/* SteelCtrl — Reusable UI Components
   Source: SteelCtrl_v5_EBEESCORP.html L98–275
   Sections: Pages, Metric Cards, Panels, Buttons, Badges, Infra-type Badges,
             Tables, Forms, Modals, Toast, Context Menu, Progress Bars,
             Dividers, Grid Layouts, Structure Tree, Structure Detail
   Depends on: tokens.css
   ─────────────────────────────────────────── */

/* ── PAGES ── */
.page{display:none;height:100%;flex-direction:column}
.page.active{display:flex}
.page-header{padding:20px 24px 14px;flex-shrink:0}
.page-title{font-family:var(--display);font-size:18px;font-weight:700;letter-spacing:-.3px;margin-bottom:3px}
.page-subtitle{font-size:11px;color:var(--txt2);line-height:1.5}
.page-body{flex:1;overflow-y:auto;padding:0 24px 24px}

/* ── METRICS CARDS ── */
.metric-grid{display:grid;gap:10px;margin-bottom:16px}
.mg-4{grid-template-columns:repeat(4,1fr)}
.mg-3{grid-template-columns:repeat(3,1fr)}
.mg-2{grid-template-columns:1fr 1fr}
.metric-card{background:var(--raised);border:1px solid var(--line);border-radius:8px;padding:16px;position:relative;overflow:hidden;transition:border-color .2s}
.metric-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:3px 0 0 3px}
.mc-gold::before{background:var(--gold)}
.mc-mint::before{background:var(--mint)}
.mc-sky::before{background:var(--sky)}
.mc-rose::before{background:var(--rose)}
.mc-violet::before{background:var(--violet)}
.mc-cyan::before{background:var(--cyan)}
.metric-card:hover{border-color:var(--line2)}
.metric-label{font-size:9px;letter-spacing:2px;color:var(--txt3);text-transform:uppercase;margin-bottom:8px;font-weight:500}
.metric-value{font-family:var(--mono);font-size:24px;font-weight:600;line-height:1;margin-bottom:4px}
.metric-sub{font-size:10px;color:var(--txt2);display:flex;align-items:center;gap:4px}
.metric-trend{font-size:10px;font-family:var(--mono);padding:2px 6px;border-radius:3px;margin-left:auto}
.trend-up{background:var(--mint-dim);color:var(--mint)}
.trend-down{background:var(--rose-dim);color:var(--rose)}
.trend-neutral{background:var(--amber-dim);color:var(--amber)}

/* ── PANELS ── */
.panel{background:var(--raised);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-bottom:14px}
.panel-header{padding:12px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:8px}
.panel-title{font-size:11px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:var(--txt2)}
.panel-body{padding:16px}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font-size:11px;font-weight:500;border-radius:5px;cursor:pointer;transition:all .15s;border:1px solid transparent;white-space:nowrap;font-family:var(--sans)}
.btn i{font-size:14px}
.btn-primary{background:var(--gold);color:#000;border-color:var(--gold);font-weight:600}
.btn-primary:hover{background:var(--gold2)}
.btn-ghost{background:transparent;color:var(--txt2);border-color:var(--line2)}
.btn-ghost:hover{color:var(--txt);border-color:var(--line3);background:rgba(255,255,255,0.04)}
.btn-danger{background:var(--rose-dim);color:var(--rose);border-color:rgba(239,68,68,0.3)}
.btn-danger:hover{background:rgba(239,68,68,0.2)}
.btn-mint{background:var(--mint-dim);color:var(--mint);border-color:rgba(16,185,129,0.3)}
.btn-mint:hover{background:rgba(16,185,129,0.2)}
.btn-violet{background:var(--violet-dim);color:var(--violet);border-color:rgba(139,92,246,0.3)}
.btn-violet:hover{background:rgba(139,92,246,0.2)}
.btn-sky{background:var(--sky-dim);color:var(--sky);border-color:rgba(59,130,246,0.3)}
.btn-sky:hover{background:rgba(59,130,246,0.2)}
.btn-sm{padding:5px 10px;font-size:10px}
.btn-lg{padding:11px 22px;font-size:13px}
.btn-group{display:flex;gap:6px;align-items:center}

