/* Styling System for fanyi-jiebaosystem */

:root {
  --bg: #f4f7f6; /* Very soft light sage-gray background, eye-friendly */
  --bg-glow: radial-gradient(circle at 50% -20%, rgba(5, 150, 105, 0.08) 0%, rgba(244, 247, 246, 0) 60%);
  --card-bg: rgba(255, 255, 255, 0.7); /* Translucent white card */
  --card-border: rgba(16, 185, 129, 0.08); /* Subtle green-tinted border */
  --txt: #0f172a; /* Dark slate */
  --txt-2: #334155; /* Slate 700 */
  --txt-3: #708878; /* Soft sage gray */
  
  --accent: #059669; /* Emerald/Sage green */
  --accent-glow: rgba(5, 150, 105, 0.2);
  --accent-2: #0ea5e9; /* Sky blue */
  --success: #10b981;
  --danger: #ef4444;
  
  --input-bg: rgba(255, 255, 255, 0.8);
  --input-border: rgba(16, 185, 129, 0.08);
  --input-focus: rgba(5, 150, 105, 0.2);
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  background-color: var(--bg);
  color: var(--txt);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
}

/* Background Glow Effect */
.bg-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: var(--bg-glow);
  z-index: -1;
  pointer-events: none;
}

.app-container {
  width: 100%;
  max-width: 1100px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 10;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  animation: float 6s ease-in-out infinite;
}

.app-header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.app-header h1 span {
  color: var(--accent);
}

.header-badges {
  display: flex;
  gap: 8px;
  align-items: center;
}

.badge {
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--txt-2);
}

.badge-interactive {
  background: rgba(5, 150, 105, 0.08);
  border: 1px solid rgba(5, 150, 105, 0.2);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.badge-interactive:hover {
  background: rgba(99, 102, 241, 0.25);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

/* Translator Glass Card */
.translator-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Toolbar */
.card-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--card-border);
  gap: 16px;
  flex-wrap: wrap;
}

.lang-selector-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.select-control {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--txt);
  padding: 8px 16px;
  border-radius: 12px;
  outline: none;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.select-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--input-focus);
}

.style-select {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.2);
}

.style-select:focus {
  border-color: var(--accent-2);
}

.style-selector-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--txt-2);
}

.btn-icon {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--txt-2);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--txt);
  transform: scale(1.05);
}

/* Editor Grid */
.panels-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 380px;
}

/* Share panel properties */
.editor-panel {
  display: flex;
  flex-direction: column;
  padding: 20px;
  position: relative;
}

.src-panel {
  border-right: 1px solid var(--card-border);
}

.editor-panel textarea {
  width: 100%;
  flex: 1;
  background: transparent;
  border: none;
  resize: none;
  outline: none;
  color: var(--txt);
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  min-height: 240px;
}

.editor-panel textarea::placeholder {
  color: var(--txt-3);
}

.output-text {
  flex: 1;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--txt);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  min-height: 240px;
}

.output-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  color: var(--txt-3);
  font-size: 0.95rem;
  text-align: center;
}

/* Panel Footer */
.panel-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.char-counter {
  font-size: 0.8rem;
  color: var(--txt-3);
}

.footer-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-action {
  background: transparent;
  border: none;
  color: var(--txt-3);
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-action:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--txt-2);
}

.btn-primary-action {
  background: var(--accent);
  border: none;
  color: #fff;
  padding: 8px 20px;
  border-radius: 12px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: var(--transition);
}

.btn-primary-action:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-primary-action:active {
  transform: translateY(0);
}

/* Loading state */
.output-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 16px;
  color: var(--txt-2);
  font-size: 0.9rem;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(0, 0, 0, 0.05);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Footer */
.app-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--txt-3);
  padding: 10px 0;
}

/* Toast Messages */
#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--txt);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideUp 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--danger); }

/* Float & Spin Animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

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

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .app-container {
    padding: 12px;
  }
  
  .panels-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  
  .src-panel {
    border-right: none;
    border-bottom: 1px solid var(--card-border);
  }
  
  .editor-panel textarea {
    min-height: 180px;
  }
  
  .output-text {
    min-height: 180px;
  }
  
  .card-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .lang-selector-group {
    justify-content: space-between;
  }
  
  .select-control {
    flex: 1;
  }
  
  .style-selector-group {
    justify-content: flex-end;
  }
}