/* =====================================================
   Service Opportunity - Service Missionaries Portal
   Main Stylesheet - Responsive Design
   ===================================================== */

:root {
    /* Primary Colors - Indigo Theme */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    
    /* Secondary Colors */
    --color-secondary: #8b5cf6;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Font Family */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* =====================================================
   Reset & Base Styles
   ===================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    width: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* =====================================================
   Layout - Main Container & Grid
   ===================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-col {
    flex-direction: column;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* =====================================================
   Sidebar & Header Layout
   ===================================================== */

body {
    display: flex;
    flex-direction: row;
}

.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    overflow-y: auto;
    transition: transform var(--transition-base);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

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

.nav-menu {
    list-style: none;
}

.nav-menu-item {
    margin-bottom: var(--spacing-md);
}

.nav-menu-link {
    color: var(--color-gray-200);
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.nav-menu-link:hover,
.nav-menu-link.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.nav-menu-icon {
    margin-right: var(--spacing-md);
    width: 20px;
    height: 20px;
}

/* =====================================================
   Forms & Inputs
   ===================================================== */

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-input,
textarea,
select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* Form Validation */
.form-input.error,
textarea.error,
select.error {
    border-color: var(--color-danger);
}

.form-error {
    color: var(--color-danger);
    font-size: var(--text-sm);
    margin-top: var(--spacing-sm);
}

.form-success {
    color: var(--color-success);
    font-size: var(--text-sm);
    margin-top: var(--spacing-sm);
}

/* =====================================================
   Buttons
   ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-gray-300);
    color: var(--color-gray-800);
}

.btn-secondary:hover {
    background-color: var(--color-gray-400);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-white);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--text-lg);
}

/* =====================================================
   Cards & Panels
   ===================================================== */

.card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-header h3 {
    margin-bottom: 0;
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

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

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-white);
}

thead {
    background-color: var(--color-gray-100);
}

th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-gray-700);
    border-bottom: 2px solid var(--color-gray-300);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

tbody tr:hover {
    background-color: var(--color-gray-50);
}

/* =====================================================
   Alerts & Messages
   ===================================================== */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-success {
    background-color: #d1fae5;
    border-left: 4px solid var(--color-success);
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    border-left: 4px solid var(--color-danger);
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-left: 4px solid var(--color-warning);
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border-left: 4px solid var(--color-info);
    color: #0c2340;
}

/* =====================================================
   Pagination
   ===================================================== */

.pagination {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.pagination-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-item:hover,
.pagination-item.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.pagination-item.disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* =====================================================
   Modal & Dialogs
   ===================================================== */

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

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--text-2xl);
    cursor: pointer;
    color: var(--color-gray-500);
}

/* =====================================================
   Badges & Tags
   ===================================================== */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
}

.badge-primary {
    background-color: #e0e7ff;
    color: #4f46e5;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

/* =====================================================
   Utility Classes
   ===================================================== */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.hidden { display: none !important; }
.visible { display: block !important; }

.text-muted { color: var(--color-gray-500); }
.text-dark { color: var(--color-gray-900); }

/* =====================================================
   Responsive Design - Mobile First
   ===================================================== */

/* Tablets (768px and up) */
@media (min-width: 768px) {
    .hamburger {
        display: none !important;
    }
}

/* Mobile (less than 768px) */
@media (max-width: 767px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        transform: translateX(-100%);
        z-index: 999;
        width: 200px;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        width: 100%;
    }

    .header {
        padding: var(--spacing-md);
    }

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

    /* Stack grid columns */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    /* Table to Cards on Mobile */
    table {
        display: block;
        border: none;
    }

    thead {
        display: none;
    }

    tbody,
    tr,
    td {
        display: block;
        width: 100%;
    }

    td {
        position: relative;
        padding-left: 50%;
        text-align: right;
        border: none;
        border-bottom: 1px solid var(--color-gray-200);
    }

    td::before {
        content: attr(data-label);
        position: absolute;
        left: var(--spacing-md);
        font-weight: 600;
        color: var(--color-gray-700);
    }

    /* Modal responsive */
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    h1 { font-size: var(--text-2xl); }
    h2 { font-size: var(--text-xl); }
    h3 { font-size: var(--text-lg); }
}

/* Hamburger Menu Icon */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: var(--spacing-md);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-gray-800);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Overlay */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.overlay.active {
    display: block;
}

/* =====================================================
   Activities Filters
   ===================================================== */

.activities-filter-toggle {
    margin-top: var(--spacing-md);
}

.activities-filter-toggle .btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-gray-800);
}

.activities-filter-toggle .btn-secondary:hover {
    background-color: var(--color-gray-300);
}

.filter-panel {
    display: none !important;
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.filter-panel.active {
    display: block !important;
}

.filter-rows {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.filter-row {
    display: grid;
    grid-template-columns: 1fr 1.2fr auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
}

.filter-control {
    display: flex;
    align-items: center;
}

.filter-field {
    max-width: none !important;
}

.filter-value {
    display: flex;
    align-items: center;
}

.filter-value .form-input {
    max-width: none !important;
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.filter-add,
.filter-remove {
    padding: var(--spacing-md) var(--spacing-md) !important;
    min-width: 2.5rem !important;
    min-height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg) !important;
    font-weight: 600 !important;
    border-radius: var(--radius-md) !important;
    transition: all var(--transition-fast) !important;
}

.filter-add {
    background-color: var(--color-success) !important;
    color: var(--color-white) !important;
}

.filter-add:hover {
    background-color: #059669 !important;
    box-shadow: var(--shadow-md) !important;
}

.filter-remove {
    background-color: var(--color-danger) !important;
    color: var(--color-white) !important;
}

.filter-remove:hover {
    background-color: #dc2626 !important;
    box-shadow: var(--shadow-md) !important;
}

.filter-remove:disabled {
    background-color: var(--color-gray-300) !important;
    color: var(--color-gray-500) !important;
    cursor: not-allowed !important;
    opacity: 0.6;
}

.filter-run {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
    gap: var(--spacing-md);
}

.filter-run .btn-primary {
    padding: var(--spacing-md) var(--spacing-xl);
}

.is-hidden {
    display: none;
}

@media (max-width: 768px) {
    .filter-row {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .filter-actions {
        justify-content: flex-end;
    }
    
    .filter-field,
    .filter-value .form-input {
        width: 100%;
    }
}