/* UI Glossary — Global Styles */

/* Root variables */
:root{
  --bg: #0b0d12; --panel:#12151d; --card:#171b24; --muted:#7a8599; --text:#e6e9ef;
  --accent:#6aa3ff; --accent-2:#9b8cff; --ok:#3ddc97; --warn:#ffcc66; --err:#ff6b6b;
  --border:#232838; --chip:#20263b; --shadow: 0 6px 20px rgba(0,0,0,.35);
  --radius:12px; --radius-sm:8px; --radius-lg:16px; --focus: 0 0 0 3px rgba(106,163,255,.35);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Apple Color Emoji","Segoe UI Emoji";
  --range-track:#1a2030; --range-border:#2f3b54;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:linear-gradient(180deg,#0b0d12,#0c111b 50%, #0b0d12 100%);color:var(--text); font: 15px/1.5 var(--font)}
a{color:var(--accent); text-decoration:none}
a:focus,button:focus,[role="tab"]:focus,[data-chip]:focus{outline:none; box-shadow: var(--focus); border-radius:8px}
.container{max-width:1200px;margin:0 auto;padding:48px 24px}

/* Top Navigation Bar */
.topbar{position:sticky; top:0; z-index:50; backdrop-filter:saturate(1.3) blur(10px); background:rgba(11,13,18,.6); border-bottom:1px solid var(--border); overflow:visible}
.topbar__inner{display:flex; gap:16px; align-items:center; justify-content:space-between; padding:14px 24px; position:relative; max-width:100%; overflow:visible}
.brand{display:flex; align-items:center; gap:12px; font-weight:700; font-size:15px; overflow:hidden}
.brand__logo{width:28px; height:28px; border-radius:8px; background:linear-gradient(135deg,var(--accent),var(--accent-2)); box-shadow:var(--shadow); padding:2px; flex-shrink:0}
.brand__img{width:100%; height:100%; display:block; border-radius:6px; object-fit:cover; background:var(--panel)}
.brand__title{white-space:nowrap}
.nav__actions{display:flex; align-items:center; gap:16px}
.nav__links{display:flex; gap:16px; align-items:center}
.nav__links a{padding:7px 12px; border-radius:8px; font-size:13px; font-weight:500; transition:background .15s ease}
.nav__links a:hover{background:rgba(255,255,255,.08)}
.nav__links a[aria-current="page"]{background:rgba(106,163,255,.15); color:var(--accent); font-weight:600}
.nav__toggle{display:none; appearance:none; -webkit-appearance:none; border:1px solid var(--border); background:#141a28; color:var(--text); padding:0; border-radius:8px; cursor:pointer; position:relative; width:40px; height:36px; flex-shrink:0; -webkit-tap-highlight-color:transparent}
.nav__toggle .bar{position:absolute; width:20px; height:2px; left:50%; transform:translateX(-50%); background:var(--text); border-radius:2px; transition:transform .2s ease, opacity .2s ease; pointer-events:none}
.nav__toggle .bar.top{top:12px}
.nav__toggle .bar.middle{top:17px}
.nav__toggle .bar.bottom{top:22px}
.nav__toggle[aria-expanded="true"] .bar.top{transform:translateX(-50%) rotate(45deg); top:17px}
.nav__toggle[aria-expanded="true"] .bar.middle{opacity:0}
.nav__toggle[aria-expanded="true"] .bar.bottom{transform:translateX(-50%) rotate(-45deg); top:17px}

/* Subnav - Section Navigation */
.subnav{background:#0f1421; border-bottom:1px solid var(--border); position:sticky; top:63px; z-index:40}
.subnav__inner{display:flex; gap:10px; align-items:center; flex-wrap:wrap; padding:8px 24px}
.subnav a{font-size:13px; color:#aeb6c7; padding:6px 10px; border-radius:8px; font-weight:500; transition:background .15s ease, color .15s ease}
.subnav a:hover{background:rgba(255,255,255,.08); color:var(--text)}
.subnav a[aria-current="page"]{background:rgba(106,163,255,.12); color:var(--accent)}
.subnav__tools{margin-left:auto; display:flex; gap:8px; flex-wrap:wrap; align-items:center}

