/* ==========================================
   Nöetic Monitor — Design System & Styles
   ========================================== */

/* --- CSS Variables (Design Tokens) --- */
:root {
  /* Colors */
  --bg: #F9FAFB;
  --card-bg: #FFFFFF;
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --text-main: #111827;
  --text-body: #374151;
  --text-sub: #6B7280;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --input-border: #D1D5DB;
  --error: #EF4444;
  --success: #10B981;

  /* Cognitive Type Colors */
  --type-v: #3B82F6;
  --type-a: #F59E0B;
  --type-l: #10B981;
  --type-k: #EF4444;
  --type-ar: #8B5CF6;
  --type-ex: #EF4444;

  /* Purpose Colors */
  --purpose-understand: #3B82F6;
  --purpose-review: #F59E0B;
  --purpose-reference: #8B5CF6;

  /* Typography */
  --font-en: 'Inter', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;

  /* Spacing & Radii */
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-jp);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Screen Containers --- */
.screen {
  display: none;
  flex: 1;
  flex-direction: column;
}
.screen.active {
  display: flex;
}

/* --- Login Screen --- */
.login-screen {
  justify-content: center;
  align-items: center;
  padding: 2rem 1rem;
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
}

.login-logo {
  font-family: var(--font-en);
  font-size: 1.6rem;
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.login-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 1.5rem;
}

.login-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-jp);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  margin-bottom: 1rem;
}
.login-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.login-input.has-error {
  border-color: var(--error);
}

.login-btn {
  width: 100%;
  padding: 0.8rem 2rem;
  background: var(--primary);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-jp);
  transition: background 0.2s;
  margin-bottom: 1rem;
}
.login-btn:hover {
  background: var(--primary-hover);
}

.login-note {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.login-footer {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2rem;
}

.error-msg {
  color: var(--error);
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  display: none;
}
.error-msg.visible {
  display: block;
}

/* --- Header --- */
.app-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-logo {
  font-family: var(--font-en);
  font-size: 1.2rem;
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-badge {
  background: #EFF6FF;
  color: var(--primary);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
  font-family: var(--font-en);
}

.header-logout {
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-jp);
  transition: color 0.2s;
}
.header-logout:hover {
  color: var(--text-sub);
}

/* --- Main Screen --- */
.main-content {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.section-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 2rem;
}

/* --- Tabs --- */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.tab-btn {
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-sub);
  font-size: 0.9rem;
  font-family: var(--font-jp);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}

/* --- Drop Zone --- */
.drop-zone {
  height: 160px;
  border: 2px dashed var(--input-border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary);
  background: #EFF6FF;
}
.drop-zone-icon {
  font-size: 2rem;
}
.drop-zone-text {
  font-size: 0.85rem;
  color: var(--text-sub);
}
.drop-zone-formats {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* --- File Info --- */
.file-info {
  display: none;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-top: 0.75rem;
}
.file-info.visible {
  display: flex;
}
.file-info-name {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-body);
  font-weight: 500;
}
.file-info-size {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.file-info-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0 4px;
  transition: color 0.2s;
}
.file-info-remove:hover {
  color: var(--error);
}

/* --- Extracted Text --- */
.extracted-text-area {
  display: none;
  margin-top: 1rem;
}
.extracted-text-area.visible {
  display: block;
}

/* --- Form Elements --- */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-body);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-label-hint {
  font-size: 0.75rem;
  color: var(--text-sub);
  font-weight: 400;
  margin-top: 0.15rem;
  display: block;
}

.form-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.75rem;
}
.form-link:hover {
  text-decoration: underline;
}

textarea {
  width: 100%;
  min-height: 200px;
  padding: 0.75rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-jp);
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-jp);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

/* --- Card Selectors --- */
.card-group {
  display: grid;
  gap: 0.75rem;
}
.card-group.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.card-group.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}
.card-group.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card-option {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  cursor: pointer;
  transition: border-color 0.2s, border-width 0.15s, background 0.2s, box-shadow 0.2s;
  text-align: center;
  position: relative;
}
.card-option:hover {
  box-shadow: var(--shadow);
}
.card-option.selected {
  border-width: 2px;
  padding: calc(1rem - 1px);
}
.card-option.disabled {
  opacity: 0.3;
  pointer-events: none;
}

