/* ═══════════════════════════════════════════════════
   LexiSight — Premium Styles
   Aesthetic: Dark editorial, refined brutalism
   Fonts: Syne (display) + DM Sans (body) + DM Mono (code)
═══════════════════════════════════════════════════ */

:root {
  /* Core palette */
  --bg:          #0B0D12;
  --bg-2:        #0F1117;
  --surface:     rgba(255,255,255,0.04);
  --surface-2:   rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --border-2:    rgba(255,255,255,0.13);

  /* Text */
  --text-1:      #F0F0F0;
  --text-2:      #9A9CAE;
  --text-3:      #5C5E70;

  /* Accents */
  --teal:        #2ECFB3;
  --teal-dim:    rgba(46,207,179,0.12);
  --violet:      #7C6EFF;
  --violet-dim:  rgba(124,110,255,0.12);
  --amber:       #F5A623;
  --amber-dim:   rgba(245,166,35,0.12);
  --rose:        #FF6B8A;
  --rose-dim:    rgba(255,107,138,0.12);

  /* Gradient */
  --grad:        linear-gradient(135deg, #6C63FF 0%, #2ECFB3 100%);

  /* Layout */
  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --max-w:       780px;

  /* Easing */
  --ease:        cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Ambient Background ── */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
}
.orb-1 {
  width: 500px; height: 500px;
  background: #6C63FF;
  top: -150px; left: -150px;
}
.orb-2 {
  width: 400px; height: 400px;
  background: #2ECFB3;
  bottom: -100px; right: -100px;
}
.orb-3 {
  width: 300px; height: 300px;
  background: #FF6B8A;
  top: 50%; right: 10%;
  opacity: 0.08;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
}

/* ── Layout ── */
.layout {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Header ── */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
  animation: fadeDown 0.6s var(--ease) both;
}

.logo-mark {
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(108,99,255,0.5));
}

.header-text { flex: 1; }

.brand {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.tagline {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
}

.header-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid rgba(46,207,179,0.25);
  padding: 5px 10px;
  border-radius: 100px;
  background: rgba(46,207,179,0.06);
}

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 2s ease-in-out infinite;
}

/* ── Hero ── */
.hero {
  margin-bottom: 28px;
  animation: fadeDown 0.6s 0.1s var(--ease) both;
}

.hero-sub {
  color: var(--text-2);
  font-size: 15px;
  max-width: 520px;
  font-weight: 300;
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--border-2); }

.upload-card {
  margin-bottom: 28px;
  animation: fadeUp 0.6s 0.15s var(--ease) both;
}

/* ── Drop Zone ── */
.dropzone {
  border: 1.5px dashed var(--border-2);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--violet);
  background: var(--violet-dim);
}

.drop-inner {
  text-align: center;
  padding: 32px 20px;
  pointer-events: none;
}

.drop-icon {
  color: var(--text-3);
  margin-bottom: 12px;
  display: flex;
  justify-content: center;
  transition: color 0.2s, transform 0.2s;
}

.dropzone:hover .drop-icon { color: var(--violet); transform: translateY(-2px); }

.drop-title {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 4px;
}

.drop-sub {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 8px;
}

.link-btn {
  background: none;
  border: none;
  color: var(--violet);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  pointer-events: all;
}

.drop-formats {
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.3px;
  font-family: 'DM Mono', monospace;
}

/* ── Preview ── */
.preview-wrap {
  position: relative;
  width: 100%;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.preview-img {
  max-height: 280px;
  max-width: 100%;
  border-radius: var(--radius-sm);
  object-fit: contain;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}

.preview-meta {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-3);
  font-family: 'DM Mono', monospace;
}

.remove-btn {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-2);
  transition: background 0.15s, color 0.15s;
}
.remove-btn:hover { background: var(--rose-dim); color: var(--rose); border-color: var(--rose); }

/* ── Field ── */
.field-group { margin-bottom: 20px; }

.field-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 8px;
}

.field-badge {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 100px;
  background: var(--surface-2);
  color: var(--text-3);
  border: 1px solid var(--border);
}

.field-textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  padding: 12px 14px;
  resize: vertical;
  transition: border-color 0.15s;
  outline: none;
}
.field-textarea::placeholder { color: var(--text-3); }
.field-textarea:focus { border-color: var(--violet); }

/* ── Run Button ── */
.run-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--grad);
  color: white;
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 rgba(108,99,255,0);
}

.run-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.run-btn:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.35);
}

.run-btn:not(:disabled):active { transform: translateY(0); }

.btn-label, .btn-spinner {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon { flex-shrink: 0; }

.spinner-ring {
  animation: spin 0.8s linear infinite;
}

/* ── Error Banner ── */
.error-banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255,107,138,0.1);
  border: 1px solid rgba(255,107,138,0.25);
  color: var(--rose);
  font-size: 13px;
  animation: fadeUp 0.3s var(--ease);
}

/* ── Results ── */
.results-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: fadeUp 0.5s var(--ease);
}

.result-card { overflow: hidden; }

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.card-icon {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.card-icon.teal   { background: var(--teal-dim);   color: var(--teal); }
.card-icon.violet { background: var(--violet-dim);  color: var(--violet); }
.card-icon.amber  { background: var(--amber-dim);   color: var(--amber); }
.card-icon.rose   { background: var(--rose-dim);    color: var(--rose); }

.card-title {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.2px;
  flex: 1;
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-2);
  font-size: 11px;
  font-family: inherit;
  font-weight: 500;
  padding: 4px 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.copy-btn:hover { background: var(--teal-dim); color: var(--teal); border-color: rgba(46,207,179,0.3); }
.copy-btn.copied { color: var(--teal); border-color: var(--teal); }

.text-output {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-1);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-2) transparent;
}

/* ── Two column ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 580px) {
  .two-col { grid-template-columns: 1fr; }
}

.summary-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  font-style: italic;
}

.headings-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.headings-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--amber);
  padding: 6px 10px;
  background: var(--amber-dim);
  border-radius: 6px;
  border-left: 2px solid var(--amber);
}

.empty-state {
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
  padding: 12px 0;
  font-style: italic;
}

/* ── Metrics ── */
.metrics-sub {
  font-size: 11px;
  color: var(--text-3);
  margin-left: auto;
  letter-spacing: 0.3px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 420px) { .metrics-grid { grid-template-columns: 1fr; } }

.metric-block {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.metric-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 4px;
  font-family: 'DM Mono', monospace;
}

.metric-value {
  font-family: 'Syne', sans-serif;
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-desc {
  font-size: 11px;
  color: var(--text-3);
  margin-bottom: 10px;
}

.metric-bar {
  height: 4px;
  background: var(--surface-2);
  border-radius: 100px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  border-radius: 100px;
  background: var(--grad);
  width: 0%;
  transition: width 1s var(--ease);
}

/* ── Footer ── */
.footer {
  margin-top: 60px;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer-sep { opacity: 0.4; }

/* ── Animations ── */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }

/* ── Selection ── */
::selection { background: rgba(124,110,255,0.35); color: var(--text-1); }