:root{
    --ktv-bg:#080b18;
    --ktv-bg-2:#10162a;
    --ktv-panel:#ffffff;
    --ktv-panel-soft:#f7f8fc;
    --ktv-text:#111827;
    --ktv-muted:#64748b;
    --ktv-border:#e5e7eb;
    --ktv-primary:#7c3aed;
    --ktv-primary-2:#ec4899;
    --ktv-cyan:#06b6d4;
    --ktv-green:#10b981;
    --ktv-orange:#f59e0b;
    --ktv-red:#ef4444;
    --ktv-radius:22px;
    --ktv-shadow:0 20px 60px rgba(15,23,42,.14);
    --ktv-sidebar:268px;
}
*{box-sizing:border-box}
html,body{min-height:100%;margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,"Helvetica Neue",sans-serif;color:var(--ktv-text);background:#f3f5fb;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
a{text-decoration:none}
button,input,select,textarea{font-family:inherit}
body.ktv-app{background:linear-gradient(120deg,#f7f8ff 0%,#eef3ff 42%,#fff7fb 100%)}
.ktv-shell{display:flex;min-height:100vh;width:100%}
.ktv-sidebar{width:var(--ktv-sidebar);min-width:var(--ktv-sidebar);background:linear-gradient(180deg,#10152b 0%,#151936 44%,#100b22 100%);color:#fff;position:fixed;left:0;top:0;bottom:0;z-index:1000;display:flex;flex-direction:column;box-shadow:18px 0 50px rgba(15,23,42,.22);transition:transform .22s ease,width .22s ease;overflow:hidden}
.ktv-brand{height:86px;display:flex;align-items:center;gap:14px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.ktv-brand-logo{width:50px;height:50px;border-radius:18px;background:linear-gradient(135deg,var(--ktv-primary),var(--ktv-primary-2));display:grid;place-items:center;font-size:25px;box-shadow:0 10px 28px rgba(236,72,153,.35)}
.ktv-brand-title{font-weight:900;letter-spacing:.2px;line-height:1.05;font-size:18px;white-space:nowrap}.ktv-brand-sub{font-size:12px;color:rgba(255,255,255,.58);margin-top:4px;white-space:nowrap}.ktv-nav{padding:14px 12px;overflow:auto;flex:1}.ktv-nav a{display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.74);padding:12px 14px;margin:4px 0;border-radius:16px;font-weight:700;font-size:14px;transition:.18s ease}.ktv-nav a i{font-size:19px;width:24px;text-align:center}.ktv-nav a:hover,.ktv-nav a.active{color:#fff;background:rgba(255,255,255,.11);box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}.ktv-sidebar-foot{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.55)}
.ktv-main{margin-left:var(--ktv-sidebar);min-height:100vh;width:calc(100% - var(--ktv-sidebar));transition:margin-left .22s ease,width .22s ease}.ktv-topbar{height:76px;position:sticky;top:0;z-index:900;display:flex;align-items:center;justify-content:space-between;padding:0 26px;background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(226,232,240,.88)}.ktv-top-left,.ktv-top-right{display:flex;align-items:center;gap:12px}.ktv-icon-btn{width:43px;height:43px;border:0;border-radius:15px;background:#fff;color:#1f2937;display:grid;place-items:center;box-shadow:0 10px 24px rgba(15,23,42,.08);font-size:21px}.ktv-page-title{font-size:19px;font-weight:900;line-height:1.1}.ktv-page-sub{font-size:12px;color:var(--ktv-muted);margin-top:3px}.ktv-user-pill{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:999px;background:#fff;box-shadow:0 10px 24px rgba(15,23,42,.08);font-size:14px;font-weight:800}.ktv-user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--ktv-primary),var(--ktv-cyan));display:grid;place-items:center;color:#fff}.ktv-logout{height:42px;padding:0 15px;border-radius:14px;border:0;background:#111827;color:#fff;font-weight:800;display:flex;align-items:center;gap:8px}.ktv-content{padding:26px;min-height:calc(100vh - 76px)}
.ktv-card{background:#fff;border:1px solid rgba(226,232,240,.9);border-radius:var(--ktv-radius);box-shadow:var(--ktv-shadow)}.ktv-card-pad{padding:22px}.ktv-grid{display:grid;gap:18px}.ktv-stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.ktv-stat{position:relative;overflow:hidden}.ktv-stat::after{content:"";position:absolute;right:-36px;top:-40px;width:120px;height:120px;border-radius:50%;background:linear-gradient(135deg,rgba(124,58,237,.15),rgba(236,72,153,.12))}.ktv-stat-label{font-size:13px;color:var(--ktv-muted);font-weight:800}.ktv-stat-value{font-size:32px;font-weight:950;margin-top:4px;letter-spacing:-.6px}.ktv-stat-note{font-size:12px;color:#94a3b8;font-weight:700}.ktv-chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px;border-radius:999px;background:#f1f5f9;color:#475569;font-size:13px;font-weight:850}.ktv-chip.primary{background:#ede9fe;color:#6d28d9}.ktv-chip.green{background:#dcfce7;color:#047857}.ktv-chip.red{background:#fee2e2;color:#b91c1c}.ktv-chip.orange{background:#ffedd5;color:#c2410c}.ktv-btn{border:0;border-radius:15px;padding:11px 15px;font-weight:900;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.15s ease;white-space:nowrap}.ktv-btn:hover{transform:translateY(-1px)}.ktv-btn-primary{background:linear-gradient(135deg,var(--ktv-primary),var(--ktv-primary-2));color:#fff;box-shadow:0 12px 28px rgba(124,58,237,.22)}.ktv-btn-dark{background:#111827;color:#fff}.ktv-btn-light{background:#fff;color:#111827;border:1px solid var(--ktv-border)}.ktv-btn-green{background:var(--ktv-green);color:#fff}.ktv-btn-red{background:var(--ktv-red);color:#fff}.ktv-btn-orange{background:var(--ktv-orange);color:#111827}.ktv-input,.form-control,.form-select{border-radius:15px!important;border:1px solid #dbe2ee!important;min-height:44px;box-shadow:none!important}.ktv-input:focus,.form-control:focus,.form-select:focus{border-color:#8b5cf6!important;box-shadow:0 0 0 .22rem rgba(124,58,237,.12)!important}.ktv-label{font-size:13px;font-weight:850;color:#475569;margin-bottom:7px}.ktv-empty{padding:34px;text-align:center;color:#64748b;background:#f8fafc;border-radius:20px;border:1px dashed #cbd5e1}.ktv-table{width:100%;border-collapse:separate;border-spacing:0 10px}.ktv-table th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#64748b;padding:0 12px}.ktv-table td{background:#fff;padding:14px 12px;border-top:1px solid #edf2f7;border-bottom:1px solid #edf2f7;vertical-align:middle}.ktv-table td:first-child{border-left:1px solid #edf2f7;border-radius:16px 0 0 16px}.ktv-table td:last-child{border-right:1px solid #edf2f7;border-radius:0 16px 16px 0}.ktv-money{font-weight:950;color:#dc2626}.ktv-loading{position:fixed;inset:0;background:rgba(255,255,255,.72);backdrop-filter:blur(6px);z-index:3000;display:none;align-items:center;justify-content:center}.ktv-loading.show{display:flex}.ktv-spinner{width:54px;height:54px;border-radius:50%;border:5px solid #e9d5ff;border-top-color:var(--ktv-primary);animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.ktv-toast{position:fixed;right:22px;bottom:22px;z-index:4000;padding:14px 17px;border-radius:16px;background:#111827;color:#fff;box-shadow:0 18px 48px rgba(15,23,42,.28);display:none;max-width:380px;font-weight:800}.ktv-toast.show{display:block}.ktv-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:999}.sidebar-collapsed .ktv-sidebar{transform:translateX(-100%)}.sidebar-collapsed .ktv-main{margin-left:0;width:100%}
@media(max-width:1100px){.ktv-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ktv-sidebar{transform:translateX(-100%)}.ktv-main{margin-left:0;width:100%}body.mobile-menu-open .ktv-sidebar{transform:translateX(0)}body.mobile-menu-open .ktv-backdrop{display:block}.sidebar-collapsed .ktv-sidebar{transform:translateX(-100%)}}
@media(max-width:768px){.ktv-content{padding:16px}.ktv-topbar{padding:0 14px}.ktv-stat-grid{grid-template-columns:1fr}.ktv-page-sub,.ktv-user-pill span{display:none}.ktv-top-right{gap:8px}.ktv-card-pad{padding:16px}.ktv-btn{padding:10px 12px}.ktv-table-wrap{overflow:auto}}


