/* =====================================================
   RESET & BASE STYLES
   ===================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Layout Variables */
    --sidebar-width: 195px;
    --sidebar-width-collapsed: 52px;
    --header-height: 48px;

    /* Modern Primary Colors - Vibrant Blue/Purple Gradient */
    --primary-900: #1e1b4b;
    --primary-800: #312e81;
    --primary-700: #4338ca;
    --primary-600: #4f46e5;
    --primary-500: #6366f1;
    --primary-400: #818cf8;
    --primary-300: #a5b4fc;
    --primary-200: #c7d2fe;
    --primary-100: #e0e7ff;
    --primary-50: #eef2ff;

    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;

    --secondary-50: #f0fdf4;
    --secondary-100: #dcfce7;
    --secondary-200: #bbf7d0;
    --secondary-300: #86efac;
    --secondary-400: #4ade80;
    --secondary-500: #22c55e;
    --secondary-600: #16a34a;
    --secondary-700: #15803d;
    --secondary-800: #166534;
    --secondary-900: #14532d;

    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-display: 'Outfit', var(--font-sans);

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Spacing - Modern Scale */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;

    /* Z-Index - Organized */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-600), var(--primary-500));

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;

    /* Transitions - Smooth */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

/* =====================================================
   LOGIN PAGE STYLES
   ===================================================== */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #006994 0%, #0EA5E9 50%, #38BDF8 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.login-page::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

.login-container {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl), 0 0 60px rgba(99, 102, 241, 0.3);
    padding: 3rem 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-header h1 {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: var(--gray-600);
    font-size: var(--text-base);
    font-weight: 500;
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: var(--text-sm);
    color: var(--gray-600);
}

/* =====================================================
   DASHBOARD LAYOUT
   ===================================================== */

.dashboard {
    display: flex;
    min-height: 100vh;
    background: var(--gray-50);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background: white;
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-fixed);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base);
    box-shadow: var(--shadow-sm);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
}

.sidebar-header {
    padding: 1.2rem 1.5rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
    color: white;
    position: sticky;
    top: 0;
    z-index: 10;
    min-height: 81px;
}

.sidebar.collapsed .sidebar-header {
    min-height: 81px;
}

.sidebar-header h2 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 800;
    letter-spacing: -0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 0;
    overflow-x: hidden;
    /* Hide horizontal overflow during transition */
}

/* Collapsed Sidebar Styles */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-width-collapsed);
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-width-collapsed);
}

body.sidebar-collapsed .sidebar-header h2 {
    display: none;
}

body.sidebar-collapsed .sidebar-header {
    padding: 1rem 1rem 1.5rem;
    display: flex;
    justify-content: center;
    min-height: 65px;
}

body.sidebar-collapsed .nav-section-title {
    display: none;
}

body.sidebar-collapsed .nav-link span:last-child {
    display: none;
}

body.sidebar-collapsed .nav-icon {
    margin-right: 0;
    transform: none;
    /* Reset transform on hover for collapsed state if needed, or keep it */
}

body.sidebar-collapsed .nav-link {
    justify-content: center;
    padding: 0.875rem 0;
}

body.sidebar-collapsed .nav-link:hover {
    transform: none;
    /* Disable translation effect on collapsed */
}

/* Tooltip on hover for collapsed items could be added here later */

.nav-section {
    margin-bottom: 2rem;
}

.nav-section-title {
    padding: 0.5rem 1.5rem;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 500;
    font-size: var(--text-sm);
    position: relative;
    border-left: 3px solid transparent;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    border-radius: 0 4px 4px 0;
}

.nav-link:hover {
    background: rgba(99, 102, 241, 0.05);
    color: var(--primary-700);
    transform: translateX(4px);
}

.nav-link:hover::before {
    width: 4px;
}

.nav-link.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.1) 0%, rgba(99, 102, 241, 0.05) 100%);
    color: var(--primary-700);
    font-weight: 600;
    border-left-color: var(--primary-600);
}

