/**
 * ============================================
 * KOZAN SAAS DESIGN SYSTEM
 * Professional SaaS-Level UI Framework
 * ============================================
 * 
 * Felsefe: Ultra-premium, micro-animated, glassmorphic
 * Kullanım: Tüm sayfalarda header.php üzerinden include edilir
 */

/* ============================================
   CSS VARIABLES - DESIGN TOKENS
   ============================================ */
:root {
    /* === PRIMARY PALETTE === */
    --saas-bg-primary: #0a0e1a;
    --saas-bg-secondary: #0f1629;
    --saas-bg-tertiary: #1a1f36;
    --saas-bg-elevated: #1e2642;
    
    /* === SURFACE & GLASS === */
    --saas-surface: rgba(15, 22, 41, 0.95);
    --saas-surface-hover: rgba(25, 35, 60, 0.98);
    --saas-glass: rgba(255, 255, 255, 0.02);
    --saas-glass-hover: rgba(255, 255, 255, 0.05);
    --saas-glass-active: rgba(255, 255, 255, 0.08);
    --saas-glass-border: rgba(255, 255, 255, 0.06);
    --saas-glass-border-hover: rgba(255, 255, 255, 0.12);
    
    /* === ACCENT COLORS === */
    --saas-accent-1: #6366f1;  /* Indigo */
    --saas-accent-2: #22d3ee;  /* Cyan */
    --saas-accent-3: #a855f7;  /* Purple */
    --saas-accent-4: #f472b6;  /* Pink */
    --saas-accent-5: #fbbf24;  /* Amber */
    
    /* === SEMANTIC COLORS === */
    --saas-success: #10b981;
    --saas-success-soft: rgba(16, 185, 129, 0.12);
    --saas-warning: #f59e0b;
    --saas-warning-soft: rgba(245, 158, 11, 0.12);
    --saas-danger: #ef4444;
    --saas-danger-soft: rgba(239, 68, 68, 0.12);
    --saas-info: #06b6d4;
    --saas-info-soft: rgba(6, 182, 212, 0.12);
    
    /* === TEXT COLORS === */
    --saas-text-primary: #f1f5f9;
    --saas-text-secondary: #94a3b8;
    --saas-text-muted: #64748b;
    --saas-text-disabled: #475569;
    
    /* === BORDER & DIVIDERS === */
    --saas-border: rgba(255, 255, 255, 0.06);
    --saas-border-hover: rgba(99, 102, 241, 0.25);
    --saas-border-focus: rgba(99, 102, 241, 0.5);
    --saas-divider: rgba(255, 255, 255, 0.04);
    
    /* === SHADOWS & GLOWS === */
    --saas-shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.2);
    --saas-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
    --saas-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --saas-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
    --saas-shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.5);
    --saas-glow-primary: 0 0 40px rgba(99, 102, 241, 0.2);
    --saas-glow-cyan: 0 0 40px rgba(34, 211, 238, 0.2);
    --saas-glow-success: 0 0 40px rgba(16, 185, 129, 0.2);
    
    /* === GRADIENTS === */
    --saas-gradient-primary: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    --saas-gradient-accent: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
    --saas-gradient-surface: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
    --saas-gradient-shine: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.05) 50%, transparent 70%);
    
    /* === TYPOGRAPHY === */
    --saas-font-display: 'Space Grotesk', -apple-system, sans-serif;
    --saas-font-body: 'Inter', -apple-system, sans-serif;
    --saas-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* === TRANSITIONS === */
    --saas-ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --saas-ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --saas-ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --saas-duration-fast: 0.15s;
    --saas-duration-normal: 0.25s;
    --saas-duration-slow: 0.4s;
    
    /* === SPACING === */
    --saas-spacing-xs: 0.25rem;
    --saas-spacing-sm: 0.5rem;
    --saas-spacing-md: 1rem;
    --saas-spacing-lg: 1.5rem;
    --saas-spacing-xl: 2rem;
    --saas-spacing-2xl: 3rem;
    
    /* === RADIUS === */
    --saas-radius-sm: 6px;
    --saas-radius-md: 10px;
    --saas-radius-lg: 14px;
    --saas-radius-xl: 20px;
    --saas-radius-full: 9999px;
    
