/**
 * SpectsVista ERP - Main Stylesheet
 * A modern, professional optical shop management system
 */

/* ============================================
   CSS Variables & Theme
   ============================================ */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --primary-bg: rgba(79, 70, 229, 0.1);
    --secondary: #64748b;
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --sidebar-width: 260px;
    --sidebar-bg: #1e293b;
    --sidebar-text: #94a3b8;
    --header-height: 64px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition-speed: 0.2s;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-100);
    overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition-speed); }
a:hover { color: var(--primary-dark); }

/* Layout */
.wrapper { display: flex; min-height: 100vh; }
.main-content { flex: 1; margin-left: var(--sidebar-width); display: flex; flex-direction: column; min-height: 100vh; transition: margin-left var(--transition-speed); }
.content-wrapper { flex: 1; padding: 0; }

/* Sidebar */
.sidebar { position: fixed; left: 0; top: 0; width: var(--sidebar-width); height: 100vh; background: var(--sidebar-bg); z-index: 1040; display: flex; flex-direction: column; transition: width var(--transition-speed), transform var(--transition-speed); overflow: hidden; }
.sidebar-brand { padding: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.sidebar-brand .brand-icon { width: 40px; height: 40px; background: var(--primary); border-radius: var(--border-radius); display: flex; align-items: center; justify-content: center; color: white; font-size: 20px; }
.sidebar-brand .brand-name { color: white; font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 18px; }
.sidebar-brand .brand-tagline { color: var(--sidebar-text); font-size: 11px; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 15px 0; }
.sidebar-nav::-webkit-scrollbar { width: 5px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 5px; }
.sidebar-nav .nav-section { padding: 15px 20px 8px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gray-500); }
.sidebar-nav .nav-link { display: flex; align-items: center; padding: 12px 20px; color: var(--sidebar-text); font-size: 14px; font-weight: 500; transition: all var(--transition-speed); border-left: 3px solid transparent; }
.sidebar-nav .nav-link i { width: 22px; font-size: 18px; margin-right: 12px; }
.sidebar-nav .nav-link:hover { background: rgba(255, 255, 255, 0.05); color: white; }
.sidebar-nav .nav-link.active { background: rgba(255, 255, 255, 0.05); color: white; border-left-color: var(--primary); }
.sidebar-nav .nav-link .badge { font-size: 10px; padding: 4px 8px; }
.sidebar-footer { border-top: 1px solid rgba(255, 255, 255, 0.1); }
.sidebar-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.5); z-index: 1035; }

/* Navbar */
.navbar { height: var(--header-height); padding: 0 20px; box-shadow: var(--shadow-sm); }
.navbar .form-control { border-radius: 20px; }
.sidebar-toggle { padding: 0; color: var(--gray-600); }

/* Page Header */
.page-header { padding: 20px 24px; background: white; border-bottom: 1px solid var(--gray-200); }
.page-title { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 20px; color: var(--gray-800); margin: 0; }
.breadcrumb { font-size: 13px; }
.breadcrumb-item a { color: var(--gray-500); }
.breadcrumb-item.active { color: var(--gray-700); }

/* Cards */
.card { border: none; border-radius: var(--border-radius-lg); box-shadow: var(--shadow); margin-bottom: 24px; }
.card-header { background: white; border-bottom: 1px solid var(--gray-200); padding: 16px 20px; font-weight: 600; border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0; }
.card-body { padding: 20px; }
.card-footer { background: var(--gray-50); border-top: 1px solid var(--gray-200); padding: 12px 20px; }

/* Stats Cards */
.stats-card { background: white; border-radius: var(--border-radius-lg); padding: 20px; display: flex; align-items: center; box-shadow: var(--shadow); transition: transform var(--transition-speed), box-shadow var(--transition-speed); }
.stats-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stats-card .stats-icon { width: 56px; height: 56px; border-radius: var(--border-radius); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-right: 16px; }
.stats-card .stats-icon.bg-primary { background: var(--primary-bg); color: var(--primary); }
.stats-card .stats-icon.bg-success { background: var(--success-bg); color: var(--success); }
.stats-card .stats-icon.bg-warning { background: var(--warning-bg); color: var(--warning); }
.stats-card .stats-icon.bg-danger { background: var(--danger-bg); color: var(--danger); }
.stats-card .stats-icon.bg-info { background: var(--info-bg); color: var(--info); }
.stats-card .stats-value { font-family: 'Poppins', sans-serif; font-size: 24px; font-weight: 700; color: var(--gray-800); line-height: 1.2; }
.stats-card .stats-label { font-size: 13px; color: var(--gray-500); margin-top: 4px; }
.stats-card .stats-change { font-size: 12px; font-weight: 500; margin-top: 6px; }
.stats-card .stats-change.positive { color: var(--success); }
.stats-card .stats-change.negative { color: var(--danger); }

