:root {
  --bg:#0d0f14; --surface:#13161d; --surface2:#1a1e28; --border:#252a38; --border2:#2f3547;
  --accent:#5b7fff; --accent2:#a78bfa; --accent3:#34d399; --warn:#f59e0b; --danger:#f87171;
  --text:#e8eaf0; --text2:#8b91a8; --text3:#555e7a;
  --mono:'DM Mono',monospace; --sans:'Syne',sans-serif;
  --radius:8px; --radius2:12px;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--text);font-family:var(--sans);min-height:100vh;display:flex;flex-direction:column;}

/* NAV */
nav{display:flex;align-items:center;padding:0 32px;height:56px;border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:100;}
.nav-logo{font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--text);margin-right:32px;text-transform:uppercase;}
.nav-logo span{color:var(--accent);}
.nav-tabs{display:flex;gap:4px;}
.nav-tab{padding:6px 14px;border-radius:var(--radius);font-size:13px;font-weight:600;color:var(--text2);cursor:pointer;transition:all .15s;border:none;background:none;font-family:var(--sans);}
.nav-tab:hover{color:var(--text);background:var(--surface2);}
.nav-tab.active{color:var(--accent);background:rgba(91,127,255,.12);}

/* PAGE */
.page{display:none;padding:36px 48px;max-width:1400px;margin:0 auto;width:100%;}
.page.active{display:block;}

/* STEPPER */
.stepper{display:flex;align-items:flex-start;margin-bottom:40px;}
.step{display:flex;flex-direction:column;align-items:center;flex:1;position:relative;gap:8px;}
.step:not(:last-child)::after{content:'';position:absolute;top:17px;left:calc(50% + 20px);right:calc(-50% + 20px);height:1px;background:var(--border2);z-index:0;}
.step.done::after{background:var(--accent);}
.step-num{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;border:1.5px solid var(--border2);background:var(--surface);color:var(--text3);flex-shrink:0;transition:all .2s;z-index:1;position:relative;}
.step.active .step-num{border-color:var(--accent);color:var(--accent);background:rgba(91,127,255,.1);}
.step.done .step-num{background:var(--accent);border-color:var(--accent);color:#fff;}
.step-label{font-size:11px;font-weight:600;color:var(--text3);text-align:center;white-space:nowrap;}
.step.active .step-label,.step.done .step-label{color:var(--text2);}

/* CARDS */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius2);padding:28px;}
.card-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);margin-bottom:16px;}

/* FORM */
textarea,input[type="text"]{width:100%;background:var(--surface2);border:1px solid var(--border2);border-radius:var(--radius);color:var(--text);font-family:var(--mono);font-size:13px;padding:12px 14px;outline:none;resize:vertical;transition:border-color .15s;}
textarea:focus,input:focus{border-color:var(--accent);}
textarea{min-height:200px;line-height:1.7;}
label{display:block;font-size:11px;font-weight:600;color:var(--text2);margin-bottom:6px;text-transform:uppercase;letter-spacing:.06em;}
.field{margin-bottom:18px;}

/* SEGMENT CONTROL (step 1 source picker) */
.seg-ctrl{display:inline-flex;background:var(--surface2);border:1px solid var(--border2);border-radius:var(--radius);padding:3px;gap:2px;margin-bottom:20px;}
.seg-btn{padding:7px 18px;border-radius:6px;font-family:var(--sans);font-size:12px;font-weight:700;color:var(--text2);cursor:pointer;border:none;background:none;transition:all .15s;text-transform:uppercase;letter-spacing:.04em;}
.seg-btn.active{background:var(--surface);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,.4);}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:var(--radius);font-family:var(--sans);font-size:12px;font-weight:700;cursor:pointer;border:none;transition:all .15s;text-transform:uppercase;letter-spacing:.05em;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:#4a6ef5;}
.btn-secondary{background:var(--surface2);color:var(--text2);border:1px solid var(--border2);}
.btn-secondary:hover{color:var(--text);background:var(--border);}
.btn-success{background:rgba(52,211,153,.15);color:var(--accent3);border:1px solid rgba(52,211,153,.3);}
.btn-success:hover{background:rgba(52,211,153,.25);}
.btn-warn{background:rgba(245,158,11,.15);color:var(--warn);border:1px solid rgba(245,158,11,.3);}
.btn-danger{background:rgba(248,113,113,.12);color:var(--danger);border:1px solid rgba(248,113,113,.25);}
.btn-sm{padding:5px 12px;font-size:11px;height:30px;line-height:1;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;box-sizing:border-box;}
.btn:disabled{opacity:.4;cursor:not-allowed;}

