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

/* Remove number input spinners */
input[type=number] { -moz-appearance: textfield; }
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

:root {
  --bg:        #0d1117;
  --bg-card:   #161b22;
  --bg-input:  #0d1117;
  --border:    #30363d;
  --border-hl: #484f58;
  --accent:    #58a6ff;
  --accent-dim:#1f6feb;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --purple:    #bc8cff;
  --text:      #c9d1d9;
  --text-dim:  #8b949e;
  --text-bright:#f0f6fc;
  --radius:    10px;
  --radius-sm: 6px;
  --shadow:    0 1px 3px rgba(0,0,0,.4);
  --font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

html { font-size: 15px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === Layout === */
.app { max-width: 820px; margin: 0 auto; padding: 0 16px 48px; }
.main { display: flex; flex-direction: column; gap: 16px; }

/* === Header === */
.header { text-align: center; padding: 40px 0 24px; }
.header-title {
  font-size: 1.6rem; letter-spacing: .15em; font-weight: 800;
  color: var(--text-bright);
  text-transform: uppercase;
}
.header-subtitle {
  font-size: 1.15rem; color: var(--accent); margin-top: 4px; font-weight: 600;
}
.header-desc {
  font-size: .85rem; color: var(--text-dim); margin-top: 8px; max-width: 520px; margin-inline: auto;
}

/* === Cards === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: transparent;
}
.card-header h2 { font-size: 1rem; font-weight: 600; color: var(--text-bright); }
.card-body { padding: 20px; }

/* Toggle headers */
.card-toggle {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  cursor: pointer; border: none; border-bottom: 1px solid transparent; color: var(--text-bright);
  font: inherit; text-align: left; background: transparent;
  transition: background .15s;
}
.card-toggle:hover { background: rgba(255,255,255,.03); }
.card-toggle.open { border-bottom-color: var(--border); }
.toggle-icon {
  font-size: .8rem; color: var(--text-dim); transition: transform .2s;
}
.card-toggle.open .toggle-icon { transform: rotate(90deg); }

/* Hidden utility */
.hidden { display: none !important; }

/* === Profession Combobox === */
.prof-combo { position: relative; }
.prof-combo-input {
  width: 100%; padding: 10px 40px 10px 14px; font-size: 1rem; box-sizing: border-box;
  background: var(--bg-input); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  cursor: pointer;
}
.prof-combo-input::placeholder { color: var(--text-dim); }
.prof-combo-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(88,166,255,.15); cursor: text; }
.prof-combo-chevron {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  width: 12px; height: 8px; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b949e' stroke-width='1.5' fill='none'/%3E%3C/svg%3E") no-repeat center;
  transition: transform .18s ease;
}
.prof-combo.open .prof-combo-chevron { transform: translateY(-50%) rotate(180deg); }
.prof-combo-dropdown {
  position: fixed; z-index: 9999;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); max-height: 300px; overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  animation: prof-combo-in .13s ease;
}
@keyframes prof-combo-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.prof-combo-group + .prof-combo-group { border-top: 1px solid var(--border); }
.prof-combo-grouplabel {
  padding: 8px 14px 3px; font-size: .7rem; text-transform: uppercase;
  letter-spacing: .07em; color: var(--accent); font-weight: 600; opacity: .75;
}
.prof-combo-option {
  padding: 8px 16px; cursor: pointer; color: var(--text); font-size: .95rem;
  transition: background .08s;
}
.prof-combo-option.is-selected { color: var(--accent); }
.prof-combo-option:hover,
.prof-combo-option.is-highlighted { background: rgba(88,166,255,.12); }
.prof-combo-option.is-selected.is-highlighted { background: rgba(88,166,255,.18); }
.prof-combo-empty { padding: 14px 16px; color: var(--text-dim); font-style: italic; font-size: .9rem; }

/* === Requirements === */
.requirements-panel { margin-top: 16px; }
.req-title { font-size: 1.05rem; color: var(--text-bright); margin-bottom: 4px; }
.req-hint { font-size: .78rem; color: var(--text-dim); margin-bottom: 12px; }
.req-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.req-chip {
  display: flex; align-items: center; gap: 6px;
  background: rgba(88,166,255,.08); border: 1px solid rgba(88,166,255,.2);
  border-radius: 20px; padding: 5px 12px 5px 14px; font-size: .88rem;
}
.req-chip-name { color: var(--text-dim); text-transform: capitalize; }
.req-chip-val {
  width: 52px; padding: 2px 6px; text-align: center;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 4px; color: var(--accent); font-weight: 600;
  font-size: .88rem;
}
.req-chip-val:focus { border-color: var(--accent); outline: none; }

