/* BlankBoard iON v2.0 — Complete Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Space+Mono:wght@400;700&display=swap');

/* ── VISE Quotient Colors ─────────────────────────────────────────────── */
:root {
  --q-iq:#4f8ef7;--q-eq:#fc5c7d;--q-frq:#c9a84c;--q-cq:#56e0a0;
  --q-shq:#f97316;--q-sq:#a78bfa;--q-aq:#22d3ee;--q-arq:#f0e24a;--q-eeq:#4ade80;

  /* Light theme */
  --bg:#ffffff;--bg-2:#f5f5f5;--bg-3:#ebebeb;
  --surface:#ffffff;--surface-2:#f9f9f9;
  --border:#e0e0e0;--border-2:#d0d0d0;
  --text:#0a0a0a;--text-2:#4a4a4a;--text-3:#888888;
  --accent:#0a0a0a;--accent-inv:#ffffff;--accent-hover:#333333;
  --danger:#cc0000;--success:#008800;--warning:#b06000;
  --shadow-sm:0 1px 3px rgba(0,0,0,.08);--shadow-md:0 4px 16px rgba(0,0,0,.10);--shadow-lg:0 8px 32px rgba(0,0,0,.13);
  --radius-sm:6px;--radius-md:12px;--radius-lg:20px;
  --font:'DM Sans',system-ui,sans-serif;--font-mono:'Space Mono',monospace;
  --transition:.18s ease;--sidebar-w:260px;
}
[data-theme="dark"] {
  --bg:#0a0a0a;--bg-2:#141414;--bg-3:#1f1f1f;
  --surface:#141414;--surface-2:#1a1a1a;
  --border:#2a2a2a;--border-2:#383838;
  --text:#f0f0f0;--text-2:#b0b0b0;--text-3:#666666;
  --accent:#f0f0f0;--accent-inv:#0a0a0a;--accent-hover:#cccccc;
  --shadow-sm:0 1px 3px rgba(0,0,0,.4);--shadow-md:0 4px 16px rgba(0,0,0,.5);--shadow-lg:0 8px 32px rgba(0,0,0,.6);
}

/* ── Reset ────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-tap-highlight-color:transparent}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100dvh;line-height:1.5;overflow-x:hidden;transition:background var(--transition),color var(--transition)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:var(--font);cursor:pointer;border:none;background:none}
input,textarea,select{font-family:var(--font)}
::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:99px}

/* ── Typography ───────────────────────────────────────────────────────── */
h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;line-height:1.15;letter-spacing:-.03em}
h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:600;line-height:1.2;letter-spacing:-.02em}
h3{font-size:1.2rem;font-weight:600;letter-spacing:-.01em}
h4{font-size:1rem;font-weight:600}
p{color:var(--text-2);line-height:1.65}

/* ── Shell Layout ─────────────────────────────────────────────────────── */
.app-shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;height:100dvh;overflow:hidden}
.main-content{overflow-y:auto;height:100dvh;display:flex;flex-direction:column}