/* Language switcher */
.lang-switcher{position:relative}
.lang-switcher__btn{appearance:none;border:1px solid var(--border);background:#1b2130;color:var(--text);padding:6px 10px;border-radius:8px;cursor:pointer;font-size:12px;font-weight:600;min-width:42px;transition:background .15s ease}
.lang-switcher__btn:hover{background:#222a3c}
.lang-switcher__menu{position:absolute;right:0;top:calc(100% + 6px);background:#111623;border:1px solid var(--border);border-radius:10px;padding:6px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-6px) scale(.98);transition:opacity .18s ease, transform .18s ease, visibility 0s linear .18s;z-index:100;min-width:140px;max-height:300px;overflow-y:auto}
.lang-switcher__menu.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1);transition:opacity .18s ease, transform .18s ease}
.lang-switcher__item{appearance:none;border:none;background:transparent;color:var(--text);padding:8px 12px;border-radius:6px;cursor:pointer;font-size:13px;width:100%;text-align:left;transition:background .15s ease}
.lang-switcher__item:hover{background:rgba(255,255,255,.08)}
:root[data-theme="light"] .lang-switcher__btn{background:#f3f6fb;border-color:#dbe1ea}
:root[data-theme="light"] .lang-switcher__btn:hover{background:#e8eef7}
:root[data-theme="light"] .lang-switcher__menu{background:#ffffff;border-color:#dbe1ea}
:root[data-theme="light"] .lang-switcher__item:hover{background:rgba(106,163,255,.1)}

/* Theme switch (shared) */
#theme-switch-wrap .track{width:48px}
#theme-switch-wrap .ico{position:absolute; top:50%; transform:translateY(-50%); font-size:13px; color:#c8d1e1; opacity:.8; pointer-events:none}
#theme-switch-wrap .ico.sun{left:6px}
#theme-switch-wrap .ico.moon{right:6px}
/* nudge moon for centering */
#theme-switch-wrap .ico.moon{right:10px; transform:translate(1px,-50%)}
#theme-switch-wrap input:checked + .track .thumb{left:29px}
#theme-switch-wrap input:checked + .track .ico.sun{opacity:1}
#theme-switch-wrap input:not(:checked) + .track .ico.moon{opacity:1}
:root[data-theme="light"] #theme-switch-wrap .ico.sun{color:#d39c00; text-shadow:0 0 1px rgba(0,0,0,.25)}
:root:not([data-theme="light"]) #theme-switch-wrap .ico.sun{color:#ffdf6e; text-shadow:0 0 2px rgba(0,0,0,.6)}
/* place icon inside thumb */
#theme-switch-wrap .ico{display:none}
#theme-switch-wrap .thumb{position:absolute}
#theme-switch-wrap .thumb::after{content:'☾'; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); font-size:12px; color:#c8d1e1}
#theme-switch-wrap input:checked + .track .thumb::after{content:''}
.switch input{display:none}
.switch .track{width:40px;height:22px;border-radius:999px;background:#2a3245; position:relative; border:1px solid var(--border)}
.switch .thumb{position:absolute; top:50%; left:3px; transform:translateY(-50%); width:16px; height:16px; border-radius:50%; background:#c8d1e1; transition:all .2s}
.switch input:checked + .track{background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.switch input:checked + .track .thumb{left:21px; background:#0b0d12}