    /* === Z-INDEX === */
    --saas-z-dropdown: 100;
    --saas-z-sticky: 200;
    --saas-z-modal-backdrop: 300;
    --saas-z-modal: 400;
    --saas-z-tooltip: 500;
    --saas-z-toast: 600;
}

/* ============================================
   GLOBAL RESETS & BASE
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--saas-font-body);
    background: var(--saas-bg-primary);
    color: var(--saas-text-primary);
    line-height: 1.6;
}

/* ============================================
   TYPOGRAPHY UTILITIES
   ============================================ */
.saas-heading-1 {
    font-family: var(--saas-font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.saas-heading-2 {
    font-family: var(--saas-font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.saas-heading-3 {
    font-family: var(--saas-font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.saas-text-gradient {
    background: var(--saas-gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* ============================================
   CARD COMPONENTS
   ============================================ */
.saas-card {
    background: var(--saas-surface);
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-radius-lg);
    backdrop-filter: blur(20px);
    transition: 
        transform var(--saas-duration-normal) var(--saas-ease-smooth),
        box-shadow var(--saas-duration-normal) var(--saas-ease-smooth),
        border-color var(--saas-duration-normal) var(--saas-ease-smooth);
    position: relative;
    overflow: hidden;
}

.saas-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--saas-gradient-surface);
    opacity: 0;
    transition: opacity var(--saas-duration-normal) var(--saas-ease-smooth);
    pointer-events: none;
}

.saas-card:hover {
    transform: translateY(-4px);
    border-color: var(--saas-border-hover);
    box-shadow: var(--saas-shadow-lg), var(--saas-glow-primary);
}

.saas-card:hover::before {
    opacity: 1;
}

.saas-card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--saas-divider);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.saas-card-title {
    font-family: var(--saas-font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--saas-text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
}

.saas-card-title i {
    color: var(--saas-accent-1);
    font-size: 1.1rem;
}

.saas-card-body {
    padding: 1.5rem;
}

.saas-card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--saas-divider);
    background: var(--saas-glass);
}

/* Card Variants */
.saas-card.glass {
    background: var(--saas-glass);
    border: 1px solid var(--saas-glass-border);
}

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

.saas-card.interactive {
    cursor: pointer;
}

.saas-card.interactive:active {
    transform: translateY(-2px) scale(0.99);
}

/* ============================================
   STAT CARDS
   ============================================ */
.saas-stat-card {
    background: var(--saas-surface);
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-radius-lg);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--saas-duration-normal) var(--saas-ease-smooth);
}

.saas-stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, var(--stat-color, var(--saas-accent-1)) 0%, transparent 70%);
    opacity: 0.08;
    transform: translate(30%, -30%);
    transition: opacity var(--saas-duration-normal);
}

.saas-stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--saas-border-hover);
    box-shadow: var(--saas-shadow-lg);
}

.saas-stat-card:hover::after {
    opacity: 0.15;
}

.saas-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--saas-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    position: relative;
    --stat-color: var(--saas-accent-1);
    background: linear-gradient(135deg, 
        color-mix(in srgb, var(--stat-color) 20%, transparent),
        color-mix(in srgb, var(--stat-color) 8%, transparent)
    );
    color: var(--stat-color);
}

.saas-stat-icon.primary { --stat-color: var(--saas-accent-1); }
.saas-stat-icon.success { --stat-color: var(--saas-success); }
.saas-stat-icon.warning { --stat-color: var(--saas-warning); }
.saas-stat-icon.danger { --stat-color: var(--saas-danger); }
.saas-stat-icon.info { --stat-color: var(--saas-info); }
.saas-stat-icon.cyan { --stat-color: var(--saas-accent-2); }

.saas-stat-value {
    font-family: var(--saas-font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--saas-text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.saas-stat-label {
    font-size: 0.85rem;
    color: var(--saas-text-muted);
}

.saas-stat-trend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--saas-radius-full);
    margin-top: 0.5rem;
}

.saas-stat-trend.up {
    background: var(--saas-success-soft);
    color: var(--saas-success);
}

