/* ============================================================
   Inventory Management System — Stylesheet
   ============================================================ */

:root {
  /* Your Palette */
  --yale:     #1B4965;
  --pacific:  #62B6CB;
  --fresh:    #5FA8D3;
  --pale:     #CAE9FF;
  --frozen:   #BEE9E8;
  --espresso: #0d2d3f;
  --roast:    #1B4965;
  --caramel:  #5FA8D3;
  --gold:     #CAE9FF;
  --cream:    #f0f8ff;
  --milk:     #f7fbff;
  --foam:     #ffffff;
  --steam:    rgba(95,168,211,0.08);
  --danger:   #c0392b;
  --success:  #1a7a5e;
  --warning:  #b07d1a;
  --info:     #1B4965;
  --border:   rgba(98,182,203,0.22);
  --shadow:   0 4px 32px rgba(27,73,101,0.10);
  --shadow-lg:0 8px 48px rgba(27,73,101,0.16);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--cream); color: var(--espresso); min-height: 100vh; font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
h1,h2,h3 { font-family: 'Inter', 'Sora', -apple-system, sans-serif; font-weight: 700; letter-spacing: -0.01em; }

.login-bg { min-height: 100vh; background: linear-gradient(135deg, #0d2d3f 0%, #1B4965 55%, #2a6a8a 100%); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.login-bg::before { content:''; position:absolute; inset:0; background: radial-gradient(ellipse at 25% 75%, rgba(95,168,211,0.20) 0%, transparent 55%), radial-gradient(ellipse at 80% 15%, rgba(202,233,255,0.12) 0%, transparent 50%); }
.login-card { background: rgba(255,255,255,0.97); border-radius: 24px; padding: 52px 44px; width: 100%; max-width: 420px; box-shadow: var(--shadow-lg), 0 0 0 1px rgba(98,182,203,0.18); position: relative; z-index: 1; text-align: center; }
.login-logo { font-size: 48px; margin-bottom: 8px; }
.login-card h1 { font-size: 2rem; color: var(--yale); margin-bottom: 4px; }
.login-card p { color: #4a7a96; font-size: 0.95rem; margin-bottom: 36px; }
.google-btn { width: 100%; padding: 14px 20px; border-radius: 12px; border: 2px solid var(--border); background: var(--foam); display: flex; align-items: center; justify-content: center; gap: 12px; font-family: 'DM Sans', sans-serif; font-size: 1rem; font-weight: 500; color: var(--yale); cursor: pointer; transition: all 0.2s; box-shadow: 0 2px 8px rgba(27,73,101,0.07); }
.google-btn:hover { background: var(--pale); border-color: var(--pacific); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(27,73,101,0.12); }
.google-icon { width:22px; height:22px; }
.access-denied { background: #fff0f0; border: 1px solid #f5c6c6; border-radius: 10px; padding: 14px 18px; margin-top: 18px; color: var(--danger); font-size: 0.9rem; }

.app-layout { display: flex; min-height: 100vh; }
.sidebar { width: 260px; min-height: 100vh; background: var(--yale); display: flex; flex-direction: column; position: fixed; left: 0; top: 0; bottom: 0; z-index: 100; box-shadow: 4px 0 24px rgba(27,73,101,0.22); }
.sidebar-header { padding: 28px 24px 20px; border-bottom: 1px solid rgba(202,233,255,0.15); background: linear-gradient(180deg, #0d2d3f 0%, #1B4965 100%); }
.sidebar-logo { font-size: 28px; margin-bottom: 4px; }
.sidebar-title { font-family: 'DM Sans', sans-serif; font-size: 1.15rem; color: var(--pale); line-height: 1.3; }
.sidebar-subtitle { font-size: 0.75rem; color: rgba(202,233,255,0.45); margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-section { margin-bottom: 6px; }
.nav-section-label { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(98,182,203,0.65); padding: 8px 12px 4px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; color: rgba(202,233,255,0.75); font-size: 0.9rem; font-weight: 400; cursor: pointer; transition: all 0.18s; margin-bottom: 2px; }
.nav-item:hover { background: rgba(95,168,211,0.15); color: #fff; }
.nav-item.active { background: rgba(95,168,211,0.28); color: var(--pale); font-weight: 600; border-left: 3px solid var(--pacific); padding-left: 9px; }
.nav-item .nav-icon { font-size: 1.1rem; width: 22px; text-align: center; }
.sidebar-user { padding: 16px; border-top: 1px solid rgba(202,233,255,0.12); display: flex; align-items: center; gap: 10px; background: rgba(13,45,63,0.4); }
.user-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--pacific); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: white; flex-shrink: 0; }
.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 0.85rem; font-weight: 500; color: var(--pale); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 0.72rem; color: var(--pacific); text-transform: capitalize; }
.logout-btn { background: none; border: none; color: rgba(202,233,255,0.45); cursor: pointer; font-size: 1rem; padding: 4px; border-radius: 6px; transition: color 0.2s; }
.logout-btn:hover { color: var(--danger); }

