:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* clean light palette with soft green background */
  --bg-primary: #0b503514;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;

  /* base level colors for charts and bars */
  --cefr-a1: #55d831;
  --cefr-a2: #09aa49;
  --cefr-b1: #ffca3a;
  --cefr-b2: #ed8815;
  --cefr-c1: #59a8e0;
  --cefr-c2: #324c9a;
  --cefr-off: #64748b;
  --cefr-unresolved: #ff0000;

  /* badge and chip colors for light mode */
  --cefr-a1-text: #1d720c;
  --cefr-a1-bg: #e6f9e0;
  --cefr-a1-border: #55d831;

  --cefr-a2-text: #056a2c;
  --cefr-a2-bg: #d7f5e1;
  --cefr-a2-border: #09aa49;

  --cefr-b1-text: #8a6500;
  --cefr-b1-bg: #fff6d9;
  --cefr-b1-border: #ffca3a;

  --cefr-b2-text: #994c03;
  --cefr-b2-bg: #fdecdb;
  --cefr-b2-border: #ed8815;

  --cefr-c1-text: #165c8f;
  --cefr-c1-bg: #e5f2fa;
  --cefr-c1-border: #59a8e0;

  --cefr-c2-text: #1f3168;
  --cefr-c2-bg: #dfe5f5;
  --cefr-c2-border: #324c9a;

  --cefr-off-text: #475569;
  --cefr-off-bg: #f1f5f9;
  --cefr-off-border: #cbd5e1;
}

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

html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
}

.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

/* header */
.app-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  background: var(--bg-secondary);
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.header-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.header-main-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo-group h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #1e293b; /* solid dark title text */
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-beta {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.02em;
  padding: 2px 7px;
  border-radius: 4px;
  background-color: #f0fdf4;
  color: #0b5035;
  border: 1px solid #a7f3d0;
  line-height: 1.4;
}

/* red accent icons */
.icon-red {
  color: #c1272d !important;
  stroke: #c1272d !important;
  display: inline-block;
  vertical-align: -2px;
  margin-right: 6px;
  flex-shrink: 0;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin {
  animation: spin 1s linear infinite;
}

.logo-group p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 2px;
}

.header-controls {
  display: flex;
  gap: 16px;
  align-items: center;
}

.header-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* white icons on dark buttons */
.icon-white {
  color: #ffffff !important;
  stroke: #ffffff !important;
  display: inline-block;
  vertical-align: -2px;
  margin-right: 6px;
  flex-shrink: 0;
}

.btn {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  background: var(--bg-secondary);
  color: var(--text-main);
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn:hover {
  background: var(--bg-tertiary);
  border-color: #94a3b8;
}

.btn-primary {
  background: #0b5035; /* brand green background */
  border-color: #073825;
  color: #ffffff;
}
.btn-primary:hover {
  background: #073825;
}
.btn-primary svg {
  color: #ffffff !important;
  stroke: #ffffff !important;
}

.btn-secondary-accent {
  border-color: #0b5035;
  color: #0b5035;
  font-weight: 600;
  background: var(--bg-secondary);
}
.btn-secondary-accent:hover {
  background: #f0fdf4;
  border-color: #073825;
  color: #073825;
}

.input-actions {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  align-items: center;
}

/* main two-column grid */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* card panels */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* sample button bar */
.sample-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
  align-items: center;
}

.sample-chip {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  background: #ffffff;
  color: #334155;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  transition: all 0.15s;
}

.sample-chip:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
  color: #0f172a;
}

/* text input area */
.text-input {
  width: 100%;
  height: 330px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--text-main);
  padding: 16px;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.75;
  resize: vertical;
  box-sizing: border-box;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.text-input::placeholder {
  color: #94a3b8;
  opacity: 1;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.75;
}

.text-input:hover,
.annotated-viewer:hover {
  border-color: #94a3b8;
}

.text-input:focus {
  outline: none;
  border-color: #0b5035;
  box-shadow: 0 0 0 3px rgba(11, 80, 53, 0.12);
}

