/* ============================================================
   OPTO3008 Clinical Training Suite — main.css
   Production stylesheet for Hostinger deployment
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Mono:wght@400;500&family=Nunito:wght@400;600;700;800&display=swap');

/* ── Reset & Base ─────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:'Nunito',system-ui,sans-serif;background:#0d1117;color:#e6edf3;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

/* ── Design Tokens ─────────────────────────────────────────── */
:root{
  --teal:#1fc991;--teal-dark:#0d9e6a;--teal-dim:#0a5c3e;--teal-glow:rgba(31,201,145,0.12);
  --violet:#7c5af5;--vglow:rgba(124,90,245,0.12);
  --surface:#161b22;--s2:#1c2128;--s3:#21262d;--border:#30363d;--bs:#21262d;
  --text:#e6edf3;--t2:#8b949e;--t3:#484f58;
  --red:#f85149;--redbg:rgba(248,81,73,0.10);--amber:#d29922;--abg:rgba(210,153,34,0.10);--gbg:rgba(31,201,145,0.10);
  --r:10px;--rl:14px;--rxl:18px;
  --shadow-lg:0 8px 32px rgba(0,0,0,0.45);--shadow-md:0 4px 16px rgba(0,0,0,0.35)
}

/* ── Background ────────────────────────────────────────────── */
body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:0}
.bg-glow{position:fixed;inset:0;background:radial-gradient(ellipse 60% 40% at 20% 10%,rgba(31,201,145,0.06) 0%,transparent 60%),radial-gradient(ellipse 40% 50% at 80% 80%,rgba(88,60,220,0.04) 0%,transparent 60%);pointer-events:none;z-index:0}

/* ── Layout ────────────────────────────────────────────────── */
.app{position:relative;z-index:1;max-width:820px;margin:0 auto;padding:2rem 1.5rem 5rem}

/* ── Header ────────────────────────────────────────────────── */
.site-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:1px solid var(--border)}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{width:38px;height:38px;background:linear-gradient(135deg,var(--teal),var(--violet));border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.logo-text{font-family:'DM Serif Display',serif;font-size:20px;color:var(--text)}
.logo-text em{color:var(--teal);font-style:italic}
.logo-sub{font-size:11px;color:var(--t3);font-weight:700;letter-spacing:0.5px;text-transform:uppercase;margin-top:2px}
.hdr-acts{display:flex;gap:8px}

/* ── Buttons ───────────────────────────────────────────────── */
.btn-ghost{font-family:'Nunito',sans-serif;font-size:12px;font-weight:700;padding:7px 13px;border-radius:var(--r);border:1px solid var(--border);background:transparent;color:var(--t2);cursor:pointer;transition:all 0.15s;display:inline-flex;align-items:center;gap:5px;text-decoration:none}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);background:var(--teal-glow)}
.btn-ghost.danger{color:var(--red);border-color:rgba(248,81,73,0.3)}
.btn-ghost.danger:hover{background:var(--redbg)}
.btn-teal{font-family:'Nunito',sans-serif;font-size:13px;font-weight:700;padding:8px 16px;border-radius:var(--r);border:1px solid var(--teal-dark);background:var(--teal);color:#0d1117;cursor:pointer;transition:all 0.15s;display:inline-flex;align-items:center;gap:6px;text-decoration:none}
.btn-teal:hover{background:#23e3a5;transform:translateY(-1px);box-shadow:0 4px 16px rgba(31,201,145,0.25)}
.btn-violet{font-family:'Nunito',sans-serif;font-size:13px;font-weight:700;padding:8px 16px;border-radius:var(--r);border:1px solid rgba(124,90,245,0.5);background:var(--violet);color:#fff;cursor:pointer;transition:all 0.15s;display:inline-flex;align-items:center;gap:6px;text-decoration:none}
.btn-violet:hover{background:#9580ff;transform:translateY(-1px);box-shadow:0 4px 16px rgba(124,90,245,0.3)}

