:root {
    --bg: #1a1d23;
    --bg-panel: #21252e;
    --bg-card: #272b35;
    --bg-input: #1a1d23;
    --border: #363c4a;
    --border-focus: #5b8ef0;
    --accent: #5b8ef0;
    --accent-red: #e05c5c;
    --accent-green: #4caf7d;
    --accent-gold: #d4a843;
    --accent-purple: #9b7fe8;
    --text: #d8dce8;
    --text-secondary: #afb6c5;
    --text-muted: #989da8;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; font-size: 14px; line-height: 1.5; min-height: 100vh; }
  .container { max-width: 1400px; margin: 0 auto; padding: 20px 16px; }

  header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
  header h1 { font-size: 18px; font-weight: 600; }
  header h1 span { color: var(--accent); }
  .header-meta { display: flex; align-items: center; gap: 10px; margin-left: auto; }
  .header-version { font-size: 12px; color: var(--text-muted); }

  /* Class + Inspiration bar */
  .config-bar { display: flex; gap: 10px; margin-bottom: 16px; margin-top: 14px; align-items: flex-end; flex-wrap: wrap; background: var(--bg-card); border: 1px solid var(--border-focus); border-radius: 8px; padding: 14px; box-shadow: 0 6px 18px rgba(20,26,40,0.55); }
  .config-bar .field { min-width: 180px; }
  .config-bar .field label { color: var(--text); font-weight: 700; }
  .config-bar select, .config-bar input { background: var(--bg-input); border-color: var(--border); color: var(--text); }

  .main-grid { display: grid; grid-template-columns: 410px 1fr; gap: 16px; align-items: start; }

  /* Panels */
  .panel { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 8px; overflow: visible; }
  .panel-header { padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--bg-card); display: flex; align-items: center; justify-content: space-between; }
  .panel-header h2 { font-size: 13px; font-weight: 600; }
  .panel-body { padding: 14px; }

  .section-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); margin-top: 18px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
  .section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }
  .section-label:first-child { margin-top: 0; }

  .input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
  .input-row.single { grid-template-columns: 1fr; }
  .input-row.triple { grid-template-columns: 1fr 1fr 1fr; }

  .field { display: flex; flex-direction: column; gap: 4px; }
  .field label { font-size: 12px; color: var(--text-secondary); display: flex; align-items: center; gap: 4px; }

  .tag-blue { color: var(--accent); font-size: 11px; font-weight: 600; }
  .tag-red  { color: var(--accent-red); font-size: 11px; font-weight: 600; }
  .tag-gold { color: var(--accent-gold); font-size: 11px; font-weight: 600; }

  input[type="number"], input[type="text"], select {
    background: var(--bg-input); border: 1px solid var(--border); border-radius: 5px;
    color: var(--text); font-family: inherit; font-size: 13px; padding: 6px 8px; width: 100%;
    transition: border-color 0.15s; -moz-appearance: textfield;
  }
  input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
  input:focus, select:focus { outline: none; border-color: var(--border-focus); }
  input[readonly] { background: var(--readonly-bg); color: var(--accent); cursor: default; opacity: 0.85; }
  select option { background: var(--bg-card); }

  .type-toggle { display: flex; border: 1px solid var(--border); border-radius: 5px; overflow: hidden; margin-bottom: 8px; }
  .type-toggle button { flex: 1; padding: 7px 10px; background: transparent; border: none; color: var(--text-muted); font-family: inherit; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.15s; }
  .type-toggle button + button { border-left: 1px solid var(--border); }
  .type-toggle button.active-phys { background: rgba(224,92,92,0.15); color: var(--accent-red); }
  .type-toggle button.active-mag  { background: rgba(91,142,240,0.15); color: var(--accent); }