.saas-stat-trend.down {
    background: var(--saas-danger-soft);
    color: var(--saas-danger);
}

/* ============================================
   BUTTONS
   ============================================ */
.saas-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-family: var(--saas-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    border: none;
    border-radius: var(--saas-radius-md);
    cursor: pointer;
    transition: 
        transform var(--saas-duration-fast) var(--saas-ease-smooth),
        box-shadow var(--saas-duration-fast) var(--saas-ease-smooth),
        background var(--saas-duration-fast) var(--saas-ease-smooth);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.saas-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--saas-gradient-shine);
    transform: translateX(-100%);
    transition: transform 0.5s var(--saas-ease-smooth);
}

.saas-btn:hover::before {
    transform: translateX(100%);
}

.saas-btn:active {
    transform: scale(0.97);
}

/* Primary Button */
.saas-btn-primary {
    background: var(--saas-gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.saas-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    color: white;
}

/* Secondary Button */
.saas-btn-secondary {
    background: var(--saas-glass);
    color: var(--saas-text-primary);
    border: 1px solid var(--saas-border);
}

.saas-btn-secondary:hover {
    background: var(--saas-glass-hover);
    border-color: var(--saas-border-hover);
    color: var(--saas-text-primary);
}

/* Ghost Button */
.saas-btn-ghost {
    background: transparent;
    color: var(--saas-text-secondary);
}

.saas-btn-ghost:hover {
    background: var(--saas-glass);
    color: var(--saas-text-primary);
}

/* Outline Button */
.saas-btn-outline {
    background: transparent;
    color: var(--saas-accent-1);
    border: 1px solid var(--saas-accent-1);
}

.saas-btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--saas-accent-1);
}

/* Danger Button */
.saas-btn-danger {
    background: var(--saas-danger);
    color: white;
}

.saas-btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
}

/* Success Button */
.saas-btn-success {
    background: var(--saas-success);
    color: white;
}

.saas-btn-success:hover {
    background: #059669;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

/* Button Sizes */
.saas-btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
}

.saas-btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.saas-btn-icon {
    padding: 0.625rem;
    aspect-ratio: 1;
}

/* ============================================
   BADGES
   ============================================ */
.saas-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-radius: var(--saas-radius-full);
    border: 1px solid transparent;
}

.saas-badge-primary {
    background: rgba(99, 102, 241, 0.12);
    color: var(--saas-accent-1);
    border-color: rgba(99, 102, 241, 0.25);
}

.saas-badge-success {
    background: var(--saas-success-soft);
    color: var(--saas-success);
    border-color: rgba(16, 185, 129, 0.25);
}

.saas-badge-warning {
    background: var(--saas-warning-soft);
    color: var(--saas-warning);
    border-color: rgba(245, 158, 11, 0.25);
}

.saas-badge-danger {
    background: var(--saas-danger-soft);
    color: var(--saas-danger);
    border-color: rgba(239, 68, 68, 0.25);
}

.saas-badge-info {
    background: var(--saas-info-soft);
    color: var(--saas-info);
    border-color: rgba(6, 182, 212, 0.25);
}

.saas-badge-neutral {
    background: var(--saas-glass);
    color: var(--saas-text-secondary);
    border-color: var(--saas-border);
}

/* Pulse animation for live badges */
.saas-badge-pulse::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    animation: saas-pulse 2s infinite;
}

/* ============================================
   TABLES
   ============================================ */
.saas-table-wrapper {
    background: var(--saas-surface);
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-radius-lg);
    overflow: hidden;
}

.saas-table {
    width: 100%;
    border-collapse: collapse;
    color: var(--saas-text-primary);
}

.saas-table thead {
    background: var(--saas-glass);
}

.saas-table thead th {
    padding: 1rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--saas-text-muted);
    text-align: left;
    border: none;
    white-space: nowrap;
}

.saas-table tbody tr {
    transition: background var(--saas-duration-fast) var(--saas-ease-smooth);
    border-bottom: 1px solid var(--saas-divider);
}