/* ── Navigation ────────────────────────────────────────────── */
.top-nav{display:flex;gap:4px;background:var(--surface);border-radius:var(--rl);padding:4px;margin-bottom:2rem;border:1px solid var(--border)}
.nav-btn{flex:1;font-family:'Nunito',sans-serif;font-size:13px;font-weight:700;padding:10px 6px;border-radius:var(--r);border:none;background:transparent;color:var(--t2);cursor:pointer;transition:all 0.15s;display:flex;align-items:center;justify-content:center;gap:6px}
.nav-btn.active{background:var(--s3);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,0.4)}
.nav-btn.active.viva{color:var(--violet)}
.nav-btn:hover:not(.active){color:var(--text)}

/* ── Panels ────────────────────────────────────────────────── */
.panel{display:none}.panel.active{display:block;animation:fadeUp 0.3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ── Stats ─────────────────────────────────────────────────── */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:1.75rem}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:14px 16px;text-align:center;transition:border-color 0.2s,transform 0.15s}
.stat-card:hover{border-color:var(--teal-dim);transform:translateY(-1px)}
.stat-num{font-family:'DM Mono',monospace;font-size:22px;font-weight:500;color:var(--teal)}
.stat-label{font-size:10px;color:var(--t2);margin-top:3px;font-weight:700;letter-spacing:0.5px;text-transform:uppercase}

/* ── Progress Bar ──────────────────────────────────────────── */
.prog-wrap{height:3px;background:var(--s3);border-radius:4px;margin-bottom:1.75rem;overflow:hidden}
.prog-fill{height:100%;border-radius:4px;transition:width 0.6s cubic-bezier(.4,0,.2,1)}
.prog-fill.teal{background:var(--teal)}.prog-fill.violet{background:var(--violet)}

/* ── Case Card ─────────────────────────────────────────────── */
.case-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rxl);padding:1.5rem;margin-bottom:1.25rem;animation:fadeUp 0.35s ease}
.case-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.sec-lbl{font-size:11px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--t3)}
.week-badge{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;background:rgba(31,201,145,0.12);color:var(--teal);border:1px solid rgba(31,201,145,0.25)}
.viva-badge{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;background:rgba(124,90,245,0.12);color:var(--violet);border:1px solid rgba(124,90,245,0.3)}

/* ── Clues ─────────────────────────────────────────────────── */
.clues-list{list-style:none;display:flex;flex-direction:column;gap:7px}
.clue-item{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:var(--r);font-size:14px;line-height:1.55;color:var(--text);background:var(--s2);border:1px solid var(--bs);animation:clueIn 0.3s ease}
@keyframes clueIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.clue-num{font-family:'DM Mono',monospace;font-size:11px;font-weight:500;min-width:20px;color:var(--teal);padding-top:2px}
.clue-locked{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--r);font-size:13px;color:var(--t3);background:var(--s2);border:1px dashed var(--border);font-style:italic;opacity:0.5}

/* ── Answer Area ───────────────────────────────────────────── */
.ans-section{margin-bottom:1rem}
.ans-label{font-size:11px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--t3);margin-bottom:8px}
.sw{position:relative}
.dx-input{width:100%;font-family:'Nunito',sans-serif;font-size:15px;font-weight:600;padding:12px 16px 12px 42px;border-radius:var(--rl);border:1px solid var(--border);background:var(--surface);color:var(--text);outline:none;transition:border-color 0.15s,box-shadow 0.15s}
.dx-input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(31,201,145,0.10)}
.s-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--t3);pointer-events:none}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--s2);border:1px solid var(--border);border-radius:var(--rl);z-index:100;overflow:hidden;max-height:220px;overflow-y:auto;box-shadow:var(--shadow-lg)}
.dd-item{padding:11px 16px;font-size:14px;font-weight:600;cursor:pointer;color:var(--text);border-bottom:1px solid var(--bs);transition:background 0.1s}
.dd-item:last-child{border-bottom:none}
.dd-item:hover,.dd-item.hi{background:var(--s3);color:var(--teal)}
.att-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;align-items:center}
.att-lbl{font-size:11px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t3)}
.att-chip{font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;background:var(--redbg);color:var(--red);border:1px solid rgba(248,81,73,0.25);text-decoration:line-through}