/* annotated token output area */
.annotated-viewer {
  width: 100%;
  min-height: 382px;
  max-height: 440px;
  overflow-y: auto;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--text-main);
  padding: 16px;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.75;
  white-space: pre-wrap;
  word-wrap: break-word;
  box-sizing: border-box;
  transition: border-color 0.15s;
}

.annotated-viewer .viewer-placeholder {
  color: #94a3b8;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.75;
  user-select: none;
  pointer-events: none;
  display: inline;
}

.text-input::-webkit-scrollbar,
.annotated-viewer::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.text-input::-webkit-scrollbar-track,
.annotated-viewer::-webkit-scrollbar-track {
  background: transparent;
}

.text-input::-webkit-scrollbar-thumb,
.annotated-viewer::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.text-input::-webkit-scrollbar-thumb:hover,
.annotated-viewer::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* token chip highlights */
.token {
  display: inline-block;
  padding: 1px 6px;
  margin: 1px 1px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  vertical-align: baseline;
  transition: transform 0.1s, filter 0.15s;
}

.token:hover {
  transform: translateY(-1px);
  filter: brightness(0.95);
}

.token-a1 { background: var(--cefr-a1-bg); color: var(--cefr-a1-text); border-bottom: 2px solid var(--cefr-a1-border); }
.token-a2 { background: var(--cefr-a2-bg); color: var(--cefr-a2-text); border-bottom: 2px solid var(--cefr-a2-border); }
.token-b1 { background: var(--cefr-b1-bg); color: var(--cefr-b1-text); border-bottom: 2px solid var(--cefr-b1-border); }
.token-b2 { background: var(--cefr-b2-bg); color: var(--cefr-b2-text); border-bottom: 2px solid var(--cefr-b2-border); }
.token-c1 { background: var(--cefr-c1-bg); color: var(--cefr-c1-text); border-bottom: 2px solid var(--cefr-c1-border); }
.token-c2 { background: var(--cefr-c2-bg); color: var(--cefr-c2-text); border-bottom: 2px solid var(--cefr-c2-border); }
.token-off { color: #64748b; background: transparent; }

/* highlight unresolved tokens missing from dictionary */
.token-unresolved {
  background: #fff0f0 !important;
  color: #cc0000 !important;
  border: 1.5px dashed #ff0000 !important;
  border-radius: 4px;
  font-weight: 700 !important;
  box-shadow: 0 0 0 1px rgba(255, 0, 0, 0.25);
  animation: blinkRed 1.2s infinite ease-in-out;
}

.token-unresolved::after {
  content: " ⚑" !important;
  font-size: 0.72rem;
  color: #ff0000 !important;
  vertical-align: super;
}

@keyframes blinkRed {
  0%, 100% {
    border-color: #ff0000;
    box-shadow: 0 0 0 1px rgba(255, 0, 0, 0.25);
    background: #fff0f0;
  }
  50% {
    border-color: #ff4d4d;
    box-shadow: 0 0 0 4px rgba(255, 0, 0, 0.5);
    background: #ffe0e0;
  }
}

.cefr-tag.token-unresolved {
  background: #ffe0e0 !important;
  color: #cc0000 !important;
  border: 1px solid #ff0000 !important;
  animation: none !important;
}

.cefr-tag.token-off {
  background: #f1f5f9;
  color: #64748b;
  border: 1px solid #cbd5e1;
}

/* disable blinking inside modals */
.modal-overlay .token-unresolved,
.modal-content .token-unresolved,
.modal-overlay .cefr-tag.token-unresolved,
.modal-content .cefr-tag.token-unresolved {
  animation: none !important;
  box-shadow: none !important;
}

.modal-content .token-unresolved::after {
  content: "" !important;
}

/* level selection buttons inside modal */
.manual-level-group {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.manual-level-btn {
  padding: 5px 12px;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  background: #ffffff;
  transition: all 0.15s ease;
}