/* ── Sidebar ──────────────────────────────────────────────────────────── */
.sidebar{background:var(--bg-2);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;position:sticky;top:0;height:100dvh;transition:transform var(--transition);z-index:100}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:18px 16px 14px;border-bottom:1px solid var(--border)}
.sidebar-logo-mark{width:32px;height:32px;background:var(--text);border-radius:8px;display:grid;place-items:center;flex-shrink:0}
.sidebar-logo-mark svg{width:17px;height:17px;fill:var(--bg)}
.sidebar-logo-text{font-weight:700;font-size:.9rem;letter-spacing:-.02em}
.sidebar-logo-sub{font-size:.62rem;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase}
.sidebar-section{padding:8px 8px 0}
.sidebar-section-label{font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);padding:8px 8px 4px}
.sidebar-nav{list-style:none;display:flex;flex-direction:column;gap:1px}
.sidebar-nav a,.sidebar-nav button{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;color:var(--text-2);transition:background var(--transition),color var(--transition);width:100%;text-align:left}
.sidebar-nav a:hover,.sidebar-nav button:hover{background:var(--bg-3);color:var(--text)}
.sidebar-nav a.active,.sidebar-nav button.active{background:var(--text);color:var(--bg)}
.nav-icon{width:16px;height:16px;flex-shrink:0;opacity:.7}
.sidebar-nav a.active .nav-icon,.sidebar-nav button.active .nav-icon{opacity:1}
.sidebar-boards{flex:1;overflow-y:auto;padding:0 8px}
.sidebar-board-item{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:var(--radius-sm);font-size:.83rem;color:var(--text-2);cursor:pointer;transition:background var(--transition);white-space:nowrap;overflow:hidden}
.sidebar-board-item:hover{background:var(--bg-3)}
.sidebar-board-item.active{background:var(--bg-3);color:var(--text);font-weight:500}
.sidebar-bottom{padding:10px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:5px}
.user-pill{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition)}
.user-pill:hover{background:var(--bg-3)}
.user-avatar{width:30px;height:30px;border-radius:50%;background:var(--border-2);overflow:hidden;flex-shrink:0;display:grid;place-items:center;font-weight:700;font-size:.8rem}
.user-avatar img{width:100%;height:100%;object-fit:cover}
.user-name{font-size:.83rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.plan-badge{display:inline-flex;align-items:center;padding:1px 6px;border-radius:99px;font-size:.62rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--text);color:var(--bg)}
.plan-badge.seeker{background:var(--border-2);color:var(--text-2)}
.plan-badge.silver{background:#888;color:#fff}
.plan-badge.gold{background:#b8860b;color:#fff}

/* ── Topbar ───────────────────────────────────────────────────────────── */
.topbar{display:flex;align-items:center;gap:10px;padding:12px 22px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:50;backdrop-filter:blur(8px)}
.topbar-title{font-weight:600;font-size:.95rem;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;transition:all var(--transition);cursor:pointer;white-space:nowrap;border:none;font-family:var(--font)}
.btn-primary{background:var(--text);color:var(--bg)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{background:var(--bg-3);color:var(--text)}
.btn-secondary:hover{background:var(--border-2)}
.btn-ghost{background:transparent;color:var(--text-2);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--bg-2);color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{padding:5px 11px;font-size:.78rem}
.btn-xs{padding:3px 8px;font-size:.72rem}
.btn-icon{padding:7px;border-radius:var(--radius-sm);background:transparent;color:var(--text-2)}
.btn-icon:hover{background:var(--bg-3);color:var(--text)}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ── Cards ────────────────────────────────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;transition:box-shadow var(--transition),border-color var(--transition)}
.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-2)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}

/* ── Board Cards ──────────────────────────────────────────────────────── */
.board-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;cursor:pointer;transition:all var(--transition)}
.board-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--border-2)}
.board-card-header{height:72px;background:var(--bg-3);display:flex;align-items:center;justify-content:center;font-size:2rem;position:relative}
.board-card-body{padding:12px 14px}
.board-card-title{font-weight:600;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:3px}
.board-card-meta{font-size:.72rem;color:var(--text-3);display:flex;gap:10px;align-items:center}
.board-card-cres{font-size:.7rem;background:var(--bg-3);padding:1px 6px;border-radius:99px;color:var(--text-3)}

/* ── Board Layout (3-panel) ───────────────────────────────────────────── */
.board-layout{display:grid;grid-template-columns:280px 1fr 300px;height:calc(100dvh - 49px);overflow:hidden}
.board-panel{overflow-y:auto;border-right:1px solid var(--border);display:flex;flex-direction:column}
.board-panel:last-child{border-right:none;border-left:1px solid var(--border)}
.board-panel-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:5;flex-shrink:0}
.board-panel-title{font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3)}