/* ── Results ───────────────────────────────────────────────── */
.result-card{border-radius:var(--rxl);padding:1.5rem;margin-top:1rem;border:1px solid;animation:fadeUp 0.4s ease}
.result-card.correct{background:rgba(31,201,145,0.08);border-color:rgba(31,201,145,0.35)}
.result-card.wrong{background:rgba(248,81,73,0.08);border-color:rgba(248,81,73,0.30)}
.pts-badge{display:inline-flex;align-items:center;gap:5px;font-family:'DM Mono',monospace;font-size:11px;padding:3px 10px;border-radius:20px;margin-bottom:10px}
.pts-badge.teal{background:var(--gbg);color:var(--teal);border:1px solid rgba(31,201,145,0.30)}
.pts-badge.gold{background:var(--abg);color:var(--amber);border:1px solid rgba(210,153,34,0.30)}
.pts-badge.silver{background:rgba(139,148,158,0.10);color:#8b949e;border:1px solid rgba(139,148,158,0.30)}
.pts-badge.red{background:var(--redbg);color:var(--red);border:1px solid rgba(248,81,73,0.25)}
.result-headline{font-family:'DM Serif Display',serif;font-size:20px;margin-bottom:4px}
.result-card.correct .result-headline{color:var(--teal)}.result-card.wrong .result-headline{color:var(--red)}
.result-dx{font-size:16px;font-weight:800;margin-bottom:10px}
.result-card.correct .result-dx{color:#23e3a5}.result-card.wrong .result-dx{color:#f97b72}
.result-teaching{font-size:13px;line-height:1.65;padding:10px 14px;border-radius:var(--r);margin-top:8px}
.result-card.correct .result-teaching{background:rgba(31,201,145,0.08);color:rgba(35,227,165,0.85)}
.result-card.wrong .result-teaching{background:rgba(248,81,73,0.08);color:rgba(249,123,114,0.85)}
.next-btn{display:inline-flex;align-items:center;gap:8px;font-family:'Nunito',sans-serif;font-size:14px;font-weight:800;padding:11px 22px;border-radius:var(--rl);border:none;background:var(--teal);color:#0d1117;cursor:pointer;margin-top:16px;transition:all 0.15s;text-decoration:none}
.next-btn:hover{background:#23e3a5;transform:translateY(-2px);box-shadow:0 6px 20px rgba(31,201,145,0.25)}
.next-btn.violet{background:var(--violet);color:#fff}
.next-btn.violet:hover{background:#9580ff;box-shadow:0 6px 20px rgba(124,90,245,0.30)}

/* ── End Screen ────────────────────────────────────────────── */
.end-screen{text-align:center;padding:3rem 1.5rem;animation:fadeUp 0.4s ease}
.end-crown{font-size:52px;margin-bottom:1rem}
.end-title{font-family:'DM Serif Display',serif;font-size:30px;color:var(--text);margin-bottom:8px}
.end-sub{font-size:15px;color:var(--t2);margin-bottom:2.5rem}
.end-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:2.5rem}
.end-stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:1.25rem 1rem}
.end-num{font-family:'DM Mono',monospace;font-size:26px;font-weight:500}
.end-num.teal{color:var(--teal)}.end-num.violet{color:var(--violet)}
.end-lbl{font-size:11px;font-weight:800;letter-spacing:0.6px;text-transform:uppercase;color:var(--t2);margin-top:4px}

