/* Palette: Fern-green, Vanilla, Mindaro, Celadon, Ash-gray */
:root {
  --fern-green: #799064;
  --vanilla: #ffffff;
  --mindaro: #cfe795;
  --celadon: #a7d3a6;
  --ash-gray: #add2c2;
  --dark-shade: #4a5a3d;

  /* Semantic aliases */
  --bg: var(--vanilla);
  --bg-gradient-start: var(--vanilla);
  --bg-gradient-mid: var(--ash-gray);
  --bg-gradient-end: var(--mindaro);
  --surface: var(--vanilla);
  --surface-alt: var(--ash-gray);
  --border: var(--celadon);
  --accent: var(--fern-green);
  --muted: var(--ash-gray);
  --text-primary: var(--fern-green);
  --text-secondary: var(--celadon);

  --border-radius: 4px;
  --transition: all 0.2s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
  min-height: 100vh;
  color: var(--text-primary);
  padding: 16px;
  line-height: 1.6;
  width: 100%;
  margin: 0;
}

#warning {
  background: linear-gradient(135deg, var(--ash-gray), var(--mindaro));
  color: var(--vanilla);
  padding: 20px;
  border-radius: var(--border-radius);
  text-align: center;
  margin: 20px 0;
}

#warning h1 {
  font-weight: 400;
  font-size: 1.3rem;
  margin: 0;
}

#content {
  width: 100%;
  margin: 0;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
}

/* Two column layout wrapper */
.two-column {
  display: grid;
  grid-template-columns: 1fr; /* default single column on small screens */
  gap: 24px;
}

.left-pane, .right-pane {
  min-width: 0; /* prevent overflow in grid */
}

/* Make left pane a flex column so child can fill height */
.left-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

@media (min-width: 900px) {
  .two-column {
    grid-template-columns: 1fr 1fr; /* 50/50 split */
    align-items: stretch; /* make left and right panes equal height */
  }

  /* Right pane: make the translation section fill to the bottom */
  .right-pane {
    display: flex;
    flex-direction: column;
    min-height: 0; /* allow children to size */
  }
  .left-pane .results-section,
  .right-pane .results-section {
    display: flex;
    flex-direction: column;
    flex: 1;       /* occupy remaining height in the pane */
    min-height: 0; /* allow textarea to grow/shrink */
  }
  .right-pane .results-textarea {
    flex: 1;       /* stretch to the bottom */
    height: auto;
    min-height: 400px; /* keep existing minimum */
    overflow: auto;    /* scroll internally when needed */
  }

  /* Allow the first form-container in both panes to fill height */
  .left-pane > .form-container,
  .right-pane > .form-container {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }
}

.main-title {
  text-align: center;
  color: var(--fern-green);
  margin-bottom: 24px;
  font-weight: 300;
  font-size: 1.8rem;
}

.form-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.input-group {
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  gap: 8px;
  min-width: 0; /* allow children to shrink within flex/grid */
}

/* Utilities */
.flex-row { display: flex; flex-direction: row; align-items: flex-end; gap: 16px; }
.flex-1 { flex: 1 1 auto; min-width: 0; width: auto; }
.w-35 { flex: 0 0 35%; }
.w-20 { flex: 0 0 20%; }
.gap-8 { gap: 8px; }

/* Google Doc controls: default hidden buttons, compact sizing */
#authorize-button,
#signout-button,
#post-translation-button { display: none; }

#authorize-button.modern-button,
#signout-button.modern-button,
#post-translation-button.modern-button {
  min-width: auto;
  white-space: nowrap;
}

.input-group label {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group label a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

.input-group label a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.modern-input {
  padding: 16px 20px;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--surface);
  font-size: 1rem;
  color: var(--dark-shade);
  transition: var(--transition);
  outline: none;
  width: 100%; /* make inputs/selects responsive */
}

.modern-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* Specific styles for select elements */
.modern-input select,
select.modern-input {
  padding: 16px 20px;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--surface);
  font-size: 1rem;
  color: var(--dark-shade);
  transition: var(--transition);
  outline: none;
  cursor: pointer;
  appearance: auto;
  width: 100%; /* allow the select to shrink with its container */
}

.modern-input:focus,
select.modern-input:focus {
  border-color: var(--accent);
  background: var(--surface);
}

.button-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin: 24px 0;
  flex-wrap: wrap;
}

.modern-button {
  padding: 16px 32px;
  border: 2px solid transparent; /* avoid layout shift on hover */
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  min-width: 160px;
  outline: none;
  position: relative;
  overflow: hidden;
}

.modern-button .material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 500, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  margin-right: 8px;
}

.modern-button::before {
  content: none;
}

/* Dark-shade border on rollover for all buttons */
.modern-button:not(:disabled):hover {
  border-color: var(--dark-shade);
}

.btn-primary {
  background: var(--ash-gray);
  color: var(--dark-shade);
}

.btn-primary:hover:not(:disabled) {
  background: var(--ash-gray);
  color: var(--dark-shade);
}

.btn-secondary {
  background: var(--ash-gray);
  color: var(--dark-shade);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--ash-gray);
  color: var(--dark-shade);
}

.modern-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  color: var(--dark-shade);
}

.results-section {
  margin-top: 32px;
}

.results-label {
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.results-textarea {
  width: 100%;
  min-height: 200px;
  padding: 16px;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--surface);
  font-size: 0.95rem;
  color: var(--dark-shade);
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  line-height: 1.6;
  resize: vertical;
  transition: var(--transition);
  outline: none;
}

.results-textarea:focus {
  border-color: var(--accent);
  background: var(--surface);
}

.results-textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* Keep consistent spacing for results in columns */
.two-column .results-section { margin-top: 0; }

/* removed unused pulse animation */

/* Volume Indicator */
.volume-container {
  margin: 24px 0;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--border-radius);
  display: none;
}

.volume-container.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

.volume-label {
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.microphone-icon {
  width: 16px;
  height: 16px;
  fill: var(--accent);
}

.volume-bar-container {
  background: var(--surface);
  height: 20px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.volume-bar {
  height: 100%;
  background: linear-gradient(90deg,
    var(--mindaro) 0%,
    var(--celadon) 50%,
    var(--ash-gray) 100%);
  width: 0%;
  transition: width 0.1s ease-out;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}

.volume-level {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 8px;
  text-align: center;
  font-weight: 500;
}


@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Loading shimmer removed to satisfy palette-only colors */