:root{--font:'Inter',-apple-system,BlinkMacSystemFont,'SF Pro Text',Roboto,system-ui,sans-serif;--head:'Space Grotesk','Inter',sans-serif;
--r:18px;--r-sm:13px;--safe-t:env(safe-area-inset-top,0px);--safe-b:env(safe-area-inset-bottom,0px);--ease:cubic-bezier(.2,.8,.2,1);
--brand:#2F6BF0;--grad:linear-gradient(135deg,#0A5BFF 0%,#2F6BF0 50%,#12C8FF 100%);--ok:#00B357;--warn:#F59E0B;--danger:#FF4053}
[data-theme=light]{--bg:#F4F7FF;--surface:#FFFFFF;--surface-2:#EEF2FB;--line:#E1E9F8;--text:#0D1526;--muted:#5B6B8C;--muted-2:#8E9AC4;--accent:#2F6BF0;--accent-soft:#E8EEF9;--price:#12306B;--shadow:0 12px 30px -20px rgba(10,28,63,.28);--nav:rgba(255,255,255,.92);--input:#F5F7FD}
[data-theme=dark]{--bg:#0F1226;--surface:#181C36;--surface-2:#222849;--line:#2A3157;--text:#EEF2FB;--muted:#9AA0B4;--muted-2:#7A84AC;--accent:#5A8BFF;--accent-soft:#1F2A55;--price:#CFE0FF;--shadow:0 16px 34px -20px rgba(0,0,0,.7);--nav:rgba(20,24,48,.92);--input:#1D2242}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 var(--font);-webkit-font-smoothing:antialiased;letter-spacing:-.01em;transition:background .25s,color .25s}
body{min-height:100vh;overscroll-behavior-y:contain}
button,input,select,textarea{font:inherit;color:inherit}.hidden{display:none!important}
h1,h2,h3{font-family:var(--head);letter-spacing:-.02em}
/* login */
.login{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:calc(24px + var(--safe-t)) 20px calc(24px + var(--safe-b));max-width:420px;margin:auto;animation:fade .4s var(--ease)}
.login-hero{text-align:center;margin-bottom:22px}.logo-full{width:220px;height:auto}
.login-hero h1{font-size:28px;margin:14px 0 4px}.login-hero p{margin:0;color:var(--muted)}
.login-card{padding:20px}.login-foot{text-align:center;color:var(--muted-2);font-size:13px;margin-top:16px}
.field{display:block;margin-bottom:12px}.field>span{display:block;font-size:12px;font-weight:600;color:var(--muted);margin:0 0 6px 3px}
input,select,textarea{width:100%;padding:12px 14px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--input);outline:none;font-size:16px;transition:border .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
textarea{min-height:90px;resize:vertical}
.pw{position:relative}.eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;width:38px;height:38px;opacity:.6;cursor:pointer}
.err{color:var(--danger);font-size:13px;min-height:18px;margin-top:10px;text-align:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:var(--r-sm);padding:11px 15px;font-weight:600;font-size:14px;cursor:pointer;transition:transform .15s var(--ease),opacity .2s;background:var(--surface-2);color:var(--text);white-space:nowrap}
.btn:active{transform:scale(.96)}.btn[disabled]{opacity:.5;pointer-events:none}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px color-mix(in srgb,var(--accent) 90%,transparent)}
.btn.ok{background:var(--ok);color:#fff}.btn.danger{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger)}
.btn.soft{background:var(--accent-soft);color:var(--accent)}
.btn.lg{width:100%;padding:14px;font-size:16px;border-radius:15px}.btn.block{width:100%}.btn.sm{padding:7px 11px;font-size:13px;border-radius:11px}
.icon-btn{width:40px;height:40px;border-radius:13px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;color:var(--text);font-size:18px;cursor:pointer}
/* layout */
.top{position:sticky;top:0;z-index:5;padding-top:var(--safe-t);background:var(--bg);border-bottom:1px solid transparent}
.top-in{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;max-width:640px;margin:auto}.top-logo{height:34px;width:auto}
main{padding:4px 16px calc(96px + var(--safe-b));max-width:640px;margin:auto;animation:fade .3s var(--ease)}
.page-h{display:flex;align-items:center;justify-content:space-between;margin:8px 2px 12px;gap:10px}.page-h h2{margin:0;font-size:25px}
.sec{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin:20px 3px 9px;display:flex;justify-content:space-between;align-items:center}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px;margin-bottom:10px;box-shadow:var(--shadow)}
.tap{cursor:pointer;transition:transform .15s var(--ease)}.tap:active{transform:scale(.985)}
.muted{color:var(--muted)}.small{font-size:13px}.tiny{font-size:12px}.b{font-weight:700}
.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.grow{flex:1;min-width:0}.gap8{display:flex;gap:8px;flex-wrap:wrap}
.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ok-t{color:var(--ok)}.danger-t{color:var(--danger)}.warn-t{color:var(--warn)}.acc-t{color:var(--accent)}
/* stats */
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:13px 14px;box-shadow:var(--shadow)}
.kpi small{display:block;color:var(--muted);font-size:12px;font-weight:600}.kpi b{display:block;font:700 20px/1.25 var(--head);margin-top:3px;color:var(--price)}
.kpi.hero{background:var(--grad);border:0;color:#fff}.kpi.hero small{color:rgba(255,255,255,.82)}.kpi.hero b{color:#fff}
/* chips & seg */