/* ── Source Items ─────────────────────────────────────────────────────── */
.source-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);transition:background var(--transition);cursor:pointer}
.source-item:hover{background:var(--bg-2)}
.source-item.unprocessed{border-left:3px solid var(--warning);opacity:.8}
.source-item.processed{border-left:3px solid var(--success)}
.source-item.error{border-left:3px solid var(--danger)}
.source-icon{width:34px;height:34px;border-radius:var(--radius-sm);background:var(--bg-3);display:grid;place-items:center;font-size:1rem;flex-shrink:0}
.source-info{flex:1;min-width:0}
.source-title{font-size:.83rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.source-meta{font-size:.68rem;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;margin-top:2px}
.source-status{font-size:.65rem;font-weight:600;padding:1px 5px;border-radius:3px}
.source-status.ok{background:rgba(0,136,0,.12);color:var(--success)}
.source-status.pending{background:rgba(176,96,0,.12);color:var(--warning)}
.source-status.err{background:rgba(204,0,0,.12);color:var(--danger)}

/* ── Source Upload Tabs ───────────────────────────────────────────────── */
.source-tabs{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:14px}
.source-tab{display:flex;align-items:center;gap:5px;padding:6px 12px;border:1px solid var(--border);border-radius:99px;font-size:.77rem;font-weight:500;cursor:pointer;transition:all var(--transition);background:transparent;color:var(--text-2)}
.source-tab:hover,.source-tab.active{background:var(--text);color:var(--bg);border-color:var(--text)}

/* ── Dropzone ─────────────────────────────────────────────────────────── */
.dropzone{border:2px dashed var(--border-2);border-radius:var(--radius-md);padding:32px 20px;text-align:center;cursor:pointer;transition:all var(--transition)}
.dropzone:hover,.dropzone.drag-over{border-color:var(--text);background:var(--bg-2)}
.dropzone-icon{font-size:2rem;margin-bottom:10px}
.dropzone-text{font-size:.85rem;color:var(--text-2)}

/* ── Chat ─────────────────────────────────────────────────────────────── */
.chat-container{display:flex;flex-direction:column;flex:1;overflow:hidden}
.chat-messages{flex:1;overflow-y:auto;padding:16px 18px;display:flex;flex-direction:column;gap:12px}
.chat-msg{display:flex;gap:10px;max-width:90%}
.chat-msg.user{align-self:flex-end;flex-direction:row-reverse}
.chat-msg.assistant{align-self:flex-start}
.chat-bubble{padding:10px 14px;border-radius:var(--radius-md);font-size:.875rem;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.chat-msg.user .chat-bubble{background:var(--text);color:var(--bg);border-radius:var(--radius-md) var(--radius-md) 4px var(--radius-md)}
.chat-msg.assistant .chat-bubble{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-md) var(--radius-md) var(--radius-md) 4px}
.chat-input-area{padding:12px 16px;border-top:1px solid var(--border);background:var(--bg);flex-shrink:0}
.chat-input-row{display:flex;gap:8px;align-items:flex-end}
.chat-input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-2);color:var(--text);font-size:.875rem;resize:none;min-height:42px;max-height:140px;line-height:1.5;transition:border-color var(--transition)}
.chat-input:focus{outline:none;border-color:var(--text)}
.chat-source-warning{font-size:.75rem;color:var(--warning);background:rgba(176,96,0,.1);border:1px solid rgba(176,96,0,.3);border-radius:6px;padding:6px 10px;margin-bottom:8px;display:flex;align-items:center;gap:6px}

/* ── Tools Panel ──────────────────────────────────────────────────────── */
.tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:12px}
.tool-card{border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 10px;text-align:center;cursor:pointer;transition:all var(--transition);position:relative}
.tool-card:hover:not(.locked){border-color:var(--text);background:var(--bg-2);transform:translateY(-1px)}
.tool-card.locked{opacity:.5;cursor:not-allowed}
.tool-icon{font-size:1.5rem;margin-bottom:6px}
.tool-name{font-size:.75rem;font-weight:600;line-height:1.3}
.lock-badge{display:block;font-size:.6rem;color:var(--text-3);margin-top:3px}
.tool-card.active-tool{border-color:var(--success);background:rgba(0,136,0,.06)}