/* STEP NAV BAR — outside cards, below content */
.step-nav{display:flex;gap:10px;align-items:center;margin-top:24px;padding-top:20px;border-top:1px solid var(--border);}
.step-nav .spacer{flex:1;}

/* TAGS */
.tags{display:flex;flex-wrap:wrap;gap:5px;}
.tag{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:20px;font-size:11px;font-weight:600;font-family:var(--mono);transition:all .12s;}
.tag-semantic{background:rgba(91,127,255,.15);color:var(--accent);border:1px solid rgba(91,127,255,.25);cursor:pointer;}
.tag-warn{background:rgba(245,158,11,.15);color:var(--warn);border:1px solid rgba(245,158,11,.3);}
.sim-accepted{background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.35)!important;}
.sim-accepted .accept-check{color:rgba(52,211,153,.9);font-weight:700;}
/* ── TAXONOMY TREE ── */
.tree-node{margin:0;}
.tree-branch{padding-left:20px;border-left:1px solid var(--border2);margin-left:8px;}
.tree-row{display:flex;align-items:center;gap:8px;padding:3px 6px;border-radius:var(--radius);cursor:pointer;transition:background .1s;}
.tree-row:hover{background:var(--surface2);}
.tree-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--text3);cursor:pointer;flex-shrink:0;user-select:none;}
.tree-check{width:14px;height:14px;border:1.5px solid var(--border2);border-radius:3px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .12s;}
.tree-check.checked{background:var(--accent);border-color:var(--accent);}
.tree-check.partial{background:rgba(91,127,255,.3);border-color:var(--accent);}
.tree-label{font-size:12px;color:var(--text2);flex:1;}
.tree-label.selected{color:var(--accent3);font-weight:600;}

.tag-topic{background:rgba(167,139,250,.15);color:var(--accent2);border:1px solid rgba(167,139,250,.25);cursor:pointer;}
.tag-final{background:rgba(52,211,153,.12);color:var(--accent3);border:1px solid rgba(52,211,153,.25);}
.tag-semantic:hover,.tag-topic:hover{opacity:.75;}
.tag-add-btn{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:rgba(91,127,255,.2);color:var(--accent);font-size:13px;line-height:1;cursor:pointer;border:none;font-weight:700;transition:all .12s;flex-shrink:0;}
.tag-add-btn:hover{background:rgba(91,127,255,.4);}
.tag-del-btn{display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:50%;background:rgba(248,113,113,.15);color:var(--danger);font-size:11px;line-height:1;cursor:pointer;border:none;transition:all .12s;flex-shrink:0;opacity:.7;}
.tag-del-btn:hover{opacity:1;background:rgba(248,113,113,.3);}

/* TABLE */
.table-wrap{overflow-x:auto;border-radius:var(--radius2);border:1px solid var(--border);}
table{width:100%;border-collapse:collapse;font-size:13px;}
thead th{background:var(--surface2);padding:11px 14px;text-align:left;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text3);border-bottom:1px solid var(--border);white-space:nowrap;}
tbody tr{border-bottom:1px solid var(--border);transition:background .1s;}
tbody tr:last-child{border-bottom:none;}
tbody tr:hover{background:var(--surface2);}
td{padding:12px 14px;vertical-align:top;}
td.mono{font-family:var(--mono);font-size:12px;color:var(--text2);max-width:200px;word-break:break-word;}

