:root {
  --bg-deep: #050a14;
  --cyan: #00d4ff;
  --cyan-dim: #5eb8e5;
  --cyan-glow: rgba(0, 212, 255, 0.3);
  --text-primary: #f4f8ff;
  --text-muted: #8aa4c4;
  --card-bg: rgba(8, 20, 44, 0.78);
  --card-border: rgba(0, 190, 255, 0.22);
  --success: #00ba7c;
  --warning: #f5a623;
  --danger: #ff4d6a;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: 'Inter', var(--font);
  min-height: 100vh;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse at 12% -5%, rgba(0, 110, 210, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 88% 105%, rgba(0, 180, 255, 0.07) 0%, transparent 45%);
  color: var(--text-primary);
  overflow-x: hidden;
}

code {
  font-family: 'Consolas', 'SF Mono', 'Fira Code', monospace;
  font-size: 0.9em;
  padding: 2px 6px;
  border-radius: 5px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.18);
  color: var(--cyan-dim);
}

.grid-overlay {
  position: fixed; inset: 0;
  background:
    linear-gradient(rgba(0, 150, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 150, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: 0; pointer-events: none;
}

.glow-overlay {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at center, transparent 35%, rgba(0, 0, 0, 0.5) 100%);
  z-index: 1; pointer-events: none;
}

.app {
  position: relative; z-index: 2;
  width: min(96%, 1100px);
  margin: 0 auto;
  padding: 20px 20px 40px;
}

/* Header */
.top-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap; margin-bottom: 22px;
}

.logo-section { display: flex; align-items: center; gap: 14px; }
.logo-section img { width: 52px; height: 52px; border-radius: 14px; object-fit: cover; border: 1px solid var(--card-border); }


.logo-section h1 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 28px; font-weight: 700; line-height: 1.1;
}

.logo-section p { font-size: 12px; color: var(--text-muted); letter-spacing: 0.4px; }
.logo-section p strong { color: var(--cyan); font-weight: 600; }

.version-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Rajdhani', sans-serif; font-size: 13px; font-weight: 700;
  letter-spacing: 0.4px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid rgba(0, 212, 255, 0.35); background: rgba(0, 212, 255, 0.08);
  color: var(--cyan); cursor: pointer; transition: 0.2s ease; white-space: nowrap;
}

.version-pill:hover {
  background: rgba(0, 212, 255, 0.16);
  box-shadow: 0 0 16px var(--cyan-glow);
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 28px;
  padding: 0 8px;
}

.hero-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}

.hero-lead {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto 8px;
}

.hero-sub {
  font-size: 12px;
  color: rgba(138, 164, 196, 0.75);
  letter-spacing: 0.3px;
}

/* Workspace */
.workspace {
  display: grid;
  grid-template-columns: minmax(260px, 300px) 1fr;
  gap: 18px;
  align-items: start;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.28);
}

.panel-settings { padding: 18px; }

.panel-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px; font-weight: 700;
  letter-spacing: 0.6px; text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}

/* Rules */
.rule-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }

.rule-option { cursor: pointer; }

.rule-option input { position: absolute; opacity: 0; pointer-events: none; }

.rule-card {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(0, 190, 255, 0.14);
  background: rgba(4, 12, 28, 0.5);
  transition: 0.2s ease;
}

.rule-card strong {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.rule-card small {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.45;
}

.rule-option input:checked + .rule-card {
  border-color: rgba(0, 212, 255, 0.5);
  background: rgba(0, 212, 255, 0.08);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.1);
}

.rule-option:hover .rule-card {
  border-color: rgba(0, 212, 255, 0.3);
}

.field { margin-bottom: 14px; }

.field label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: rgba(4, 12, 28, 0.85);
  color: var(--text-primary);
  font-family: 'Consolas', monospace;
  font-size: 13px;
  outline: none;
  transition: 0.2s;
}

.field input[type="text"]:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
}

.field-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.4;
}

.presets { margin-bottom: 14px; }

.presets-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.preset-row { display: flex; flex-wrap: wrap; gap: 6px; }

.preset-btn {
  font-family: 'Rajdhani', sans-serif;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.4px; text-transform: uppercase;
  padding: 6px 12px; border-radius: 8px;
  border: 1px solid var(--card-border);
  background: rgba(4, 12, 28, 0.85);
  color: var(--text-muted); cursor: pointer;
  transition: 0.2s;
}