.manual-level-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.manual-level-btn[data-lvl="A1"]:hover { background: var(--cefr-a1-bg); color: var(--cefr-a1-text); border-color: var(--cefr-a1-border); }
.manual-level-btn[data-lvl="A2"]:hover { background: var(--cefr-a2-bg); color: var(--cefr-a2-text); border-color: var(--cefr-a2-border); }
.manual-level-btn[data-lvl="B1"]:hover { background: var(--cefr-b1-bg); color: var(--cefr-b1-text); border-color: var(--cefr-b1-border); }
.manual-level-btn[data-lvl="B2"]:hover { background: var(--cefr-b2-bg); color: var(--cefr-b2-text); border-color: var(--cefr-b2-border); }
.manual-level-btn[data-lvl="C1"]:hover { background: var(--cefr-c1-bg); color: var(--cefr-c1-text); border-color: var(--cefr-c1-border); }
.manual-level-btn[data-lvl="C2"]:hover { background: var(--cefr-c2-bg); color: var(--cefr-c2-text); border-color: var(--cefr-c2-border); }
.manual-level-btn[data-lvl="Off-list"]:hover { background: #f1f5f9; color: #475569; border-color: #cbd5e1; }

/* indicator for disambiguated senses */
.token-poly {
  position: relative;
  font-weight: 600;
}

.token-poly::after {
  content: "✦";
  font-size: 0.7rem;
  margin-left: 2px;
  vertical-align: super;
  color: #c1272d;
}

/* indicator for phrasal verbs */
.token-phrasal {
  position: relative;
  font-weight: 600;
  text-decoration: underline dotted #0b5035;
}

.token-phrasal::after {
  content: "◈";
  font-size: 0.7rem;
  margin-left: 2px;
  vertical-align: super;
  color: #0b5035;
}

.select-sense-btn {
  padding: 4px 10px;
  font-size: 0.78rem;
  border-radius: 4px;
  border: 1px solid #0b5035;
  background: #ffffff;
  color: #0b5035;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.select-sense-btn:hover {
  background: #0b5035;
  color: #ffffff;
}

.override-badge {
  display: inline-block;
  background: #0b503515;
  color: #0b5035;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 4px;
}

/* summary metrics row */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 18px;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .stat-box {
    padding: 10px 8px;
    text-align: center;
  }

  .stat-label {
    font-size: 0.65rem;
    line-height: 1.25;
  }

  .stat-val {
    font-size: 1.25rem;
    margin-top: 2px;
  }
}

@media (max-width: 440px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .stat-box {
    text-align: left;
    padding: 10px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .stat-val {
    margin-top: 0;
  }
}

.stat-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
}

.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.stat-val {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 3px;
}

/* stacked distribution bar */
.distribution-bar {
  display: flex;
  height: 22px;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 16px;
  background: #e2e8f0;
  border: 1px solid var(--border-color);
}

.dist-segment {
  height: 100%;
  transition: width 0.3s ease;
  position: relative;
}

.dist-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8rem;
  color: #334155;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* modal background scroll locking */
html.modal-scroll-locked,
body.modal-scroll-locked {
  overflow: hidden !important;
  overscroll-behavior: none !important;
}

/* word inspector modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.modal-content {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  overscroll-behavior: contain;
  max-height: 85vh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
  color: var(--text-main);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.word-heading {
  font-size: 1.45rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0f172a;
}

.cefr-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.close-btn:hover {
  color: var(--text-main);
}

.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin: 14px 0 6px 0;
}

.sense-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
}

.sense-card.active-sense {
  border-color: #0b5035;
  background: #f0fdf4;
}

.sense-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.guideword-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: #0b5035;
}

/* ai toggle switch */
.ai-toggle-group {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f8fafc;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.switch-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.switch-label-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.switch-toggle {
  position: relative;
  width: 34px;
  height: 18px;
  display: inline-block;
}

.switch-checkbox {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
  margin: 0;
  pointer-events: none;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #cbd5e1;
  transition: all 0.22s ease-in-out;
  border-radius: 18px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12);
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 2px;
  bottom: 2px;
  background-color: #ffffff;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.switch-checkbox:checked + .switch-slider {
  background-color: #16a34a;
}