.chips{display:flex;gap:7px;overflow-x:auto;margin:0 -16px 12px;padding:2px 16px 4px;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}
.chip{flex:none;padding:7px 13px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}
.chip.on{background:var(--accent);color:#fff;border-color:transparent}
.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;background:var(--surface-2);border-radius:14px;padding:4px;margin-bottom:12px}
.seg button{border:0;background:none;padding:9px 6px;border-radius:11px;font-weight:600;font-size:14px;color:var(--muted);cursor:pointer}
.seg button.on{background:var(--surface);color:var(--text);box-shadow:0 2px 8px rgba(10,28,63,.08)}
.search{position:relative;margin-bottom:10px}.search span{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.5}.search input{padding-left:40px}
/* products */
.prod{display:flex;gap:12px;align-items:center}
.thumb{flex:none;width:58px;height:58px;border-radius:14px;background:var(--surface-2);display:grid;place-items:center;overflow:hidden;font-size:24px}.thumb img{width:100%;height:100%;object-fit:cover}
.thumb.lg{width:100%;height:220px;border-radius:16px;font-size:54px;margin-bottom:12px}.thumb.lg img{object-fit:contain;background:#fff}
.qty{flex:none;min-width:52px;text-align:center;padding:6px 9px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:14px}
.qty.low{background:color-mix(in srgb,var(--warn) 16%,transparent);color:var(--warn)}.qty.zero{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger)}
.price{font-weight:700;color:var(--price)}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted);font-size:11px;font-weight:600}
.empty{text-align:center;padding:38px 16px;color:var(--muted)}.empty .e{font-size:42px;margin-bottom:6px}
.list-line{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-top:1px solid var(--line)}.list-line:first-child{border-top:0}
.strike{text-decoration:line-through;opacity:.55}
.bar{height:7px;border-radius:9px;background:var(--surface-2);overflow:hidden;margin-top:8px}.bar i{display:block;height:100%;background:var(--ok);border-radius:9px}
/* photo picker */
.photo-drop{border:2px dashed var(--line);border-radius:16px;padding:18px;text-align:center;cursor:pointer;background:var(--input);margin-bottom:12px}
.photo-drop img{max-width:100%;max-height:220px;border-radius:12px;display:block;margin:0 auto 8px}
.ai-note{display:flex;gap:8px;align-items:center;padding:10px 12px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600;margin-bottom:12px}
.spin{width:16px;height:16px;border:2px solid color-mix(in srgb,currentColor 30%,transparent);border-top-color:currentColor;border-radius:50%;animation:rot .7s linear infinite;flex:none}
/* nav */
.nav{position:fixed;left:0;right:0;bottom:0;z-index:6;display:flex;justify-content:space-around;padding:6px 8px calc(6px + var(--safe-b));background:var(--nav);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line)}
.nav button{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;font-size:11px;font-weight:600;color:var(--muted-2);cursor:pointer;max-width:120px}
.nav button i{font-style:normal;font-size:21px;line-height:1;filter:grayscale(1);opacity:.7}.nav button.on{color:var(--accent)}.nav button.on i{filter:none;opacity:1}
.fab{position:fixed;right:18px;bottom:calc(78px + var(--safe-b));z-index:6;border:0;border-radius:18px;padding:14px 18px;background:var(--accent);color:#fff;font-weight:700;font-size:15px;box-shadow:0 14px 30px -12px color-mix(in srgb,var(--accent) 90%,transparent);cursor:pointer}
/* sheet */
.sheet-wrap{position:fixed;inset:0;z-index:20;background:rgba(8,12,30,.45);display:flex;align-items:flex-end;justify-content:center;animation:fade .2s}
.sheet{position:relative;width:100%;max-width:640px;max-height:92vh;overflow:auto;background:var(--bg);border-radius:24px 24px 0 0;padding:10px 16px calc(20px + var(--safe-b));animation:up .28s var(--ease)}
.grab{width:42px;height:5px;border-radius:5px;background:var(--line);margin:0 auto 8px}.sheet h3{margin:4px 0 12px;font-size:21px;padding-right:40px}
.sheet-x{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;border:0;background:var(--surface-2);color:var(--muted);cursor:pointer}
.opt{display:flex;align-items:center;gap:12px;padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:var(--surface);margin-bottom:8px;cursor:pointer;font-weight:600}
.opt.on{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}
.pick-list{max-height:260px;overflow:auto;margin-bottom:12px}
/* toasts */
.toasts{position:fixed;left:0;right:0;top:calc(12px + var(--safe-t));z-index:40;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}
.toast{background:var(--text);color:var(--bg);padding:10px 16px;border-radius:13px;font-weight:600;font-size:14px;box-shadow:var(--shadow);animation:up .25s var(--ease);max-width:90%}
.toast.bad{background:var(--danger);color:#fff}
@keyframes fade{from{opacity:0}to{opacity:1}}@keyframes up{from{transform:translateY(24px);opacity:0}to{transform:none;opacity:1}}@keyframes rot{to{transform:rotate(360deg)}}