/* FIX 18/06: menu trái luôn hiển thị trên desktop, font tiếng Việt nhẹ và mượt hơn */
html,body{font-family:"Segoe UI",Roboto,Arial,"Helvetica Neue",sans-serif!important;font-weight:400;letter-spacing:0!important}
.ktv-brand-title,.ktv-page-title,.ktv-stat-value,.ktv-btn,.ktv-nav a,.ktv-chip,.ktv-user-pill,.ktv-label{font-weight:600!important}
.ktv-table th,.ktv-stat-label,.product-name,.section-title,.bill-item-name{font-weight:600!important}
.ktv-sidebar{transform:translateX(0)!important;display:flex!important;visibility:visible!important}
.ktv-main{margin-left:var(--ktv-sidebar)!important;width:calc(100% - var(--ktv-sidebar))!important}
body.sidebar-collapsed .ktv-sidebar{transform:translateX(0)!important}
body.sidebar-collapsed .ktv-main{margin-left:var(--ktv-sidebar)!important;width:calc(100% - var(--ktv-sidebar))!important}
@media(max-width:1100px){
    .ktv-sidebar{transform:translateX(-100%)!important}
    .ktv-main{margin-left:0!important;width:100%!important}
    body.mobile-menu-open .ktv-sidebar{transform:translateX(0)!important}
    body.mobile-menu-open .ktv-backdrop{display:block!important}
}