/* Analysis */
.analysis-panel { margin-top: 16px; }
.analysis-panel h4 { font-size: .9rem; color: var(--text-dim); margin-bottom: 8px; }
.analysis-section { margin-bottom: 10px; }
.analysis-label { font-size: .8rem; color: var(--text-dim); margin-bottom: 4px; }
.analysis-list { display: flex; flex-wrap: wrap; gap: 4px; }
.analysis-grouped { display: flex; flex-direction: column; gap: 6px; }
.analysis-cat-group { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.analysis-cat-header { font-size: .78rem; font-weight: 600; min-width: 85px; }
.analysis-cat-items { display: flex; flex-wrap: wrap; gap: 4px; }
.analysis-tag {
  font-size: .75rem; padding: 2px 8px; border-radius: 12px;
}
.analysis-tag.inherent { background: rgba(63,185,80,.12); color: var(--green); border: 1px solid rgba(63,185,80,.25); }
.analysis-tag.avoidable { background: rgba(210,153,34,.08); color: var(--yellow); border: 1px solid rgba(210,153,34,.2); }

/* Info box */
.info-box {
  font-size: .8rem; color: var(--text-dim); line-height: 1.5;
  background: rgba(88,166,255,.06); border: 1px solid rgba(88,166,255,.15);
  border-radius: var(--radius-sm); padding: 10px 14px; margin-bottom: 12px;
}
.info-box strong { color: var(--text); }

/* === Inventory === */
.inventory-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 14px;
}
.checkbox-label {
  display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: .9rem;
}
.checkbox-label input[type=checkbox] { accent-color: var(--accent); width: 16px; height: 16px; }
.toolbar-actions { display: flex; gap: 6px; }

.inventory-section { margin-bottom: 18px; }
.inv-section-title { font-size: .92rem; color: var(--accent); margin-bottom: 10px; }
.inventory-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
}
.inv-item {
  display: flex; flex-direction: column; align-items: center;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 6px; text-align: center;
  transition: border-color .15s;
}
.inv-item:hover { border-color: var(--border-hl); }
.inv-item-img {
  width: 44px; height: 44px; object-fit: contain; border-radius: 6px;
  background: rgba(255,255,255,.03); margin-bottom: 4px;
}
.inv-item-fallback {
  width: 44px; height: 44px; border-radius: 6px;
  background: rgba(255,255,255,.05); display: flex; align-items: center;
  justify-content: center; font-size: 1.1rem; color: var(--text-dim); margin-bottom: 4px;
}
.inv-item-name { font-size: .72rem; color: var(--text-dim); margin-bottom: 4px; line-height: 1.2; min-height: 2.4em; }
.inv-item-input {
  width: 54px; padding: 3px 4px; text-align: center;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); font-size: .82rem;
}
.inv-item-input::placeholder { color: var(--text-dim); font-size: .75rem; }
.inv-item-input:focus { border-color: var(--accent); outline: none; }

.inventory-downloads {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border);
}
.download-label { font-size: .82rem; color: var(--text-dim); }
.upload-label { cursor: pointer; }
.file-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* === Edit Data Tables === */
.edit-toolbar {
  display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.edit-toolbar-group {
  display: flex; align-items: center; gap: 6px;
}
.edit-tabs { display: flex; gap: 2px; margin-bottom: 14px; }
.tab-btn {
  padding: 7px 14px; font-size: .82rem; border: none; border-radius: 6px 6px 0 0;
  background: transparent; color: var(--text-dim); cursor: pointer;
  border-bottom: 2px solid transparent; transition: .15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); background: rgba(88,166,255,.06); }
.edit-tab-content { display: none; }
.edit-tab-content.active { display: block; }
.table-wrap { overflow-x: auto; }
.edit-table {
  width: 100%; border-collapse: collapse; font-size: .8rem;
}
.edit-table th {
  padding: 6px 8px; text-align: left; font-weight: 600;
  color: var(--text-dim); border-bottom: 1px solid var(--border);
  white-space: nowrap; position: sticky; top: 0; background: var(--bg-card);
}
.edit-table td {
  padding: 4px 6px; border-bottom: 1px solid rgba(48,54,61,.5);
}
.edit-table td:first-child { color: var(--text-bright); font-weight: 500; white-space: nowrap; }
.edit-table input {
  width: 52px; padding: 2px 4px; text-align: right;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 3px; color: var(--text); font-size: .8rem;
}
.edit-name-input { width: 120px !important; text-align: left !important; }
.edit-cat-input { width: 100px !important; }
.edit-table input:focus { border-color: var(--accent); outline: none; }

.btn-add {
  margin-top: 8px; background: transparent; color: var(--accent);
  border: 1px dashed var(--border); width: 100%;
}
.btn-add:hover { border-color: var(--accent); background: rgba(88,166,255,.06); }
.btn-del-row {
  background: none; border: none; color: var(--red); cursor: pointer;
  font-size: .85rem; padding: 2px 6px; opacity: .6;
}
.btn-del-row:hover { opacity: 1; }

