:root{--bg:#f4f7fb;--dark:#101828;--muted:#667085;--line:#e4e7ec;--primary:#155eef;--success:#12b76a;--danger:#f04438}
body{background:var(--bg);font-family:Segoe UI,Arial,sans-serif;color:var(--dark)}
.shell{display:flex;min-height:100vh}.side{position:fixed;inset:0 auto 0 0;width:270px;background:#0b1220;color:white;padding:22px;overflow:auto}.side a{display:block;color:#d0d5dd;text-decoration:none;padding:12px 14px;border-radius:12px}.side a:hover{background:#172033;color:#fff}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:25px}.brand small{display:block;color:#98a2b3}.logo{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,#155eef,#12b76a);display:grid;place-items:center;font-weight:800;color:#fff}.big{width:64px;height:64px;margin:auto;font-size:22px}
.main{margin-left:270px;width:calc(100% - 270px)}.top{height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 28px;position:sticky;top:0;z-index:5}.top h5{margin:0}.top span,.title p{color:var(--muted)}.content{padding:28px}
.cardx,.metric{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 8px 25px rgba(16,24,40,.06)}.metric span{display:block;color:var(--muted)}.metric b{font-size:28px}.metric.danger b{color:var(--danger)}
.login{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#dbe6ff,#f4f7fb 50%,#fff)}.login-card{width:min(430px,92vw);background:#fff;border-radius:28px;padding:34px;text-align:center;box-shadow:0 22px 60px rgba(16,24,40,.18)}
.pos{display:grid;grid-template-columns:430px 1fr;gap:22px}.cart{min-height:320px;max-height:48vh;overflow:auto;border:1px dashed var(--line);border-radius:18px;padding:10px}.cart-item{display:grid;grid-template-columns:1fr 78px 90px 34px;gap:8px;align-items:center;border-bottom:1px solid var(--line);padding:10px 0}.tot div{display:flex;justify-content:space-between;padding:8px 0}.tot input{width:110px}.grand{border-top:2px solid var(--line);font-size:22px}
.products{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.prod{border:1px solid var(--line);background:white;border-radius:20px;min-height:120px;padding:16px;text-align:left;box-shadow:0 8px 20px rgba(16,24,40,.06)}.prod span{display:block;color:var(--primary);font-weight:800;margin-top:8px}.prod small{color:var(--muted)}
@media(max-width:1000px){.side{position:relative;width:100%}.main{margin-left:0;width:100%}.shell{display:block}.pos{grid-template-columns:1fr}}

.prod-img{width:100%;height:70px;object-fit:cover;border-radius:14px;margin-bottom:10px;background:#eef2ff}
.prod-img.empty{display:grid;place-items:center;color:white;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}
.mini-img{width:54px;height:54px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.logo-preview{max-width:140px;max-height:80px;border:1px solid var(--line);border-radius:12px;padding:6px;background:#fff}
.ri-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.ri-grid div{border:1px solid var(--line);border-radius:18px;padding:18px;background:#f9fafb}
.ri-grid b{display:block;color:#155eef;margin-bottom:8px}

.prod-img{width:100%;height:70px;object-fit:cover;border-radius:14px;margin-bottom:10px;background:#eef2ff}.prod-img.empty{display:grid;place-items:center;color:white;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}.mini-img{width:54px;height:54px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}.logo-preview{max-width:140px;max-height:80px;border:1px solid var(--line);border-radius:12px;padding:6px;background:#fff}.ri-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.ri-grid div{border:1px solid var(--line);border-radius:18px;padding:18px;background:#f9fafb}.ri-grid b{display:block;color:#155eef;margin-bottom:8px}.ri-grid span{color:#667085}

.prod-img{width:100%;height:70px;object-fit:cover;border-radius:14px;margin-bottom:10px;background:#eef2ff}
.prod-img.empty{display:grid;place-items:center;color:white;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}
.mini-img{width:54px;height:54px;object-fit:cover;border-radius:12px;border:1px solid #e4e7ec}

.prod-img{width:100%;height:70px;object-fit:cover;border-radius:14px;margin-bottom:10px;background:#eef2ff}
.prod-img.empty{display:grid;place-items:center;color:white;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}
.modal .form-control,.modal .form-select{border-radius:10px}


.menu-toggle{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:10px;padding:7px 10px;margin:10px 16px;display:block}
.shell.menu-collapsed .side{width:78px}
.shell.menu-collapsed .main{margin-left:78px}
.shell.menu-collapsed .brand-text{display:none}
.shell.menu-collapsed .nav-links a{font-size:0;height:38px;overflow:hidden}
.shell.menu-collapsed .nav-links a::first-letter{font-size:14px;color:#fff}
.mini-img{width:54px;height:54px;object-fit:cover;border-radius:12px;border:1px solid #e4e7ec;background:#fff}
.empty-mini{display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}
.prod-img{width:100%;height:70px;object-fit:cover;border-radius:14px;margin-bottom:10px;background:#eef2ff}
.prod-img.empty{display:grid;place-items:center;color:white;background:linear-gradient(135deg,#155eef,#12b76a);font-weight:800}
@media(max-width:900px){.shell.menu-collapsed .side{width:0;overflow:hidden}.shell.menu-collapsed .main{margin-left:0}}