/* ═══════════════════════════════════════════
   CSS VARIABLES — MODERN THEME (default)
═══════════════════════════════════════════ */
:root {
  color-scheme:dark;
  --bg:#0d1117; --surface:#161b22; --surface2:#1c2333; --surface3:#21262d;
  --border:#21262d; --border2:#30363d;
  --accent:#58a6ff; --green:#3fb950; --green2:#238636;
  --amber:#d29922; --red:#f85149; --cyan:#79c0ff; --purple:#bc8cff;
  --promo:#1f3d5c; --promo-border:#264d73; --promo-accent:#58a6ff;
  --text:#e6edf3; --text2:#a5adb7; --text3:#8b949e;
  --ps-user:#3fb950; --ps-path:#58a6ff;
  --font:'JetBrains Mono','Cascadia Code','Courier New',monospace;
  --r:5px; --sidebar-w:248px;
}
/* ═══════════════════════════════════════════
   RETRO THEME OVERRIDES
═══════════════════════════════════════════ */
[data-theme="retro"] {
  --bg:#080c08; --surface:#0d120d; --surface2:#111811; --surface3:#162016;
  --border:#1a2e1a; --border2:#243824;
  --accent:#00ff88; --green:#00ff88; --green2:#00cc66;
  --amber:#ffcc00; --red:#ff4455; --cyan:#00ffcc; --purple:#cc88ff;
  --promo:#0d2010; --promo-border:#1a4020; --promo-accent:#00ff88;
  --text:#c8f0c8; --text2:#8fbd8f; --text3:#79a779;
  --ps-user:#00ff88; --ps-path:#44aaff;
}
[data-theme="retro"] body::after {
  content:''; position:fixed; inset:0; pointer-events:none; z-index:9999;
  background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.13) 2px,rgba(0,0,0,.13) 4px);
}
[data-theme="retro"] .btn-run { box-shadow:0 0 14px rgba(0,255,136,.3); }
[data-theme="retro"] .btn-run:hover { box-shadow:0 0 22px rgba(0,255,136,.5); }
[data-theme="retro"] .nav-active-dot { box-shadow:0 0 7px var(--green); }
[data-theme="retro"] .t-input-wrap:focus-within { box-shadow:0 0 0 2px rgba(0,255,136,.18); border-color:var(--green); }
[data-theme="retro"] input[type=range]::-webkit-slider-thumb { box-shadow:0 0 8px var(--green); }
[data-theme="retro"] .usage-bar-fill { box-shadow:0 0 8px rgba(0,255,136,.4); }
[data-theme="retro"] .nav-item.active { background:rgba(0,255,136,.07); }
[data-theme="retro"] .nav-item:hover { background:rgba(0,255,136,.04); color:var(--green); }
[data-theme="retro"] .panel-topbar .cmd-name { color:var(--green); }
[data-theme="retro"] .promo-banner { border-color:var(--promo-border); }
[data-theme="retro"] .promo-btn { border-color:var(--green); color:var(--green); }
[data-theme="retro"] .promo-btn:hover { background:rgba(0,255,136,.1); }

/* ═══════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;height:100%}
html.ui-pending .term-window,html.ui-pending .skip-link{visibility:hidden}
body{font-family:var(--font);font-size:13px;background:var(--bg);color:var(--text);min-height:100%;overflow-x:hidden;overflow-y:auto;line-height:1.5}
.skip-link{position:fixed;left:12px;top:8px;z-index:10000;transform:translateY(-160%);padding:8px 12px;background:var(--surface);color:var(--text);border:2px solid var(--accent);border-radius:var(--r);text-decoration:none}
.skip-link:focus{transform:translateY(0)}
:where(a,button,input,select,textarea,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:2px}
html[lang="es"].i18n-pending .term-window,
html[lang="es"].i18n-pending .skip-link{visibility:hidden}