.switch-checkbox:checked + .switch-slider:before {
  transform: translateX(16px);
}

.switch-wrapper:hover .switch-slider {
  background-color: #94a3b8;
}

.switch-wrapper:hover .switch-checkbox:checked + .switch-slider {
  background-color: #15803d;
}

.badge-gemini {
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 700;
  text-transform: uppercase;
  background: #f1f5f9;
  color: #64748b;
  border: 1px solid var(--border-strong);
  transition: all 0.2s ease;
}

.badge-gemini.active {
  background: #dcfce7;
  color: #15803d;
  border-color: #86efac;
}

.badge-gemini.error {
  background: #ffe4e6;
  color: #be123c;
  border-color: #fca5a5;
}

.btn-settings-icon {
  background: #ffffff;
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  flex-shrink: 0;
}

.btn-settings-icon:hover {
  background: #f0fdf4;
  border-color: #0b5035;
  color: #0b5035;
  box-shadow: 0 2px 5px rgba(11, 80, 53, 0.15);
}

.btn-settings-icon svg {
  width: 15px;
  height: 15px;
}

/* ai explanation callout */
.ai-explanation-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-left: 4px solid #16a34a;
  padding: 12px 14px;
  border-radius: 0 8px 8px 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: #14532d;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

/* footer sections */
.app-footer {
  margin-top: 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

@media (max-width: 960px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.attribution-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 18px 20px;
}

.attribution-box-header {
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.attribution-box-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.attribution-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 640px) {
  .attribution-columns {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

.attribution-subheading {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-heading {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}

.footer-citation {
  margin-bottom: 14px;
}

.citation-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 6px;
}

.zenodo-badge-link {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.zenodo-badge-link:hover {
  opacity: 0.85;
}

.zenodo-badge-link img {
  display: block;
  height: 20px;
}

.footer-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
}

.footer-meta strong {
  color: var(--text-main);
}

.footer-meta a {
  color: #0b5035;
  text-decoration: underline;
  font-weight: 600;
}

.footer-meta a:hover {
  color: #073825;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-links li {
  line-height: 1.4;
}

.footer-links a {
  color: #0b5035;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  text-decoration: underline;
  color: #073825;
}

.footer-link-static {
  font-weight: 600;
  color: var(--text-main);
}

.footer-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  background: var(--bg-tertiary);
  padding: 1px 5px;
  border-radius: 3px;
  color: #0f172a;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  font-size: 0.74rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom a {
  color: #0b5035;
  text-decoration: underline;
  font-weight: 600;
  transition: color 0.15s ease;
}

.footer-bottom a:hover {
  color: #073825;
}

/* settings modal with ai configuration and custom lexicon tabs */

.settings-modal-content {
  max-width: 760px;
  width: 95%;
  max-height: 90vh;
  overflow: hidden;
  overflow-x: hidden;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.settings-nav-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 2px solid var(--border-color);
  margin: 12px 0 16px 0;
  background: #f8fafc;
  padding: 6px 12px 0 12px;
  border-radius: 8px 8px 0 0;
}

.settings-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.settings-tab-btn:hover {
  color: var(--text-main);
}

.settings-tab-btn.active {
  color: #0b5035;
  border-bottom-color: #0b5035;
  background: #ffffff;
  border-radius: 6px 6px 0 0;
}

.settings-tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  border-radius: 9999px;
  background: #e2e8f0;
  color: #475569;
  box-sizing: border-box;
  vertical-align: middle;
}

.settings-tab-btn.active .settings-tab-badge {
  background: #0b5035;
  color: #ffffff;
}

.settings-tab-pane {
  display: none;
  overflow-y: auto;
  overflow-x: hidden;
  max-height: calc(90vh - 160px);
  padding-right: 6px;
  box-sizing: border-box;
  scrollbar-width: thin;
}