/* ── Modal ────────────────────────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(4px);display:grid;place-items:center;z-index:1000;padding:20px;animation:fadeIn .15s ease}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;width:100%;max-width:560px;max-height:90dvh;overflow-y:auto;animation:slideUp .2s ease}
.modal-lg{max-width:780px}
.modal-xl{max-width:960px}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.modal-title{font-size:1.05rem;font-weight:700}

/* ── Forms ────────────────────────────────────────────────────────────── */
.form-group{display:flex;flex-direction:column;gap:5px}
.form-label{font-size:.8rem;font-weight:600;color:var(--text-2)}
.form-input,.form-select,.form-textarea{padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-2);color:var(--text);font-size:.875rem;transition:border-color var(--transition)}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--text)}
.form-textarea{resize:vertical;min-height:90px}

/* ── Quotient Radar & Cards ───────────────────────────────────────────── */
.quotient-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.quotient-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 12px;text-align:center;transition:all var(--transition);cursor:default}
.quotient-card:hover{box-shadow:var(--shadow-md)}
.quotient-icon{font-size:1.4rem;margin-bottom:6px}
.quotient-name{font-size:.7rem;color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.quotient-score{font-size:1.6rem;font-weight:700;letter-spacing:-.03em}
.quotient-level{font-size:.7rem;color:var(--text-3);margin-top:2px}
.quotient-bar{height:3px;background:var(--border);border-radius:99px;margin-top:8px;overflow:hidden}
.quotient-bar-fill{height:100%;border-radius:99px;transition:width .6s ease}

/* ── Index Calculator ─────────────────────────────────────────────────── */
.index-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;transition:all var(--transition);cursor:pointer}
.index-card:hover{border-color:var(--text);background:var(--bg-2)}
.index-card-name{font-weight:600;font-size:.9rem;margin-bottom:4px}
.index-card-formula{font-family:var(--font-mono);font-size:.72rem;color:var(--text-3);background:var(--bg-3);padding:4px 8px;border-radius:4px;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.index-result{font-size:2rem;font-weight:700;letter-spacing:-.03em;color:var(--text)}
.index-result-label{font-size:.75rem;color:var(--text-3);text-transform:uppercase;letter-spacing:.06em}
.index-ai-analysis{font-size:.82rem;color:var(--text-2);line-height:1.65;padding:12px;background:var(--bg-2);border-radius:8px;border-left:3px solid var(--border-2)}
.watermark-tag{font-size:.65rem;color:var(--text-3);font-style:italic;margin-top:8px}

/* ── Growth Map ───────────────────────────────────────────────────────── */
.growth-map-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.cres-badge{display:inline-flex;align-items:center;gap:8px;background:var(--bg-2);border:1px solid var(--border);border-radius:99px;padding:6px 14px;font-size:.8rem;font-weight:600}
.cres-value{font-size:1.1rem;font-weight:700}

/* ── Assets ───────────────────────────────────────────────────────────── */
.asset-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px;transition:all var(--transition);cursor:pointer;position:relative}
.asset-card:hover{box-shadow:var(--shadow-md);border-color:var(--border-2)}
.asset-type-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;background:var(--bg-3);border-radius:99px;font-size:.68rem;font-weight:600;margin-bottom:8px;text-transform:uppercase;letter-spacing:.05em}
.asset-watermark{position:absolute;bottom:10px;right:12px;font-size:.6rem;color:var(--text-3);font-style:italic;opacity:.6}

/* ── File Manager ─────────────────────────────────────────────────────── */
.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.file-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:12px;text-align:center;cursor:pointer;transition:all var(--transition);position:relative;overflow:hidden}
.file-card:hover{border-color:var(--text);background:var(--bg-2)}
.file-card.favorite::after{content:'★';position:absolute;top:5px;right:7px;font-size:.75rem;color:#c9a84c}
.file-icon{font-size:2rem;margin-bottom:8px}
.file-name{font-size:.75rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-size{font-size:.68rem;color:var(--text-3);margin-top:2px}
.folder-tab{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--border);border-radius:99px;font-size:.78rem;cursor:pointer;transition:all var(--transition)}
.folder-tab:hover,.folder-tab.active{background:var(--text);color:var(--bg);border-color:var(--text)}