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

.saas-table tbody tr:hover {
    background: var(--saas-glass-hover);
}

.saas-table tbody td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
}

/* Table row selection */
.saas-table tbody tr.selected {
    background: rgba(99, 102, 241, 0.08);
}

/* Clickable rows */
.saas-table.clickable tbody tr {
    cursor: pointer;
}

.saas-table.clickable tbody tr:active {
    background: var(--saas-glass-active);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.saas-input-group {
    margin-bottom: 1.25rem;
}

.saas-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--saas-text-secondary);
    margin-bottom: 0.5rem;
}

.saas-input,
.saas-select,
.saas-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--saas-font-body);
    font-size: 0.9375rem;
    color: var(--saas-text-primary);
    background: var(--saas-glass);
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-radius-md);
    transition: 
        border-color var(--saas-duration-fast) var(--saas-ease-smooth),
        box-shadow var(--saas-duration-fast) var(--saas-ease-smooth),
        background var(--saas-duration-fast) var(--saas-ease-smooth);
}

.saas-input::placeholder,
.saas-textarea::placeholder {
    color: var(--saas-text-disabled);
}

.saas-input:hover,
.saas-select:hover,
.saas-textarea:hover {
    border-color: var(--saas-border-hover);
    background: var(--saas-glass-hover);
}

.saas-input:focus,
.saas-select:focus,
.saas-textarea:focus {
    outline: none;
    border-color: var(--saas-accent-1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background: var(--saas-glass-active);
}

.saas-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.saas-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Input with icon */
.saas-input-icon-wrapper {
    position: relative;
}

.saas-input-icon-wrapper .saas-input {
    padding-left: 2.75rem;
}

.saas-input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--saas-text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: color var(--saas-duration-fast);
}

.saas-input-icon-wrapper:focus-within .saas-input-icon {
    color: var(--saas-accent-1);
}

/* Checkbox & Radio */
.saas-checkbox,
.saas-radio {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9375rem;
    color: var(--saas-text-secondary);
}

.saas-checkbox input,
.saas-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--saas-accent-1);
}

/* ============================================
   ALERTS & NOTIFICATIONS
   ============================================ */
.saas-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--saas-radius-md);
    border: 1px solid;
    font-size: 0.9375rem;
}

.saas-alert i {
    font-size: 1.1rem;
    margin-top: 2px;
}

.saas-alert-info {
    background: var(--saas-info-soft);
    border-color: rgba(6, 182, 212, 0.25);
    color: var(--saas-info);
}

.saas-alert-success {
    background: var(--saas-success-soft);
    border-color: rgba(16, 185, 129, 0.25);
    color: var(--saas-success);
}

.saas-alert-warning {
    background: var(--saas-warning-soft);
    border-color: rgba(245, 158, 11, 0.25);
    color: var(--saas-warning);
}

.saas-alert-danger {
    background: var(--saas-danger-soft);
    border-color: rgba(239, 68, 68, 0.25);
    color: var(--saas-danger);
}

/* ============================================
   LOADING STATES
   ============================================ */
/* Skeleton Loader */
.saas-skeleton {
    background: linear-gradient(
        90deg,
        var(--saas-glass) 25%,
        var(--saas-glass-hover) 50%,
        var(--saas-glass) 75%
    );
    background-size: 200% 100%;
    animation: saas-shimmer 1.5s infinite;
    border-radius: var(--saas-radius-sm);
}

.saas-skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.saas-skeleton-text:last-child {
    width: 60%;
}

.saas-skeleton-circle {
    border-radius: 50%;
}

.saas-skeleton-card {
    height: 200px;
    border-radius: var(--saas-radius-lg);
}

/* Spinner */
.saas-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--saas-glass);
    border-top-color: var(--saas-accent-1);
    border-radius: 50%;
    animation: saas-spin 0.8s linear infinite;
}

.saas-spinner-sm {
    width: 16px;
    height: 16px;
}

.saas-spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

/* Loading Overlay */
.saas-loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: all var(--saas-duration-normal);
}

.saas-loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   TOOLTIP
   ============================================ */
.saas-tooltip {
    position: relative;
}

