/* ============================================
   UNIFIED DESIGN SYSTEM - PREMIUM MINIMALIST
   Sage Green Theme - Compact & Responsive
   ============================================ */

:root {
    /* Sage Green Palette */
    --sage-primary: #87A96B;
    --sage-light: #A4C49A;
    --sage-dark: #6B8E5F;
    --sage-subtle: #E8F0E3;
    --sage-medium: #9CAF88;
    
    /* Neutrals */
    --neutral-50: #FAFAFA;
    --neutral-100: #F5F5F5;
    --neutral-200: #E5E5E5;
    --neutral-300: #D4D4D4;
    --neutral-400: #A3A3A3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;
    
    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --info: #3B82F6;
    --error: #EF4444;
    
    /* Spacing - Compact */
    --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;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   GLOBAL RESETS
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Helvetica Neue', sans-serif;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--neutral-800);
    background: var(--neutral-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   UNIFIED BUTTON SYSTEM
   ============================================ */
.btn-minimal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    background: transparent;
}

.btn-minimal-primary {
    background: var(--sage-primary);
    color: white;
    border-color: var(--sage-primary);
}

.btn-minimal-primary:hover {
    background: var(--sage-dark);
    border-color: var(--sage-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-minimal-ghost {
    background: transparent;
    color: var(--neutral-800);
    border-color: var(--neutral-300);
}

.btn-minimal-ghost:hover {
    background: var(--sage-primary);
    color: white;
    border-color: var(--sage-primary);
    transform: translateY(-1px);
}

.btn-minimal-outline {
    background: white;
    color: var(--sage-primary);
    border-color: var(--sage-primary);
}

.btn-minimal-outline:hover {
    background: var(--sage-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-minimal-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-minimal-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ============================================
   UNIFIED CARD SYSTEM
   ============================================ */
.card-minimal {
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-200);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.card-minimal:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--neutral-300);
}

.card-minimal-compact {
    padding: var(--space-4);
}

.card-minimal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--neutral-200);
}

.card-minimal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--neutral-900);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.card-minimal-title i {
    color: var(--sage-primary);
}

/* ============================================
   UNIFIED FORM ELEMENTS
   ============================================ */
.form-group-minimal {
    margin-bottom: var(--space-4);
}

.label-minimal {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--neutral-700);
    margin-bottom: var(--space-2);
}

.input-minimal {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--neutral-900);
    background: white;
    border: 1.5px solid var(--neutral-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

.input-minimal:focus {
    border-color: var(--sage-primary);
    box-shadow: 0 0 0 3px rgba(135, 169, 107, 0.1);
}

.input-minimal::placeholder {
    color: var(--neutral-400);
}

.select-minimal {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--neutral-900);
    background: white;
    border: 1.5px solid var(--neutral-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
    cursor: pointer;
}

.select-minimal:focus {
    border-color: var(--sage-primary);
    box-shadow: 0 0 0 3px rgba(135, 169, 107, 0.1);
}

/* ============================================
   UNIFIED ALERT SYSTEM
   ============================================ */
.alert-minimal {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    border-left: 3px solid;
}

.alert-minimal i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-minimal-success {
    background: var(--sage-subtle);
    border-color: var(--sage-primary);
    color: var(--sage-dark);
}

.alert-minimal-error {
    background: #FEE2E2;
    border-color: var(--error);
    color: #991B1B;
}

.alert-minimal-warning {
    background: #FEF3C7;
    border-color: var(--warning);
    color: #92400E;
}

.alert-minimal-info {
    background: #DBEAFE;
    border-color: var(--info);
    color: #1E40AF;
}

/* ============================================
   UNIFIED BADGE SYSTEM
   ============================================ */
.badge-minimal {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-minimal-primary {
    background: var(--sage-subtle);
    color: var(--sage-dark);
}

.badge-minimal-success {
    background: #D1FAE5;
    color: #065F46;
}

.badge-minimal-warning {
    background: #FEF3C7;
    color: #92400E;
}

.badge-minimal-danger {
    background: #FEE2E2;
    color: #991B1B;
}

.badge-minimal-info {
    background: #DBEAFE;
    color: #1E40AF;
}

/* ============================================
   UNIFIED TABLE SYSTEM
   ============================================ */
.table-minimal {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-minimal thead {
    background: var(--neutral-50);
}

.table-minimal th {
    padding: var(--space-4);
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--neutral-700);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--neutral-200);
}

.table-minimal td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--neutral-200);
    color: var(--neutral-800);
}

.table-minimal tbody tr:hover {
    background: var(--neutral-50);
}

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

/* ============================================
   UNIFIED PAGE CONTAINER
   ============================================ */
.page-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-4);
}

.page-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--neutral-200);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--neutral-900);
    margin: 0 0 var(--space-2) 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.page-title i {
    color: var(--sage-primary);
}

.page-subtitle {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    margin: 0;
}

/* ============================================
   UNIFIED GRID SYSTEM
   ============================================ */
.grid-minimal {
    display: grid;
    gap: var(--space-4);
}

.grid-minimal-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-minimal-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-minimal-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   UNIFIED STAT CARD
   ============================================ */
.stat-card-minimal {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    border: 1px solid var(--neutral-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--neutral-900);
    margin-bottom: var(--space-1);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--neutral-600);
    font-weight: 500;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-3);
}

.stat-icon-primary {
    background: var(--sage-subtle);
    color: var(--sage-primary);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .page-container {
        padding: var(--space-4) var(--space-3);
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .card-minimal {
        padding: var(--space-4);
    }
    
    .grid-minimal-2,
    .grid-minimal-3,
    .grid-minimal-4 {
        grid-template-columns: 1fr;
    }
    
    .btn-minimal {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-sage {
    color: var(--sage-primary);
}

.bg-sage-subtle {
    background: var(--sage-subtle);
}

.border-sage {
    border-color: var(--sage-primary);
}

.shadow-minimal {
    box-shadow: var(--shadow-sm);
}

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

.rounded-minimal {
    border-radius: var(--radius-md);
}

.rounded-minimal-lg {
    border-radius: var(--radius-lg);
}