.nav-link.active::before {
    width: 4px;
}

.nav-icon {
    margin-right: 1rem;
    font-size: var(--text-lg);
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
    color: inherit;
}

.nav-icon i {
    font-size: 1.1rem;
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    background-color: var(--gray-50);
    min-height: 100vh;
}

.top-bar {
    background: linear-gradient(to bottom, #ffffff, #fafafa);
    padding: 1.25rem 2rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    border-bottom: 1px solid var(--gray-200);
}

.page-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info {
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-avatar:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.user-tooltip {
    position: absolute;
    bottom: -80px;
    right: 0;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    padding: 0.75rem 1rem;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    z-index: 1000;
    border: 1px solid var(--gray-200);
}

.user-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 12px;
    width: 12px;
    height: 12px;
    background: white;
    border-left: 1px solid var(--gray-200);
    border-top: 1px solid var(--gray-200);
    transform: rotate(45deg);
}

.user-info:hover .user-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-tooltip-name {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.user-tooltip-role {
    font-size: 0.85rem;
    color: var(--gray-600);
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background: var(--primary-50);
    color: var(--primary-700);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.btn-icon-logout {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    border: none;
    color: var(--gray-600);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.btn-icon-logout:hover {
    background: var(--danger-light);
    color: var(--danger);
    transform: scale(1.05);
}

.content-area {
    padding: 2rem;
    position: relative;
    /* Needed for content-area-scoped loading overlay */
}

/* =====================================================
   UTILITY CLASSES
   ===================================================== */

/* Generic Content Padding for SPA Views */
.app-content-padding {
    padding: 2rem;
}

@media (max-width: 576px) {
    .app-content-padding {
        padding: 1rem;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.card-header {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-300);
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* Grid System */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-cols-5 {
    grid-template-columns: repeat(5, 1fr);
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Spacing */
.mb-1 {
    margin-bottom: var(--spacing-1);
}

.mb-2 {
    margin-bottom: var(--spacing-2);
}

.mb-3 {
    margin-bottom: var(--spacing-3);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-6 {
    margin-bottom: var(--spacing-6);
}

.mt-1 {
    margin-top: var(--spacing-1);
}

.mt-2 {
    margin-top: var(--spacing-2);
}

.mt-3 {
    margin-top: var(--spacing-3);
}

.mt-4 {
    margin-top: var(--spacing-4);
}

/* Text Utilities */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--gray-600);
}

.text-primary {
    color: var(--primary-600);
}

.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

.text-danger {
    color: var(--danger);
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Error Message */
.error-message {
    padding: 0.75rem 1rem;
    background-color: #fee;
    color: var(--danger);
    border: 1px solid #fcc;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    font-size: 0.9rem;
}

.success-message {
    padding: 0.75rem 1rem;
    background-color: #efe;
    color: var(--success);
    border: 1px solid #cfc;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    font-size: 0.9rem;
}

/* Responsive */
/* Responsive */
@media (max-width: 1200px) {
    .grid-cols-5 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-width);
    }

    .main-content {
        margin-left: var(--sidebar-width);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4,
    .grid-cols-5 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .main-content {
        margin-left: 0;
    }

    .top-bar {
        padding: 1rem;
    }

    .content-area {
        padding: 1rem;
    }
}

/* =====================================================
   PRINT/RECEIPT STYLES
   ===================================================== */
/* 
@media print {
    /* CONFLICTING STYLES COMMENTED OUT TO USE POS-PRINTER.JS */


*/

/* Hide receipt on screen */
#receipt-preview {
    display: none;
}

@media print {
    #receipt-preview {
        display: block;
    }
}

/* =====================================================
   PAGE HEADER COMPONENT
   ===================================================== */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.page-header h2 {
    margin: 0;
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--gray-900);
}

.page-header p {
    margin: 0.25rem 0 0 0;
    color: var(--gray-600);
    font-size: var(--text-sm);
}