  letter-spacing: .02em;
  background: linear-gradient(135deg, var(--primary) 0%, #005c47 100%);
  border: none;
  box-shadow: 0 14px 32px rgba(30,58,95,.3), 0 2px 8px rgba(0,0,0,.15);
  transition: all .25s var(--ease);
}

#translateBtn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(30,58,95,.38), 0 4px 12px rgba(0,0,0,.18);
  background: linear-gradient(135deg, #264d82 0%, #007a5e 100%);
}

#translateBtn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,.14);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width .4s, height .4s;
}

#translateBtn:active::after {
  width: 220px;
  height: 220px;
}

#translatingSpinner .spinner-border {
  width: 2rem;
  height: 2rem;
}

#copyFeedback {
  animation: fadeUp .3s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-tools {
  display: flex;
  align-items: center;
  gap: .65rem;
}

.result-tools .btn,
.result-tools button {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid #dce6f6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.result-tools .btn:hover,
.result-tools button:hover {
  border-color: #a7bde2;
  color: var(--primary) !important;
}

.history-body {
  max-height: 605px;
  overflow-y: auto;
}

.history-item {
  border-left: 3px solid transparent;
  transition: all .2s ease;
  cursor: pointer;
  border-radius: 0 .5rem .5rem 0;
}

.history-item:hover {
  background: linear-gradient(90deg, rgba(30,58,95,.04), rgba(30,58,95,.01));
  border-left-color: var(--primary);
}

.badge-lang {
  background: linear-gradient(135deg, rgba(30,58,95,.08), rgba(30,58,95,.04));
  color: var(--primary);
  border: 1px solid rgba(30,58,95,.15);
  font-weight: 700;
  font-size: .7rem;
  letter-spacing: .04em;
}

.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 1200px) {
  .translator-grid {
    grid-template-columns: 1fr 1fr;
  }

  .history-panel {
    grid-column: 1 / -1;
    min-height: 360px;
  }
}

@media (max-width: 992px) {
  .translator-grid {
    grid-template-columns: 1fr;
  }

  .history-body {
    max-height: 330px;
  }

  .studio-panel {
    min-height: 0;
  }

  .result-wrap,
  .editor-wrap {
    min-height: 340px;
  }

  .translator-area,
  .translator-result {
    min-height: 280px;
  }
}

@media (max-width: 768px) {
  .translator-wrapper {
    padding-top: .35rem !important;
  }

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

  .hero-right {
    width: 100%;
  }

  .metric-pill {
    flex: 1;
    min-width: 0;
  }

  .language-strip {
    grid-template-columns: 1fr;
  }

  #swapLangs {
    margin: .1rem auto;
  }

  .tx-hero {
    flex-wrap: wrap;
  }

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

  #translateBtn {
    width: 100%;
  }

  .translator-actions {
    flex-direction: column;
  }

  .translator-actions .btn {
    width: 100%;
  }
}