/* Layout & components */
.hero{display:grid; grid-template-columns: 1.1fr .9fr; gap:28px; align-items:center; margin-top:16px}
.hero h1{font-size:34px; line-height:1.15; margin:0 0 12px}
.hero p{color:var(--muted); margin:0 0 18px}
.btn{appearance:none;border:1px solid var(--border); background:#1b2130; color:var(--text); padding:10px 14px;border-radius:10px;cursor:pointer}
.btn:hover{background:#222a3c}
.btn.primary{border:none;background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#0b0d12; font-weight:700}
.btn.ghost{background:transparent;border:1px dashed var(--border)}
.cta-row{display:flex;gap:10px;flex-wrap:wrap}
.panel{background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow)}
.grid{display:grid; gap:16px}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:980px){.hero{grid-template-columns:1fr}.grid.cols-3{grid-template-columns:1fr 1fr}}
@media (max-width:680px){.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}}
.card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow); position:relative}
.card h3{margin:0 0 2px; font-size:16px}
.card p{margin:0;color:var(--muted)}
.label{position:absolute; top:10px; right:10px; font-size:12px; color:#aeb6c7; background:var(--chip); border:1px solid var(--border); padding:4px 8px; border-radius:999px}
.syn{font-size:12px; color:#9aa3b6; margin-top:6px}
.stack{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.input, select, textarea{width:100%; background:#141925; color:var(--text); border:1px solid var(--border); border-radius:10px; padding:10px}
.input:focus, select:focus, textarea:focus{outline:none; box-shadow: var(--focus)}
.row{display:grid; grid-template-columns:1fr 1fr; gap:10px}
.row-3{display:grid; grid-template-columns:repeat(3,1fr); gap:10px}
.field label{display:block; font-size:12px; color:#9aa3b6; margin-bottom:6px}
.checkbox,.radio,.switch{display:flex; align-items:center; gap:8px}
.table{width:100%; border-collapse:collapse; font-size:14px}
.table th,.table td{padding:10px;border-bottom:1px solid var(--border); text-align:left}
.table th{color:#aeb6c7; font-weight:600}
.badge{display:inline-block; padding:4px 8px; border-radius:999px; border:1px solid var(--border); background:var(--chip); font-size:12px}
.chip{display:inline-flex; align-items:center; gap:6px; padding:5px 8px; border-radius:999px; border:1px solid var(--border); background:#1b2130; font-size:12px}
.chip button{border:none;background:transparent;color:#aab3c6; cursor:pointer}
.tabs{display:flex; gap:6px; border-bottom:1px solid var(--border); margin-bottom:10px; flex-wrap:wrap}
.tab{padding:8px 12px; border-radius:10px 10px 0 0; border:1px solid transparent; cursor:pointer}
.tab[aria-selected="true"]{background:#1a2030; border-color:var(--border); border-bottom-color:#1a2030}
.accordion details{border:1px solid var(--border); border-radius:10px; padding:10px; background:#121827}
.accordion summary{cursor:pointer}
.progress{height:8px; background:#1a2131; border-radius:999px; overflow:hidden; border:1px solid var(--border)}
.progress > div{height:100%; background:linear-gradient(90deg,var(--accent),var(--accent-2)); width:62%}
.spinner{width:28px;height:28px;border-radius:50%; border:3px solid #2a3245; border-top-color:var(--accent); animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{height:12px;border-radius:6px;background:linear-gradient(90deg,#1a2030, #252c40, #1a2030); background-size:200% 100%; animation:shimmer 1.2s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.alert{padding:10px 12px;border-radius:10px;border:1px solid var(--border); display:flex; gap:8px; align-items:flex-start}