/* ═══════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════ */
.term-window{display:flex;flex-direction:column;min-height:100vh;width:100%}
.term-titlebar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 14px;height:38px;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:10px;flex-shrink:0;user-select:none;position:sticky;top:0;z-index:400}
.term-dots{display:flex;gap:6px;justify-self:start}
.term-dot{width:12px;height:12px;border-radius:50%;opacity:.85}
.term-dot.r{background:#ff5f57}.term-dot.y{background:#febc2e}.term-dot.g{background:#28c840}
.term-title{justify-self:center;text-align:center;font-size:11px;color:var(--text2);letter-spacing:.06em;white-space:nowrap}
.term-title-mobile,.mob-title-menu{display:none}
.tb-controls{display:flex;gap:5px;align-items:center;justify-self:end}
.tb-btn{font-family:var(--font);font-size:10px;padding:3px 9px;border-radius:var(--r);border:1px solid var(--border2);background:transparent;color:var(--text2);cursor:pointer;transition:color .15s,border-color .15s,background-color .15s;white-space:nowrap;text-decoration:none}
.tb-btn:hover{border-color:var(--text2);color:var(--text)}
.tb-btn.active{background:var(--accent);border-color:var(--accent);color:#000;font-weight:700}
[data-theme="retro"] .tb-btn.active{color:#000}
.tb-sep{color:var(--border2);font-size:13px}
.tb-hist-btn{font-size:12px;padding:3px 8px;background:transparent;border:1px solid var(--border2);color:var(--text2);border-radius:var(--r);cursor:pointer;transition:color .15s,border-color .15s,background-color .15s}
.tb-hist-btn:hover{border-color:var(--text2);color:var(--text)}
.tb-hist-btn.has-data{border-color:var(--accent);color:var(--accent)}
[data-theme="retro"] .tb-hist-btn.has-data{border-color:var(--green);color:var(--green)}

.term-body{display:flex;flex:1;overflow:visible;position:relative;align-items:flex-start}

/* ═══════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════ */
.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;position:sticky;top:38px;height:calc(100vh - 38px);align-self:flex-start}
.sidebar-header{padding:10px 14px;border-bottom:1px solid var(--border);flex-shrink:0}
.sidebar-prompt{font-size:12px;line-height:1.6}
.ps-u{color:var(--ps-user)}.ps-sep{color:var(--text3)}.ps-p{color:var(--ps-path)}.ps-c{color:var(--text2)}
.blink{animation:blink 1.1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.sidebar-nav{flex:1;overflow-y:auto;padding:4px 0 8px}
.sidebar-nav::-webkit-scrollbar{width:3px}
.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}
.nav-group{margin-bottom:2px}
.nav-group-header{padding:8px 14px 4px;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text2);display:flex;align-items:center;gap:6px}
.nav-group-header::before{content:'▸';font-size:9px}
.nav-item{display:flex;align-items:center;padding:5px 12px 5px 14px;cursor:pointer;color:var(--text2);font-size:12px;transition:color .1s,background .1s;border-left:2px solid transparent;gap:0;text-decoration:none}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--accent);border-left-color:var(--accent);background:rgba(88,166,255,.06)}
[data-theme="retro"] .nav-item.active{color:var(--green);border-left-color:var(--green)}
.nav-icon{width:18px;text-align:center;flex-shrink:0;font-size:11px;opacity:.75}
.nav-item.active .nav-icon{opacity:1}
.nav-tree{color:var(--text3);font-size:11px;flex-shrink:0}
.nav-item-label{flex:1;padding-left:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-active-dot{width:5px;height:5px;background:var(--accent);border-radius:50%;margin-right:2px;flex-shrink:0}
[data-theme="retro"] .nav-active-dot{background:var(--green)}

/* Sidebar promo block */
.sidebar-promo{margin:8px 10px;padding:10px 12px;background:var(--promo);border:1px solid var(--promo-border);border-radius:var(--r);flex-shrink:0}
.sidebar-promo-title{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--text2);margin-bottom:8px}
.promo-links{display:flex;gap:6px;flex-direction:column}
.promo-link{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--text2);text-decoration:none;padding:5px 8px;border:1px solid var(--border2);border-radius:var(--r);transition:color .15s,border-color .15s,background-color .15s}
.promo-link:hover{color:var(--promo-accent);border-color:var(--promo-accent)}
.promo-link-icon{font-size:14px}
.promo-link-disabled{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--text3);padding:5px 8px;border:1px solid var(--border);border-radius:var(--r);opacity:.6;cursor:default}
.promo-soon{margin-left:auto;font-size:9px;letter-spacing:.06em;text-transform:uppercase;background:var(--surface3);color:var(--text3);padding:1px 5px;border-radius:3px;border:1px solid var(--border2);white-space:nowrap}

