/* =====================================================
   MAIN STYLES - Core Layout & Variables
   ===================================================== */

:root {
    /* Color System */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    --success-50: #f0fdf4;
    --success-500: #22c55e;
    --success-600: #16a34a;
    --success-700: #15803d;

    --warning-50: #fffbeb;
    --warning-500: #f59e0b;
    --warning-600: #d97706;

    --danger-50: #fef2f2;
    --danger-500: #ef4444;
    --danger-600: #dc2626;

    --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;

    /* Semantic Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #9ca3af;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Status Colors */
    --status-submitted: #8b5cf6;
    --status-received-cn: #06b6d4;
    --status-in-production: #f59e0b;
    --status-completed-cn: #10b981;
    --status-batched: #fa18d8;
    --status-in-transit-global: #7124ff;
    --status-received-fr: #0dabef;
    --status-dispatched: #ffa3b9;
    --status-delivered: #00ff5e;
    --status-accepted: #004d34;
    --status-action-required-local: #ff0000;
    --status-action-required-prod: #ff0000;
    --status-action-required-dentist: #ff0000;

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

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* 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);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 72px;
    --header-height: 64px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-tertiary: #6b7280;
    --border-color: #374151;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.tooth-icon {
    width: 64px;
    height: 64px;
    color: var(--primary-500);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

.loader span {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-normal);
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: var(--header-height);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-logo svg {
    width: 36px;
    height: 36px;
    color: var(--primary-500);
    flex-shrink: 0;
}

.sidebar-logo span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    white-space: nowrap;
    opacity: 1;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .sidebar-logo span {
    opacity: 0;
    width: 0;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4) var(--space-3);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-6);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-2) var(--space-3);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar.collapsed .nav-section-title {
    text-align: center;
    padding: var(--space-2) 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative; 
    margin-bottom: var(--space-1);
    white-space: nowrap;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary-600);
}

[data-theme="dark"] .nav-item.active {
    background: rgba(59, 130, 246, 0.1);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item-text {
    flex: 1;
    overflow: hidden;
}

.sidebar.collapsed .nav-item-text {
    display: none;
}

.nav-badge {
    background: var(--primary-500);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
}

.sidebar.collapsed .nav-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 2px 4px;
    font-size: 10px;
    min-width: 16px;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    position: relative;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--border-color);
}

.sidebar-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.sidebar-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-normal);
}

.sidebar.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

.sidebar.collapsed .sidebar-toggle span {
    display: none;
}

.sidebar-badge {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%); /* Vertically center */
                
    border-radius: 999px; /* Pill shape */
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    min-width: 20px;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    z-index: 10;
}

.sidebar.collapsed .sidebar-badge {
    top: 4px;
    right: 4px;
    transform: none; /* Remove vertical centering */
    padding: 2px 5px;
    font-size: 0.6rem;
    min-width: 16px;
    border: 1px solid white; /* Adds a tiny border to separate from icon */
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-collapsed-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-normal);
}

.sidebar:not(.collapsed) ~ .main-content {
    margin-left: var(--sidebar-width);
}

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-6);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-sidebar-toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 6px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-primary);
}

.header-sidebar-toggle:hover {
  background: var(--bg-secondary);
}

@media (max-width: 1024px) {
  .header-sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}
.header-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.header-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.header-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.header-breadcrumb a:hover {
    color: var(--primary-500);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-search {
    position: relative;
}

.header-search input {
    width: 280px;
    padding: var(--space-2) var(--space-4) var(--space-2) var(--space-10);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.header-search input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px var(--primary-100);
}

.header-search svg {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-tertiary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.header-action-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
}

.header-action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.header-action-btn svg {
    width: 20px;
    height: 20px;
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--danger-500);
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-menu:hover {
    background: var(--bg-tertiary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-500);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* Page Content */
.page-content {
    flex: 1;
    padding: var(--space-6);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.collapsed {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar:not(.collapsed) ~ .main-content {
        margin-left: 0;
    }
    
    .header-search input {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .header-search {
        display: none;
    }
    
    .user-info {
        display: none;
    }
    
    .page-content {
        padding: var(--space-4);
    }
}