:root{color-scheme:dark;font-family:IBM Plex Sans JP,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg: #0b1220;--bg-elevated: rgba(17, 28, 48, .92);--bg-soft: rgba(255, 255, 255, .03);--line: rgba(148, 163, 184, .16);--text: #e8eefc;--muted: #94a3b8;--indigo: #6366f1;--indigo-strong: #818cf8;--indigo-soft: rgba(99, 102, 241, .16);--ok: #2dd4bf;--danger: #fb7185;--shadow: 0 24px 80px rgba(0, 0, 0, .35);--nav-h: 72px;--radius: 18px}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;min-width:320px;color:var(--text);background:radial-gradient(circle at top left,rgba(99,102,241,.18),transparent 30%),radial-gradient(circle at 80% 0%,rgba(56,189,248,.08),transparent 24%),linear-gradient(180deg,#0a101c 0%,var(--bg) 40%,#0a0f19 100%)}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}h1,h2,h3,h4,p{margin:0}a{color:inherit}.app-shell{min-height:100svh;max-width:480px;margin:0 auto;position:relative;background:linear-gradient(180deg,#0c1220b8,#0b1220eb);box-shadow:var(--shadow)}.app-main{width:100%;min-height:100svh;padding:20px 16px calc(var(--nav-h) + 20px)}.view{display:grid;gap:18px;animation:rise .28s ease}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.view-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.view-header h1,.onboarding h1,.hero-strip h2{margin-top:4px;font-size:clamp(1.45rem,5vw,1.85rem);letter-spacing:-.03em;line-height:1.2;font-weight:650}.session-header{align-items:center}.eyebrow,.hero-kicker,.meta,.tip-line{color:var(--muted);font-size:.86rem}.eyebrow,.hero-kicker{font-weight:600;letter-spacing:.04em}.brand-mark{display:inline-flex;align-items:center;gap:8px;color:var(--indigo-strong);font-weight:700;margin-bottom:14px}.onboarding{min-height:100svh;display:grid;place-items:center;padding:28px 18px}.onboarding-panel{width:min(420px,100%);display:grid;gap:16px}.onboarding .lede{color:var(--muted);max-width:36ch}.field{display:grid;gap:8px}.field>span{font-size:.84rem;color:var(--muted);font-weight:600}input,textarea{width:100%;border:1px solid var(--line);background:var(--bg-elevated);border-radius:14px;padding:12px 14px;outline:none;resize:vertical}input:focus,textarea:focus{border-color:color-mix(in srgb,var(--indigo) 55%,white);box-shadow:0 0 0 4px 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35%,transparent)}.hero-strip,.plain-block,.composer,.result-panel,.chart-panel,.session-goal{background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.hero-strip{display:grid;gap:10px;background:linear-gradient(145deg,rgba(99,102,241,.18),transparent 46%),var(--bg-elevated)}.hero-actions,.inline-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}.stack-section,.scenario-list,.improved-list{display:grid;gap:12px}.section-title{display:flex;align-items:center;gap:8px;color:var(--muted)}.section-title h3,.stack-section h3,.result-panel h3,.chart-panel h3{font-size:.95rem}.plain-block{display:grid;gap:8px}.plain-block.compact{padding:12px 14px}.plain-block.clickable{cursor:pointer;transition:border-color .14s ease,transform .14s ease}.plain-block.clickable:hover{border-color:color-mix(in srgb,var(--indigo) 40%,transparent);transform:translateY(-1px)}.prompt-line{padding:12px 14px;border-left:3px solid var(--indigo);background:#6366f114;border-radius:0 12px 12px 0}.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mini-stats div{display:grid;gap:4px;padding:14px 10px;border-radius:16px;background:var(--bg-elevated);border:1px solid var(--line);text-align:center}.mini-stats strong{font-size:1.25rem;color:var(--indigo-strong)}.mini-stats span,.score-meta span{color:var(--muted);font-size:.78rem}.score-bars{display:grid;gap:10px;margin:14px 0}.score-row{display:grid;gap:6px}.score-meta{display:flex;justify-content:space-between;gap:12px;font-size:.9rem}.bar-track{height:8px;border-radius:999px;background:#ffffff0f;overflow:hidden}.bar-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#4f46e5,#818cf8)}.overall-score{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center}.overall-score strong{font-size:2rem;color:var(--indigo-strong);line-height:1}.split-list{display:grid;gap:14px;margin-top:14px}.split-list ul,.step-list{margin:8px 0 0;padding-left:18px;display:grid;gap:6px;color:color-mix(in srgb,var(--text) 92%,white)}.split-list li{display:flex;gap:6px;align-items:flex-start}.bottom-nav{position:fixed;left:50%;bottom:0;transform:translate(-50%);width:min(480px,100%);display:grid;grid-template-columns:repeat(5,1fr);gap:2px;padding:10px 8px calc(10px + env(safe-area-inset-bottom));background:#0a101ceb;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:20}.nav-item{border:0;background:transparent;color:var(--muted);display:grid;justify-items:center;gap:4px;font-size:.68rem;padding:6px 2px}.nav-item.active{color:var(--indigo-strong);font-weight:700}.roleplay-view.session{min-height:calc(100svh - 120px);grid-template-rows:auto auto 1fr auto auto}.icon-btn{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:var(--bg-elevated);display:inline-grid;place-items:center;color:var(--text);flex:0 0 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24%)}.chart-wrap{width:100%;height:260px}@media (min-width: 720px){.app-shell{margin-top:18px;margin-bottom:18px;min-height:calc(100svh - 36px);border-radius:28px;overflow:hidden}.bottom-nav{width:min(480px,calc(100% + -0px));border-radius:0 0 28px 28px}.split-list{grid-template-columns:1fr 1fr}}