/* ═══════════════════════════════════════════
   MAIN PANEL
═══════════════════════════════════════════ */
.main-panel{flex:1;min-width:0;display:flex;flex-direction:column;overflow:visible;background:var(--bg)}
.panel-topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 16px;height:36px;display:flex;align-items:center;gap:10px;flex-shrink:0}
.panel-topbar .cmd-prompt{color:var(--text3);font-size:11px}
.panel-topbar .cmd-name{color:var(--accent);font-size:12px;font-weight:600}
.panel-topbar .cmd-desc{color:var(--text3);font-size:11px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mob-menu-btn{display:none}

/* App/Bot promo banner */
.promo-banner{background:var(--promo);border-bottom:1px solid var(--promo-border);padding:6px 16px;display:flex;align-items:center;gap:10px;flex-shrink:0;font-size:11px}
.promo-banner.hidden{display:none}
.promo-banner-text{color:var(--text2);flex:1}
.promo-banner-text strong{color:var(--text)}
.promo-btn{font-family:var(--font);font-size:10px;padding:3px 10px;border:1px solid var(--promo-accent);color:var(--promo-accent);border-radius:var(--r);background:transparent;cursor:pointer;text-decoration:none;transition:color .15s,border-color .15s,background-color .15s;white-space:nowrap}
.promo-btn:hover{background:rgba(88,166,255,.1)}
.promo-dismiss{background:transparent;border:none;color:var(--text3);cursor:pointer;font-size:14px;padding:0 2px;line-height:1;flex-shrink:0}
.promo-dismiss:hover{color:var(--text)}

.seo-breadcrumb{font-size:11px;color:var(--text3);padding:4px 16px;border-bottom:1px solid var(--border);flex-shrink:0;display:flex;gap:6px;align-items:center}
.seo-breadcrumb a{color:var(--text3);text-decoration:none}
.seo-breadcrumb a:hover{color:var(--accent)}
.panels-container{width:100%;overflow:visible;padding:20px 20px 48px}
.tool-panel{display:none}
.tool-panel.active{display:block;animation:fadeIn .18s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}

/* ═══════════════════════════════════════════
   HISTORY DRAWER
═══════════════════════════════════════════ */
.history-drawer{position:fixed;top:38px;right:0;height:calc(100vh - 38px);width:320px;background:var(--surface);border-left:1px solid var(--border);z-index:200;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .22s ease}
.history-drawer.open{transform:translateX(0)}
.history-header{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.history-title{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text3)}
.history-close{background:transparent;border:none;color:var(--text3);cursor:pointer;font-size:16px;line-height:1}
.history-close:hover{color:var(--text)}
.history-list{flex:1;overflow-y:auto;padding:8px}
.history-list::-webkit-scrollbar{width:3px}
.history-list::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}
.history-empty{color:var(--text3);font-size:12px;text-align:center;padding:24px 16px}
.history-item{padding:8px 10px;border:1px solid var(--border);border-radius:var(--r);margin-bottom:6px;cursor:pointer;transition:border-color .15s,background .15s}
.history-item:hover{border-color:var(--accent);background:rgba(88,166,255,.05)}
[data-theme="retro"] .history-item:hover{border-color:var(--green);background:rgba(0,255,136,.04)}
.history-item-tool{font-size:10px;color:var(--text3);letter-spacing:.07em;text-transform:uppercase;margin-bottom:3px;display:flex;align-items:center;gap:5px}
.history-item-val{font-size:12px;color:var(--cyan);font-weight:600}
.history-item-time{font-size:10px;color:var(--text3);margin-top:2px}
.history-footer{padding:8px;border-top:1px solid var(--border);flex-shrink:0}
.history-clear-btn{width:100%;font-family:var(--font);font-size:11px;padding:6px;background:transparent;border:1px solid var(--border2);color:var(--text3);border-radius:var(--r);cursor:pointer}
.history-clear-btn:hover{border-color:var(--red);color:var(--red)}