.main-content { margin-left: 260px; flex: 1; padding: 32px; min-height: 100vh; background: var(--cream); }
.page-header { margin-bottom: 28px; }
.page-header h2 { font-size: 1.75rem; color: var(--yale); }
.page-header p { color: #4a7a96; font-size: 0.93rem; margin-top: 4px; }

.card { background: var(--foam); border-radius: 16px; padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.card-title { font-family: 'DM Sans', sans-serif; font-size: 1.1rem; color: var(--yale); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { background: var(--foam); border-radius: 16px; padding: 22px 24px; border: 1px solid var(--border); box-shadow: var(--shadow); position: relative; overflow: hidden; border-top: 3px solid var(--pacific); }
.stat-card::after { content: attr(data-icon); position: absolute; right: 16px; top: 16px; font-size: 2rem; opacity: 0.10; }
.stat-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: #4a7a96; margin-bottom: 8px; }
.stat-value { font-family: 'DM Sans', sans-serif; font-size: 1.9rem; color: var(--yale); font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-value.green { color: var(--success); }
.stat-value.amber { color: var(--warning); }
.stat-value.red { color: var(--danger); }
.stat-sub { font-size: 0.78rem; color: #4a7a96; margin-top: 4px; }

.table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
thead { background: var(--pale); }
th { padding: 12px 16px; text-align: left; font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--yale); border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 12px 16px; border-bottom: 1px solid rgba(98,182,203,0.08); color: var(--espresso); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--steam); }

.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge-green { background: #e0f5ee; color: var(--success); }
.badge-amber { background: #fff8e0; color: var(--warning); }
.badge-red { background: #fdecea; color: var(--danger); }
.badge-blue { background: var(--pale); color: var(--yale); }
.badge-gray { background: #eaf4f8; color: #4a7a96; }

.btn { display: inline-flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 10px; font-family: 'DM Sans', sans-serif; font-size: 0.9rem; font-weight: 500; cursor: pointer; border: none; transition: all 0.18s; }
.btn-primary { background: var(--yale); color: white; box-shadow: 0 2px 8px rgba(27,73,101,0.25); }
.btn-primary:hover { background: #143a52; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(27,73,101,0.35); }
.btn-secondary { background: var(--pale); color: var(--yale); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--frozen); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #a93226; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #155f49; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: 8px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 0.83rem; font-weight: 600; color: #2a5a78; margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 10px; font-family: 'DM Sans', sans-serif; font-size: 0.9rem; color: var(--espresso); background: var(--foam); transition: border-color 0.18s, box-shadow 0.18s; outline: none; }
.form-control:focus { border-color: var(--pacific); box-shadow: 0 0 0 3px rgba(98,182,203,0.15); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

.modal-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(13,45,63,0.60); display: flex; align-items: center; justify-content: center; padding: 20px; animation: fadeIn 0.18s ease; }
.modal { background: var(--foam); border-radius: 20px; width: 100%; max-width: 560px; box-shadow: var(--shadow-lg); max-height: 90vh; overflow-y: auto; animation: slideUp 0.22s ease; border-top: 4px solid var(--pacific); }
/* WIDENED modal-lg for complex forms like Receive Invoice */
.modal-lg { max-width: 960px; }
.modal-header { padding: 24px 28px 0; display: flex; align-items: flex-start; justify-content: space-between; }
.modal-header h3 { font-size: 1.3rem; color: var(--yale); }
.modal-close { background: none; border: none; font-size: 1.4rem; color: #4a7a96; cursor: pointer; padding: 4px; border-radius: 6px; line-height:1; }
.modal-close:hover { color: var(--danger); }
.modal-body { padding: 20px 28px; }
.modal-footer { padding: 0 28px 24px; display: flex; gap: 10px; justify-content: flex-end; }

@keyframes fadeIn { from { opacity:0 } to { opacity:1 } }
@keyframes slideUp { from { opacity:0; transform:translateY(24px) } to { opacity:1; transform:translateY(0) } }

.alert { padding: 12px 16px; border-radius: 10px; font-size: 0.88rem; margin-bottom: 16px; display: flex; align-items: flex-start; gap: 10px; }
.alert-success { background: #e0f5ee; border: 1px solid #a8ddc8; color: var(--success); }
.alert-danger { background: #fdecea; border: 1px solid #f5c6c6; color: var(--danger); }
.alert-warning { background: #fffaec; border: 1px solid #ffe082; color: var(--warning); }
.alert-info { background: var(--pale); border: 1px solid var(--frozen); color: var(--yale); }