/* ── Pricing ──────────────────────────────────────────────────────────── */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}
.pricing-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:22px 18px;transition:all var(--transition);position:relative}
.pricing-card:hover{border-color:var(--text)}
.pricing-card.featured{border-color:var(--text);border-width:2px}
.pricing-badge{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:var(--text);color:var(--bg);padding:2px 10px;border-radius:99px;font-size:.67rem;font-weight:700;letter-spacing:.06em}
.pricing-name{font-size:.75rem;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.1em;margin-bottom:5px}
.pricing-price{font-size:1.9rem;font-weight:700;letter-spacing:-.03em;margin-bottom:3px}
.pricing-price span{font-size:.85rem;font-weight:400;color:var(--text-3)}
.pricing-features{list-style:none;margin:14px 0;display:flex;flex-direction:column;gap:7px}
.pricing-features li{font-size:.8rem;color:var(--text-2);display:flex;gap:7px;align-items:flex-start}
.pricing-features li::before{content:"✓";font-weight:700;color:var(--text);flex-shrink:0}
.pricing-features li.no::before{content:"×";color:var(--text-3)}
.pricing-features li.no{opacity:.55}

/* ── Flashcard ────────────────────────────────────────────────────────── */
.flashcard-scene{perspective:1000px;width:100%;max-width:480px;margin:0 auto;cursor:pointer}
.flashcard{width:100%;aspect-ratio:4/3;position:relative;transform-style:preserve-3d;transition:transform .5s ease}
.flashcard.flipped{transform:rotateY(180deg)}
.flashcard-face{position:absolute;inset:0;backface-visibility:hidden;border:2px solid var(--border);border-radius:var(--radius-lg);display:grid;place-items:center;padding:28px;text-align:center;background:var(--surface)}
.flashcard-face.back{transform:rotateY(180deg);background:var(--bg-2)}
.flashcard-label{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin-bottom:12px}
.flashcard-text{font-size:1.05rem;font-weight:500;line-height:1.5}

/* ── Quiz ─────────────────────────────────────────────────────────────── */
.quiz-option{padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:.875rem;transition:all var(--transition);display:flex;gap:10px;align-items:flex-start}
.quiz-option:hover{border-color:var(--text)}
.quiz-option.selected{border-color:var(--text);background:var(--bg-2)}
.quiz-option.correct{border-color:var(--success);background:rgba(0,136,0,.06)}
.quiz-option.wrong{border-color:var(--danger);background:rgba(204,0,0,.06)}

/* ── ION Coach ────────────────────────────────────────────────────────── */
.ion-header{background:var(--bg-2);border-bottom:1px solid var(--border);padding:16px 20px}
.ion-brand{display:flex;align-items:center;gap:10px}
.ion-orb{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--text) 0%,var(--border-2) 100%);display:grid;place-items:center;font-weight:700;font-size:.9rem;color:var(--bg);flex-shrink:0;animation:pulse 3s ease-in-out infinite}
.ion-title{font-weight:700;font-size:1rem}
.ion-subtitle{font-size:.72rem;color:var(--text-3)}
.quotient-update-toast{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--success);background:rgba(0,136,0,.1);border:1px solid rgba(0,136,0,.2);border-radius:6px;padding:6px 10px;margin-top:6px;animation:slideUp .3s ease}

/* ── Mind Map Canvas ──────────────────────────────────────────────────── */
#mindmap-canvas{width:100%;border-radius:var(--radius-md);border:1px solid var(--border);cursor:grab;max-height:440px}

/* ── Concept Map ──────────────────────────────────────────────────────── */
#conceptmap-canvas{width:100%;border-radius:var(--radius-md);border:1px solid var(--border)}