/* ═══════════════════════════════════════════
   TOOL HEADER
═══════════════════════════════════════════ */
.t-cmd{display:flex;align-items:center;gap:8px;margin-bottom:10px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.t-cmd .ps1{font-size:12px;color:var(--text3);flex-shrink:0}
.t-cmd .ps1 .u{color:var(--ps-user)}.t-cmd .ps1 .p{color:var(--ps-path)}
.t-cmd h1,.t-cmd h2,.t-cmd h3{font-size:14px;font-weight:600;color:var(--text)}
.t-comment{color:var(--text2);font-size:12px;margin-bottom:16px;line-height:1.6}
.t-comment::before{content:'# '}

/* ═══════════════════════════════════════════
   FORMS
═══════════════════════════════════════════ */
.t-form{margin-bottom:14px}
.t-row{display:grid;gap:12px;margin-bottom:12px}
.t-row.cols2{grid-template-columns:1fr 1fr}
.t-row.cols3{grid-template-columns:1fr 1fr 1fr}
.t-field label{display:block;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text2);margin-bottom:5px}
.t-input-wrap{display:flex;align-items:center;background:var(--surface2);border:1px solid var(--border2);border-radius:var(--r);overflow:hidden;transition:border-color .15s}
.t-input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(88,166,255,.12)}
.t-ps{padding:9px 10px;color:var(--text3);font-size:12px;background:var(--surface3);border-right:1px solid var(--border2);white-space:nowrap;flex-shrink:0;user-select:none}
[data-theme="retro"] .t-ps{color:var(--green2)}
input[type=text],input[type=number],select,textarea{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-family:var(--font);font-size:13px;padding:9px 12px;width:100%}
select option{background:var(--surface2)}
textarea{resize:vertical;min-height:80px}
input::placeholder{color:var(--text3)}
input[type=range]{-webkit-appearance:none;width:100%;height:3px;background:var(--border2);border-radius:3px;outline:none;padding:0;cursor:pointer;margin-top:6px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;background:var(--accent);border-radius:50%;cursor:pointer}
/* Focus accessibility */
input:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[data-theme="retro"] input:focus-visible,[data-theme="retro"] button:focus-visible{outline-color:var(--green)}

/* ═══════════════════════════════════════════
   BUTTONS
═══════════════════════════════════════════ */
.t-btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.btn{font-family:var(--font);font-size:12px;font-weight:600;padding:8px 16px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:color .15s,border-color .15s,background-color .15s,box-shadow .15s}
.btn-run{background:var(--accent);color:#0d1117;border-color:var(--accent)}
.btn-run:hover{filter:brightness(1.12)}
[data-theme="retro"] .btn-run{color:#000}
.btn-clear{background:transparent;color:var(--text2);border-color:var(--border2)}
.btn-clear:hover{border-color:var(--text2);color:var(--text)}
.btn-add{background:transparent;color:var(--green);border-color:var(--border2)}
.btn-add:hover{border-color:var(--green)}
.btn-del{background:transparent;color:var(--red);border-color:rgba(248,81,73,.25);padding:6px 10px;font-size:11px}
.btn-del:hover{background:rgba(248,81,73,.1)}
.btn-csv{background:transparent;color:var(--purple);border-color:rgba(188,140,255,.35);font-size:11px;padding:4px 10px}
.btn-csv:hover{border-color:var(--purple)}
.btn-copy-hdr{background:transparent;color:var(--text3);border:1px solid var(--border2);padding:3px 8px;font-size:10px;cursor:pointer;border-radius:var(--r);transition:color .15s,border-color .15s,background-color .15s;font-family:var(--font)}
.btn-copy-hdr:hover{color:var(--text);border-color:var(--text3)}