  .res-tags { display: flex; gap: 6px; margin-bottom: 4px; }
  .res-tag { font-size: 11px; padding: 2px 7px; border-radius: 3px; font-weight: 500; }
  .res-tag.phys { background: rgba(224,92,92,0.12); color: var(--accent-red); border: 1px solid rgba(224,92,92,0.2); }
  .res-tag.mag { background: rgba(91,142,240,0.12); color: var(--accent); border: 1px solid rgba(91,142,240,0.2); cursor: pointer; font-family: inherit; transition: all 0.15s; }
  .res-tag.mag.inactive { background: rgba(255,255,255,0.04); color: var(--text-muted); border-color: var(--border); }

  .note { font-size: 12px; color: var(--text-muted); background: rgba(255,255,255,0.02); border-left: 2px solid var(--border); padding: 5px 8px; border-radius: 0 4px 4px 0; margin-top: 6px; line-height: 1.5; }
  .note .hl { color: var(--accent); }

  .tip { position: relative; display: inline-flex; cursor: help; }
  .tip-icon { display: inline-flex; align-items: center; justify-content: center; width: 14px; height: 14px; border-radius: 50%; border: 1px solid var(--text-muted); color: var(--text-muted); font-size: 9px; font-style: italic; font-family: Georgia, serif; margin-left: 3px; flex-shrink: 0; }
  .tip-box { display: none; position: absolute; bottom: calc(100% + 5px); left: 50%; transform: translateX(-50%); width: 220px; background: #2c3140; border: 1px solid var(--border); border-radius: 5px; padding: 7px 9px; font-size: 12px; color: var(--text-secondary); line-height: 1.5; z-index: 50; pointer-events: none; text-align: left; font-style: normal; font-family: inherit; }
  .tip:hover .tip-box { display: block; }

  .formula-box { background: var(--bg-input); border: 1px solid var(--border); border-radius: 5px; padding: 10px 12px; font-size: 12px; color: var(--text-secondary); line-height: 1.9; font-family: 'Consolas', 'SF Mono', monospace; white-space: pre-wrap; word-break: break-word; }
  .formula-box .fb { color: var(--accent); }
  .formula-box .fg { color: var(--accent-green); }
  .formula-box .fo { color: var(--accent-gold); }
  .formula-box .fp { color: var(--accent-purple); }

  .matk-breakdown { font-size: 12px; color: var(--text-muted); font-family: 'Consolas', 'SF Mono', monospace; padding: 5px 8px; background: var(--bg-input); border-radius: 4px; border: 1px solid var(--border); margin-top: 4px; line-height: 1.8; overflow-x: auto;}
  .matk-breakdown-wrap { }
  .matk-breakdown-wrap::after { content: ''; position: absolute; right: 0; top: 0; bottom: 0; width: 24px; background: linear-gradient(to right, transparent, var(--bg-panel)); pointer-events: none; border-radius: 0 4px 4px 0; }
  .matk-breakdown .hl { color: var(--accent); }

  /* Substat row: stat input | base% input | arrow | total% */
  .substat-row { display: grid; grid-template-columns: 1fr 56px 18px 72px; gap: 6px; align-items: end; margin-bottom: 8px; }
  .substat-arrow { font-size: 12px; color: var(--text-muted); text-align: center; padding-bottom: 7px; }
  .substat-pct { background: var(--readonly-bg); border: 1px solid var(--border); border-radius: 5px; color: var(--accent-gold); font-family: 'Consolas', 'SF Mono', monospace; font-size: 13px; padding: 6px 8px; text-align: right; white-space: nowrap; }
  input.substat-base { background: var(--bg-input); border: 1px solid var(--border); border-radius: 5px; color: var(--text-secondary); font-family: 'Consolas', 'SF Mono', monospace; font-size: 12px; padding: 6px 6px; width: 100%; text-align: right; -moz-appearance: textfield; }
  input.substat-base::-webkit-inner-spin-button { -webkit-appearance: none; }
  input.substat-base:focus { outline: none; border-color: var(--border-focus); }

  /* Summary stat boxes */
  .summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .stat-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; text-align: center; }
  .stat-box-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
  .stat-box-value { font-size: 17px; font-weight: 600; font-family: 'Consolas', 'SF Mono', monospace; color: var(--accent-gold); }
  .stat-box-value.blue { color: var(--accent); }
  .stat-box-value.red  { color: var(--accent-red); }

