/* ============================================================================
   ZANDER BY 64 WEST - SHARED DESIGN SYSTEM
   Complete CSS Framework for All Prototype Pages
   ============================================================================ */

/* ----------------------------------------------------------------------------
   1. CSS VARIABLES (Design Tokens)
   ---------------------------------------------------------------------------- */
:root {
    /* Primary Brand Colors (Hamilton/64 West Story) */
    --zander-red: #BF0A30;
    --zander-navy: #0C2340;
    --zander-gold: #F0B323;
    
    /* Neutrals */
    --zander-white: #FFFFFF;
    --zander-off-white: #F8F9FA;
    --zander-light-gray: #E9ECEF;
    --zander-border-gray: #DEE2E6;
    --zander-gray: #6C757D;
    --zander-dark-gray: #343A40;
    --zander-black: #212529;
    
    /* Module Accent Colors */
    --cro-accent: #E74C3C;        /* Revenue - Red/Orange */
    --cfo-accent: #27AE60;        /* Finance - Green */
    --coo-accent: #3498DB;        /* Operations - Blue */
    --cmo-accent: #9B59B6;        /* Marketing - Purple */
    --cpo-accent: #E67E22;        /* People - Orange */
    --cio-accent: #1ABC9C;        /* Innovation - Teal */
    --ea-accent: #34495E;         /* Assistant - Dark Blue */
    
    /* Semantic Colors */
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --info: #17A2B8;
    
    /* Typography */
    --font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 2rem;        /* 32px */
    --font-size-4xl: 2.5rem;      /* 40px */
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;        /* 4px */
    --spacing-sm: 0.5rem;         /* 8px */
    --spacing-md: 1rem;           /* 16px */
    --spacing-lg: 1.5rem;         /* 24px */
    --spacing-xl: 2rem;           /* 32px */
    --spacing-2xl: 3rem;          /* 48px */
    --spacing-3xl: 4rem;          /* 64px */
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ----------------------------------------------------------------------------
   2. RESET & BASE STYLES
   ---------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--zander-dark-gray);
    background-color: var(--zander-off-white);
}

/* ----------------------------------------------------------------------------
   3. TYPOGRAPHY
   ---------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    color: var(--zander-navy);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

a {
    color: var(--zander-red);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--zander-navy);
}

strong, b {
    font-weight: 600;
}

small {
    font-size: var(--font-size-sm);
    color: var(--zander-gray);
}

/* ----------------------------------------------------------------------------
   4. LAYOUT COMPONENTS
   ---------------------------------------------------------------------------- */

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-md);
}

.col-2 { flex: 0 0 16.666%; max-width: 16.666%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Flexbox Utilities */
.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.justify-content-start { justify-content: flex-start; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }
.justify-content-between { justify-content: space-between; }
.align-items-start { align-items: flex-start; }
.align-items-center { align-items: center; }
.align-items-end { align-items: flex-end; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* ----------------------------------------------------------------------------
   5. NAVIGATION
   ---------------------------------------------------------------------------- */

/* Top Navigation Bar */
.navbar {
    background: var(--zander-white);
    border-bottom: 1px solid var(--zander-border-gray);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--zander-navy);
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--zander-red);
}

.navbar-logo {
    font-size: var(--font-size-2xl);
    color: var(--zander-red);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.navbar-link {
    color: var(--zander-dark-gray);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-link:hover {
    color: var(--zander-red);
    background: var(--zander-off-white);
}

.navbar-link.active {
    color: var(--zander-red);
    background: var(--zander-off-white);
}

/* Sidebar Navigation */
.sidebar {
    width: 240px;
    background: var(--zander-white);
    border-right: 1px solid var(--zander-border-gray);
    height: calc(100vh - 60px);
    position: fixed;
    left: 0;
    top: 60px;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--zander-gray);
    margin-bottom: var(--spacing-md);
}

.sidebar-menu {
    list-style: none;
}

.sidebar-item {
    margin-bottom: var(--spacing-xs);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--zander-dark-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.sidebar-link:hover {
    background: var(--zander-off-white);
    color: var(--zander-red);
}

.sidebar-link.active {
    background: var(--zander-red);
    color: var(--zander-white);
}

.sidebar-icon {
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

/* Module Switcher */
.module-switcher {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--zander-off-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.module-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid transparent;
    background: var(--zander-white);
    color: var(--zander-dark-gray);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

.module-btn:hover {
    border-color: var(--zander-border-gray);
}

.module-btn.active {
    background: var(--zander-red);
    color: var(--zander-white);
    border-color: var(--zander-red);
}

.module-btn.cro { border-color: var(--cro-accent); }
.module-btn.cfo { border-color: var(--cfo-accent); }
.module-btn.coo { border-color: var(--coo-accent); }

/* ----------------------------------------------------------------------------
   6. BUTTONS
   ---------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button Variants */
.btn-primary {
    background: var(--zander-red);
    color: var(--zander-white);
    border-color: var(--zander-red);
}

.btn-primary:hover:not(:disabled) {
    background: #A00A28;
    border-color: #A00A28;
}

.btn-secondary {
    background: var(--zander-navy);
    color: var(--zander-white);
    border-color: var(--zander-navy);
}

.btn-secondary:hover:not(:disabled) {
    background: #0A1A30;
    border-color: #0A1A30;
}