.settings-tab-pane::-webkit-scrollbar {
  width: 6px;
  height: 0px;
}

.settings-tab-pane.active {
  display: block;
}

.settings-help-text {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

/* lexicon toolbar actions */
.lexicon-toolbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.lexicon-toolbar .btn-sm {
  width: 100%;
  min-width: 0;
  height: 36px;
  padding: 6px 8px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  white-space: nowrap;
  box-sizing: border-box;
}

@media (max-width: 680px) {
  .lexicon-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-danger-accent {
  background: #ffffff;
  border: 1px solid #fecdd3;
  color: #be123c;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-danger-accent:hover {
  background: #ffe4e6;
  border-color: #fda4af;
  color: #9f1239;
}

.btn-template-link {
  color: #475569;
}

.lexicon-status-banner {
  font-size: 0.82rem;
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.lexicon-status-banner.success {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #86efac;
}

.lexicon-status-banner.error {
  background: #ffe4e6;
  color: #be123c;
  border: 1px solid #fca5a5;
}

/* form card for adding custom words or senses */
.quick-add-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 16px;
}

.quick-add-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.quick-add-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1.1fr) minmax(0, 1.3fr) minmax(0, 1.8fr);
  gap: 10px;
  align-items: start;
}

@media (max-width: 680px) {
  .quick-add-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.form-group label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.required-star {
  color: #dc2626;
  font-weight: 700;
  margin-left: 2px;
}

.form-group input, .form-group select {
  padding: 7px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 0.85rem;
  background: #ffffff;
  color: var(--text-main);
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.form-group input:focus, .form-group select:focus {
  border-color: #0b5035;
  outline: none;
  box-shadow: 0 0 0 2px rgba(11, 80, 53, 0.1);
}

.quick-add-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-top: 10px;
  border-top: 1px dashed var(--border-color);
  padding-top: 8px;
}

/* custom dictionary entries table */
.custom-entries-section {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
}

.entries-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  gap: 10px;
}

.entries-count-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.entries-count-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1;
  background: #e2e8f0;
  color: #475569;
  padding: 3px 8px;
  border-radius: 9999px;
  box-sizing: border-box;
}

.entries-search-input {
  padding: 5px 10px;
  font-size: 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  max-width: 180px;
  min-width: 0;
  box-sizing: border-box;
  background: #ffffff;
}

.entries-search-input:focus {
  border-color: #0b5035;
  outline: none;
}

.custom-entries-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.custom-entries-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  text-align: left;
}

.custom-entries-table th {
  padding: 8px 10px;
  background: #f1f5f9;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: sticky;
  top: 0;
  border-bottom: 1px solid var(--border-color);
  z-index: 1;
}

.custom-entries-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.custom-entries-table tr:last-child td {
  border-bottom: none;
}

.custom-entries-table tr:hover {
  background: #f8fafc;
}

.entry-type-pill {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: #f1f5f9;
  color: #475569;
  display: inline-block;
}

.entry-type-pill.poly {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.btn-del-entry {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  color: #94a3b8;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-del-entry:hover {
  color: #be123c;
  background: #ffe4e6;
}

.empty-custom-entries {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* ==========================================================================
   Mobile Responsiveness Overhaul (Screens <= 680px & <= 440px)
   ========================================================================== */

@media (max-width: 680px) {
  .app-container {
    padding: 12px 14px;
  }

  /* Header */
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px 14px;
    margin-bottom: 16px;
  }

  .header-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
  }

  .header-logo {
    height: 42px;
    max-width: 95px;
  }

  .header-main-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 10px;
    flex-wrap: wrap;
  }

  .logo-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .logo-group h1 {
    font-size: 1.35rem;
    gap: 6px;
    flex-wrap: wrap;
  }

  .logo-group p {
    font-size: 0.78rem;
    line-height: 1.35;
  }

  .ai-toggle-group {
    padding: 3px 8px;
    gap: 6px;
  }

  .switch-label-text {
    font-size: 0.75rem;
  }

  /* Sample Presets */
  .sample-bar {
    gap: 6px;
    margin-bottom: 14px;
  }

  .sample-chip {
    font-size: 0.75rem;
    padding: 6px 12px;
    max-width: 100%;
    white-space: normal;
    text-align: left;
    line-height: 1.3;
  }