/* ── VIVA ──────────────────────────────────────────────────── */
.viva-reading{background:var(--surface);border:1px solid rgba(124,90,245,0.30);border-radius:var(--rxl);padding:1.5rem;margin-bottom:1.25rem;animation:fadeUp 0.35s ease}
.viva-reading-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.2rem}
.timer-ring{display:flex;align-items:center;gap:10px}
.timer-display{font-family:'DM Mono',monospace;font-size:22px;font-weight:500;color:var(--violet)}
.timer-display.warn{color:var(--amber)}.timer-display.urgent{color:var(--red);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.6}}
.timer-label{font-size:11px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t3)}
.patient-record{background:var(--s2);border-radius:var(--r);padding:1.25rem;border:1px solid var(--bs)}
.pr-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.pr-title{font-family:'DM Serif Display',serif;font-size:16px;color:var(--text)}
.pr-id{font-family:'DM Mono',monospace;font-size:11px;color:var(--t3)}
.pr-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}
.pr-field{display:flex;flex-direction:column;gap:3px}
.pr-key{font-size:10px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t3)}
.pr-val{font-size:14px;color:var(--text);font-weight:600}.pr-val.cc{color:var(--amber);font-size:13px}
.pr-findings{margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}
.pr-ft{font-size:10px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t3);margin-bottom:8px}
.viva-images{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:12px}
.viva-img-card{background:var(--s3);border-radius:var(--r);overflow:hidden;border:1px solid var(--bs);cursor:pointer;transition:border-color 0.15s,transform 0.15s}
.viva-img-card:hover{border-color:var(--violet);transform:translateY(-2px)}
.viva-img-inner{width:100%;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.viva-img-label{font-size:10px;color:var(--t2);padding:6px 10px;font-weight:700}
.viva-qa{background:var(--surface);border:1px solid rgba(124,90,245,0.30);border-radius:var(--rxl);padding:1.5rem;margin-bottom:1.25rem;animation:fadeUp 0.3s ease}
.qa-progress{display:flex;gap:6px;margin-bottom:1.25rem;align-items:center}
.qa-dot{width:32px;height:5px;border-radius:3px;background:var(--s3);transition:background 0.3s}
.qa-dot.done{background:var(--teal)}.qa-dot.current{background:var(--violet)}
.question-box{background:rgba(124,90,245,0.08);border:1px solid rgba(124,90,245,0.20);border-radius:var(--r);padding:1rem 1.25rem;margin-bottom:1rem}
.q-num{font-size:10px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--violet);margin-bottom:6px}
.q-text{font-size:15px;font-weight:700;color:var(--text);line-height:1.55}
.q-hint{font-size:12px;color:var(--t2);margin-top:6px;font-style:italic}
.rubric-bands{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:10px}
.rb{border-radius:var(--r);padding:7px 6px;text-align:center;cursor:pointer;border:1.5px solid transparent;transition:all 0.15s}
.rb:hover{transform:translateY(-2px)}
.rb.r4{background:rgba(31,201,145,0.10);border-color:rgba(31,201,145,0.20)}.rb.r4:hover,.rb.r4.sel{background:rgba(31,201,145,0.20);border-color:var(--teal)}
.rb.r3{background:rgba(31,201,145,0.06);border-color:rgba(31,201,145,0.12)}.rb.r3:hover,.rb.r3.sel{background:rgba(31,201,145,0.15);border-color:#5dc9a5}
.rb.r2{background:rgba(210,153,34,0.08);border-color:rgba(210,153,34,0.15)}.rb.r2:hover,.rb.r2.sel{background:rgba(210,153,34,0.18);border-color:var(--amber)}
.rb.r1{background:rgba(248,81,73,0.07);border-color:rgba(248,81,73,0.12)}.rb.r1:hover,.rb.r1.sel{background:rgba(248,81,73,0.15);border-color:#f07070}
.rb.r0{background:rgba(139,148,158,0.07);border-color:rgba(139,148,158,0.12)}.rb.r0:hover,.rb.r0.sel{background:rgba(139,148,158,0.15);border-color:#6e7681}
.rb-score{font-family:'DM Mono',monospace;font-size:16px;font-weight:500;color:var(--text)}
.rb-desc{font-size:8.5px;color:var(--t2);margin-top:3px;line-height:1.3}
.viva-textarea{width:100%;font-family:'Nunito',sans-serif;font-size:14px;padding:12px 14px;background:var(--s2);color:var(--text);border:1px solid var(--border);border-radius:var(--r);resize:vertical;outline:none;line-height:1.6;min-height:80px;transition:border-color 0.15s}
.viva-textarea:focus{border-color:var(--violet)}
textarea{color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);font-family:'Nunito',sans-serif;font-size:14px;padding:12px 14px;width:100%;height:160px;resize:vertical;outline:none;line-height:1.6}
textarea:focus{border-color:var(--teal)}
.ai-feedback{background:rgba(124,90,245,0.06);border:1px solid rgba(124,90,245,0.20);border-radius:var(--r);padding:1rem 1.25rem;margin-top:10px;animation:fadeUp 0.3s ease}
.ai-fb-header{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.ai-fb-title{font-size:12px;font-weight:800;letter-spacing:0.5px;text-transform:uppercase;color:var(--violet)}
.ai-fb-score{font-family:'DM Mono',monospace;font-size:12px;padding:2px 8px;border-radius:12px;background:rgba(124,90,245,0.15);color:var(--violet);margin-left:auto}
.ai-fb-text{font-size:13px;color:var(--text);line-height:1.65}
.ai-fb-note{font-size:11px;color:var(--t3);margin-top:6px;font-style:italic}
.generating{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t2);font-style:italic}
.da span{display:inline-block;animation:blink 1.4s infinite both}
.da span:nth-child(2){animation-delay:0.2s}.da span:nth-child(3){animation-delay:0.4s}
@keyframes blink{0%,80%,100%{opacity:0}40%{opacity:1}}
.viva-score-table{width:100%;border-collapse:collapse;margin:1rem 0}
.viva-score-table th{font-size:10px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t3);padding:8px 12px;text-align:left;border-bottom:1px solid var(--border)}
.viva-score-table td{padding:10px 12px;font-size:13px;border-bottom:1px solid var(--bs);color:var(--text)}
.viva-score-table tr:last-child td{border-bottom:none}
.score-chip{display:inline-flex;font-family:'DM Mono',monospace;font-size:13px;font-weight:500;padding:2px 10px;border-radius:12px}
.score-chip.s4{background:rgba(31,201,145,0.15);color:var(--teal)}.score-chip.s3{background:rgba(31,201,145,0.08);color:#5dc9a5}
.score-chip.s2{background:rgba(210,153,34,0.12);color:var(--amber)}.score-chip.s1{background:rgba(248,81,73,0.10);color:#f07070}
.score-chip.s0{background:rgba(139,148,158,0.10);color:#8b949e}