/* ── PILLS / BADGES ── */
.badge{display:inline-flex;align-items:center;gap:4px;font-size:9px;letter-spacing:.8px;padding:2px 7px;border-radius:3px;text-transform:uppercase;white-space:nowrap;font-weight:500;border:1px solid}
.badge-active{background:var(--mint-dim);color:var(--mint);border-color:rgba(16,185,129,0.25)}
.badge-warn{background:var(--amber-dim);color:var(--amber);border-color:rgba(245,158,11,0.25)}
.badge-locked{background:var(--rose-dim);color:var(--rose);border-color:rgba(239,68,68,0.25)}
.badge-draft{background:rgba(100,116,139,0.1);color:var(--txt3);border-color:rgba(100,116,139,0.2)}
.badge-approved{background:var(--sky-dim);color:var(--sky);border-color:rgba(59,130,246,0.25)}
.badge-pre{background:var(--violet-dim);color:var(--violet);border-color:rgba(139,92,246,0.25)}
.badge-post{background:var(--sky-dim);color:var(--sky);border-color:rgba(59,130,246,0.25)}

/* ── INFRA TYPE BADGES ── */
.type-badge{display:inline-flex;align-items:center;gap:5px;font-size:10px;padding:3px 8px;border-radius:4px;border:1px solid;font-weight:500}
.tb-metro{background:rgba(245,158,11,0.1);color:#f59e0b;border-color:rgba(245,158,11,0.2)}
.tb-airport{background:rgba(6,182,212,0.1);color:#06b6d4;border-color:rgba(6,182,212,0.2)}
.tb-building{background:rgba(239,68,68,0.1);color:#ef4444;border-color:rgba(239,68,68,0.2)}
.tb-bridge{background:rgba(139,92,246,0.1);color:#8b5cf6;border-color:rgba(139,92,246,0.2)}
.tb-highway{background:rgba(16,185,129,0.1);color:#10b981;border-color:rgba(16,185,129,0.2)}
.tb-hydro{background:rgba(59,130,246,0.1);color:#3b82f6;border-color:rgba(59,130,246,0.2)}
.tb-factory{background:rgba(251,146,60,0.1);color:#fb923c;border-color:rgba(251,146,60,0.2)}
.tb-tunnel{background:rgba(100,116,139,0.1);color:#94a3b8;border-color:rgba(100,116,139,0.2)}

/* ── TABLES ── */
.data-table{width:100%;border-collapse:collapse;font-size:12px}
.data-table th{text-align:left;padding:9px 12px;font-size:9px;letter-spacing:1.5px;text-transform:uppercase;color:var(--txt3);border-bottom:1px solid var(--line);font-weight:500;white-space:nowrap;background:var(--raised);position:sticky;top:0;z-index:2}
.data-table td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle;color:var(--txt)}
.data-table tr:hover td{background:rgba(255,255,255,0.02)}
.data-table tr:last-child td{border-bottom:none}
.mono{font-family:var(--mono);font-size:11px}
.text-gold{color:var(--gold)}
.text-mint{color:var(--mint)}
.text-rose{color:var(--rose)}
.text-sky{color:var(--sky)}
.text-dim{color:var(--txt2)}
.text-dimmer{color:var(--txt3)}

/* ── FORMS ── */
.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.form-label{font-size:9px;letter-spacing:1.5px;text-transform:uppercase;color:var(--txt3);font-weight:500}
.form-input,.form-select,.form-textarea{background:var(--float);color:var(--txt);border:1px solid var(--line2);padding:9px 12px;font-size:12px;font-family:var(--sans);border-radius:5px;width:100%;transition:border-color .15s}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 2px var(--gold-dim)}
.form-input::placeholder{color:var(--txt3)}
.form-row{display:grid;gap:12px;margin-bottom:14px}
.fr-2{grid-template-columns:1fr 1fr}
.fr-3{grid-template-columns:1fr 1fr 1fr}
.fr-4{grid-template-columns:1fr 1fr 1fr 1fr}

/* ── MODAL ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.75);display:none;align-items:center;justify-content:center;z-index:1000;padding:20px;backdrop-filter:blur(4px)}
.modal-overlay.open{display:flex}
.modal{background:var(--panel);border:1px solid var(--line2);border-radius:10px;padding:28px;width:100%;max-width:640px;max-height:88vh;overflow-y:auto;animation:modalIn .2s ease-out}
@keyframes modalIn{from{opacity:0;transform:translateY(-10px) scale(.98)}to{opacity:1;transform:none}}
.modal-sm{max-width:440px}
.modal-lg{max-width:820px}
.modal-title{font-family:var(--display);font-size:17px;font-weight:700;margin-bottom:5px}
.modal-subtitle{font-size:11px;color:var(--txt2);margin-bottom:20px;line-height:1.6}
.modal-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}