.alert.ok{background:#11231d;border-color:#1f3c2f}
.alert.warn{background:#2d250f;border-color:#3c3218}
.alert.err{background:#351a1a;border-color:#4a2323}
.tooltip{position:relative; display:inline-block}
.tooltip .tip{position:absolute; inset:auto auto 125% 50%; transform:translateX(-50%); background:#101522; border:1px solid var(--border); padding:6px 8px; border-radius:8px; font-size:12px; white-space:nowrap; opacity:0; pointer-events:none; transition:opacity .2s}
.tooltip:hover .tip{opacity:1}
.popover{position:relative}
.popover .pop{position:absolute; top:38px; left:0; background:#101522; border:1px solid var(--border); padding:10px; border-radius:10px; width:220px; display:none}
.popover.open .pop{display:block}
.modal-backdrop{position:fixed; inset:0; background:rgba(0,0,0,.5); display:none; align-items:center; justify-content:center; padding:24px}
.modal{background:var(--panel); border:1px solid var(--border); border-radius:var(--radius-lg); padding:18px; width:min(560px, 92vw); box-shadow:var(--shadow)}
.drawer{position:fixed; inset:0 auto 0 0; width:min(420px, 92vw); background:var(--panel); border-right:1px solid var(--border); translate:-100% 0; transition:translate .25s; box-shadow:var(--shadow); padding:16px; z-index:1000}
.drawer.open{translate:0 0}
.kbd{font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background:#0f1421; border:1px solid var(--border); padding:2px 6px; border-radius:6px; font-size:12px; color:#aeb6c7}
.footer{margin-top:32px; color:#8892a8}
.tiny{font-size:12px; color:#9aa3b6}
.section-title{display:flex; align-items:center; justify-content:space-between; gap:10px; margin:26px 0 10px}
.section-title h2{margin:0; font-size:18px}
.pill{display:inline-flex; gap:8px; align-items:center; padding:6px 10px; border-radius:999px; background:#111623; border:1px solid var(--border); color:#aeb6c7; font-size:12px}
.kbdrow{display:flex; gap:8px; flex-wrap:wrap}
.pagination{display:flex; gap:6px; align-items:center}
.pagination .pg{border:1px solid var(--border); background:#141a28; border-radius:8px; min-width:36px; height:36px; display:grid;place-items:center; cursor:pointer}
.pagination .pg[aria-current="page"]{background:#1f2636; border-color:#30384e; font-weight:700}
.breadcrumb{display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.breadcrumb span{color:#9aa3b6}
.carousel{position:relative; overflow:hidden; border-radius:12px; border:1px solid var(--border)}
.carousel__inner{display:flex; transition:transform .25s}
.carousel__slide{min-width:100%; padding:24px; background:#111623}
.carousel__nav{position:static; display:flex; gap:8px; justify-content:flex-end; padding:8px 8px 8px 8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
/* Toast styled to match .btn.primary gradient */
#toast{background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:#0b0d12; border:none}
/* Keep primary gradient on nav CTA hover */
.nav__links a.btn.primary:hover{background:linear-gradient(135deg,var(--accent),var(--accent-2))}
/* Anchor copy button */
.anchor-btn{appearance:none; border:none; background:transparent; color:#9aa3b6; cursor:pointer; padding:4px; border-radius:6px; margin-left:6px}
.anchor-btn:hover{color:#c4ccda}

