:root {
  --color-bg: #0c0a09;
  --color-bg-2: #14100d;
  --color-surface: #17130f;
  --color-surface-raised: #1d1712;
  --color-text: #e8ddd0;
  --color-text-muted: #9a8e7a;
  --color-primary: #caa14d;
  --color-primary-soft: #e4c983;
  --color-primary-dark: #a5802f;
  --color-primary-contrast: #16110b;
  --color-border: #3a2f22;
  --color-border-soft: #241d16;
  --color-accent: #7a1f2b;
  --color-error-bg: #24100f;
  --color-error-text: #ff9a8a;
  --radius: 0;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
}

* { box-sizing: border-box; }

html { background: var(--color-bg); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(202, 161, 77, 0.08), transparent 60%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-2) 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* ---------- Grid background ---------- */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(202, 161, 77, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(202, 161, 77, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ---------- Layout ---------- */
.app {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Header ---------- */
.app-header {
  padding: 12px 0 20px;
  border-bottom: 1px solid var(--color-border-soft);
  margin-bottom: 32px;
}

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

.header-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.header-year {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.app-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3rem;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
  background: linear-gradient(180deg, var(--color-primary-soft), var(--color-primary-dark));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.tagline {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.9rem;
  max-width: 540px;
  line-height: 1.6;
}

/* ---------- Main ---------- */
main { flex: 1; }

.panel {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  padding: 28px;
  position: relative;
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-border-soft);
}

.tab-btn {
  background: none;
  border: none;
  padding: 10px 20px;
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.82rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
  font-family: var(--font-body);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

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

.tab-btn.active {
  color: var(--color-primary-soft);
  border-bottom-color: var(--color-primary);
}

/* ---------- Text area ---------- */
.text-area {
  width: 100%;
  padding: 16px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.92rem;
  font-family: var(--font-body);
  line-height: 1.7;
  resize: vertical;
  min-height: 120px;
  border-radius: 0;
}

.text-area::placeholder { color: #6f6553; }

.text-area:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(202, 161, 77, 0.12);
}

/* ---------- Dropzone ---------- */
.dropzone {
  border: 1.5px dashed var(--color-border);
  padding: 40px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.dragover {
  border-color: var(--color-primary);
  background: rgba(202, 161, 77, 0.06);
  outline: none;
}

.dropzone-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.dropzone-title {
  margin: 4px 0;
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.95rem;
}

.dropzone-hint {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.selected-file {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  padding: 10px 14px;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-soft);
  font-size: 0.88rem;
  word-break: break-all;
}

/* ---------- Buttons ---------- */
button {
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}

.btn-primary {
  width: 100%;
  margin-top: 20px;
  padding: 14px 20px;
  background: linear-gradient(180deg, var(--color-primary-soft), var(--color-primary-dark));
  color: var(--color-primary-contrast);
  border: none;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: filter 0.15s ease, transform 0.1s ease;
}

.btn-primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn-primary:active:not(:disabled) { transform: translateY(1px); }

.btn-primary:disabled {
  background: #3a3226;
  color: #c9bd9e;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 8px 14px;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-weight: 500;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary-soft); }

.btn-text {
  background: none;
  border: none;
  color: var(--color-primary-soft);
  font-weight: 500;
  padding: 6px 4px;
  font-size: 0.85rem;
}

.btn-text:hover { opacity: 0.8; }

/* ---------- Loading ---------- */
#loading-section {
  text-align: center;
  padding: 52px 24px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto 22px;
}

.spinner-ring {
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

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

.loading-label {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.2rem;
  margin: 0 0 8px;
  color: var(--color-primary-soft);
}

.loading-hint {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* ---------- Error ---------- */
.error-panel {
  text-align: center;
  background: var(--color-error-bg);
  border-color: #4a1c1c;
}

.error-icon { font-size: 1.6rem; margin-bottom: 8px; }

.error-message {
  color: var(--color-error-text);
  font-weight: 500;
  margin: 0 0 16px;
  font-size: 0.92rem;
}

/* ---------- Results / Analysis document ---------- */
#results-section {
  margin-top: 0;
}

.results-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-soft);
}

.results-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Analysis document ---------- */
.analysis {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  padding: 48px 44px;
}

.analysis-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--color-primary-dark);
}

.analysis-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.analysis-label {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
}

.analysis-year {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-style: italic;
  color: var(--color-text-muted);
}

.analysis-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  margin: 0 0 8px;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.analysis-meta-line {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- Sections ---------- */
.analysis-section {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border-soft);
}

.analysis-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.section-label {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.section-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text);
}

.overall-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-primary-soft);
}

.empty-note {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  font-style: italic;
  margin: 0;
}

/* ---------- Vital table ---------- */
.vital-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.vital-table thead th {
  text-align: left;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 600;
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
}

.vital-table tbody td {
  padding: 12px;
  border-bottom: 1px solid var(--color-border-soft);
  vertical-align: top;
  line-height: 1.6;
}

.vital-table tbody tr:last-child td {
  border-bottom: none;
}

.col-item { width: 40%; }
.col-stars { width: 12%; text-align: center !important; }
.col-reason { width: 48%; }

.star {
  color: var(--color-primary);
  font-size: 0.9rem;
}

.star-empty {
  color: var(--color-border);
  font-size: 0.9rem;
}

.vital-item-text {
  font-weight: 500;
}

.vital-reason-text {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ---------- Analysis footer ---------- */
.analysis-footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-soft);
  text-align: center;
}

.footer-label {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ---------- App footer ---------- */
.app-footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  margin-top: 40px;
  opacity: 0.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .app { padding: 20px 16px 32px; }
  .app-title { font-size: 2.2rem; }
  .analysis { padding: 24px 20px; }
  .analysis-title { font-size: 1.5rem; }
  .vital-table, .vital-table thead, .vital-table tbody, .vital-table tr,
  .vital-table th, .vital-table td { display: block; }
  .col-stars { text-align: left !important; }
  .vital-table thead { display: none; }
  .vital-table tbody td {
    padding: 10px 8px;
  }
  .vital-table tbody tr {
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
    display: block;
  }
}