/* ── Import ────────────────────────────────────────────────── */
.panel-title{font-family:'DM Serif Display',serif;font-size:22px;color:var(--text);margin-bottom:6px}
.panel-sub{font-size:14px;color:var(--t2);margin-bottom:1.75rem;line-height:1.6}
.dropzone{border:2px dashed var(--border);border-radius:var(--rxl);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all 0.2s;background:var(--surface);margin-bottom:1.5rem;position:relative}
.dropzone:hover,.dropzone.drag{border-color:var(--teal);background:var(--teal-glow)}
.dropzone input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.dz-icon{font-size:36px;margin-bottom:12px;opacity:0.6}.dz-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}.dz-sub{font-size:13px;color:var(--t2)}
.processing{display:none;text-align:center;padding:2.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--rxl);margin-bottom:1.5rem}
.processing.active{display:block}
.spinner{width:40px;height:40px;border-radius:50%;border:3px solid var(--s3);border-top-color:var(--teal);animation:spin 0.8s linear infinite;margin:0 auto 16px}
@keyframes spin{to{transform:rotate(360deg)}}
.proc-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}.proc-sub{font-size:13px;color:var(--t2)}
.api-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:1.25rem;margin-bottom:1.25rem}
.api-label{font-size:12px;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;color:var(--t2);margin-bottom:8px}
.api-input{width:100%;font-family:'DM Mono',monospace;font-size:13px;padding:10px 14px;border-radius:var(--r);border:1px solid var(--border);background:var(--s2);color:var(--text);outline:none;transition:border-color 0.15s}
.api-input:focus{border-color:var(--teal)}.api-hint{font-size:12px;color:var(--t3);margin-top:6px}
.disease-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.disease-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:12px 14px;transition:all 0.15s}
.disease-card:hover{border-color:var(--teal-dim);background:var(--s2);transform:translateY(-1px)}
.dc-name{font-size:13px;font-weight:700;color:var(--text);margin-bottom:4px}.dc-meta{font-size:11px;color:var(--t2)}
.dc-badge{display:inline-block;font-size:10px;font-weight:700;padding:1px 7px;border-radius:20px;margin-top:6px}
.dc-badge.builtin{background:var(--gbg);color:var(--teal)}.dc-badge.ai{background:var(--abg);color:var(--amber)}
.viva-start{background:var(--surface);border:1px solid rgba(124,90,245,0.30);border-radius:var(--rxl);padding:2rem;margin-bottom:1.25rem}
.vs-icon{font-size:40px;margin-bottom:1rem}.vs-title{font-family:'DM Serif Display',serif;font-size:24px;color:var(--text);margin-bottom:8px}
.vs-sub{font-size:14px;color:var(--t2);line-height:1.7;margin-bottom:1.5rem}
.vica{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:1.5rem}
.vic{background:var(--s2);border:1px solid var(--bs);border-radius:var(--r);padding:12px}
.vic-num{font-family:'DM Mono',monospace;font-size:20px;font-weight:500;color:var(--violet);margin-bottom:4px}.vic-lbl{font-size:11px;color:var(--t2);font-weight:600}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--s2);border:1px solid var(--border);border-radius:var(--rl);padding:12px 20px;font-size:14px;font-weight:600;color:var(--text);z-index:999;transition:transform 0.3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;max-width:420px}
.toast.show{transform:translateX(-50%) translateY(0)}
.empty-state{text-align:center;padding:4rem 2rem;color:var(--t2)}.empty-icon{font-size:36px;margin-bottom:12px;opacity:0.4}.empty-text{font-size:15px;font-weight:600}.empty-sub{font-size:13px;color:var(--t3);margin-top:6px}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--surface)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#484f58}