.saas-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 0.5rem 0.75rem;
    background: var(--saas-bg-elevated);
    color: var(--saas-text-primary);
    font-size: 0.8125rem;
    white-space: nowrap;
    border-radius: var(--saas-radius-sm);
    box-shadow: var(--saas-shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--saas-duration-fast) var(--saas-ease-smooth);
    pointer-events: none;
    z-index: var(--saas-z-tooltip);
}

.saas-tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   EMPTY STATES
   ============================================ */
.saas-empty-state {
    text-align: center;
    padding: 3rem 2rem;
}

.saas-empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--saas-glass);
    border-radius: var(--saas-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--saas-text-muted);
}

.saas-empty-state-title {
    font-family: var(--saas-font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--saas-text-primary);
    margin-bottom: 0.5rem;
}

.saas-empty-state-desc {
    color: var(--saas-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
}

/* ============================================
   AVATAR
   ============================================ */
.saas-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--saas-gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.saas-avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
}

.saas-avatar-lg {
    width: 56px;
    height: 56px;
    font-size: 1.2rem;
}

.saas-avatar-xl {
    width: 72px;
    height: 72px;
    font-size: 1.5rem;
}

/* Avatar Group */
.saas-avatar-group {
    display: flex;
}

.saas-avatar-group .saas-avatar {
    border: 2px solid var(--saas-bg-primary);
    margin-left: -8px;
}

.saas-avatar-group .saas-avatar:first-child {
    margin-left: 0;
}

/* ============================================
   DIVIDERS
   ============================================ */
.saas-divider {
    height: 1px;
    background: var(--saas-divider);
    margin: 1.5rem 0;
}

.saas-divider-vertical {
    width: 1px;
    height: 100%;
    background: var(--saas-divider);
}

.saas-divider-text {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--saas-text-muted);
    font-size: 0.8125rem;
}

.saas-divider-text::before,
.saas-divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--saas-divider);
}

/* ============================================
   DROPDOWN
   ============================================ */
.saas-dropdown {
    position: relative;
    display: inline-block;
}

.saas-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--saas-surface);
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-radius-lg);
    padding: 0.5rem;
    box-shadow: var(--saas-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--saas-duration-normal) var(--saas-ease-smooth);
    z-index: var(--saas-z-dropdown);
}

.saas-dropdown.open .saas-dropdown-menu,
.saas-dropdown:focus-within .saas-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.saas-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    color: var(--saas-text-secondary);
    text-decoration: none;
    border-radius: var(--saas-radius-sm);
    font-size: 0.9rem;
    transition: all var(--saas-duration-fast);
}

.saas-dropdown-item:hover {
    background: var(--saas-glass-hover);
    color: var(--saas-text-primary);
}

.saas-dropdown-item.danger {
    color: var(--saas-danger);
}

.saas-dropdown-item.danger:hover {
    background: var(--saas-danger-soft);
}

.saas-dropdown-divider {
    height: 1px;
    background: var(--saas-divider);
    margin: 0.5rem 0;
}

/* ============================================
   TABS
   ============================================ */
.saas-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--saas-border);
    padding-bottom: -1px;
}

.saas-tab {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--saas-text-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--saas-duration-fast);
    position: relative;
}

.saas-tab:hover {
    color: var(--saas-text-primary);
    background: var(--saas-glass);
}

.saas-tab.active {
    color: var(--saas-accent-1);
    border-bottom-color: var(--saas-accent-1);
}

.saas-tab-content {
    padding: 1.5rem 0;
}

/* ============================================
   PROGRESS BAR
   ============================================ */
.saas-progress {
    height: 8px;
    background: var(--saas-glass);
    border-radius: var(--saas-radius-full);
    overflow: hidden;
}

.saas-progress-bar {
    height: 100%;
    background: var(--saas-gradient-primary);
    border-radius: var(--saas-radius-full);
    transition: width var(--saas-duration-slow) var(--saas-ease-smooth);
    position: relative;
}