  /* Card Panels */
  .card {
    padding: 14px;
    border-radius: 8px;
    margin-bottom: 16px !important;
  }

  .card-header {
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    margin-bottom: 10px;
  }

  .card-title {
    font-size: 0.88rem;
  }

  /* Text Input & Output Viewer */
  .text-input {
    height: 220px;
    padding: 12px;
    font-size: 16px !important; /* Prevents auto-zoom on iOS */
    line-height: 1.6;
  }

  .annotated-viewer {
    height: auto;
    min-height: 200px;
    max-height: 400px;
    padding: 12px;
    font-size: 0.95rem;
    line-height: 1.7;
    overflow-x: auto;
    word-break: break-word;
  }

  /* Input Action Buttons */
  .input-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
  }

  .input-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 10px 8px;
    font-size: 0.82rem;
  }

  /* Distribution Bar & Legend */
  .distribution-bar {
    height: 18px;
    margin-bottom: 12px;
  }

  .dist-legend {
    gap: 6px 12px;
    font-size: 0.72rem;
  }

  .legend-item {
    font-size: 0.72rem;
    gap: 4px;
  }

  /* Footer */
  .app-footer {
    padding: 16px 14px;
    margin-top: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 14px;
  }

  .attribution-box {
    padding: 14px 12px;
  }

  .attribution-columns {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .footer-links li {
    font-size: 0.75rem;
    word-break: break-word;
  }

  .footer-bottom {
    font-size: 0.7rem;
    justify-content: center;
    text-align: center;
  }

  /* Modals */
  .modal-overlay {
    padding: 8px;
  }

  .modal-content {
    width: 98% !important;
    max-width: 100% !important;
    max-height: 92vh;
    padding: 16px 12px;
    border-radius: 10px;
  }

  .word-heading {
    font-size: 1.25rem;
    gap: 6px;
  }

  .settings-modal-content {
    width: 98% !important;
    max-width: 100% !important;
    max-height: 92vh;
    padding: 14px 12px;
  }

  .settings-nav-tabs {
    gap: 4px;
    padding: 4px 6px 0 6px;
    margin: 8px 0 12px 0;
  }

  .settings-tab-btn {
    padding: 7px 10px;
    font-size: 0.78rem;
    gap: 4px;
  }

  .settings-tab-pane {
    max-height: calc(92vh - 120px);
    padding-right: 2px;
  }

  /* AI Config Action Buttons */
  .ai-config-actions {
    flex-direction: column-reverse !important;
    gap: 8px !important;
    align-items: stretch !important;
  }

  .ai-config-actions > div {
    display: flex;
    gap: 6px;
    width: 100%;
  }

  .ai-config-actions > div > button {
    flex: 1;
    justify-content: center;
    padding: 9px 8px;
    font-size: 0.8rem;
  }

  #clearGeminiKeyBtn {
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 8px;
    font-size: 0.8rem;
  }

  /* Custom Lexicon Toolbar & Form */
  .lexicon-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 6px;
  }

  .lexicon-toolbar .btn-sm {
    font-size: 0.74rem;
    padding: 6px 4px;
    height: 36px;
  }

  .quick-add-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .entries-section-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .entries-search-input {
    max-width: 100%;
    width: 100%;
  }

  .custom-entries-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Touch input sizing to prevent iOS auto-zoom */
  input[type="text"], input[type="password"], select, textarea {
    font-size: 16px !important;
  }
}

@media (max-width: 440px) {
  .header-main-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .ai-toggle-group {
    align-self: flex-start;
  }

  .input-actions {
    grid-template-columns: 1fr;
  }

  .quick-add-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .quick-add-def-row {
    flex-direction: column !important;
    gap: 8px !important;
  }

  .quick-add-def-row button {
    width: 100%;
    justify-content: center;
    padding: 9px;
  }
}