/* ── Infographic ──────────────────────────────────────────────────────── */
.infographic-card{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.infographic-header{background:var(--text);color:var(--bg);padding:18px 22px}
.infographic-header h2{color:var(--bg);font-size:1.15rem;margin:0}
.infographic-header p{color:rgba(255,255,255,.7);font-size:.8rem;margin:3px 0 0}
.infographic-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px;padding:16px 22px;background:var(--bg-2)}
.infographic-stat{text-align:center}
.infographic-stat-val{font-size:1.5rem;font-weight:700}
.infographic-stat-label{font-size:.7rem;color:var(--text-3)}
.infographic-section{padding:14px 22px;border-bottom:1px solid var(--border)}
.infographic-section h3{font-size:.9rem;margin-bottom:8px;display:flex;gap:6px;align-items:center}
.infographic-points li{font-size:.83rem;color:var(--text-2);padding-left:14px;position:relative;margin-bottom:4px}
.infographic-points li::before{content:"›";position:absolute;left:0;color:var(--text);font-weight:700}
.infographic-wm{padding:10px 22px;font-size:.7rem;color:var(--text-3);font-style:italic;border-top:1px solid var(--border);text-align:right}

/* ── Usage Bars ───────────────────────────────────────────────────────── */
.usage-bar-wrap{margin-bottom:8px}
.usage-bar-label{display:flex;justify-content:space-between;font-size:.76rem;color:var(--text-2);margin-bottom:4px}
.usage-bar{height:4px;background:var(--bg-3);border-radius:99px;overflow:hidden}
.usage-bar-fill{height:100%;background:var(--text);border-radius:99px;transition:width .5s ease}
.usage-bar-fill.warn{background:var(--warning)}
.usage-bar-fill.limit{background:var(--danger)}

/* ── Toast ────────────────────────────────────────────────────────────── */
#toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:7px;z-index:9999}
.toast{background:var(--text);color:var(--bg);padding:10px 16px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;box-shadow:var(--shadow-lg);animation:slideUp .2s ease;max-width:300px}
.toast.error{background:var(--danger);color:#fff}
.toast.success{background:var(--success);color:#fff}
.toast.warning{background:var(--warning);color:#fff}

/* ── Loader ───────────────────────────────────────────────────────────── */
.loader{width:18px;height:18px;border:2px solid var(--border-2);border-top-color:var(--text);border-radius:50%;animation:spin .6s linear infinite;display:inline-block;flex-shrink:0}
.loader-lg{width:36px;height:36px;border-width:3px}
.loader-page{display:grid;place-items:center;height:180px}

/* ── Empty State ──────────────────────────────────────────────────────── */
.empty-state{text-align:center;padding:48px 20px;color:var(--text-3)}
.empty-icon{font-size:2.8rem;margin-bottom:14px;opacity:.5}
.empty-title{font-size:1.05rem;font-weight:600;color:var(--text-2);margin-bottom:7px}
.empty-desc{font-size:.85rem;margin-bottom:18px;max-width:340px;margin-left:auto;margin-right:auto}

/* ── Login ────────────────────────────────────────────────────────────── */
.login-page{min-height:100dvh;display:grid;place-items:center;background:var(--bg);padding:20px}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 36px;width:100%;max-width:400px;text-align:center}
.login-logo-mark{width:50px;height:50px;background:var(--text);border-radius:13px;display:grid;place-items:center;margin:0 auto 14px}
.login-logo-mark svg{width:26px;height:26px;fill:var(--bg)}
.login-title{font-size:1.45rem;font-weight:700;letter-spacing:-.025em;margin-bottom:5px}
.login-sub{font-size:.83rem;color:var(--text-3);margin-bottom:28px}
.login-btns{display:flex;flex-direction:column;gap:9px}
.login-btn{display:flex;align-items:center;gap:11px;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.875rem;font-weight:600;cursor:pointer;transition:all var(--transition);background:var(--bg-2);color:var(--text);font-family:var(--font);text-decoration:none;justify-content:center}
.login-btn:hover{border-color:var(--text);background:var(--bg-3)}
.login-divider{display:flex;align-items:center;gap:10px;color:var(--text-3);font-size:.77rem}
.login-divider::before,.login-divider::after{content:'';flex:1;height:1px;background:var(--border)}
.login-footer{margin-top:24px;font-size:.75rem;color:var(--text-3)}
.login-footer a{color:var(--text-2);text-decoration:underline}