/* =========================================================
   TYPOGRAPHY UPDATE 21/06/2026
   Font quốc tế, tròn, rõ và đồng nhất toàn bộ hệ thống
   ========================================================= */
:root{
    --ktv-font-ui:"Inter","SF Pro Display","Segoe UI Variable","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
    --ktv-font-number:"Inter","SF Pro Display","Segoe UI Variable","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

html,
body,
body.ktv-app,
input,
button,
select,
textarea,
.form-control,
.form-select,
.btn,
.table,
.modal,
.dropdown-menu,
.tooltip,
.popover{
    font-family:var(--ktv-font-ui)!important;
    font-synthesis:none;
    text-rendering:optimizeLegibility;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    letter-spacing:-.01em;
}

body{
    font-size:15px;
    font-weight:450;
    line-height:1.5;
    color:#111827;
}

h1,h2,h3,h4,h5,h6,
.page-title,
.ktv-page-title,
.section-title,
.modal-title,
.card-title,
.product-name,
.bill-item-name,
.time-name,
.staff-name{
    font-family:var(--ktv-font-ui)!important;
    font-weight:700!important;
    letter-spacing:-.025em!important;
    line-height:1.22;
    color:#0f172a;
}

h1,.page-title{
    font-size:clamp(28px,2.1vw,38px);
}

.ktv-brand-title{
    font-family:var(--ktv-font-ui)!important;
    font-size:18px!important;
    font-weight:750!important;
    letter-spacing:-.02em!important;
}

.ktv-brand-sub,
.ktv-page-sub,
.note-text,
.small-note,
.text-muted,
.bill-item-sub,
.time-sub,
.staff-sub{
    font-weight:450!important;
    letter-spacing:-.005em!important;
}

.ktv-nav a{
    font-family:var(--ktv-font-ui)!important;
    font-size:14px!important;
    font-weight:600!important;
    letter-spacing:-.01em!important;
}

.ktv-btn,
.btn,
button,
.ktv-chip,
.ktv-user-pill,
.ktv-logout{
    font-family:var(--ktv-font-ui)!important;
    font-weight:650!important;
    letter-spacing:-.012em!important;
}

.ktv-label,
.form-label,
label{
    font-family:var(--ktv-font-ui)!important;
    font-weight:600!important;
    letter-spacing:-.01em!important;
    color:#334155;
}

input,
select,
textarea,
.form-control,
.form-select,
.ktv-input{
    font-size:15px!important;
    font-weight:450!important;
    letter-spacing:-.006em!important;
    color:#0f172a!important;
}

input::placeholder,
textarea::placeholder{
    color:#94a3b8!important;
    opacity:1;
    font-weight:400!important;
}

.ktv-table,
.table,
table{
    font-family:var(--ktv-font-ui)!important;
    font-variant-numeric:tabular-nums;
}

.ktv-table th,
.table th,
table th{
    font-family:var(--ktv-font-ui)!important;
    font-size:13px;
    font-weight:650!important;
    letter-spacing:-.006em!important;
    text-transform:none;
    color:#475569;
}

.ktv-table td,
.table td,
table td{
    font-family:var(--ktv-font-ui)!important;
    font-size:14px;
    font-weight:450!important;
    letter-spacing:-.006em!important;
}

.ktv-money,
.product-price,
.ktv-stat-value,
.summary-total b,
.grand-total-value,
.money,
.price{
    font-family:var(--ktv-font-number)!important;
    font-weight:700!important;
    letter-spacing:-.02em!important;
    font-variant-numeric:tabular-nums lining-nums;
}

.ktv-stat-label,
.ktv-chip,
.product-cat{
    font-weight:600!important;
}

.card,
.ktv-card,
.product-card,
.bill-item,
.time-item,
.staff-item{
    font-family:var(--ktv-font-ui)!important;
}

/* Không áp dụng font giao diện cho mẫu in hóa đơn */
@media print{
    .bill,
    .bill-wrap,
    .bill *,
    .bill-wrap *{
        font-family:"Times New Roman",serif!important;
        letter-spacing:0!important;
    }
}