/* ═══════════════════════════════════════════
   OUTPUT & RESULT CELLS
═══════════════════════════════════════════ */
.t-output{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;margin-top:14px}
.t-output-header{background:var(--surface3);border-bottom:1px solid var(--border);padding:5px 12px;display:flex;align-items:center;gap:8px;font-size:10px;color:var(--text2);letter-spacing:.07em;text-transform:uppercase;flex-wrap:wrap;gap:6px}
.t-output-header .ok{color:var(--green);font-size:11px}
.t-output-body{padding:12px 14px}
.res-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(175px,1fr));gap:7px;margin-bottom:10px}
.res-cell{background:var(--surface2);border:1px solid var(--border);border-radius:var(--r);padding:9px 10px;position:relative;transition:border-color .12s}
.res-cell:hover{border-color:var(--border2)}
.res-key{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--text2);margin-bottom:4px;padding-right:22px}
.res-val{font-size:13px;color:var(--text);word-break:break-all;line-height:1.5}
.res-val.green{color:var(--green)}.res-val.amber{color:var(--amber)}.res-val.red{color:var(--red)}.res-val.blue{color:var(--accent)}.res-val.cyan{color:var(--cyan)}
/* inline indicator icons (accessibility — not just color) */
.res-val.green::before{content:'✓ '}.res-val.amber::before{content:'⚠ '}.res-val.red::before{content:'✖ '}
/* per-cell copy button */
.cell-copy{position:absolute;top:6px;right:6px;background:transparent;border:none;color:var(--text3);cursor:pointer;font-size:10px;opacity:0;transition:opacity .15s;padding:2px 4px;border-radius:3px}
.res-cell:hover .cell-copy{opacity:1}
.cell-copy:hover{color:var(--text);background:var(--surface3)}

.t-table-wrap{overflow-x:auto;margin-top:6px}
table{width:100%;border-collapse:collapse;font-size:12px}
thead th{font-size:9px;letter-spacing:.09em;text-transform:uppercase;color:var(--text2);padding:7px 10px;text-align:left;border-bottom:1px solid var(--border2);white-space:nowrap;background:var(--surface3)}
tbody tr{border-bottom:1px solid var(--border);transition:background .1s}
tbody tr:hover{background:rgba(255,255,255,.025)}
[data-theme="retro"] tbody tr:hover{background:rgba(0,255,136,.03)}
tbody td{font-size:12px;padding:7px 10px;color:var(--text);white-space:nowrap}
tbody td.green{color:var(--green);font-weight:600}
tbody td.amber{color:var(--amber)}tbody td.red{color:var(--red)}tbody td.blue{color:var(--accent)}tbody td.dim{color:var(--text3)}

/* Pagination */
.pagination{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:11px;color:var(--text3)}
.pagination button{font-family:var(--font);font-size:11px;padding:4px 10px;background:transparent;border:1px solid var(--border2);color:var(--text2);border-radius:var(--r);cursor:pointer;transition:color .15s,border-color .15s,background-color .15s}
.pagination button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.pagination button:disabled{opacity:.3;cursor:default}
[data-theme="retro"] .pagination button:hover:not(:disabled){border-color:var(--green);color:var(--green)}

.t-error{background:rgba(248,81,73,.08);border:1px solid rgba(248,81,73,.25);border-radius:var(--r);padding:8px 12px;color:var(--red);font-size:12px;margin-top:10px;display:none}
.t-error.show{display:block}
.t-error::before{content:'✖ '}
.t-info{background:rgba(88,166,255,.06);border:1px solid rgba(88,166,255,.2);border-radius:var(--r);padding:8px 12px;color:var(--cyan);font-size:12px;margin-top:10px}
.t-info::before{content:'ℹ '}