/* ── Tabs ─────────────────────────────────────────────────────────────── */
.tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:18px}
.tab-btn{padding:9px 16px;font-size:.85rem;font-weight:500;color:var(--text-3);border-bottom:2px solid transparent;cursor:pointer;transition:all var(--transition);font-family:var(--font);background:transparent;margin-bottom:-1px}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--text);border-bottom-color:var(--text);font-weight:600}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ── Page ─────────────────────────────────────────────────────────────── */
.page{padding:22px;flex:1}
.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.page-title{font-size:1.35rem;font-weight:700;letter-spacing:-.02em}
.page-sub{font-size:.83rem;color:var(--text-3);margin-top:3px}

/* ── Watermark ────────────────────────────────────────────────────────── */
.ivirth-watermark{font-size:.68rem;color:var(--text-3);font-style:italic;display:flex;align-items:center;gap:5px;margin-top:8px}
.ivirth-watermark::before{content:'— '}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width:900px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);width:var(--sidebar-w);z-index:200;height:100dvh}
  .sidebar.open{transform:translateX(0);box-shadow:var(--shadow-lg)}
  .board-layout{grid-template-columns:1fr}
  .board-panel{display:none;height:calc(100dvh - 96px)}
  .board-panel.mob-active{display:flex}
  .growth-map-wrap{grid-template-columns:1fr}
  .page{padding:16px}
  .topbar{padding:10px 14px}
}
.overlay-mobile{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:190}
@media (max-width:900px){.overlay-mobile.show{display:block}}

/* ── Animations ───────────────────────────────────────────────────────── */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}
.animate-in{animation:slideUp .25s ease forwards}

/* ── Utilities ────────────────────────────────────────────────────────── */
.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}
.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}
.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-muted{color:var(--text-3)}
.font-bold{font-weight:700}.font-mono{font-family:var(--font-mono)}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.w-full{width:100%}
.hidden{display:none!important}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.divider{height:1px;background:var(--border);margin:16px 0}

/* ── Research Paper & Academic Styles ────────────────────────────────────── */
.research-format-card{border:1.5px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;cursor:pointer;transition:all var(--transition)}
.research-format-card:hover,.research-format-card.selected{border-color:var(--text);background:var(--bg-2)}
.research-format-icon{font-size:1.5rem;margin-bottom:8px}
.research-format-name{font-weight:600;font-size:.88rem;margin-bottom:4px}
.research-format-desc{font-size:.75rem;color:var(--text-3);line-height:1.5}

/* Research proposal flowchart */
.proposal-flow-step{display:flex;align-items:center;gap:12px;position:relative}
.proposal-flow-node{flex:0 0 160px;padding:10px 14px;border-radius:10px;text-align:center;border:2px solid;font-weight:700;font-size:.85rem}
.proposal-flow-arrow{display:flex;justify-content:center;height:20px;color:var(--text-3);font-size:1.2rem}
.proposal-flow-left{flex:1;text-align:right;font-size:.72rem;color:var(--text-3);display:flex;flex-direction:column;gap:3px;padding-right:10px}
.proposal-flow-right{flex:1;font-size:.72rem;color:var(--text-3);display:flex;flex-direction:column;gap:3px;padding-left:10px}

/* Academic paper sections */
.paper-section{margin-bottom:16px}
.paper-section h2{font-size:1.05rem;font-weight:700;border-bottom:2px solid var(--border);padding-bottom:6px;margin-bottom:10px}
.paper-section h3{font-size:.9rem;font-weight:600;margin-bottom:6px;color:var(--text-2)}
.paper-abstract{background:var(--bg-2);border-left:4px solid var(--border-2);padding:14px 16px;border-radius:0 8px 8px 0;font-size:.875rem;color:var(--text-2);line-height:1.7;margin-bottom:16px}