.card-option-badge {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  font-weight: 600;
}
.card-option-badge.sub {
  color: var(--text-sub);
}

.card-option-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.card-option-desc {
  font-size: 0.7rem;
  color: var(--text-sub);
  line-height: 1.4;
}

/* --- Submit Button --- */
.submit-btn {
  width: 100%;
  padding: 0.9rem 2rem;
  background: var(--primary);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-jp);
  transition: background 0.2s, opacity 0.2s;
  margin-top: 0.5rem;
}
.submit-btn:hover:not(:disabled) {
  background: var(--primary-hover);
}
.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* --- Loading Overlay --- */
.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(249,250,251,0.85);
  backdrop-filter: blur(4px);
  z-index: 200;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 1.25rem;
}
.loading-overlay.visible {
  display: flex;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  color: var(--text-body);
  font-size: 0.95rem;
  font-weight: 500;
}
.loading-sub {
  color: var(--text-sub);
  font-size: 0.8rem;
}

/* --- Result Screen --- */
.result-content {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

.result-summary {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.result-summary-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.result-badge {
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 4px;
  font-weight: 500;
}
.result-summary-bottom {
  font-size: 0.85rem;
  color: var(--text-body);
}

/* --- Document Preview --- */
.doc-preview {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-body);
  overflow-x: auto;
}
.doc-preview h1, .doc-preview h2, .doc-preview h3 {
  font-weight: 700;
  color: var(--text-main);
}
.doc-preview h1 { font-size: 1.4rem; margin: 1.25em 0 0.75em; }
.doc-preview h2 { font-size: 1.2rem; margin: 1em 0 0.5em; }
.doc-preview h3 { font-size: 1.05rem; margin: 0.75em 0 0.5em; }
.doc-preview p { margin: 0.5em 0; }
.doc-preview table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
}
.doc-preview th, .doc-preview td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.doc-preview th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text-body);
}
.doc-preview svg {
  max-width: 100%;
  height: auto;
}
.doc-preview ul, .doc-preview ol {
  padding-left: 1.5em;
  margin: 0.5em 0;
}

/* --- Action Buttons --- */
.action-buttons {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.action-btn {
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-jp);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
  border: 1px solid transparent;
  white-space: nowrap;
}
.action-btn.primary {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}
.action-btn.primary:hover {
  background: var(--primary-hover);
}
.action-btn.secondary {
  background: var(--card-bg);
  color: var(--text-body);
  border-color: var(--input-border);
}
.action-btn.secondary:hover {
  background: var(--bg);
  box-shadow: var(--shadow);
}

/* --- Footer --- */
.app-footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* --- Form Validation Highlight --- */
.has-error {
  border-color: var(--error) !important;
}
.form-error-text {
  display: none;
  color: var(--error);
  font-size: 0.8rem;
  margin-top: 0.5rem;
}
.form-error-text.visible {
  display: block;
}

/* --- Other doc type input --- */
.other-doc-type {
  display: none;
  margin-top: 0.5rem;
}
.other-doc-type.visible {
  display: block;
}
.other-doc-type input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-family: var(--font-jp);
  outline: none;
  transition: border-color 0.2s;
}
.other-doc-type input:focus {
  border-color: var(--primary);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .main-content, .result-content {
    padding: 1.5rem 1rem;
  }
  .card-group.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-group.cols-3 {
    grid-template-columns: 1fr;
  }
  .action-buttons {
    flex-direction: column;
  }
  .action-btn {
    width: 100%;
    text-align: center;
  }
  .login-card {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .card-group.cols-2 {
    grid-template-columns: 1fr;
  }
  .app-header {
    padding: 0.75rem 1rem;
  }
}

.card,section,h2,h3,.hero{page-break-inside:avoid;break-inside:avoid;}