.bin-line{font-size:12px;line-height:2.2;letter-spacing:.05em;padding:2px 0}
.bin-label{color:var(--text3);display:inline-block;width:90px;font-size:11px}
.bn{color:var(--green)}.bh{color:var(--amber)}.bdot{color:var(--text3)}
.vlsm-row{display:flex;gap:8px;align-items:center;margin-bottom:7px}
.usage-bar-wrap{margin-top:10px}
.usage-bar-label{font-size:10px;color:var(--text3);margin-bottom:5px;display:flex;justify-content:space-between}
.usage-bar{height:5px;background:var(--border2);border-radius:3px;overflow:hidden}
.usage-bar-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--green),var(--cyan));transition:width .4s ease}
.planner-row td input{background:transparent;border:none;outline:none;color:var(--text);font-family:var(--font);font-size:12px;width:100%;padding:6px 10px}
.planner-row td input:focus{background:rgba(88,166,255,.05)}
[data-theme="retro"] .planner-row td input:focus{background:rgba(0,255,136,.05)}
.api-loading-bar{position:absolute;top:0;left:0;right:0;height:2px;pointer-events:none;overflow:hidden;z-index:200}
.api-loading-bar.loading::after{content:'';position:absolute;width:40%;height:100%;background:var(--accent);animation:loadbar 1.1s ease-in-out infinite;border-radius:1px}
@keyframes loadbar{0%{left:-40%}100%{left:140%}}
.seo-footer-section{margin-top:28px;padding-top:18px;border-top:1px solid var(--border);color:var(--text3);font-size:11px;line-height:1.8}
.seo-footer-section h2{color:var(--text2);font-size:11px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.seo-footer-section p{margin-bottom:8px}
/* Geo result map hint */
.geo-coords{font-size:11px;color:var(--text3);margin-top:8px}
.geo-coords a{color:var(--accent);text-decoration:none}
.geo-coords a:hover{text-decoration:underline}

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media(max-width:900px){
  :root{--sidebar-w:220px}
  .panels-container{padding:14px 14px 32px}
}
@media(max-width:768px){
  html,body{max-width:100%;overflow-x:hidden}
  .term-window{min-height:100vh;max-width:100%}
  .term-body{flex-direction:column;align-items:stretch;max-width:100%;min-width:0}
  .main-panel,.panels-container{max-width:100%;min-width:0}
  .term-titlebar{height:auto;min-height:82px;grid-template-columns:1fr auto 1fr;grid-template-rows:38px 36px;padding:4px 8px;column-gap:8px;row-gap:2px}
  .mob-title-menu{display:inline-flex;grid-column:1;grid-row:1;justify-self:start;align-self:center;align-items:center;gap:6px;min-height:34px;padding:5px 9px;border:1px solid var(--border2);border-radius:6px;background:var(--surface2);color:var(--text2);font:600 10px var(--font);cursor:pointer}
  .mob-title-menu:hover{border-color:var(--accent);color:var(--accent)}
  .term-dots{grid-column:3;grid-row:1;justify-self:end;gap:4px}.term-dot{width:9px;height:9px}
  .term-title{display:block;grid-column:2;grid-row:1;align-self:center;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--text)}
  .term-title-desktop{display:none}.term-title-mobile{display:inline}
  .tb-controls{grid-column:1/-1;grid-row:2;width:100%;min-width:0;justify-self:stretch;justify-content:center;gap:4px}
  .tb-sep{display:none}
  .tb-btn,.tb-hist-btn{min-width:38px;min-height:32px;padding:3px 7px;border-radius:6px}
  .tb-btn>span,.tb-hist-btn>span{display:none}
  #btn-theme-paper{font-size:0}
  #btn-theme-paper::before{content:'▤';font-size:12px}
  .sidebar{position:static;top:auto;height:auto;align-self:stretch;width:100%;min-width:0;max-height:0;overflow:hidden;transition:max-height .3s ease;border-right:none;border-bottom:1px solid var(--border)}
  .sidebar.open{max-height:620px}
  .panel-topbar{width:100%;min-width:0}
  .panel-topbar .mob-menu-btn{display:none!important}
  .t-row.cols2,.t-row.cols3{grid-template-columns:1fr}
  .res-grid{grid-template-columns:1fr 1fr}
  .history-drawer{width:100%;border-left:none;border-top:1px solid var(--border)}
  .promo-banner{display:none}
  .btn-run,.history-close{min-height:44px}
  .history-close{min-width:44px}
}
@media(max-width:480px){.res-grid{grid-template-columns:1fr}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important}
  [data-theme="retro"] body::after{display:none}
}

