* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7fb;
  color: #1f2937;
}

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 60px;
}

.header {
  margin-bottom: 28px;
}

.header h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  color: #111827;
}

.header p {
  margin: 8px 0 0;
  color: #6b7280;
  font-size: 15px;
}

.translator-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
}

.controls {
  display: flex;
  margin-bottom: 18px;
}

.language-select {
  min-width: 190px;
  padding: 11px 14px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #fff;
  font-size: 15px;
  cursor: pointer;
  outline: none;
}

.language-select:focus {
  border-color: #6366f1;
}

.textarea-wrapper {
  position: relative;
}

#text {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  padding: 16px;
  padding-bottom: 40px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.6;
  outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}

#text:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#text::placeholder {
  color: #9ca3af;
}

.input-hint {
  position: absolute;
  bottom: 10px;
  right: 12px;
  color: #9ca3af;
  font-size: 12px;
  pointer-events: none;
}

.translate-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

#translateBtn {
  min-width: 100px;
  height: 42px;
  border: none;
  border-radius: 10px;
  padding: 0 20px;
  background: #4f46e5;
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

#translateBtn:hover {
  background: #4338ca;
}

#translateBtn:active {
  transform: translateY(1px);
}

#translateBtn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

#translateBtn.loading .spinner {
  display: inline-block;
}

#translateBtn.loading #translateText {
  display: none;
}

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

.status {
  min-height: 22px;
  margin: 14px 2px 0;
  color: #6b7280;
  font-size: 14px;
}

.status.success {
  color: #16a34a;
}

.status.error {
  color: #dc2626;
}

.results {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.result-box {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px;
  background: #fafafa;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.result-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-header .result-title {
  margin: 0;
}

.copy-btn {
  border: 1px solid #d1d5db;
  background: #fff;
  color: #374151;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.copy-btn:hover {
  background: #f3f4f6;
}

.copy-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.result-content {
  font-size: 16px;
  line-height: 1.7;
  white-space: pre-wrap;
  color: #111827;
  min-height: 24px;
}

.vocabulary-content {
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-wrap;
  color: #111827;
}

@media (max-width: 700px) {
  .container {
    width: calc(100% - 20px);
    padding: 20px 0 40px;
  }

  .header {
    margin-bottom: 18px;
  }

  .header h1 {
    font-size: 25px;
  }

  .header p {
    font-size: 14px;
  }

  .translator-card {
    padding: 14px;
    border-radius: 14px;
  }

  .controls {
    margin-bottom: 12px;
  }

  .language-select {
    width: 100%;
    min-width: 0;
  }

  #text {
    min-height: 160px;
    font-size: 16px;
  }

  .input-hint {
    font-size: 10px;
  }

  .translate-row {
    display: block;
  }

  #translateBtn {
    width: 100%;
  }

  .result-box {
    padding: 14px;
  }

  .usage-info {
  margin-top: 8px;
  color: #9ca3af;
  font-size: 12px;
  text-align: right;
}

.usage-dashboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 18px;
}

.usage-item {
  padding: 14px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #fafafa;
}

.usage-item span {
  display: block;
  color: #6b7280;
  font-size: 12px;
  margin-bottom: 5px;
}

.usage-item strong {
  display: block;
  color: #111827;
  font-size: 20px;
  margin-bottom: 4px;
}

.usage-item small {
  color: #9ca3af;
  font-size: 12px;
}

@media (max-width: 700px) {
  .usage-dashboard {
    grid-template-columns: 1fr;
  }
}

.billing-link {
  margin-top: 10px;
  text-align: right;
}

.billing-link a {
  color: #4f46e5;
  font-size: 13px;
  text-decoration: none;
}

.billing-link a:hover {
  text-decoration: underline;
}

  .result-content {
    font-size: 15px;
  }
}