/**
 * Responsive Design Styles for Gram Panchayat Website
 * Mobile-first approach with progressive enhancement
 */

/* ==========================================================================
   Base Responsive Setup
   ========================================================================== */

:root {
    --mobile-breakpoint: 480px;
    --tablet-breakpoint: 768px;
    --desktop-breakpoint: 1024px;
    --large-desktop-breakpoint: 1200px;
}

/* ==========================================================================
   Typography & Base Styles
   ========================================================================== */

body {
    font-size: 16px;
    line-height: 1.6;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* ==========================================================================
   Layout & Grid System
   ========================================================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    flex: 1;
    padding: 0 15px;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
    padding: 1rem;
}

.navbar-brand {
    font-size: 1.5rem;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.navbar-toggler {
    display: block;
    background: none;
    border: 1px solid #ddd;
    padding: 0.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Gallery Styles
   ========================================================================== */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.gallery-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
}

.gallery-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-image:hover img {
    transform: scale(1.05);
}

.gallery-content {
    padding: 1.5rem;
}

.gallery-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.gallery-description {
    color: #6c757d;
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* ==========================================================================
   Cards & Components
   ========================================================================== */

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

.card-header {
    padding: 1.5rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

/* ==========================================================================
   Modal & Overlays
   ========================================================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    position: relative;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* ==========================================================================
   Progress & Loading
   ========================================================================== */

.progress {
    background: #e9ecef;
    border-radius: 10px;
    height: 8px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 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; }

/* ==========================================================================
   Mobile Styles (max-width: 768px)
   ========================================================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .navbar {
        padding: 0.5rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
        margin: 1rem 0;
    }

    .gallery-item {
        margin-bottom: 1rem;
    }

    .gallery-content {
        padding: 1rem;
    }

    .gallery-title {
        font-size: 1.1rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }

    .card-body {
        padding: 1rem;
    }

    .modal-content {
        max-width: 95vw;
        margin: 1rem;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }

    .table-responsive {
        font-size: 0.875rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
}

/* ==========================================================================
   Small Mobile Styles (max-width: 480px)
   ========================================================================== */

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .container {
        padding: 0 5px;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .gallery-image {
        height: 200px;
    }

    .gallery-content {
        padding: 0.75rem;
    }

    .form-control {
        padding: 0.625rem;
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .btn {
        padding: 0.75rem;
        font-size: 1rem;
    }

    .card-header,
    .card-body {
        padding: 0.75rem;
    }

    .modal-content {
        max-width: 100vw;
        max-height: 100vh;
        margin: 0;
        border-radius: 0;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .navbar,
    .btn,
    .modal,
    .progress {
        display: none !important;
    }

    .container {
        max-width: none;
        padding: 0;
    }

    .gallery-grid {
        display: block;
    }

    .gallery-item {
        break-inside: avoid;
        margin-bottom: 2rem;
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ==========================================================================
   Accessibility Enhancements
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .btn-primary {
        background: #000;
        color: #fff;
        border: 2px solid #000;
    }

    .card {
        border: 2px solid #000;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for keyboard navigation */
.btn:focus,
.form-control:focus,
.navbar-toggler:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #667eea;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 6px;
}