/* Upload status indicator */
.upload-progress{height:3px;background:var(--border);border-radius:99px;overflow:hidden;margin-top:6px}
.upload-progress-fill{height:100%;background:var(--text);border-radius:99px;transition:width .3s ease;width:0%}
.upload-status-row{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:.82rem}
.upload-status-icon{width:28px;height:28px;border-radius:6px;display:grid;place-items:center;flex-shrink:0;font-size:.9rem}

/* ── Research Hub ─────────────────────────────────────────────────────── */
.research-tool-card{border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 14px;cursor:pointer;transition:all var(--transition);text-align:center;position:relative;background:var(--surface)}
.research-tool-card:hover:not(.locked):not(.no-src){border-color:var(--text);background:var(--bg-2);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.research-tool-card.locked{opacity:.5;cursor:not-allowed}
.research-tool-card.no-src{opacity:.6;cursor:not-allowed}

/* ── Research output viewer ───────────────────────────────────────────── */
.research-output-wrap{background:var(--bg-2);border:1px solid var(--border);border-radius:10px;padding:20px 24px}
.research-section{margin-bottom:18px}
.research-section h2{font-size:1rem;font-weight:700;border-bottom:2px solid var(--border);padding-bottom:6px;margin-bottom:10px;letter-spacing:-.01em}
.research-section h3{font-size:.88rem;font-weight:600;margin-bottom:6px;color:var(--text-2)}
.research-abstract{background:var(--surface);border-left:3px solid var(--border-2);padding:12px 16px;border-radius:0 8px 8px 0;font-size:.875rem;line-height:1.7;margin-bottom:14px}

/* ── Keyword tags ─────────────────────────────────────────────────────── */
.kw-tag{display:inline-flex;align-items:center;padding:3px 10px;background:var(--bg-3);border:1px solid var(--border);border-radius:99px;font-size:.78rem;margin:3px;transition:all var(--transition);cursor:default}
.kw-tag:hover{background:var(--bg-2);border-color:var(--text)}

/* ── Citation block ───────────────────────────────────────────────────── */
.citation-block{padding:10px 12px;background:var(--bg-2);border-left:3px solid var(--border-2);border-radius:0 6px 6px 0;font-size:.82rem;line-height:1.65;margin-bottom:8px;font-family:var(--font-mono,monospace)}

/* ── Format guide cards ───────────────────────────────────────────────── */
.format-guide-section{font-size:.82rem;padding:6px 0;display:flex;gap:10px;align-items:flex-start;border-bottom:1px solid var(--border)}
.format-guide-section:last-child{border:none}
.format-guide-num{font-weight:700;flex-shrink:0;min-width:18px}

/* ── Word count badge ─────────────────────────────────────────────────── */
.word-count-badge{font-size:.72rem;background:var(--bg-3);padding:2px 8px;border-radius:99px;color:var(--text-3);font-weight:500}

/* ── Growth Map Chart & Trend ─────────────────────────────────────────── */
#growth-trend-chart{display:block;width:100%;border-radius:8px;background:var(--bg-2)}
.growth-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.growth-stat-card{background:var(--bg-2);border:1px solid var(--border);border-radius:10px;padding:16px}
.growth-stat-label{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);margin-bottom:5px}
.growth-stat-value{font-size:2.5rem;font-weight:700;letter-spacing:-.04em}
.growth-stat-bar{height:5px;background:var(--border);border-radius:99px;overflow:hidden;margin-top:8px}
.growth-stat-bar-fill{height:100%;border-radius:99px;transition:width .6s ease}
.quotient-trend-up{color:var(--success);font-size:.7rem;font-weight:700}
.quotient-trend-down{color:var(--danger);font-size:.7rem;font-weight:700}
.quotient-trend-flat{color:var(--text-3);font-size:.7rem}