:root{
  --color-bg:            #FAF6EC;   /* পুরনো খাতার পাতার মতো হালকা ক্রিম */
  --color-surface:       #FFFFFF;
  --color-surface-soft:  #F4EFE0;
  --color-primary:       #0B6E4F;   /* গাঢ় সবুজ (টাকার নোট) */
  --color-primary-dark:  #073D2C;
  --color-primary-tint:  #E3F0E8;
  --color-accent:        #DDA221;   /* হলুদ/সোনালী (মসলা) */
  --color-accent-dark:   #A8790F;
  --color-accent-tint:   #FBF0D6;
  --color-ink:           #24302A;
  --color-muted:         #6E7A70;
  --color-border:        #E4DCC6;
  --color-danger:        #B33A2E;
  --color-danger-tint:   #F7E3DF;

  /* উন্নত ফন্ট স্ট্যাক */
  --font-display: 'Tiro Bangla', 'Noto Serif Bengali', 'SolaimanLipi', serif;
  --font-body: 'Hind Siliguri', 'Noto Sans Bengali', 'SolaimanLipi', sans-serif;
  --font-numbers: 'Inter', 'Roboto', 'Segoe UI', sans-serif;  /* সংখ্যার জন্য আলাদা ফন্ট */

  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-card: 0 1px 2px rgba(36,48,42,0.06), 0 6px 16px rgba(36,48,42,0.07);
  --sidebar-w: 236px;
}

*{ box-sizing: border-box; }

html, body{
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 15.5px;
  max-width: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;  /* ফন্ট মসৃণ করা */
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, .brand-mark, .stamp{
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;  /* হেডিং-এ সামান্য নেগেটিভ স্পেসিং */
}

h3{ font-weight: 700; letter-spacing: .2px; }

a{ color: var(--color-primary-dark); }
a:hover{ color: var(--color-accent-dark); }

/* ---------------------------------------------------------------------- */
/* সংখ্যার জন্য বিশেষ স্টাইল — টেবিল, মূল্য, ড্যাশবোর্ড                   */
/* ---------------------------------------------------------------------- */

/* টেবিলের সংখ্যা */
.table td, .table th{
  font-variant-numeric: tabular-nums;  /* সংখ্যা সমানভাবে বসবে */
  font-feature-settings: "tnum";  /* সংখ্যার জন্য টেবুলার সংখ্যা */
}

/* টাকার পরিমাণ */
.tag-value, .receipt-total-row td, .amount, .price, .total{
  font-family: var(--font-numbers);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* ড্যাশবোর্ডের বড় সংখ্যা */
.tag-value{
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.2;
}

/* ইনপুট ফিল্ডের সংখ্যা */
.form-control, .form-select{
  font-variant-numeric: tabular-nums;
}

/* টেবিলের সংখ্যা সারিবদ্ধভাবে */
.table td{
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------------- */
/* লেআউট: বাম পাশে স্থায়ী সাইডবার + মূল কনটেন্ট                        */
/* ---------------------------------------------------------------------- */
.app-shell{ display: flex; min-height: 100vh; }

.sidebar{
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--color-primary-dark) 0%, #0A5A40 100%);
  color: #EFE9D8;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0;
  left: 0;
  z-index: 40;
  transition: transform .2s ease;
  border-right: 1px solid rgba(0,0,0,0.12);
}

.sidebar .brand{
  display: flex; align-items: center; gap: 10px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(239,233,216,0.14);
}
.sidebar .brand-mark{
  font-size: 1.32rem;
  font-weight: 700;
  color: #FBF6E6;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.sidebar .brand-sub{
  font-size: .72rem;
  color: #B9CFC0;
  margin-top: 1px;
  letter-spacing: .2px;
}
.brand-emblem{
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary-dark); flex-shrink: 0;
}

.sidebar nav{ flex: 1; padding: 14px 12px; overflow-y: auto; }
.sidebar .nav-group-label{
  font-size: .68rem; color: #8FAC9C; margin: 14px 10px 6px; letter-spacing: .3px;
}
.sidebar .nav-link{
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; margin-bottom: 2px;
  border-radius: var(--radius-md);
  color: #E4EFE7 !important;
  font-size: .93rem;
  transition: background .12s ease, color .12s ease;
  font-weight: 500;
}
.sidebar .nav-link svg{ width: 18px; height: 18px; flex-shrink: 0; opacity: .9; }
.sidebar .nav-link:hover{ background: rgba(255,255,255,0.08); }
.sidebar .nav-link.active{
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  font-weight: 600;
}
.sidebar .nav-link.active svg{ opacity: 1; }

.sidebar .nav-cta{
  margin: 10px 12px 4px;
  background: rgba(221,162,33,0.16);
  border: 1px dashed rgba(221,162,33,0.55);
}
.sidebar .nav-cta:hover{ background: rgba(221,162,33,0.26); }

