*{box-sizing:border-box}html{font-size:var(--app-font-base)}body{margin:0;background:var(--app-bg);color:var(--app-text);font-family:Arial,Helvetica,sans-serif;min-height:100vh}a{color:var(--app-primary);text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh;padding-bottom:88px}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:rgba(16,16,16,.94);border-bottom:1px solid var(--app-border);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:12px;color:var(--app-text);font-weight:900;letter-spacing:.03em;text-transform:uppercase}.brand img{height:36px;max-width:170px;object-fit:contain}.user-pill{display:inline-flex;border:1px solid var(--app-border);border-radius:999px;padding:8px 12px;color:var(--app-muted);font-size:.85rem}.main-content{width:min(1080px,100%);margin:0 auto;padding:24px 18px 48px}.page-title{font-size:var(--app-font-heading);line-height:1;margin:0 0 8px;text-transform:uppercase;letter-spacing:.04em}.page-subtitle{margin:0 0 28px;color:var(--app-muted)}.card{background:var(--app-card);border:1px solid var(--app-border);border-radius:var(--app-radius);padding:20px;margin-bottom:18px}.card-title{font-weight:800;text-transform:uppercase;margin:0 0 12px;color:var(--app-primary);letter-spacing:.04em}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stack-card,.product-card{background:var(--app-surface);border:1px solid var(--app-border);border-radius:var(--app-radius);padding:16px}.muted{color:var(--app-muted)}.small{font-size:.85rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--app-primary);background:var(--app-primary);color:var(--app-primary-contrast);border-radius:10px;padding:12px 16px;min-height:44px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;cursor:pointer}.btn:hover{filter:brightness(1.05)}.btn-secondary{background:transparent;color:var(--app-primary)}.btn-danger{border-color:var(--app-danger);background:var(--app-danger);color:#fff}.btn-block{width:100%}.form-row{display:grid;gap:8px;margin-bottom:16px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-row label{font-weight:700}.input,select,textarea{width:100%;background:#111;border:1px solid var(--app-border);color:var(--app-text);border-radius:10px;padding:12px 14px;outline:none}.input:focus,select:focus,textarea:focus{border-color:var(--app-primary)}textarea{min-height:120px;resize:vertical}.notice{width:min(1080px,calc(100% - 36px));margin:16px auto 0;border-radius:12px;padding:12px 16px;border:1px solid var(--app-border)}.notice-success{background:rgba(214,178,94,.12);border-color:var(--app-primary)}.notice-error{background:rgba(255,41,61,.12);border-color:var(--app-danger)}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(24,24,24,.97);border-top:1px solid var(--app-border);display:grid;grid-template-columns:repeat(4,1fr);padding:8px 6px env(safe-area-inset-bottom)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--app-muted);padding:6px;border-radius:12px;text-transform:uppercase}.bottom-nav a span{font-size:1.35rem;line-height:1}.bottom-nav a small{font-size:.7rem;letter-spacing:.05em}.bottom-nav a.is-active{color:var(--app-primary);background:rgba(214,178,94,.1)}.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:22px}.auth-card{width:min(460px,100%);background:var(--app-card);border:1px solid var(--app-border);border-radius:18px;padding:28px}.calc-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:12px 0 22px}.option-button{position:relative;border:1px solid var(--app-border);background:var(--app-card);color:var(--app-text);border-radius:12px;min-height:78px;padding:14px;cursor:pointer;font-weight:800;text-align:center}.option-button.is-selected{border-color:var(--app-primary);color:var(--app-primary);box-shadow:0 0 0 1px var(--app-primary) inset;background:rgba(214,178,94,.08)}.result-panel{border:1px solid var(--app-primary);background:linear-gradient(180deg,rgba(214,178,94,.12),rgba(255,255,255,.02));border-radius:var(--app-radius);padding:20px;margin-top:24px}.result-main{font-size:1.8rem;font-weight:900;text-transform:uppercase}.result-main strong{color:var(--app-primary)}.syringe{position:relative;height:70px;border:1px solid var(--app-border);border-radius:999px;background:#292929;margin:24px 0 14px;overflow:hidden}.syringe-fill{height:100%;width:0;background:linear-gradient(90deg,rgba(214,178,94,.4),var(--app-primary));transition:width .2s}.syringe-marker{position:absolute;top:0;bottom:0;width:4px;background:var(--app-primary);left:0}.metric-list{display:grid;gap:8px;background:rgba(0,0,0,.18);border:1px solid var(--app-border);border-radius:12px;padding:14px}.metric{display:flex;justify-content:space-between;gap:12px}.history-table,.admin-table{width:100%;border-collapse:collapse;background:var(--app-card);border:1px solid var(--app-border);border-radius:12px;overflow:hidden}.history-table th,.history-table td,.admin-table th,.admin-table td{border-bottom:1px solid var(--app-border);padding:12px;text-align:left;vertical-align:top}.history-table th,.admin-table th{color:var(--app-primary);font-size:.84rem;text-transform:uppercase}.admin-body{padding:0}.admin-layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.admin-sidebar{background:#0d0d0d;border-right:1px solid var(--app-border);padding:20px;position:sticky;top:0;height:100vh;overflow:auto}.admin-sidebar h2{margin:0 0 18px;color:var(--app-primary);text-transform:uppercase}.admin-sidebar a{display:block;color:var(--app-muted);padding:10px 12px;border-radius:10px;margin-bottom:4px}.admin-sidebar a:hover{background:var(--app-card);color:var(--app-primary)}.admin-main{padding:28px;max-width:1220px;width:100%}.admin-main h1{margin-top:0;text-transform:uppercase}.badge{display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--app-border);padding:4px 8px;font-size:.75rem;color:var(--app-muted)}.kbd{font-family:monospace;background:#111;border:1px solid var(--app-border);border-radius:6px;padding:2px 6px}.install-prompt{display:none}.install-prompt.is-visible{display:block}@media(max-width:800px){.grid-2,.grid-3,.form-grid,.calc-options{grid-template-columns:1fr}.admin-layout{grid-template-columns:1fr}.admin-sidebar{position:relative;height:auto}.main-content{padding:20px 14px 44px}.topbar{padding:14px}.page-title{font-size:2rem}.auth-wrap{align-items:start}.admin-main{padding:18px}.history-table,.admin-table{display:block;overflow-x:auto;white-space:nowrap}}