/* ── Responsive ────────────────────────────────────────────── */
@media(max-width:600px){
  .app{padding:1.25rem 1rem 3rem}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .end-grid{grid-template-columns:repeat(2,1fr)}
  .vica{grid-template-columns:repeat(2,1fr)}
  .rubric-bands{grid-template-columns:repeat(3,1fr)}
  .pr-grid{grid-template-columns:1fr}
  .top-nav{gap:2px}
  .nav-btn{font-size:11px;padding:9px 4px}
  .hdr-acts .btn-ghost span{display:none}
  .disease-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}
@media(max-width:400px){
  .vica{grid-template-columns:1fr 1fr}
}
/* ============================================================
   ADDITIONS — welcome.css
   Welcome popup + Account system styles
   ============================================================ */

/* ── Welcome Overlay ─────────────────────────────────────────── */
.welcome-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: overlayIn 0.35s ease;
}
.welcome-overlay.closing {
  animation: overlayOut 0.3s ease forwards;
}
@keyframes overlayIn  { from { opacity:0; }              to { opacity:1; } }
@keyframes overlayOut { from { opacity:1; backdrop-filter:blur(8px); } to { opacity:0; backdrop-filter:blur(0); } }

.welcome-modal {
  background: #161b22;
  border: 1px solid rgba(31,201,145,0.30);
  border-radius: 20px;
  padding: 2.5rem 2rem 2rem;
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,0.7), 0 0 0 1px rgba(31,201,145,0.08);
  animation: modalIn 0.4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn { from { opacity:0; transform:scale(0.92) translateY(20px); } to { opacity:1; transform:scale(1) translateY(0); } }

.welcome-avatar {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, #1fc991, #7c5af5);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin: 0 auto 1.25rem;
  box-shadow: 0 0 0 4px rgba(31,201,145,0.15), 0 0 0 8px rgba(31,201,145,0.06);
}
.welcome-from {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--teal);
  text-align: center;
  margin-bottom: 6px;
}
.welcome-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  color: var(--text);
  text-align: center;
  margin-bottom: 1.25rem;
}
.welcome-msg {
  font-size: 14px;
  line-height: 1.75;
  color: #b0bec5;
  text-align: center;
  margin-bottom: 1.75rem;
}
.welcome-msg strong { color: var(--teal); }
.welcome-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 1.25rem 0;
}
.welcome-note {
  font-size: 12px;
  color: var(--t3);
  text-align: center;
  font-style: italic;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
.welcome-btn {
  width: 100%;
  font-family: 'Nunito', sans-serif;
  font-size: 15px; font-weight: 800;
  padding: 13px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, #1fc991, #7c5af5);
  color: #fff;
  cursor: pointer;
  transition: all 0.2s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 4px 20px rgba(31,201,145,0.25);
}
.welcome-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(31,201,145,0.35); }
.welcome-btn:active { transform: translateY(0); }
.welcome-footer {
  text-align: center;
  font-size: 11px;
  color: var(--t3);
  margin-top: 12px;
}
.welcome-close-x {
  position: absolute;
  top: 14px; right: 14px;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--t2);
  font-size: 14px;
  transition: all 0.15s;
  line-height: 1;
}
.welcome-close-x:hover { color: var(--text); border-color: var(--teal); background: var(--teal-glow); }