/* === Apply Solution === */
.btn-apply {
  background: var(--green); color: #000; font-weight: 600;
  padding: 10px 24px; border-radius: 8px; width: 100%;
}
.btn-apply:hover { background: #56d364; }

/* === Buttons === */
.btn {
  padding: 8px 18px; border: none; border-radius: var(--radius-sm);
  font-size: .88rem; font-weight: 600; cursor: pointer;
  transition: background .15s, transform .1s;
}
.btn:active { transform: scale(.97); }
.btn-sm { padding: 5px 12px; font-size: .8rem; }
.btn-outline {
  background: transparent; color: var(--text-dim);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--text-dim); color: var(--text); }

.solve-container { display: flex; justify-content: center; gap: 12px; padding: 6px 0; }
.btn-solve {
  background: var(--accent-dim); color: #fff; font-size: 1.05rem;
  padding: 12px 36px; border-radius: 8px; letter-spacing: .02em;
}
.btn-solve:hover:not(:disabled) { background: var(--accent); }
.btn-solve:disabled { opacity: .4; cursor: not-allowed; }
.btn-cancel { background: var(--red); color: #fff; padding: 12px 28px; border-radius: 8px; font-size: 1.05rem; }
.btn-cancel:hover { background: #da3633; }
.btn-pause { background: var(--yellow); color: #000; padding: 12px 28px; border-radius: 8px; font-size: 1.05rem; font-weight: 600; }
.btn-pause:hover { background: #e3b341; }

/* === Settings === */
.settings-grid {
  display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; align-items: center;
}
.settings-grid label { font-size: .88rem; color: var(--text-dim); }
.input-sm {
  width: 80px; padding: 5px 8px; font-size: .88rem;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
}
.input-sm:focus { border-color: var(--accent); outline: none; }
.hint { font-size: .78rem; color: var(--text-dim); }

/* === Progress === */
.progress-bar-wrap {
  width: 100%; height: 8px; background: rgba(255,255,255,.06);
  border-radius: 4px; overflow: hidden; margin-bottom: 10px;
}
.progress-bar {
  height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  border-radius: 4px; transition: width .3s ease;
}
.progress-stats {
  display: flex; gap: 20px; font-size: .85rem; color: var(--text-dim);
  flex-wrap: wrap;
}
.progress-best {
  margin-top: 8px; font-size: .9rem; color: var(--yellow); min-height: 1.5em;
}
/* === Results === */
.result-summary {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px;
  padding: 12px 16px; background: rgba(63,185,80,.08);
  border: 1px solid rgba(63,185,80,.2); border-radius: 8px;
}
.result-summary.no-solution {
  background: rgba(248,81,73,.08); border-color: rgba(248,81,73,.2);
}
.result-badge {
  font-size: 1.05rem; font-weight: 600; color: var(--green);
}
.result-summary.no-solution .result-badge { color: var(--red); }
.result-section { margin-bottom: 16px; }
.result-section-title { font-size: .88rem; color: var(--text-dim); margin-bottom: 8px; font-weight: 600; }

.recipe-items { display: flex; flex-wrap: wrap; gap: 10px; }
.recipe-item {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px 8px 8px;
}
.recipe-item-img { width: 36px; height: 36px; object-fit: contain; border-radius: 5px; background: rgba(255,255,255,.03); }
.recipe-item-fallback {
  width: 36px; height: 36px; border-radius: 5px;
  background: rgba(255,255,255,.05); display: flex; align-items: center;
  justify-content: center; font-size: .9rem; color: var(--text-dim);
}
.recipe-item-count { font-weight: 700; color: var(--accent); font-size: .95rem; }
.recipe-item-name { font-size: .88rem; color: var(--text); }

.stats-table { width: 100%; font-size: .88rem; }
.stats-table td { padding: 3px 0; }
.stats-table .stat-name { color: var(--text-dim); text-transform: capitalize; width: 120px; }
.stats-table .stat-val { font-weight: 600; }
.stats-table .stat-ok { color: var(--green); }
.stats-table .stat-over { color: var(--accent); }
.stats-table .stat-miss { color: var(--red); }
.stats-table .stat-check { width: 24px; text-align: center; }

.side-effects { display: flex; flex-wrap: wrap; gap: 6px; }
.side-effect-tag {
  font-size: .78rem; padding: 2px 8px; border-radius: 12px;
  background: rgba(210,153,34,.08); color: var(--yellow); border: 1px solid rgba(210,153,34,.15);
}