.sidebar-footer{
  padding: 14px 16px 18px; border-top: 1px solid rgba(239,233,216,0.14);
}
.sidebar-user{ display:flex; align-items:center; gap:10px; margin-bottom: 10px; }
.sidebar-avatar{
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--color-primary-tint); color: var(--color-primary-dark);
  display:flex; align-items:center; justify-content:center; font-weight:700;
  flex-shrink: 0;
  font-size: .9rem;
}
.sidebar-user-name{ font-size: .87rem; color: #F3EEDD; line-height: 1.2; }
.sidebar-user-role{ font-size: .72rem; color: #9FC0AE; }

.btn-logout{
  width: 100%; display:flex; align-items:center; justify-content:center; gap:8px;
  background: transparent; border: 1px solid rgba(239,233,216,0.3);
  color: #EFE9D8; border-radius: var(--radius-md); padding: 7px 10px; font-size: .86rem;
}
.btn-logout:hover{ background: rgba(255,255,255,0.08); color: #fff; }

.main-area{ 
  margin-right: 0;
  margin-left: var(--sidebar-w);
  flex: 1; 
  min-width: 0; 
}

.topbar{
  display:flex; align-items:center; justify-content: space-between;
  padding: 14px 26px; background: transparent;
}
.topbar-toggle{ display:none; }

.content{ padding: 4px 26px 40px; }

/* 'স্ট্যাম্প' ব্যাজ — মালিক/স্টাফ বোঝাতে রাবার স্ট্যাম্পের মতো দেখতে */
.stamp{
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 11px; border-radius: 999px;
  font-size: .74rem; font-weight: 700; letter-spacing: .3px;
  border: 1.5px solid currentColor;
  transform: rotate(-2deg);
}
.stamp-owner{ color: var(--color-accent-dark); background: var(--color-accent-tint); }
.stamp-staff{ color: var(--color-primary); background: var(--color-primary-tint); }

/* ---------------------------------------------------------------------- */
/* কার্ড, টেবিল, ফর্ম — বুটস্ট্র্যাপ কম্পোনেন্ট রিস্কিন                  */
/* ---------------------------------------------------------------------- */
.card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-card);
}

.table{ background: var(--color-surface); margin-bottom: 0; font-variant-numeric: tabular-nums; }
.table thead th{
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary-dark);
  border-bottom: 2.5px solid var(--color-accent) !important;
  background: var(--color-surface-soft);
  font-size: .92rem;
  letter-spacing: .01em;
}
.table tbody tr:nth-child(even){ background: var(--color-primary-tint); }
.table tbody tr:hover{ background: var(--color-accent-tint); }
.table td, .table th{ border-color: var(--color-border); vertical-align: middle; }
.table tfoot td{ border-top: 2px solid var(--color-accent); background: var(--color-surface-soft); }

.badge.bg-success{ background: var(--color-primary) !important; }
.badge.bg-secondary{ background: #8B9A8F !important; }
.badge.bg-info{ background: var(--color-accent) !important; color: var(--color-primary-dark) !important; }

.btn{ border-radius: var(--radius-md); font-weight: 600; padding: .48rem 1rem; }
.btn-primary{ background: var(--color-primary); border-color: var(--color-primary); }
.btn-primary:hover{ background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-success{ background: var(--color-primary); border-color: var(--color-primary); }
.btn-success:hover{ background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn-outline-primary{ color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline-primary:hover{ background: var(--color-primary); border-color: var(--color-primary); }
.btn-outline-secondary{ color: var(--color-muted); border-color: var(--color-border); }
.btn-outline-danger{ color: var(--color-danger); border-color: var(--color-danger); }
.btn-outline-danger:hover{ background: var(--color-danger); border-color: var(--color-danger); }
.btn-outline-warning{ color: var(--color-accent-dark); border-color: var(--color-accent); }
.btn-outline-warning:hover{ background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.form-control, .form-select{
  border-radius: var(--radius-md);
  border-color: var(--color-border);
  background: var(--color-surface);
  font-variant-numeric: tabular-nums;
}
.form-control:focus, .form-select:focus{
  border-color: var(--color-primary);
  box-shadow: 0 0 0 .2rem var(--color-primary-tint);
}
.form-check-input:checked{ background-color: var(--color-primary); border-color: var(--color-primary); }

.alert{ border-radius: var(--radius-md); border: 1px solid transparent; }
.alert-success{ background: var(--color-primary-tint); color: var(--color-primary-dark); }
.alert-info{ background: var(--color-accent-tint); color: var(--color-accent-dark); }
.alert-danger{ background: var(--color-danger-tint); color: var(--color-danger); }

/* ---------------------------------------------------------------------- */
/* ড্যাশবোর্ড — মূল্য-ট্যাগ (price-tag) ধাঁচের স্ট্যাট টাইল             */
/* ---------------------------------------------------------------------- */
.tag-stats{ display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-bottom: 22px; }
@media (max-width: 900px){ .tag-stats{ grid-template-columns: 1fr; } }

