:root{
  --bg:#000;
  --card:#1c1c1e;
  --card2:#2c2c2e;
  --text:#fff;
  --muted:#8e8e93;
  --accent:#a78bfa;
  --accent2:#7c5cff;
  --green:#30d158;
  --red:#ff453a;
  --orange:#ff9f0a;
  --radius:26px;
  --tabbar-h:66px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:"Tajawal",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overscroll-behavior-y:none}
.hidden{display:none!important}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit}
.muted{color:var(--muted)}

/* ---------- login ---------- */
.login{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(120% 80% at 50% 0%, #1a1530 0%, #000 60%);padding:24px}
.login-box{width:100%;max-width:360px;text-align:center}
.login-logo{width:120px;height:120px;border-radius:30px;margin-bottom:24px;box-shadow:0 20px 60px rgba(124,92,255,.35)}
.login-box h1{font-size:28px;margin:0 0 6px}
.login-box p{margin:0 0 24px}
.login-box input{width:100%;padding:16px 18px;border-radius:16px;background:var(--card);border:1px solid #333;color:#fff;font-size:17px;text-align:center;margin-bottom:14px}
.login-box input:focus{outline:none;border-color:var(--accent)}
.err{color:var(--red);margin-top:14px;font-size:14px}

/* ---------- app shell ---------- */
.app{min-height:100dvh;padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 34px);max-width:560px;margin:0 auto}
#view{padding:max(env(safe-area-inset-top),12px) 18px 18px}

.page-title{font-size:34px;font-weight:800;letter-spacing:-.5px;margin:8px 0 18px}
.section-title{font-size:20px;font-weight:700;margin:26px 0 12px}
.row{display:flex;align-items:center;gap:12px}
.spread{justify-content:space-between}

/* ---------- cards ---------- */
.card{background:var(--card);border-radius:var(--radius);padding:18px}
.card+.card{margin-top:14px}
.hero{background:linear-gradient(135deg,#7c5cff,#b06ab3);border-radius:var(--radius);padding:22px;display:flex;align-items:center;gap:14px;color:#fff}
.hero .big{font-size:15px;opacity:.9}
.hero .val{font-size:30px;font-weight:800}

.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat{background:var(--card);border-radius:20px;padding:16px}
.stat .k{color:var(--muted);font-size:13px;margin-bottom:6px}
.stat .v{font-size:22px;font-weight:800}
.stat .v.green{color:var(--green)}
.stat .v.red{color:var(--red)}
.stat .v.orange{color:var(--orange)}

/* list items */
.li{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--card);border-radius:18px;margin-bottom:10px}
.li .avatar{width:42px;height:42px;border-radius:12px;background:var(--card2);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--accent);flex:0 0 auto}
.li .grow{flex:1;min-width:0}
.li .t{font-weight:600;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.li .s{color:var(--muted);font-size:13px;margin-top:2px}
.li .amt{font-weight:700;font-size:16px}
.pill{font-size:12px;padding:3px 10px;border-radius:999px;background:var(--card2);color:var(--muted)}
.pill.green{background:rgba(48,209,88,.15);color:var(--green)}
.pill.orange{background:rgba(255,159,10,.15);color:var(--orange)}
.pill.red{background:rgba(255,69,58,.15);color:var(--red)}

.empty{text-align:center;color:var(--muted);padding:50px 20px}
.empty svg{width:54px;height:54px;opacity:.4;margin-bottom:12px}

/* buttons */
.btn-primary{width:100%;padding:16px;border-radius:16px;background:var(--accent2);color:#fff;font-size:17px;font-weight:700}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{padding:12px 16px;border-radius:14px;background:var(--card2);color:#fff;font-weight:600}
.btn-danger{color:var(--red);background:rgba(255,69,58,.12)}
.fab{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 30px);z-index:30;
  background:var(--accent2);color:#fff;padding:14px 26px;border-radius:999px;font-weight:700;font-size:16px;box-shadow:0 10px 30px rgba(124,92,255,.45);display:flex;gap:8px;align-items:center}
.fab svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2.4}

/* ---------- tabbar ---------- */
.tabbar{position:fixed;bottom:calc(env(safe-area-inset-bottom) + 14px);left:14px;right:14px;
  height:var(--tabbar-h);display:flex;align-items:center;gap:2px;padding:0 8px;
  background:rgba(34,34,37,.72);backdrop-filter:blur(30px) saturate(180%);-webkit-backdrop-filter:blur(30px) saturate(180%);
  border:1px solid rgba(255,255,255,.09);border-radius:30px;box-shadow:0 12px 40px rgba(0,0,0,.55);
  z-index:40;max-width:520px;margin:0 auto}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);
  height:52px;border-radius:20px;transition:background .18s,color .18s}
.tab svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linejoin:round;stroke-linecap:round}
.tab span{font-size:11px;font-weight:600}
.tab.active{color:#fff;background:rgba(255,255,255,.12)}
.tab:active{transform:scale(.94)}

/* ---------- forms / modal ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:60;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:#111;width:100%;max-width:560px;border-radius:28px 28px 0 0;padding:8px 18px calc(24px + env(safe-area-inset-bottom));max-height:92dvh;overflow-y:auto;animation:up .25s ease}
@keyframes up{from{transform:translateY(40px);opacity:.5}to{transform:none;opacity:1}}
.sheet .grab{width:40px;height:5px;background:#555;border-radius:3px;margin:8px auto 14px}
.sheet h2{font-size:22px;margin:0 0 18px;font-weight:800}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:14px 16px;border-radius:14px;background:var(--card);border:1px solid #333;color:#fff;font-size:16px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field-row{display:flex;gap:12px}
.field-row .field{flex:1}

/* invoice item editor */
.item-line{background:var(--card);border-radius:16px;padding:12px;margin-bottom:10px}
.item-line .row{gap:8px}
.item-line select,.item-line input{padding:10px 12px;font-size:15px;border-radius:12px;background:var(--card2);border:1px solid #3a3a3c;color:#fff}
.item-line .qty{width:64px;text-align:center}
.item-line .price{width:90px;text-align:center}
.item-del{color:var(--red);font-size:22px;padding:0 6px;line-height:1}
.add-line{width:100%;padding:12px;border-radius:14px;background:var(--card2);color:var(--accent);font-weight:700;margin-bottom:10px}

.totals{background:var(--card);border-radius:16px;padding:14px 16px;margin:10px 0}
.totals .row{justify-content:space-between;padding:5px 0}
.totals .grand{font-size:20px;font-weight:800;border-top:1px solid #333;margin-top:6px;padding-top:10px}

.toast{position:fixed;bottom:calc(var(--tabbar-h) + 30px);left:50%;transform:translateX(-50%);background:#fff;color:#000;padding:12px 22px;border-radius:999px;font-weight:700;z-index:100;box-shadow:0 10px 30px rgba(0,0,0,.4);animation:up .2s}

/* mini bar chart */
.bars{display:flex;align-items:flex-end;gap:6px;height:120px;padding-top:10px}
.bars .bar{flex:1;background:linear-gradient(180deg,var(--accent),var(--accent2));border-radius:6px 6px 0 0;min-height:4px;position:relative}
.bars .bar span{position:absolute;bottom:-20px;left:0;right:0;text-align:center;font-size:9px;color:var(--muted)}

a.link{color:var(--accent);text-decoration:none}
.divider{height:1px;background:#2a2a2c;margin:6px 0}