/* ========================================
   RESPONSIVE GRID SYSTEM (Bootstrap-like)
   ======================================== */

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1rem;
}

/* Row */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
    padding: 0 0.75rem; /* Use padding instead of negative margin */
}

.row.no-gutters {
    margin: 0;
}

.row.no-gutters > [class*="col-"] {
    padding: 0;
}

/* Column Base */
[class*="col-"] {
    position: relative;
    width: 100%;
    padding: 0 0.75rem; /* Half of row negative margin */
    box-sizing: border-box;
}

/* Extra Small Devices (phones, 0px and up) */
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Auto columns */
.col-auto { flex: 0 0 auto; width: auto; max-width: none; }

/* Small Devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .container { max-width: 550px; }
    
    .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
    .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
    
    .col-sm-auto { flex: 0 0 auto; width: auto; max-width: none; }
}

/* Medium Devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .container { max-width: 750px; padding: auto; }
    
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
    
    .col-md-auto { flex: 0 0 auto; width: auto; max-width: none; }
}

/* Large Devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .container { max-width: 960px; }
    
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
    
    .col-lg-auto { flex: 0 0 auto; width: auto; max-width: none; }
}

/* Extra Large Devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container { max-width: 1140px; }
    
    .col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
    .col-xl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-xl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
    
    .col-xl-auto { flex: 0 0 auto; width: auto; max-width: none; }
}

/* Extra Extra Large Devices (1400px and up) */
@media (min-width: 1400px) {
    .container { max-width: 1320px; }
    
    .col-xxl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xxl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xxl-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xxl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xxl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-xxl-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xxl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-xxl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xxl-9 { flex: 0 0 75%; max-width: 75%; }
    .col-xxl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-xxl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-xxl-12 { flex: 0 0 100%; max-width: 100%; }
    
    .col-xxl-auto { flex: 0 0 auto; width: auto; max-width: none; }
}

/* Utility Classes for Grid */
.d-flex { display: flex !important; }
.d-block { display: block !important; }
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }

/* Flex utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

/* Spacing utilities */
.m-0 { margin: 0 !important; }
.m-1 { margin: 0.25rem !important; }
.m-2 { margin: 0.5rem !important; }
.m-3 { margin: 1rem !important; }
.m-4 { margin: 1.5rem !important; }
.m-5 { margin: 3rem !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

/* Additional utility classes */
.me-3 { margin-right: 1rem !important; }
.ms-3 { margin-left: 1rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mt-4 { margin-top: 1.5rem !important; }

.pe-3 { padding-right: 1rem !important; }
.ps-3 { padding-left: 1rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pt-3 { padding-top: 1rem !important; }

/* Card Component */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    height: 100%; /* Ensure cards fill their container height */
}

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

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

.card-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

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

/* Dashboard specific grid improvements */
.dashboard-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.dashboard-grid .dashboard-card {
    flex: 1 1 300px; /* Minimum width of 300px, grow to fill available space */
    max-width: 100%;
    margin: 0;
    min-height: 400px;
}

/* Stats grid improvements */
.stats-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.stats-grid .stat-card {
    flex: 1 1 250px; /* Minimum width of 250px */
    max-width: 100%;
    margin: 0;
}

/* Responsive breakpoints for dashboard */
@media (max-width: 1200px) {
    .dashboard-grid .dashboard-card {
        flex: 1 1 45%; /* 2 columns on large screens */
    }
}

@media (max-width: 768px) {
    .dashboard-grid .dashboard-card {
        flex: 1 1 100%; /* 1 column on mobile */
        min-height: auto;
    }
    
    .stats-grid .stat-card {
        flex: 1 1 100%; /* 1 column on mobile */
    }
    
    .card-header {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .card-body {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    .dashboard-grid,
    .stats-grid {
        margin: 0;
        padding: 0;
        gap: 1rem;
    }
    
    .dashboard-grid .dashboard-card,
    .stats-grid .stat-card {
        margin: 0;
    }
    
    .container {
        padding: 0 0.5rem;
    }
}