/* ── TOAST ── */
.toast-container{position:fixed;bottom:24px;right:24px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--panel);border:1px solid var(--line2);border-radius:8px;padding:13px 16px;font-size:12px;display:flex;align-items:center;gap:10px;transform:translateX(120px);opacity:0;transition:all .3s cubic-bezier(.34,1.56,.64,1);min-width:280px;max-width:360px;box-shadow:0 8px 24px rgba(0,0,0,0.4)}
.toast.show{transform:none;opacity:1}
.toast-icon{font-size:16px;flex-shrink:0}
.toast-body{flex:1}
.toast-title{font-weight:600;margin-bottom:1px}
.toast-msg{color:var(--txt2);font-size:11px}
.toast.t-success{border-left:3px solid var(--mint)}
.toast.t-error{border-left:3px solid var(--rose)}
.toast.t-warn{border-left:3px solid var(--gold)}
.toast.t-info{border-left:3px solid var(--sky)}

/* ── CONTEXT MENU ── */
.ctx-menu{position:fixed;background:var(--panel);border:1px solid var(--line2);border-radius:8px;padding:5px 0;z-index:500;min-width:200px;box-shadow:0 10px 30px rgba(0,0,0,0.5);display:none;animation:ctxIn .15s ease-out}
@keyframes ctxIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:none}}
.ctx-item{padding:8px 14px;font-size:12px;cursor:pointer;display:flex;align-items:center;gap:9px;color:var(--txt2);transition:all .1s}
.ctx-item:hover{background:rgba(255,255,255,0.05);color:var(--txt)}
.ctx-item i{font-size:15px;width:18px;flex-shrink:0}
.ctx-item.danger{color:var(--rose)}
.ctx-item.danger:hover{background:var(--rose-dim)}
.ctx-divider{height:1px;background:var(--line);margin:4px 0}

/* ── PROGRESS BARS ── */
.prog-bar{height:4px;background:rgba(255,255,255,0.06);border-radius:99px;overflow:hidden}
.prog-fill{height:100%;border-radius:99px;transition:width .6s ease}
.pf-gold{background:var(--gold)}
.pf-mint{background:var(--mint)}
.pf-rose{background:var(--rose)}
.pf-sky{background:var(--sky)}
.pf-gradient{background:linear-gradient(90deg,var(--mint),var(--gold))}

/* ── DIVIDERS ── */
.divider{height:1px;background:var(--line);margin:12px 0}
.divider-v{width:1px;background:var(--line);align-self:stretch}

/* ── GRID LAYOUTS ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.grid-master{display:grid;grid-template-columns:280px 1fr;gap:14px}
.grid-master-lg{display:grid;grid-template-columns:320px 1fr;gap:14px}

/* ── STRUCTURE TREE ── */
.tree-container{overflow-y:auto;max-height:100%}
.tree-node{user-select:none}
.tree-node-row{display:flex;align-items:center;gap:6px;padding:7px 10px;cursor:pointer;border-radius:5px;transition:all .12s;color:var(--txt2);font-size:12px;position:relative}
.tree-node-row:hover{background:rgba(255,255,255,0.04);color:var(--txt)}
.tree-node-row.selected{background:var(--gold-dim);color:var(--gold)}
.tree-node-row.selected .tree-icon{color:var(--gold)}
.tree-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--txt3);font-size:11px;transition:transform .15s}
.tree-toggle.open{transform:rotate(90deg)}
.tree-icon{font-size:14px;flex-shrink:0;color:var(--txt3)}
.tree-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tree-qty{font-family:var(--mono);font-size:10px;color:var(--txt3);white-space:nowrap}
.tree-children{padding-left:20px;border-left:1px solid var(--line)}
.tree-children.closed{display:none}

/* ── STRUCTURE DETAIL ── */
.detail-header{padding:20px;border-bottom:1px solid var(--line)}
.detail-element-name{font-family:var(--display);font-size:20px;font-weight:700;margin-bottom:4px}
.detail-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:16px;border-bottom:1px solid var(--line)}
.kpi-item{text-align:center}
.kpi-val{font-family:var(--mono);font-size:20px;font-weight:600;line-height:1}
.kpi-lbl{font-size:9px;letter-spacing:1.5px;color:var(--txt3);text-transform:uppercase;margin-top:4px}