/* Xray overlay */
.xray-dim{opacity:.2}
.xray-overlay{position:fixed; inset:0; pointer-events:auto; z-index:999; opacity:1; backdrop-filter:blur(2px); -webkit-backdrop-filter:blur(2px)}
.xray-overlay::before{content:''; position:absolute; inset:0; background:rgba(14,22,40,.8); z-index:0}
.xray-box{position:absolute; z-index:1; border-radius:10px; opacity:1}
.xray-level-1{border:2px solid #7690C9; outline:none; box-shadow:none}
.xray-level-2{border:2px solid #7690C9; outline:none; box-shadow:none}
.xray-level-3{outline:2px dashed #7690C9; box-shadow:0 0 0 2px rgba(118,144,201,.35)}
.xray-level-4{outline:1.5px dashed #7690C9; box-shadow:0 0 0 1.5px rgba(118,144,201,.28)}
.xray-label{position:absolute; z-index:2; top:-20px; left:0; background:#7690C9; color:#0b0d12; padding:2px 6px; border-radius:6px; font-size:11px; font-weight:800; letter-spacing:.03em; box-shadow:0 1px 0 rgba(0,0,0,.2)}

/* Light theme overrides */
:root[data-theme="light"]{
  --bg:#f7f9fc; --panel:#ffffff; --card:#ffffff; --muted:#5b677b; --text:#0b0d12;
  --border:#dbe1ea; --chip:#f0f3f9;
}
:root[data-theme="light"] body{background:linear-gradient(180deg,#f7f9fc,#eef2f8 50%, #f7f9fc 100%)}
:root[data-theme="light"] .btn{background:#f3f6fb; border-color:#dbe1ea; color:var(--text)}
:root[data-theme="light"] .btn:hover{background:#e8eef7}
:root[data-theme="light"] .panel{background:var(--panel); border-color:var(--border)}
:root[data-theme="light"] .card{background:var(--card); border-color:var(--border)}
:root[data-theme="light"] .chip{background:#f3f6fb; border-color:#dbe1ea}
:root[data-theme="light"] .topbar{background:rgba(255,255,255,.75); border-bottom-color:#dbe1ea}
:root[data-theme="light"] .nav__toggle{background:#f3f6fb; border-color:#dbe1ea}
:root[data-theme="light"] .nav__toggle .bar{background:#2f3b54}
:root[data-theme="light"] .subnav{background:#f3f6fb; border-bottom-color:#dbe1ea}
:root[data-theme="light"] .subnav a{color:#2f3b54}
:root[data-theme="light"] .subnav a:hover{color:var(--text)}
:root[data-theme="light"] .nav__links a[aria-current="page"]{background:rgba(106,163,255,.2)}
:root[data-theme="light"] .tab[aria-selected="true"]{background:#eef2f8; border-color:#dbe1ea; border-bottom-color:#eef2f8}
:root[data-theme="light"] .tooltip .tip{background:#ffffff; border-color:#dbe1ea; color:var(--text)}
:root[data-theme="light"] .popover .pop{background:#ffffff; border-color:#dbe1ea; color:var(--text)}
:root[data-theme="light"] .progress{background:#e9eef7; border-color:#dbe1ea}
:root[data-theme="light"] .spinner{border-color:#dbe1ea; border-top-color:var(--accent)}
:root[data-theme="light"] .skeleton{background:linear-gradient(90deg,#eef2f8, #e6ecf7, #eef2f8)}
:root[data-theme="light"] .carousel__slide{background:#f3f6fb}
:root[data-theme="light"] .alert.ok{background:#e7f5ef; border-color:#bfe3d1; color:#0b0d12}
:root[data-theme="light"] .alert.warn{background:#fff4d6; border-color:#f1d39c; color:#0b0d12}
:root[data-theme="light"] .alert.err{background:#fde7e7; border-color:#f5bcbc; color:#0b0d12}
:root[data-theme="light"] .pagination .pg{background:#ffffff; border-color:#dbe1ea; color:#0b0d12}
:root[data-theme="light"] .pagination .pg:hover{background:#f3f6fb}
:root[data-theme="light"] .pagination .pg[aria-current="page"]{background:#eef2f8; border-color:#cdd7e6; color:#0b0d12; font-weight:700}
:root[data-theme="light"] .accordion details{background:#ffffff; border-color:#dbe1ea; color:var(--text)}
:root[data-theme="light"] .accordion details[open]{background:#f7f9fc}
:root[data-theme="light"] .accordion summary{color:#0b0d12}
:root[data-theme="light"] .pill{background:#eef2f8; border-color:#cdd7e6; color:#2f3b54}
/* Dark theme helpers */
.card .panel{background:#1a2030; border-color:#2f3b54}
.input, select, textarea{background:#1a2030; border-color:#2f3b54; color:var(--text)}
.input::placeholder, textarea::placeholder{color:#aeb6c7}
.radio, .checkbox{background:#121a2a; border:1px solid #2f3b54; padding:6px 8px; border-radius:8px}
#combo-list{background:#1a2030 !important; border-color:#2f3b54 !important}
input[type="range"]{appearance:none; height:6px; border:1px solid var(--range-border); border-radius:999px; background:
  linear-gradient(90deg, var(--accent), var(--accent)) 0/var(--range-progress, 0%) 100% no-repeat,
  var(--range-track);
}
input[type="range"]::-webkit-slider-thumb{appearance:none; width:14px; height:14px; border-radius:50%; background:#c8d1e1; border:1px solid #2f3b54}
input[type="range"]::-moz-range-thumb{width:14px; height:14px; border-radius:50%; background:#c8d1e1; border:1px solid #2f3b54}
:root[data-theme="light"] .checkbox, :root[data-theme="light"] .radio{background:#ffffff; border:1px solid #dbe1ea; color:var(--text)}
:root[data-theme="light"] .switch .track{background:#e9eef7; border-color:#cdd7e6}
:root[data-theme="light"] .switch .thumb{background:#ffffff}
:root[data-theme="light"] input[type="range"]{--range-track:#e9eef7; --range-border:#cdd7e6}
:root[data-theme="light"] input[type="range"]::-webkit-slider-thumb{background:#ffffff; border:1px solid var(--range-border)}
:root[data-theme="light"] input[type="range"]::-moz-range-thumb{background:#ffffff; border:1px solid var(--range-border)}