.preset-btn:hover {
  color: var(--cyan);
  border-color: rgba(0, 212, 255, 0.35);
  background: rgba(0, 212, 255, 0.08);
}

/* Main panel */
.panel-main { padding: 18px; min-height: 420px; display: flex; flex-direction: column; }

.drop-zone {
  border: 2px dashed rgba(0, 212, 255, 0.28);
  border-radius: 12px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: 0.2s ease;
  background: rgba(4, 12, 28, 0.35);
  outline: none;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.drag-over {
  border-color: var(--cyan);
  background: rgba(0, 212, 255, 0.06);
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.12);
}

.drop-zone.has-files {
  padding: 18px 20px;
}

.drop-zone.has-files .drop-icon { font-size: 22px; margin-bottom: 6px; }
.drop-zone.has-files .drop-title { font-size: 13px; }
.drop-zone.has-files .drop-hint { display: none; }

.drop-icon {
  font-size: 36px;
  color: var(--cyan);
  margin-bottom: 12px;
  opacity: 0.85;
}

.drop-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px; font-weight: 700;
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}

.drop-hint { font-size: 12px; color: var(--text-muted); }

.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  margin: 16px 0 12px;
  padding-top: 4px;
}

.toolbar-stats {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--text-muted);
}

.stat-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: rgba(0, 212, 255, 0.4);
}

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

.btn {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.4px; text-transform: uppercase;
  padding: 9px 16px; border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer; transition: 0.2s ease;
  display: inline-flex; align-items: center; gap: 8px;
}

.btn-ghost {
  background: rgba(4, 12, 28, 0.85);
  border-color: var(--card-border);
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(0, 212, 255, 0.3);
}

.btn-primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #041018;
  box-shadow: 0 0 20px var(--cyan-glow);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 28px rgba(0, 212, 255, 0.45);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.4; cursor: not-allowed;
  box-shadow: none; transform: none;
}

.file-list-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.file-list-header {
  display: grid;
  grid-template-columns: 1fr 28px 1fr;
  gap: 8px;
  padding: 0 12px 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.file-list {
  list-style: none;
  overflow-y: auto;
  max-height: min(48vh, 420px);
  padding-right: 4px;
}

.file-list::-webkit-scrollbar { width: 6px; }
.file-list::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.25);
  border-radius: 99px;
}

.file-item {
  display: grid;
  grid-template-columns: 1fr 28px 1fr auto auto;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 12px;
  transition: 0.15s;
}

.file-item:hover {
  background: rgba(0, 212, 255, 0.04);
  border-color: rgba(0, 190, 255, 0.12);
}

.file-item + .file-item { margin-top: 4px; }

.file-name {
  font-family: 'Consolas', monospace;
  word-break: break-all;
  line-height: 1.35;
}

.file-name.original { color: var(--text-muted); }
.file-name.stripped { color: var(--text-primary); }

.file-name.unchanged { color: var(--text-muted); opacity: 0.7; }

.file-arrow {
  text-align: center;
  color: var(--cyan);
  opacity: 0.6;
  font-size: 11px;
}

.file-badge {
  font-family: 'Rajdhani', sans-serif;
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.4px; text-transform: uppercase;
  padding: 3px 8px; border-radius: 6px;
  white-space: nowrap;
}

.file-badge.changed {
  background: rgba(0, 186, 124, 0.15);
  color: var(--success);
  border: 1px solid rgba(0, 186, 124, 0.3);
}

.file-badge.same {
  background: rgba(138, 164, 196, 0.1);
  color: var(--text-muted);
  border: 1px solid rgba(138, 164, 196, 0.2);
}

.file-badge.warn {
  background: rgba(245, 166, 35, 0.12);
  color: var(--warning);
  border: 1px solid rgba(245, 166, 35, 0.3);
}

.file-remove {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  padding: 4px 6px; border-radius: 6px;
  transition: 0.15s;
}

.file-remove:hover { color: var(--danger); background: rgba(255, 77, 106, 0.1); }

.empty-state {
  flex: 1;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 13px;
  padding: 40px 20px;
  opacity: 0.7;
}

.empty-state i { font-size: 32px; opacity: 0.5; }

.empty-state.hidden { display: none; }

.hero-lead strong {
  color: var(--cyan);
  font-weight: 600;
}

/* Footer */
.footer {
  margin-top: 32px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 18px 16px 8px;
  border-top: 1px solid rgba(0, 190, 255, 0.14);
}