/* Tables */
.table { margin-bottom: 0; }
.table thead th { background: var(--gray-50); border-bottom: 2px solid var(--gray-200); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--gray-600); padding: 12px 16px; white-space: nowrap; }
.table tbody td { padding: 14px 16px; vertical-align: middle; border-bottom: 1px solid var(--gray-100); }
.table tbody tr:hover { background: var(--gray-50); }
.table-action-btns { display: flex; gap: 4px; }
.table-action-btns .btn { padding: 4px 8px; font-size: 13px; }

/* Forms */
.form-label { font-weight: 500; font-size: 13px; color: var(--gray-700); margin-bottom: 6px; }
.form-control, .form-select { border-radius: var(--border-radius); border: 1px solid var(--gray-300); padding: 10px 14px; font-size: 14px; transition: border-color var(--transition-speed), box-shadow var(--transition-speed); }
.form-control:focus, .form-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
.form-control.is-invalid, .form-select.is-invalid { border-color: var(--danger); }
.input-group-text { background: var(--gray-50); border: 1px solid var(--gray-300); border-radius: var(--border-radius); }
.rx-form .form-control { text-align: center; font-family: 'Monaco', 'Consolas', monospace; }
.rx-form .eye-label { font-weight: 600; color: var(--primary); }

/* Buttons */
.btn { border-radius: var(--border-radius); font-weight: 500; font-size: 14px; padding: 10px 18px; transition: all var(--transition-speed); }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline-primary { color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover { background: var(--primary); border-color: var(--primary); }
.btn-success { background: var(--success); border-color: var(--success); }
.btn-warning { background: var(--warning); border-color: var(--warning); color: white; }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-light { background: white; border: 1px solid var(--gray-300); color: var(--gray-700); }
.btn-light:hover { background: var(--gray-50); border-color: var(--gray-400); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { width: 38px; height: 38px; padding: 0; display: inline-flex; align-items: center; justify-content: center; }
.btn-icon.btn-sm { width: 32px; height: 32px; }

/* Badges */
.badge { font-weight: 500; padding: 5px 10px; border-radius: 20px; }
.badge-status { padding: 6px 12px; font-size: 12px; }
.badge-status.pending { background: var(--warning-bg); color: var(--warning); }
.badge-status.processing { background: var(--info-bg); color: var(--info); }
.badge-status.ready { background: var(--primary-bg); color: var(--primary); }
.badge-status.delivered { background: var(--success-bg); color: var(--success); }
.badge-status.cancelled { background: var(--danger-bg); color: var(--danger); }
.badge-tier { padding: 6px 14px; font-weight: 600; border-radius: 20px; }
.badge-tier.bronze { background: linear-gradient(135deg, #cd7f32, #b8860b); color: white; }
.badge-tier.silver { background: linear-gradient(135deg, #c0c0c0, #a8a8a8); color: white; }
.badge-tier.gold { background: linear-gradient(135deg, #ffd700, #daa520); color: white; }
.badge-tier.platinum { background: linear-gradient(135deg, #e5e4e2, #c0c0c0); color: #333; }

/* Alerts */
.alert { border: none; border-radius: var(--border-radius); padding: 14px 20px; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-warning { background: var(--warning-bg); color: #92400e; }
.alert-danger { background: var(--danger-bg); color: var(--danger); }
.alert-info { background: var(--info-bg); color: var(--info); }

/* Modals */
.modal-content { border: none; border-radius: var(--border-radius-lg); box-shadow: var(--shadow-lg); }
.modal-header { border-bottom: 1px solid var(--gray-200); padding: 16px 24px; }
.modal-title { font-weight: 600; font-size: 18px; }
.modal-body { padding: 24px; }
.modal-footer { border-top: 1px solid var(--gray-200); padding: 16px 24px; }