  /* Lucky Strike dedicated panel */
  .lucky-panel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .lucky-stat-box { background: var(--bg-card); border: 1px solid rgba(155,127,232,0.25); border-radius: 6px; padding: 10px 12px; text-align: center; }
  .lucky-stat-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
  .lucky-stat-value { font-size: 18px; font-weight: 600; font-family: 'Consolas', 'SF Mono', monospace; color: var(--accent-purple); }
  .lucky-stat-value.crit { color: var(--accent-red); }
  .lucky-stat-value.avg  { color: var(--accent-green); }

  /* Imagine slots */
  .imagine-slots { display: flex; flex-direction: column; gap: 10px; }
  .imagine-slot { display: grid; grid-template-columns: 1fr 80px; gap: 8px; align-items: end; }

  /* Right column */
  .right-col { display: flex; flex-direction: column; gap: 14px; }

  /* Skill cards */
  .skills-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
  .skill-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 12px 14px; }
  .skill-card-header { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
  .skill-effects { margin-top: 8px; border-top: 1px solid var(--border); padding-top: 8px; }
  .skill-effect-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
  .skill-effect-row select, .skill-effect-row input { font-size: 12px; padding: 4px 6px; }
  .skill-effect-remove { border: 1px solid var(--border); background: transparent; color: var(--text); border-radius: 4px; padding: 2px 6px; cursor: pointer; }
  .skill-effect-remove:hover { border-color: var(--accent); color: var(--accent); }
  .skill-name-input { flex: 1; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--text); font-family: inherit; font-size: 14px; font-weight: 600; padding: 2px 0 4px; }
  .skill-name-input:focus { outline: none; border-bottom-color: var(--accent); }
  .skill-name-input::placeholder { color: var(--text-muted); font-weight: 400; }
  .btn-remove { background: none; border: 1px solid var(--border); color: var(--text-muted); width: 24px; height: 24px; border-radius: 4px; cursor: pointer; font-size: 13px; transition: all 0.15s; flex-shrink: 0; }
  .btn-remove:hover { border-color: var(--accent-red); color: var(--accent-red); }

  /* Module cards */
  .modules-list { display: flex; flex-direction: column; gap: 1px; margin-bottom: 10px; }
  .module-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; }
  .module-card-header { display: flex; align-items: center; gap: 4px; }
  .module-select-container { position: relative; flex: 1; min-width: 140px; }
  .module-search-input { width: 100%; background: var(--bg-input); border: 1px solid var(--border); border-radius: 4px; color: var(--text); padding: 6px 8px; font-family: inherit; font-size: 13px; cursor: pointer; }
  .module-search-input:focus { outline: none; border-color: var(--accent); }
  .module-dropdown { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px; max-height: 200px; overflow-y: auto; z-index: 1000; display: none; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
  .module-dropdown .module-option { padding: 8px 12px; cursor: pointer; border: none; background: transparent; color: var(--text); width: 100%; text-align: left; }
  .module-dropdown .module-option:hover { background: var(--bg-hover); }
  .module-level-input { width: 60px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 4px; color: var(--text); padding: 6px 8px; font-family: inherit; font-size: 13px; text-align: center; }
  .module-level-input:focus { outline: none; border-color: var(--accent); }

  .skill-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .skill-result { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; padding: 8px 10px; background: var(--bg-input); border-radius: 5px; border: 1px solid var(--border); }
  .result-item { display: flex; flex-direction: column; gap: 2px; }
  .result-label { font-size: 11px; color: var(--text-muted); }
  .result-value { font-size: 15px; font-weight: 600; font-family: 'Consolas', 'SF Mono', monospace; color: var(--accent-gold); }
  .radio-group { display: flex; gap: 12px; align-items: center; }
  .radio-group label { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--text); cursor: pointer; }
  .radio-group input[type="radio"] { margin: 0; }