/* Utilities migrated from legacy inline styles. */
.planner-index{padding:6px 10px}
.planner-input{font-size:12px;padding:6px 10px;background:transparent;border:none;outline:none;color:var(--text);font-family:var(--font);width:100%}
.compact-delete{padding:4px 9px}
.binary-card{margin-top:10px;padding:10px 12px;background:var(--surface3);border:1px solid var(--border);border-radius:var(--r)}
.binary-heading{font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--text3);margin-bottom:8px}
.binary-mask-bit{color:var(--text2)}
.binary-legend{margin-top:5px;font-size:10px;color:var(--text3)}
.detail-comment{color:var(--text3);font-size:10px;letter-spacing:.07em;margin-bottom:5px}
.detail-line{color:var(--text2)}
.binary-visual{padding:4px 0}
.binary-row{display:flex;align-items:center;gap:10px;padding:5px 0;border-bottom:1px solid var(--border)}
.binary-octet-label{color:var(--text3);font-size:11px;width:65px}
.binary-octet-value{color:var(--cyan);font-size:13px;font-weight:700;min-width:34px}
.binary-equals{color:var(--text3);font-size:10px}
.binary-bit-column{display:inline-flex;flex-direction:column;align-items:center;margin:0 2px}
.binary-weight{color:var(--text3);font-size:8px}
.binary-bit-one,.binary-bit-zero{font-size:12px;font-weight:600}
.binary-bit-one{color:var(--green)}
.binary-bit-zero{color:var(--text3)}
.binary-result{color:var(--amber);font-size:11px}
.detail-card{margin-top:10px;padding:10px 12px;background:var(--surface3);border:1px solid var(--border);border-radius:var(--r);font-size:12px}
.detail-heading{color:var(--text3);margin-bottom:5px;font-size:9px;letter-spacing:.1em;text-transform:uppercase}
.detail-label{color:var(--text3);width:90px;display:inline-block}
.vlan-tag-line{font-size:12px;line-height:2}
.vlan-equals{color:var(--text3);margin-left:10px}
.u-inline-02{position:relative}
.u-inline-03{color:var(--text3)}
.u-inline-08{margin-bottom:8px;font-size:10px;color:var(--text3);letter-spacing:.1em;text-transform:uppercase}
.u-inline-09{flex:3}
.u-inline-10{flex:2}
.u-inline-11{display:flex;align-items:flex-end}
.u-inline-12{width:100%}
.u-inline-13{margin-top:14px}
.u-inline-14{margin-top:12px;font-size:12px;color:var(--text2)}
.u-inline-15{align-items:flex-start}
.u-inline-16{padding-top:10px}
.u-inline-17{margin-top:10px;font-size:12px;color:var(--text2)}
.u-inline-18{margin-top:12px}
.u-inline-19{margin-top:10px;font-size:11px;color:var(--text2);line-height:1.8;overflow-x:auto}
.u-inline-20{margin-top:10px}
.u-inline-21{margin-top:10px;font-size:11px;color:var(--text2);line-height:2}
.u-inline-22{margin-bottom:12px}
.u-inline-23{display:block}
.u-inline-24{padding:0}
.privacy-nav{margin-top:12px}
.privacy-link{display:flex;align-items:center;padding:5px 12px 5px 14px;color:var(--text2);font-size:12px;border-left:2px solid transparent;text-decoration:none}
.privacy-link:hover,.privacy-link.active{color:var(--accent);background:rgba(88,166,255,.06);border-left-color:var(--accent)}
.privacy-content{max-width:820px;color:var(--text)}
.privacy-content section{margin:0 0 24px}
.privacy-content h2{margin:0 0 8px;color:var(--accent);font-size:1rem}
.privacy-content p{margin:0;line-height:1.7;color:var(--text2)}
.privacy-content .btn{margin-top:14px}
.privacy-notice{border-left:3px solid var(--border);padding:10px 14px}
.keyboard-hint{margin:8px 18px 0;color:var(--text3);font-size:11px}