/* ── Account Modal ──────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: overlayIn 0.25s ease;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: #161b22;
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
  animation: modalIn 0.35s cubic-bezier(.34,1.56,.64,1);
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem 0;
}
.modal-title {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--text);
}
.modal-close {
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--t2);
  font-size: 16px;
  transition: all 0.15s;
}
.modal-close:hover { color: var(--text); border-color: var(--border); background: var(--s3); }

/* ── Auth Tabs ──────────────────────────────────────────────── */
.auth-tabs {
  display: flex;
  gap: 0;
  background: var(--s2);
  margin: 1.25rem 1.5rem 0;
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--border);
}
.auth-tab {
  flex: 1;
  font-family: 'Nunito', sans-serif;
  font-size: 13px; font-weight: 700;
  padding: 9px;
  border: none;
  background: transparent;
  color: var(--t2);
  cursor: pointer;
  transition: all 0.15s;
}
.auth-tab.active { background: var(--s3); color: var(--text); }

/* ── Auth Form ──────────────────────────────────────────────── */
.auth-form { padding: 1.5rem; }
.auth-field { margin-bottom: 1rem; }
.auth-label {
  display: block;
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 6px;
}
.auth-input {
  width: 100%;
  font-family: 'Nunito', sans-serif;
  font-size: 14px; font-weight: 600;
  padding: 11px 14px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--s2);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.auth-input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(31,201,145,0.10); }
.auth-input::placeholder { color: var(--t3); }
.auth-input-hint { font-size: 11px; color: var(--t3); margin-top: 5px; line-height: 1.5; }

.auth-key-toggle {
  position: relative;
}
.auth-key-toggle .auth-input { padding-right: 44px; font-family: 'DM Mono', monospace; font-size: 13px; }
.toggle-vis {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  cursor: pointer; color: var(--t2);
  font-size: 15px; padding: 2px;
  transition: color 0.15s;
}
.toggle-vis:hover { color: var(--teal); }

.auth-submit {
  width: 100%;
  font-family: 'Nunito', sans-serif;
  font-size: 14px; font-weight: 800;
  padding: 12px;
  border-radius: var(--r);
  border: none;
  background: var(--teal);
  color: #0d1117;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 4px;
}
.auth-submit:hover { background: #23e3a5; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(31,201,145,0.25); }
.auth-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.auth-divider {
  display: flex; align-items: center; gap: 10px;
  margin: 1rem 0;
}
.auth-divider::before,.auth-divider::after { content:''; flex:1; height:1px; background:var(--border); }
.auth-divider span { font-size:11px; color:var(--t3); font-weight:700; }

.auth-error {
  background: rgba(248,81,73,0.10);
  border: 1px solid rgba(248,81,73,0.25);
  border-radius: var(--r);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--red);
  margin-bottom: 1rem;
  display: none;
}
.auth-error.visible { display: block; }
.auth-success {
  background: rgba(31,201,145,0.10);
  border: 1px solid rgba(31,201,145,0.25);
  border-radius: var(--r);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--teal);
  margin-bottom: 1rem;
  display: none;
}
.auth-success.visible { display: block; }