/* Light theme standardization for Architecture page */
:root[data-theme="light"] .canvas.panel#canvas{background:repeating-linear-gradient(45deg, #f3f6fb 0 20px, #eef2f8 20px 40px)}
:root[data-theme="light"] .textarea{background:#ffffff; color:var(--text); border-color:#dbe1ea}
:root[data-theme="light"] .item{background:#ffffff; border-color:#dbe1ea}
/* Light theme nested panels */
:root[data-theme="light"] .card .panel{background:#f8f9fc; border-color:#dbe1ea}
:root[data-theme="light"] pre{background:#f8f9fc; border-color:#dbe1ea; color:#2f3b54}

/* Architecture page specifics */
.arch-grid{display:grid; grid-template-columns:280px 1fr; gap:12px; max-width:none; padding:12px 12px 48px 12px; height:calc(100vh - 120px); overflow:hidden}
.palette{display:grid;gap:10px; overflow-y:auto; max-height:100%}
.section-title{display:flex;align-items:center;justify-content:space-between;margin:6px 0 8px}
.section-title h2{margin:0;font-size:16px}
.item{display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--border);background:#141a28;border-radius:10px;cursor:grab}
.item .dot{width:10px;height:10px;border-radius:50%}
.category{display:grid;gap:8px}
/* Canvas section wrapper */
.canvas-section{display:flex;flex-direction:column;gap:0; height:100%; min-height:0; width:100%; overflow:hidden}
/* Make the canvas area scrollable and pannable */
.canvas-wrap{position:relative;height:100%;width:100%;min-height:0;min-width:0;overflow:auto;cursor:grab;flex:1}
.canvas-wrap.panning{cursor:grabbing}
/* The drawing surface grows; nodes are absolutely positioned within */
.canvas.panel#canvas{position:relative;width:2400px;height:1800px;border:1px dashed var(--border);border-radius:12px;background:repeating-linear-gradient(45deg, #101520 0 20px, #0f141e 20px 40px)}
.mobile-overlay{display:none}
.node{position:absolute;min-width:140px;max-width:240px;padding:10px;border-radius:12px;border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow);cursor:move}
.node header{display:flex;align-items:center;justify-content:space-between;gap:6px}
.node h4{margin:0;font-size:14px}
.node .type{font-size:11px;color:#aeb6c7}
.node footer{display:flex;gap:6px;margin-top:8px}
.port{width:12px;height:12px;border-radius:50%;background:var(--accent);display:inline-block;transition:transform .15s ease,box-shadow .15s ease}
.port-in{cursor:default;opacity:.6}
.port-out{cursor:crosshair}
.port-out:hover{transform:scale(1.3);box-shadow:0 0 0 3px rgba(106,163,255,.3)}
.selected{outline:2px solid var(--accent)}
svg.wires{position:absolute;inset:0;width:100%;height:100%;display:block}
.connection-line{pointer-events:auto}
.textarea{width:100%;min-height:140px;background:#0f1421;border:1px solid var(--border);border-radius:10px;color:var(--text);padding:10px;font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}