  .btn-add-skill { display: flex; padding: 9px; background: transparent; border: 1px dashed var(--accent); border-radius: 6px; color: var(--accent); font-family: inherit; font-size: 13px; cursor: pointer; transition: all 0.15s; }
  .btn-add-skill:hover { border-color: var(--accent); background: rgba(91,142,240,0.06); }

  .btn-import-skills { width: auto; padding: 8px 10px; background: transparent; border: 1px dashed #4CAF50; border-radius: 6px; color: #4CAF50; font-family: inherit; font-size: 13px; cursor: pointer; transition: all 0.15s; }
  .btn-import-skills:hover { border-color: #4CAF50; background: rgba(76,175,80,0.06); }

  .btn-export-skills { width: auto; padding: 8px 10px; background: transparent; border: 1px dashed #2196F3; border-radius: 6px; color: #2196F3; font-family: inherit; font-size: 13px; cursor: pointer; transition: all 0.15s; }
  .btn-export-skills:hover { border-color: #2196F3; background: rgba(33,150,243,0.06); }

  .checkbox-group { display: flex; flex-direction: column; gap: 6px; margin: 8px 0; }
  .cb-row { display: flex; align-items: center; gap: 8px; }
  .cb-row input[type="checkbox"] { width: 14px; height: 14px; accent-color: var(--accent-purple); cursor: pointer; flex-shrink: 0; }
  .cb-row label { font-size: 12px; color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; gap: 4px; }

  /* Color-coded formula dots */
  .dot { display:inline-block; width:7px; height:7px; border-radius:50%; margin-right:3px; vertical-align:middle; flex-shrink:0; }
  .dot-matk      { background: var(--accent); }
  .dot-refined   { background: #f39c12; }
  .dot-elemental { background: #06b6d4; }
  .dot-vers      { background: var(--accent-purple); }
  .dot-ls        { background: #ffb86c; }
  .dot-red       { background: #e05c5c; }
  .dot-green     { background: #4caf7d; }
  .dot-purple    { background: #9b7fe8; }
  .dot-cyan      { background: #06b6d4; }
  .dot-mag       { background: #e6e358; }
  .dot-orange    { background: #e8874a; }
  .dot-dream     { background: #ff6b9d; }
  
  .fr { color: var(--accent-red); font-weight: 600; }
  .fwhite { color: #ffffff; font-weight: 600; }
  .fref { color: #f39c12; font-weight: 600; }
  .felem { color: #06b6d4; font-weight: 600; }
  .fvers { color: var(--accent-purple); font-weight: 600; }
  .fmag { color: #e6e358; font-weight: 600; }
  .fls { color: #ffb86c; font-weight: 600; }
  .fdream { color: #ff6b9d; font-weight: 600; }
  .fb { color: var(--accent); font-weight: 600; }

  .formula-box, #formula-preview { color: #ffffff; }
  .skill-formula { color: #ffffff; }

  /* Skill formula box inside card */
  .skill-formula { background:var(--bg-input); border:1px solid var(--border); border-radius:4px; padding:7px 10px; font-size:11px; color:var(--text-muted); line-height:1.8; font-family:'Consolas','SF Mono',monospace; white-space:pre-wrap; margin-top:8px; }
  .skill-formula .fb { color:var(--accent); }
  .skill-formula .fg { color:#4caf7d; }
  .skill-formula .fo { color:#d4a843; }
  .skill-formula .fp { color:#9b7fe8; }
  @media (max-width: 1100px) { .main-grid { grid-template-columns: 1fr; } .summary-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 600px) { .skill-result { grid-template-columns: 1fr 1fr; } .lucky-panel-grid { grid-template-columns: 1fr; } }

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--accent-red);
}

.modal-body {
  padding: 20px;
}

.modal-instructions {
  margin-bottom: 15px;
}

.modal-instructions ol {
  margin: 0;
  padding-left: 20px;
}

.modal-instructions li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  line-height: 1.5;
}