/* ── User Avatar / Account Button ───────────────────────────── */
.acct-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 8px;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 40px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'Nunito', sans-serif;
  font-size: 13px; font-weight: 700;
  color: var(--text);
}
.acct-btn:hover { border-color: var(--teal); background: var(--teal-glow); }
.acct-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1fc991, #7c5af5);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.acct-name { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  z-index: 8000;
  overflow: hidden;
  animation: fadeUp 0.2s ease;
}
.user-menu.hidden { display: none; }
.user-menu-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.user-menu-name { font-size: 14px; font-weight: 700; color: var(--text); }
.user-menu-email { font-size: 11px; color: var(--t2); margin-top: 2px; font-family: 'DM Mono', monospace; }
.user-menu-key {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px;
  color: var(--teal);
  margin-top: 6px;
  padding: 4px 8px;
  background: var(--gbg);
  border-radius: 6px;
  width: fit-content;
}
.user-menu-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px;
  font-family: 'Nunito', sans-serif;
  font-size: 13px; font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background 0.1s;
  border: none; background: none; width: 100%; text-align: left;
}
.user-menu-item:hover { background: var(--s3); }
.user-menu-item.danger { color: var(--red); }
.user-menu-item.danger:hover { background: var(--redbg); }
.user-menu-sep { height: 1px; background: var(--border); margin: 4px 0; }

/* ── Account Profile Panel ──────────────────────────────────── */
.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rxl);
  overflow: hidden;
  margin-bottom: 1.25rem;
}
.profile-banner {
  height: 80px;
  background: linear-gradient(135deg, rgba(31,201,145,0.3), rgba(124,90,245,0.3));
  position: relative;
}
.profile-avatar-lg {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1fc991, #7c5af5);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  position: absolute;
  bottom: -24px;
  left: 1.5rem;
  border: 3px solid var(--surface);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.profile-body { padding: 2rem 1.5rem 1.5rem; }
.profile-name { font-family: 'DM Serif Display', serif; font-size: 20px; color: var(--text); margin-bottom: 4px; }
.profile-email { font-size: 13px; color: var(--t2); font-family: 'DM Mono', monospace; margin-bottom: 1.25rem; }
.profile-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-bottom: 1.25rem; }
.profile-stat { background: var(--s2); border: 1px solid var(--bs); border-radius: var(--r); padding: 12px; text-align: center; }
.profile-stat-num { font-family: 'DM Mono', monospace; font-size: 20px; font-weight: 500; color: var(--violet); }
.profile-stat-lbl { font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; color: var(--t2); margin-top: 3px; }

.api-key-section {
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1rem 1.25rem;
}
.api-key-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin-top: 8px;
}
.api-key-display {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--t2);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.api-key-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
}
.api-key-status.set   { background: var(--gbg); color: var(--teal); }
.api-key-status.unset { background: var(--redbg); color: var(--red); }

/* ── Leaderboard (bonus) ────────────────────────────────────── */
.leaderboard { margin-top: 1.25rem; }
.lb-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-radius: var(--r);
  background: var(--s2);
  border: 1px solid var(--bs);
  margin-bottom: 6px;
  transition: border-color 0.15s;
}
.lb-row:hover { border-color: var(--teal-dim); }
.lb-rank {
  font-family: 'DM Mono', monospace;
  font-size: 14px; font-weight: 500;
  min-width: 28px;
  color: var(--t3);
}
.lb-rank.top { color: var(--amber); }
.lb-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, #1fc991, #7c5af5);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; color: #fff;
  flex-shrink: 0;
}
.lb-name { flex: 1; font-size: 14px; font-weight: 700; color: var(--text); }
.lb-score { font-family: 'DM Mono', monospace; font-size: 14px; font-weight: 500; color: var(--teal); }
.lb-me { border-color: rgba(31,201,145,0.35) !important; background: rgba(31,201,145,0.05) !important; }

/* ── Relative header for menu positioning ───────────────────── */
.header-acct-wrap { position: relative; }

/* ── Notification dot ───────────────────────────────────────── */
.notif-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal);
  position: absolute;
  top: -2px; right: -2px;
  border: 2px solid #0d1117;
  animation: notifPulse 2s ease-in-out infinite;
}
@keyframes notifPulse {
  0%,100% { transform: scale(1); opacity:1; }
  50%      { transform: scale(1.2); opacity:0.7; }
}

/* ── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 480px) {
  .welcome-modal { padding: 2rem 1.25rem 1.5rem; }
  .welcome-title { font-size: 19px; }
  .welcome-msg   { font-size: 13px; }
  .acct-name     { display: none; }
  .profile-stats { grid-template-columns: repeat(2,1fr); }
}