/* MISC */
.spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.15);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}
.status-bar{padding:10px 16px;border-radius:var(--radius);font-size:12px;font-family:var(--mono);margin-top:14px;display:none;}
.status-bar.show{display:block;}
.status-bar.info{background:rgba(91,127,255,.1);color:var(--accent);border:1px solid rgba(91,127,255,.2);}
.status-bar.error{background:rgba(248,113,113,.1);color:var(--danger);border:1px solid rgba(248,113,113,.2);}
.status-bar.success{background:rgba(52,211,153,.1);color:var(--accent3);border:1px solid rgba(52,211,153,.2);}
.status-bar.warn{background:rgba(245,158,11,.1);color:var(--warn);border:1px solid rgba(245,158,11,.2);}
.json-viewer{background:var(--surface2);border:1px solid var(--border2);border-radius:var(--radius);padding:16px;font-family:var(--mono);font-size:12px;line-height:1.7;color:var(--text2);max-height:380px;overflow-y:auto;white-space:pre-wrap;word-break:break-all;}
.json-key{color:var(--accent);}.json-str{color:var(--accent3);}.json-num{color:var(--warn);}.json-bool{color:var(--accent2);}

/* MODAL */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:200;align-items:center;justify-content:center;}
.modal-overlay.show{display:flex;}
.modal{background:var(--surface);border:1px solid var(--border2);border-radius:var(--radius2);padding:28px;width:min(520px,90vw);max-height:85vh;overflow-y:auto;}
.modal-title{font-size:16px;font-weight:700;margin-bottom:4px;}
.modal-sub{font-size:12px;color:var(--text3);font-family:var(--mono);margin-bottom:20px;}
.modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;}

/* CHIPS */
.chips-wrap{display:flex;flex-wrap:wrap;gap:6px;padding:8px;background:var(--surface2);border:1px solid var(--border2);border-radius:var(--radius);min-height:42px;cursor:text;}
.chips-wrap:focus-within{border-color:var(--accent);}
.chip{display:inline-flex;align-items:center;gap:5px;padding:2px 8px 2px 10px;background:rgba(91,127,255,.2);border-radius:20px;font-size:12px;color:var(--accent);font-family:var(--mono);}
.chip-del{cursor:pointer;opacity:.6;font-size:14px;line-height:1;}
.chip-del:hover{opacity:1;color:var(--danger);}
.chips-input{border:none;background:transparent;outline:none;color:var(--text);font-family:var(--mono);font-size:13px;min-width:100px;flex:1;}

/* LAYOUT */
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.section-title{font-size:22px;font-weight:800;letter-spacing:-.02em;}
.section-sub{color:var(--text3);font-size:13px;margin-top:3px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media(max-width:900px){.two-col{grid-template-columns:1fr;}}
.three-col{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;}
@media(max-width:1100px){.three-col{grid-template-columns:1fr 1fr;}}
@media(max-width:700px){.three-col{grid-template-columns:1fr;}}

/* LANG BADGE */
.lang-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:11px;font-family:var(--mono);background:rgba(52,211,153,.1);color:var(--accent3);border:1px solid rgba(52,211,153,.2);}
.lang-badge.translated{background:rgba(245,158,11,.1);color:var(--warn);border-color:rgba(245,158,11,.2);}

/* PRESETS */
.presets-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px;}
.preset-btn{padding:4px 11px;border-radius:20px;font-size:11px;font-family:var(--mono);font-weight:600;cursor:pointer;border:1px solid var(--border2);background:var(--surface2);color:var(--text2);transition:all .12s;}
.preset-btn:hover{border-color:var(--accent);color:var(--accent);}

/* COLLECTION CARDS */
.collection-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius2);padding:18px 20px;display:flex;align-items:center;gap:16px;}
.collection-card-name{font-size:15px;font-weight:700;flex:1;}
.collection-list{display:flex;flex-direction:column;gap:12px;}
.empty-state{text-align:center;padding:60px 20px;color:var(--text3);font-size:14px;}
.empty-state .icon{font-size:36px;margin-bottom:12px;}

/* DB SAVE PANEL */
.db-panel{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;margin-top:20px;}
.db-panel-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:14px;display:flex;align-items:center;gap:8px;}

/* INLINE ADD LABEL */
.inline-add{display:inline-flex;align-items:center;gap:0;}
.inline-add input{width:110px;padding:3px 8px;font-size:11px;font-family:var(--mono);background:var(--surface2);border:1px solid var(--border2);border-right:none;border-radius:var(--radius) 0 0 var(--radius);color:var(--text);outline:none;}
.inline-add input:focus{border-color:var(--accent);}
.inline-add button{padding:3px 8px;font-size:11px;border-radius:0 var(--radius) var(--radius) 0;background:var(--accent);color:#fff;border:none;cursor:pointer;font-family:var(--sans);font-weight:700;}