.profession-list { display: flex; flex-direction: column; gap: 4px; }
.prof-item { display: flex; align-items: center; gap: 8px; font-size: .88rem; padding: 4px 0; }
.prof-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.prof-dot.target { background: var(--green); }
.prof-dot.inherent { background: var(--text-dim); }
.prof-dot.avoidable { background: var(--yellow); }
.prof-name { color: var(--text); }
.prof-tag { font-size: .72rem; color: var(--text-dim); margin-left: 4px; }

.search-time {
  margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border);
  font-size: .82rem; color: var(--text-dim);
}

/* === Eco Mode 3-way Switch === */
.eco-toggle-wrap { display: flex; justify-content: center; padding: 0 0 2px; }
.eco-3way {
  display: inline-flex; align-items: stretch;
  background: var(--border); border-radius: 9px; padding: 3px; gap: 2px;
}
.eco-seg {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 15px; border: none; border-radius: 7px;
  background: transparent; color: var(--text-dim);
  font-size: .83rem; font-family: var(--font);
  cursor: pointer; user-select: none;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.eco-seg:hover:not(.active) { background: rgba(255,255,255,.06); color: var(--text); }
.eco-seg.active {
  background: var(--bg-card); color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,.45);
}
.eco-seg[data-mode="1"].active { color: var(--green); }
.eco-seg[data-mode="2"].active { color: var(--accent); }
.recipe-item-pct { font-size: .75rem; color: var(--text-dim); margin-left: 2px; }

/* === Solution Navigation === */
.results-header { display: flex; align-items: center; justify-content: space-between; }
.solution-nav { display: flex; align-items: center; gap: 6px; }
.btn-sol-nav {
  background: rgba(88,166,255,.1); border: 1px solid rgba(88,166,255,.2);
  color: var(--accent); border-radius: 4px; padding: 2px 8px;
  font-size: 1rem; cursor: pointer; line-height: 1;
  transition: background .15s;
}
.btn-sol-nav:hover:not(:disabled) { background: rgba(88,166,255,.2); }
.btn-sol-nav:disabled { opacity: .3; cursor: not-allowed; }
.sol-nav-label { font-size: .82rem; color: var(--text-dim); min-width: 40px; text-align: center; }

/* === Collapsible Avoidable Professions === */
.avoidable-toggle {
  display: flex; align-items: center; gap: 6px;
  background: none; border: none; color: var(--yellow);
  font-size: .82rem; cursor: pointer; padding: 6px 0 4px;
  font-weight: 600; transition: color .15s;
}
.avoidable-toggle:hover { color: #e3b341; }
.avoidable-toggle-icon { font-size: .7rem; display: inline-block; transition: transform .2s; }
.avoidable-toggle.open .avoidable-toggle-icon { transform: rotate(90deg); }
.avoidable-list.collapsed { display: none; }

/* Analysis notes */
.analysis-note {
  font-size: .76rem; color: var(--text-dim); line-height: 1.45;
  margin-top: 6px; padding: 6px 10px;
  background: rgba(255,255,255,.03); border-left: 2px solid var(--border-hl);
  border-radius: 0 4px 4px 0;
}
.analysis-note-tip { border-left-color: var(--yellow); }

/* Timeout hint in results */
.timeout-hint { border-left: 3px solid var(--yellow); background: rgba(210,153,34,.06); }

/* === Resource Cost Badge === */
.resource-cost-badge { cursor: help; border-bottom: 1px dotted var(--text-dim); }

/* === Footer === */
.footer {
  text-align: center; padding: 32px 0 16px;
  font-size: .8rem; color: var(--text-dim);
}
.footer p { margin-bottom: 4px; }
.footer-note { font-size: .72rem; }
.footer-version { font-size: .68rem; color: var(--border-hl); margin-top: 4px; }

/* === Category Colors === */
.cat-engineer       { color: #f0883e; }
.cat-arts           { color: #d2a8ff; }
.cat-educator       { color: #58a6ff; }
.cat-agriculture    { color: #56d364; }
.cat-logistics      { color: #db8e00; }
.cat-military       { color: #f85149; }
.cat-science        { color: #79c0ff; }
.cat-healthcare     { color: #39d2c0; }
.cat-leadership     { color: #e3b341; }
.cat-explorer       { color: #bc8cff; }

/* === Responsive === */
@media (max-width: 600px) {
  html { font-size: 14px; }
  .app { padding: 0 10px 32px; }
  .header { padding: 24px 0 16px; }
  .header-title { font-size: 1.3rem; }
  .card-body { padding: 14px; }
  .inventory-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
  .btn-solve, .btn-cancel { font-size: .95rem; padding: 10px 24px; }
  .progress-stats { font-size: .78rem; gap: 12px; }
  .recipe-items { gap: 6px; }
  .recipe-item { padding: 6px 10px 6px 6px; }
  .settings-grid { grid-template-columns: 1fr; }
}