/* Customer Card */
.customer-card { background: white; border-radius: var(--border-radius-lg); padding: 20px; display: flex; align-items: center; gap: 16px; box-shadow: var(--shadow); transition: all var(--transition-speed); }
.customer-card:hover { box-shadow: var(--shadow-md); }
.customer-avatar { width: 56px; height: 56px; border-radius: 50%; background: var(--primary-bg); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 600; }
.customer-info h6 { font-weight: 600; margin-bottom: 4px; color: var(--gray-800); }
.customer-info p { font-size: 13px; color: var(--gray-500); margin-bottom: 0; }

/* Invoice Preview */
.invoice-preview { background: white; border-radius: var(--border-radius-lg); box-shadow: var(--shadow); padding: 40px; max-width: 800px; margin: 0 auto; }
.invoice-header { display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 2px solid var(--gray-200); padding-bottom: 20px; margin-bottom: 30px; }
.invoice-logo { max-height: 60px; }
.invoice-title { font-family: 'Poppins', sans-serif; font-size: 28px; font-weight: 700; color: var(--gray-800); }
.invoice-table th { background: var(--gray-50); }
.invoice-total { font-size: 20px; font-weight: 700; color: var(--primary); }

/* Lens Suggestion */
.lens-suggestion { background: linear-gradient(135deg, var(--primary-bg), var(--info-bg)); border-radius: var(--border-radius-lg); padding: 24px; border-left: 4px solid var(--primary); }
.lens-suggestion-header { display: flex; align-items: center; margin-bottom: 16px; }
.lens-suggestion-header i { font-size: 24px; color: var(--primary); margin-right: 12px; }
.lens-suggestion-title { font-weight: 600; font-size: 16px; color: var(--gray-800); }
.lens-recommendation { background: white; border-radius: var(--border-radius); padding: 16px; margin-bottom: 12px; }
.lens-recommendation .badge { margin-right: 8px; margin-bottom: 8px; }

/* Footer */
.footer { background: white; border-top: 1px solid var(--gray-200); font-size: 13px; }

/* Loading Overlay */
.loading-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(255, 255, 255, 0.8); z-index: 9999; align-items: center; justify-content: center; }
.loading-overlay.active { display: flex; }

/* Utilities */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--gray-500) !important; }
.bg-primary-light { background: var(--primary-bg) !important; }
.bg-success-light { background: var(--success-bg) !important; }
.bg-warning-light { background: var(--warning-bg) !important; }
.bg-danger-light { background: var(--danger-bg) !important; }
.border-dashed { border-style: dashed !important; }
.cursor-pointer { cursor: pointer; }
.hover-shadow:hover { box-shadow: var(--shadow-md); }

/* Print */
@media print {
    .sidebar, .navbar, .page-header, .footer, .no-print { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
}

/* Responsive */
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .sidebar-overlay.show { display: block; }
    .main-content { margin-left: 0; }
}

@media (max-width: 767.98px) {
    .page-header { padding: 15px; }
    .page-title { font-size: 18px; }
    .content-wrapper { padding: 0; }
    .card-body { padding: 15px; }
    .stats-card { padding: 15px; }
    .stats-card .stats-value { font-size: 20px; }
}

/* Login Page */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); }
.login-card { background: white; border-radius: var(--border-radius-lg); box-shadow: var(--shadow-lg); width: 100%; max-width: 420px; padding: 40px; }
.login-logo { text-align: center; margin-bottom: 30px; }
.login-logo .brand-icon { width: 64px; height: 64px; background: var(--primary); border-radius: var(--border-radius); display: inline-flex; align-items: center; justify-content: center; color: white; font-size: 28px; margin-bottom: 16px; }
.login-logo h1 { font-family: 'Poppins', sans-serif; font-size: 24px; font-weight: 600; color: var(--gray-800); margin-bottom: 4px; }
.login-logo p { color: var(--gray-500); font-size: 14px; }

/* Select2 */
.select2-container--bootstrap-5 .select2-selection { border-radius: var(--border-radius); border: 1px solid var(--gray-300); min-height: 42px; }
.select2-container--bootstrap-5 .select2-selection--single .select2-selection__rendered { padding: 6px 14px; }
.select2-container--bootstrap-5.select2-container--focus .select2-selection, .select2-container--bootstrap-5.select2-container--open .select2-selection { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.animate-fade-in { animation: fadeIn 0.3s ease; }
.animate-slide-up { animation: slideInUp 0.3s ease; }
.animate-pulse { animation: pulse 2s infinite; }