.saas-progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: saas-shimmer 2s infinite;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
/* Flexbox */
.saas-flex { display: flex; }
.saas-flex-center { display: flex; align-items: center; justify-content: center; }
.saas-flex-between { display: flex; align-items: center; justify-content: space-between; }
.saas-flex-wrap { flex-wrap: wrap; }
.saas-gap-1 { gap: 0.25rem; }
.saas-gap-2 { gap: 0.5rem; }
.saas-gap-3 { gap: 1rem; }
.saas-gap-4 { gap: 1.5rem; }

/* Grid */
.saas-grid { display: grid; }
.saas-grid-2 { grid-template-columns: repeat(2, 1fr); }
.saas-grid-3 { grid-template-columns: repeat(3, 1fr); }
.saas-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1200px) {
    .saas-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .saas-grid-2,
    .saas-grid-3,
    .saas-grid-4 { grid-template-columns: 1fr; }
}

/* Spacing */
.saas-mt-1 { margin-top: 0.25rem; }
.saas-mt-2 { margin-top: 0.5rem; }
.saas-mt-3 { margin-top: 1rem; }
.saas-mt-4 { margin-top: 1.5rem; }
.saas-mt-5 { margin-top: 2rem; }

.saas-mb-1 { margin-bottom: 0.25rem; }
.saas-mb-2 { margin-bottom: 0.5rem; }
.saas-mb-3 { margin-bottom: 1rem; }
.saas-mb-4 { margin-bottom: 1.5rem; }
.saas-mb-5 { margin-bottom: 2rem; }

.saas-p-1 { padding: 0.25rem; }
.saas-p-2 { padding: 0.5rem; }
.saas-p-3 { padding: 1rem; }
.saas-p-4 { padding: 1.5rem; }
.saas-p-5 { padding: 2rem; }

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

/* Visibility */
.saas-hidden { display: none !important; }
.saas-visible { visibility: visible; }
.saas-invisible { visibility: hidden; }

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */
@keyframes saas-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes saas-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes saas-fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes saas-scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes saas-slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes saas-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

@keyframes saas-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes saas-glow {
    0%, 100% { box-shadow: 0 0 20px var(--saas-accent-1); }
    50% { box-shadow: 0 0 40px var(--saas-accent-1); }
}

@keyframes saas-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Animation utility classes */
.saas-animate-fadeIn { animation: saas-fadeIn 0.3s var(--saas-ease-smooth) forwards; }
.saas-animate-fadeInUp { animation: saas-fadeInUp 0.4s var(--saas-ease-smooth) forwards; }
.saas-animate-fadeInDown { animation: saas-fadeInDown 0.4s var(--saas-ease-smooth) forwards; }
.saas-animate-scaleIn { animation: saas-scaleIn 0.3s var(--saas-ease-smooth) forwards; }
.saas-animate-slideInRight { animation: saas-slideInRight 0.4s var(--saas-ease-smooth) forwards; }

/* Staggered animations */
.saas-stagger > * {
    opacity: 0;
    animation: saas-fadeInUp 0.4s var(--saas-ease-smooth) forwards;
}

.saas-stagger > *:nth-child(1) { animation-delay: 0.05s; }
.saas-stagger > *:nth-child(2) { animation-delay: 0.1s; }
.saas-stagger > *:nth-child(3) { animation-delay: 0.15s; }
.saas-stagger > *:nth-child(4) { animation-delay: 0.2s; }
.saas-stagger > *:nth-child(5) { animation-delay: 0.25s; }
.saas-stagger > *:nth-child(6) { animation-delay: 0.3s; }
.saas-stagger > *:nth-child(7) { animation-delay: 0.35s; }
.saas-stagger > *:nth-child(8) { animation-delay: 0.4s; }
.saas-stagger > *:nth-child(9) { animation-delay: 0.45s; }
.saas-stagger > *:nth-child(10) { animation-delay: 0.5s; }

/* Hover animations */
.saas-hover-lift {
    transition: transform var(--saas-duration-normal) var(--saas-ease-smooth);
}

.saas-hover-lift:hover {
    transform: translateY(-4px);
}

.saas-hover-glow:hover {
    box-shadow: var(--saas-glow-primary);
}

.saas-hover-scale {
    transition: transform var(--saas-duration-normal) var(--saas-ease-smooth);
}

.saas-hover-scale:hover {
    transform: scale(1.02);
}