.order-item-row { display: grid; grid-template-columns: 1fr 80px 100px 36px; gap: 10px; align-items: center; margin-bottom: 10px; }
.order-total-bar { background: var(--pale); border-radius: 12px; padding: 16px 20px; margin-top: 16px; display: flex; justify-content: space-between; align-items: center; }
.order-total-label { font-size: 0.9rem; color: #4a7a96; font-weight: 500; }
.order-total-amount { font-family: 'DM Sans', sans-serif; font-size: 1.5rem; color: var(--yale); font-weight: 700; }

.ingredient-row { display: grid; grid-template-columns: 1fr 90px 90px 36px; gap: 10px; align-items: center; margin-bottom: 8px; }

.stock-low { color: var(--danger); font-weight: 600; }
.stock-ok { color: var(--success); }
.stock-warning { color: var(--warning); }

.activity-item { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid rgba(98,182,203,0.10); }
.activity-item:last-child { border-bottom: none; }
.activity-dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 5px; flex-shrink: 0; }
.activity-content { flex: 1; }
.activity-text { font-size: 0.88rem; color: var(--espresso); }
.activity-time { font-size: 0.75rem; color: #4a7a96; margin-top: 2px; }

.tabs { display: flex; gap: 4px; background: var(--pale); padding: 4px; border-radius: 12px; margin-bottom: 24px; }
.tab { padding: 9px 18px; border-radius: 9px; font-size: 0.88rem; font-weight: 500; cursor: pointer; transition: all 0.18s; color: #4a7a96; border: none; background: none; font-family: 'DM Sans', sans-serif; }
.tab.active { background: var(--foam); color: var(--yale); box-shadow: 0 2px 8px rgba(27,73,101,0.10); font-weight: 600; }
.tab:hover:not(.active) { color: var(--yale); }

.price-history-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--pale); border-radius: 10px; margin-bottom: 8px; }

.count-row { display: grid; grid-template-columns: 1fr 100px 100px 100px 100px; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid rgba(98,182,203,0.10); }
.variance-positive { color: var(--success); font-weight: 600; }
.variance-negative { color: var(--danger); font-weight: 600; }

@media (max-width: 768px) { .sidebar { width: 220px; } .main-content { margin-left: 220px; padding: 20px; } .stats-grid { grid-template-columns: 1fr 1fr; } .form-row { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.25s ease; width: 260px; }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 16px; }
  .sidebar-overlay { display: block; }
  .hamburger { display: flex; }
  .stats-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr !important; }
  .modal-lg { max-width: 100% !important; }
  .form-row { grid-template-columns: 1fr; }
  .page-header.flex-between { flex-direction: column; align-items: flex-start; gap: 12px; }
}
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(13,45,63,0.55); z-index: 99; }
.hamburger { display: none; position: fixed; top: 14px; left: 14px; z-index: 200; background: var(--yale); border: none; border-radius: 10px; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; box-shadow: 0 2px 12px rgba(27,73,101,0.3); }
.hamburger span { display: block; width: 20px; height: 2px; background: white; border-radius: 2px; transition: all 0.2s; }
@media (max-width: 600px) { .main-content { padding-top: 68px; } }

.loading-overlay { position:fixed; inset:0; background:rgba(240,248,255,0.90); z-index:2000; display:flex; align-items:center; justify-content:center; flex-direction:column; gap:16px; }
.spinner { width:40px; height:40px; border:4px solid var(--border); border-top-color: var(--pacific); border-radius:50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { font-family:'DM Sans',sans-serif; color:var(--yale); font-size:1.1rem; }

.toast-container { position:fixed; bottom:24px; right:24px; z-index:3000; display:flex; flex-direction:column; gap:10px; }
.toast { padding:14px 18px; border-radius:12px; box-shadow:var(--shadow-lg); font-size:0.9rem; min-width:280px; display:flex; align-items:center; gap:10px; animation: slideUp 0.22s ease; }
.toast-success { background:var(--success); color:white; }
.toast-error { background:var(--danger); color:white; }
.toast-info { background:var(--yale); color:white; }

.divider { height:1px; background:var(--border); margin: 20px 0; }
.text-muted { color: #4a7a96; font-size:0.85rem; }
.text-right { text-align:right; }
.flex { display:flex; }
.flex-between { display:flex; justify-content:space-between; align-items:center; }
.flex-center { display:flex; align-items:center; }
.gap-2 { gap:8px; }
.gap-3 { gap:12px; }
.mb-4 { margin-bottom:16px; }
.mb-6 { margin-bottom:24px; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.grid-3 { display:grid; grid-template-columns:1fr 1fr 1fr; gap:16px; }
.full-width { grid-column: 1 / -1; }
.empty-state { text-align:center; padding:48px 24px; color:#4a7a96; }
.empty-state .empty-icon { font-size:3rem; margin-bottom:12px; opacity:0.5; }
.empty-state p { font-size:0.93rem; }