.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  animation: footerIconPulse 4s ease-in-out infinite;
}

.footer-social-link i { font-size: 18px; transition: transform 0.25s ease; }
.footer-social-link span { color: rgba(255, 255, 255, 0.85); }

.footer-social-link:hover {
  transform: translateY(-3px) scale(1.04);
  animation: none;
}

.footer-social-link:hover i { transform: scale(1.15); }

.footer-social-link--discord {
  border-color: rgba(88, 101, 242, 0.45);
  color: #5865f2;
  box-shadow: 0 0 20px rgba(88, 101, 242, 0.12);
  animation-delay: 0s;
}

.footer-social-link--discord:hover {
  background: rgba(88, 101, 242, 0.18);
  box-shadow: 0 6px 28px rgba(88, 101, 242, 0.35);
  border-color: rgba(88, 101, 242, 0.7);
}

.footer-social-link--email {
  border-color: rgba(0, 212, 255, 0.4);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
  animation-delay: 0.6s;
}

.footer-social-link--email:hover {
  background: rgba(0, 212, 255, 0.12);
  box-shadow: 0 6px 28px rgba(0, 212, 255, 0.3);
  border-color: rgba(0, 212, 255, 0.65);
}

.footer-social-link--web {
  border-color: rgba(167, 139, 250, 0.4);
  color: #a78bfa;
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.1);
  animation-delay: 1.2s;
}

.footer-social-link--web:hover {
  background: rgba(167, 139, 250, 0.14);
  box-shadow: 0 6px 28px rgba(167, 139, 250, 0.32);
  border-color: rgba(167, 139, 250, 0.65);
}

@keyframes footerIconPulse {
  0%, 100% { box-shadow: 0 0 16px rgba(255, 255, 255, 0.04); }
  50% { box-shadow: 0 0 24px rgba(255, 255, 255, 0.08); }
}

.footer-copy { margin: 0; }
.footer a { color: var(--cyan); text-decoration: none; }
.footer a:hover { text-decoration: none; }
.footer-social-link:hover span { text-decoration: none; }

.footer-data {
  font-size: 11px;
  color: var(--text-muted);
  margin: 0;
}

.footer-data i { color: var(--cyan); }

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  justify-content: center;
  align-items: flex-start;
  z-index: 9999;
  overflow-y: auto;
  padding: 40px 16px;
}

.modal-box {
  background: linear-gradient(165deg, rgba(6, 22, 48, 0.97) 0%, rgba(5, 10, 20, 0.99) 100%);
  border: 1px solid var(--card-border);
  color: #fff;
  width: 680px;
  max-width: 95%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 0;
  border-radius: 16px;
  position: relative;
  animation: pop 0.2s ease;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 212, 255, 0.08);
}

.changelog-box { max-width: 560px; max-height: 85vh; overflow-y: auto; }

.help-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(135deg, rgba(0, 80, 160, 0.25), transparent);
}

.help-header h2 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 26px;
  margin-bottom: 6px;
}

.help-header p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.changelog-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 16px 20px 24px;
}

.changelog-entry {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(4, 12, 28, 0.5);
}

.changelog-entry.current {
  border-color: rgba(0, 212, 255, 0.45);
  background: rgba(0, 212, 255, 0.06);
}

.changelog-ver {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.ver-tag {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 6px;
  background: var(--cyan);
  color: #041018;
}

.changelog-entry:not(.current) .ver-tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.ver-date {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.changelog-entry h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.changelog-entry ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.55;
}

.changelog-entry li { margin-bottom: 4px; }
.changelog-entry li strong { color: var(--text-primary); font-weight: 600; }

.closeModal {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
}

.closeModal:hover {
  color: #fff;
  background: rgba(245, 0, 0, 0.25);
  border-color: #f50000;
}

@keyframes pop {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-box::-webkit-scrollbar { width: 6px; }
.modal-box::-webkit-scrollbar-thumb {
  background: linear-gradient(240deg, var(--cyan), rgba(0, 0, 0, 0.5));
  border-radius: 10px;
}

/* Responsive */
@media (max-width: 820px) {
  .workspace { grid-template-columns: 1fr; }
  .panel-main { min-height: 360px; }
  .file-list-header { display: none; }
  .file-item {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }
  .file-arrow { display: none; }
  .file-name.stripped { grid-column: 1; }
  .file-item .file-badge,
  .file-item .file-remove { grid-row: 1 / 3; }
}