.tag-tile{
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px 16px 26px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.tag-tile::before{
  /* ট্যাগের ছিদ্র (perforation hole) */
  content: "";
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
}
.tag-tile::after{
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: var(--color-accent);
}
.tag-label{ color: var(--color-muted); font-size: .82rem; margin-bottom: 4px; }
.tag-value{ 
  font-family: var(--font-numbers); 
  font-size: 1.8rem; 
  font-weight: 700; 
  color: var(--color-primary-dark); 
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.tag-sub{ font-size: .78rem; color: var(--color-muted); margin-top: 2px; }

.section-card{ padding: 20px; margin-bottom: 20px; }
.section-title{
  font-family: var(--font-display); font-weight: 700; font-size: 1.1rem;
  color: var(--color-primary-dark); margin-bottom: 14px;
  padding-bottom: 10px; border-bottom: 1px dashed var(--color-border);
  letter-spacing: -0.01em;
}

/* ---------------------------------------------------------------------- */
/* রশিদ/ইনভয়েস স্টাইল                                                    */
/* ---------------------------------------------------------------------- */
.receipt-card{ max-width: 560px; margin: 0 auto; }
.receipt-head{
  display:flex; justify-content: space-between; align-items:flex-start;
  padding-bottom: 14px; margin-bottom: 14px;
  border-bottom: 2px dashed var(--color-border);
}
.receipt-head h4{ font-family: var(--font-display); margin-bottom: 2px; }
.receipt-meta{ font-size: .88rem; color: var(--color-muted); line-height: 1.7; }
.receipt-total-row td{ 
  font-family: var(--font-display); 
  font-size: 1.05rem; 
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------------- */
/* লগইন পাতা                                                              */
/* ---------------------------------------------------------------------- */
.login-shell{
  min-height: 100vh; display:flex; align-items: stretch;
  background: var(--color-primary-dark);
}
.login-art{
  flex: 1.1; display:flex; flex-direction: column; justify-content: center;
  padding: 60px; color: #F3EEDD;
  background:
    radial-gradient(circle at 15% 20%, rgba(221,162,33,0.18), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(221,162,33,0.12), transparent 45%),
    linear-gradient(160deg, #0A5A40, #073D2C 70%);
}
.login-art .brand-emblem{ width: 52px; height: 52px; border-radius: 14px; margin-bottom: 22px; }
.login-art h1{ 
  font-family: var(--font-display); 
  font-size: 2.1rem; 
  line-height: 1.35; 
  max-width: 420px;
  letter-spacing: -0.02em;
}
.login-art p{ color: #BFD8C9; max-width: 380px; margin-top: 10px; }
.login-form-wrap{
  flex: 1; display:flex; align-items:center; justify-content:center;
  background: var(--color-bg); padding: 40px 24px;
}
.login-card{
  width: 100%; max-width: 380px; background: var(--color-surface);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
  padding: 34px 30px; border: 1px solid var(--color-border);
}
.login-card h3{ margin-bottom: 4px; }
.login-card .sub{ color: var(--color-muted); font-size: .9rem; margin-bottom: 22px; }
.demo-hint{
  margin-top: 18px; font-size: .78rem; color: var(--color-muted);
  background: var(--color-surface-soft); border-radius: var(--radius-md);
  padding: 10px 12px; border: 1px dashed var(--color-border);
}

@media (max-width: 860px){
  .login-art{ display: none; }
}

/* ---------------------------------------------------------------------- */
/* মোবাইল: সাইডবার টগল (ডানপাশ থেকে সোয়াইপ করে খোলে)                    */
/* ---------------------------------------------------------------------- */
.sidebar-overlay{
  display: none;
  position: fixed; inset: 0;
  background: rgba(7,61,44,0.4);
  z-index: 39;
  opacity: 0;
  transition: opacity .2s ease;
}
.sidebar-overlay.show{ display: block; opacity: 1; }

@media (max-width: 991.98px){
  .sidebar{
    width: min(78vw, 300px);
    right: 0;
    left: auto;
    transform: translateX(100%);
    border-left: 1px solid rgba(0,0,0,0.2);
    border-right: none;
  }
  .sidebar.open{ 
    transform: translateX(0); 
    box-shadow: -8px 0 32px rgba(0,0,0,0.28);
  }
  .main-area{ margin-left: 0; width: 100%; }
  
  .topbar{
    justify-content: space-between;
    padding: 12px 16px;
    position: sticky; top: 0;
    background: var(--color-bg);
    z-index: 20;
  }
  .topbar-toggle{
    display:flex;
    margin-left: auto;
  }
}

@media (min-width: 992px){
  .sidebar-overlay{ display: none !important; }
}

@media (prefers-reduced-motion: reduce){
  .sidebar, .sidebar-overlay{ transition: none; }
}