/* Group overlay */
.group-box{position:absolute; border:2px dashed rgba(106,163,255,.6); border-radius:16px; background:transparent; pointer-events:none; z-index:0}
.group-label{position:absolute; top:-12px; left:12px; transform:translateY(-100%); background:var(--chip); border:1px solid var(--border); color:#aeb6c7; padding:4px 8px; border-radius:999px; font-size:12px}

/* Database page helpers */
.legend{display:flex;gap:8px;flex-wrap:wrap}
.diagram{width:100%;height:180px;border:1px dashed var(--border);border-radius:10px;display:grid;place-items:center;color:#99a3b8;margin-top:10px}
pre, code{font-family:var(--mono);font-size:13px}
pre{background:#0f1421;border:1px solid var(--border);border-radius:10px;padding:12px;overflow:auto;margin:10px 0 0 0}
.toggle{display:flex;gap:8px;align-items:center}

/* Responsive Navigation */
@media (max-width:860px){
  .topbar__inner{padding:12px 16px; gap:8px}
  .brand{flex:1; min-width:0}
  .brand__title{font-size:14px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
  .nav__toggle{
    display:inline-flex !important;
    align-items:center;
    justify-content:center;
    flex-direction:column;
  }
  .nav__actions{position:relative; display:flex; align-items:center; gap:8px; flex-wrap:nowrap; flex-shrink:0}
  .nav__links{display:flex; position:absolute; right:0; top:calc(100% + 8px); background:#111623; border:1px solid var(--border); border-radius:10px; padding:10px; box-shadow:var(--shadow); flex-direction:column; gap:6px; opacity:0; visibility:hidden; pointer-events:none; transform:translateY(-6px) scale(.98); transition:opacity .18s ease, transform .18s ease, visibility 0s linear .18s; will-change:transform, opacity; transform-origin:top right; min-width:160px; z-index:100}
  .nav__links.open{opacity:1; visibility:visible; pointer-events:auto; transform:translateY(0) scale(1); transition:opacity .18s ease, transform .18s ease}
  .nav__links a{padding:10px 14px; width:100%}
  :root[data-theme="light"] .nav__links{background:#ffffff}
  .arch-grid{grid-template-columns:1fr; gap:16px; height:auto}
  .palette{position:static; max-height:300px}
  .canvas-section{height:70vh}
  /* Show mobile overlay on small screens */
  .canvas-section{position:relative}
  .mobile-overlay{position:absolute; inset:0; display:grid; place-items:center; background:rgba(11,13,18,.95); z-index:1000; pointer-events:auto}
  :root[data-theme="light"] .mobile-overlay{background:rgba(247,249,252,.95)}
  .mobile-overlay__inner{background:var(--panel); border:1px solid var(--border); border-radius:12px; padding:20px 24px; text-align:center; box-shadow:var(--shadow); max-width:320px}
  .mobile-overlay__inner h3{margin:0 0 8px; font-size:16px}
  .mobile-overlay__inner p{margin:0; color:var(--muted); font-size:14px}
}

/* Extra small screens */
@media (max-width:480px){
  .topbar__inner{padding:10px 12px}
  .brand__title{font-size:13px}
  .nav__actions{gap:8px}
}