/**
 * Responsive Design Styles
 * Mobile-first approach with breakpoints
 */

/* ========================================
   Breakpoints
   ======================================== */
/* 
   Mobile: < 768px
   Tablet: 768px - 1024px
   Desktop: > 1024px
*/

/* ========================================
   Tablet (768px and up)
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
    }

    .navbar-container {
        padding: 0 var(--spacing-md);
    }

    .main-content {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   Mobile (768px and below)
   ======================================== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --spacing-2xl: 2rem;
    }

    /* Navigation */
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .navbar-menu.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--gray-100);
    }

    .navbar-toggle {
        display: block;
    }

    .user-name {
        display: none;
    }

    /* Main Content */
    .main-content {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    /* Cards */
    .card {
        padding: var(--spacing-md);
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    /* Tables */
    .table-container {
        overflow-x: scroll;
    }

    table {
        min-width: 600px;
    }

    /* Footer */
    .footer {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Flash Messages */
    .flash-message {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        top: 80px;
    }

    .flash-content {
        min-width: auto;
    }

    /* Buttons */
    .btn {
        width: 100%;
        justify-content: center;
    }

    .btn-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Forms */
    .form-row {
        flex-direction: column;
    }
}

/* ========================================
   Small Mobile (480px and below)
   ======================================== */
@media (max-width: 480px) {
    :root {
        --font-size-4xl: 1.5rem;
        --font-size-3xl: 1.25rem;
        --font-size-2xl: 1.125rem;
    }

    .navbar-brand span {
        display: none;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .page-link {
        min-width: 35px;
        height: 35px;
        font-size: var(--font-size-xs);
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {

    .navbar,
    .footer,
    .btn,
    .flash-message,
    .navbar-toggle {
        display: none !important;
    }

    .main-content {
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --bg-primary: #ffffff;
    }
}

/* Dark mode support (for future implementation) */
@media (prefers-color-scheme: dark) {
    /* Dark mode variables can be added here */
}