:root{--primary:#234b38;--primary-dark:#183728;--accent:#d9b56d;--background:#f4f6f3;--surface:#fff;--text:#26332b;--muted:#68766d;--border:#dce3dc;--danger:#a83232}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--background);color:var(--text);line-height:1.55}
button,input,textarea{font:inherit}button{min-height:44px;background:var(--primary);color:#fff;border:1px solid transparent;border-radius:9px;padding:11px 16px;font-weight:650;cursor:pointer;touch-action:manipulation}
button:hover{background:var(--primary-dark)}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
button.secondary{background:#e7ede8;color:var(--primary);border-color:var(--border)}button.secondary:hover{background:#dce6de}button.danger{background:var(--danger)}
.app-header{background:var(--primary);color:white;padding:clamp(22px,4vw,34px) 16px;text-align:center;border-bottom:5px solid var(--accent)}
.app-header h1{margin:0;font-size:clamp(1.5rem,4vw,2.25rem);line-height:1.2}.app-header p{margin:7px 0 0;color:#e0e9e2}
#app{width:min(100% - 32px,1050px);margin:clamp(16px,3vw,30px) auto}
.welcome,.page-card,.library-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:clamp(18px,3vw,28px);margin-bottom:18px;box-shadow:0 3px 12px rgba(25,50,35,.05)}
.welcome{text-align:center;padding:clamp(28px,7vw,54px) clamp(18px,4vw,32px)}.home-mark{width:52px;height:52px;display:grid;place-items:center;margin:0 auto 12px;border-radius:16px;color:var(--primary);background:#f4ead4;font-size:1.8rem}
h2,h3{color:var(--primary);line-height:1.3}.welcome h2{margin:0 0 10px;font-size:clamp(1.35rem,3vw,1.8rem)}.intro-copy{max-width:620px;margin:0 auto 24px;color:var(--muted)}
.home-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.home-actions button{margin:0}
.workspace-topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;padding:8px 10px;background:rgba(255,255,255,.96);border:1px solid var(--border);border-radius:10px;box-shadow:0 2px 8px rgba(25,50,35,.06);backdrop-filter:blur(8px)}
.workspace-topbar span{color:var(--primary);font-weight:750}.workspace-topbar button{margin:0;min-height:42px}
.page-menu{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:18px}.page-menu button{width:100%;min-width:0;margin:0;text-align:left;line-height:1.35;overflow-wrap:anywhere;font-size:.92rem}.page-menu button.active{background:var(--accent);color:#26332b}
.page-card h2{margin-top:0}.muted{color:var(--muted)}label{display:block;font-weight:700;margin-top:18px}
input,textarea{display:block;width:100%;min-height:44px;padding:12px;margin-top:6px;border:1px solid #cbd5cc;border-radius:8px;background:#fff;color:var(--text)}textarea{min-height:150px;resize:vertical}
.page-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.page-actions button{margin:0}.library-card h3,.library-card p{overflow-wrap:anywhere}.library-card h3{margin-top:0}.library-card button{margin:4px 6px 4px 0}
.app-footer{text-align:center;margin:28px auto 14px;padding:18px 12px;color:var(--muted);font-size:.82rem;border-top:1px solid var(--border)}.app-footer p{margin:4px 0}[hidden]{display:none!important}
@media(max-width:720px){#app{width:min(100% - 20px,650px);margin:14px auto 24px}.page-menu{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.page-menu button{padding:10px;font-size:.84rem}.workspace-topbar span{font-size:.9rem}.workspace-topbar button{padding:9px 12px}.page-actions{display:grid;grid-template-columns:1fr}.page-actions button{width:100%}.home-actions{display:grid;grid-template-columns:1fr;width:100%;max-width:420px;margin:0 auto}.home-actions button{width:100%}.welcome,.page-card,.library-card{border-radius:12px}textarea{min-height:135px}}
@media(max-width:380px){.app-header{padding:20px 12px}#app{width:calc(100% - 14px)}.page-menu{grid-template-columns:1fr 1fr;gap:6px}.page-menu button{font-size:.78rem;padding:9px 7px}.workspace-topbar{gap:8px;padding:7px}.workspace-topbar span{font-size:.8rem}.workspace-topbar button{font-size:.85rem}}
@media(min-width:1000px){.page-menu{grid-template-columns:repeat(4,minmax(0,1fr))}}