.btn-outline {
    background: transparent;
    color: var(--zander-red);
    border-color: var(--zander-red);
}

.btn-outline:hover:not(:disabled) {
    background: var(--zander-red);
    color: var(--zander-white);
}

.btn-ghost {
    background: transparent;
    color: var(--zander-dark-gray);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background: var(--zander-off-white);
}

.btn-success {
    background: var(--success);
    color: var(--zander-white);
    border-color: var(--success);
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

/* ----------------------------------------------------------------------------
   7. CARDS
   ---------------------------------------------------------------------------- */
.card {
    background: var(--zander-white);
    border: 1px solid var(--zander-border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--zander-border-gray);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--zander-navy);
    margin: 0;
}

.card-body {
    /* Content area */
}

.card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--zander-border-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Stat Cards */
.stat-card {
    background: linear-gradient(135deg, var(--zander-off-white) 0%, var(--zander-white) 100%);
    border-left: 4px solid var(--zander-red);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--zander-navy);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--zander-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-change {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.stat-change.positive {
    color: var(--success);
}

.stat-change.negative {
    color: var(--danger);
}

/* ----------------------------------------------------------------------------
   8. FORMS
   ---------------------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--zander-navy);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--zander-border-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.form-control:focus {
    outline: none;
    border-color: var(--zander-red);
    box-shadow: 0 0 0 3px rgba(191, 10, 48, 0.1);
}

.form-control::placeholder {
    color: var(--zander-gray);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--zander-gray);
    margin-top: var(--spacing-xs);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--zander-red);
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* ----------------------------------------------------------------------------
   9. TABLES
   ---------------------------------------------------------------------------- */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--zander-white);
}

.table thead {
    background: var(--zander-off-white);
    border-bottom: 2px solid var(--zander-border-gray);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--zander-navy);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--zander-border-gray);
    color: var(--zander-dark-gray);
}

.table tbody tr:hover {
    background: var(--zander-off-white);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ----------------------------------------------------------------------------
   10. BADGES & TAGS
   ---------------------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #E6A800;
}

.badge-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger);
}

.badge-info {
    background: rgba(23, 162, 184, 0.1);
    color: var(--info);
}

.badge-primary {
    background: rgba(191, 10, 48, 0.1);
    color: var(--zander-red);
}

/* ----------------------------------------------------------------------------
   11. MODALS
   ---------------------------------------------------------------------------- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
}

.modal-content {
    position: relative;
    background: var(--zander-white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--zander-border-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--zander-navy);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--zander-gray);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.modal-close:hover {
    background: var(--zander-off-white);
    color: var(--zander-dark-gray);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--zander-border-gray);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

/* ----------------------------------------------------------------------------
   12. DROPDOWNS
   ---------------------------------------------------------------------------- */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-sm);
    background: var(--zander-white);
    border: 1px solid var(--zander-border-gray);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: var(--z-dropdown);
}

.dropdown-menu.active {
    display: block;
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--zander-dark-gray);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--zander-off-white);
    color: var(--zander-red);
}

.dropdown-divider {
    height: 1px;
    background: var(--zander-border-gray);
    margin: var(--spacing-xs) 0;
}

/* ----------------------------------------------------------------------------
   13. ALERTS & TOASTS
   ---------------------------------------------------------------------------- */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--warning);
    color: #E6A800;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    border-color: var(--info);
    color: var(--info);
}

/* ----------------------------------------------------------------------------
   14. UTILITIES
   ---------------------------------------------------------------------------- */

/* Text Colors */
.text-primary { color: var(--zander-red); }
.text-secondary { color: var(--zander-navy); }
.text-muted { color: var(--zander-gray); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

/* Background Colors */
.bg-white { background: var(--zander-white); }
.bg-light { background: var(--zander-off-white); }
.bg-primary { background: var(--zander-red); }
.bg-secondary { background: var(--zander-navy); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Font Weights */
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* Position */
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }

/* Width */
.w-100 { width: 100%; }
.w-50 { width: 50%; }
.w-auto { width: auto; }

/* ----------------------------------------------------------------------------
   15. APP-SPECIFIC COMPONENTS
   ---------------------------------------------------------------------------- */

/* Main Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-content {
    display: flex;
    flex: 1;
}

.main-content {
    flex: 1;
    margin-left: 240px;
    padding: var(--spacing-xl);
    min-height: calc(100vh - 60px);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--zander-navy);
    margin: 0;
}

.page-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Deal/Contact Card */
.item-card {
    background: var(--zander-white);
    border: 1px solid var(--zander-border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.item-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.item-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-sm);
}

.item-title {
    font-weight: 600;
    color: var(--zander-navy);
    margin-bottom: var(--spacing-xs);
}

.item-subtitle {
    font-size: var(--font-size-sm);
    color: var(--zander-gray);
}

.item-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--zander-gray);
}

/* Avatar */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zander-red);
    color: var(--zander-white);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--font-size-lg);
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(191, 10, 48, 0.2);
    border-top-color: var(--zander-red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--zander-gray);
}

.empty-state-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--zander-dark-gray);
    margin-bottom: var(--spacing-sm);
}

/* ----------------------------------------------------------------------------
   16. RESPONSIVE DESIGN
   ---------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ----------------------------------------------------------------------------
   17. PRINT STYLES
   ---------------------------------------------------------------------------- */
@media print {
    .navbar,
    .sidebar,
    .page-actions,
    .btn {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
}