/* ===================================
   TOOLKIT SHARED STYLES
   Common styling for all toolkit pages
   =================================== */

:root {
    --toolkit-primary: #004080;
    --toolkit-secondary: #0066cc;
    --toolkit-accent: #00a8e8;
    --toolkit-success: #28a745;
    --toolkit-warning: #ffc107;
    --toolkit-danger: #dc3545;
    --toolkit-light: #f8f9fa;
    --toolkit-dark: #212529;
    --toolkit-border: #dee2e6;
    --toolkit-shadow: rgba(0, 51, 102, 0.1);
    --toolkit-shadow-lg: rgba(0, 51, 102, 0.2);
}

/* Ensure footer stays at bottom */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Tool Page Layout */
.toolkit-container {
    max-width: 100%;
    margin: 0;
    padding: 1rem;
}

.toolkit-container.fluid {
    max-width: 100%;
    padding: 1rem 2rem;
}

.toolkit-header {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--toolkit-border);
}

.toolkit-header h1 {
    color: var(--toolkit-primary);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.toolkit-header p {
    color: #666;
    font-size: 1.1rem;
}

/* Tool Content Area */
.tool-content {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 8px 20px var(--toolkit-shadow);
    margin-bottom: 2rem;
}

.tool-section {
    margin-bottom: 1.5rem;
}

.tool-section h2 {
    color: var(--toolkit-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--toolkit-light);
}

/* Two Column Layout */
.tool-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.tool-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--toolkit-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--toolkit-shadow-lg);
}

.btn-secondary {
    background: var(--toolkit-light);
    color: var(--toolkit-dark);
    border: 1px solid var(--toolkit-border);
}

.btn-secondary:hover {
    background: #e9ecef;
}

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

.btn-success:hover {
    background: #218838;
}

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

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--toolkit-dark);
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--toolkit-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: var(--toolkit-secondary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-control:disabled {
    background-color: var(--toolkit-light);
    cursor: not-allowed;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
}

/* Input Groups */
.input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.input-group .form-control {
    flex: 1;
}

/* Cards */
.tool-card {
    background: white;
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 4px 12px var(--toolkit-shadow);
    transition: transform 0.2s ease;
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px var(--toolkit-shadow-lg);
}

.tool-card h3 {
    color: var(--toolkit-primary);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.tool-card p {
    color: #666;
    margin-bottom: 1rem;
    flex-grow: 1;
}

/* Stat Cards */
.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--toolkit-shadow);
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--toolkit-primary);
}

.stat-label {
    color: #666;
    margin-top: 0.5rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35rem 0.65rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

.badge-warning {
    background: var(--toolkit-warning);
    color: var(--toolkit-dark);
}

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

.badge-secondary {
    background: var(--toolkit-light);
    color: var(--toolkit-dark);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-info {
    background: #d1ecf1;
    border-color: #0c5460;
    color: #0c5460;
}

.alert-success {
    background: #d4edda;
    border-color: #155724;
    color: #155724;
}

.alert-warning {
    background: #fff3cd;
    border-color: #856404;
    color: #856404;
}

.alert-danger {
    background: #f8d7da;
    border-color: #721c24;
    color: #721c24;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--toolkit-border);
}

.modal-header h2 {
    color: var(--toolkit-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
}

.modal-close:hover {
    color: var(--toolkit-danger);
}

.modal-body {
    margin-bottom: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 2px solid var(--toolkit-border);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: white;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 12px var(--toolkit-shadow-lg);
    min-width: 300px;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: toastSlideIn 0.3s ease;
}

@keyframes toastSlideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.toast-success {
    border-left: 4px solid var(--toolkit-success);
}

.toast.toast-error {
    border-left: 4px solid var(--toolkit-danger);
}

.toast.toast-info {
    border-left: 4px solid var(--toolkit-secondary);
}

.toast.toast-warning {
    border-left: 4px solid var(--toolkit-warning);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--toolkit-border);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

.tab:hover {
    color: var(--toolkit-primary);
}

.tab.active {
    color: var(--toolkit-primary);
    border-bottom-color: var(--toolkit-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--toolkit-border);
}

.table th {
    background: var(--toolkit-light);
    color: var(--toolkit-dark);
    font-weight: 600;
}

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

.table-striped tbody tr:nth-child(odd) {
    background: #f8f9fa;
}

/* Loading Spinner */
.spinner {
    border: 4px solid var(--toolkit-light);
    border-top: 4px solid var(--toolkit-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

.text-muted {
    color: #6c757d;
}

.text-primary {
    color: var(--toolkit-primary);
}

.text-success {
    color: var(--toolkit-success);
}

.text-danger {
    color: var(--toolkit-danger);
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.p-1 {
    padding: 0.5rem;
}

.p-2 {
    padding: 1rem;
}

.p-3 {
    padding: 1.5rem;
}

.p-4 {
    padding: 2rem;
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.gap-3 {
    gap: 1.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .toolkit-container {
        padding: 1rem;
    }

    .toolkit-header h1 {
        font-size: 2rem;
    }

    .tool-content {
        padding: 1.5rem;
    }

    .tool-grid,
    .tool-grid-3 {
        grid-template-columns: 1fr;
    }

    .modal-content {
        width: 95%;
        padding: 1.5rem;
    }

    .toast-container {
        right: 10px;
        left: 10px;
    }

    .toast {
        min-width: auto;
    }

    .tabs {
        overflow-x: auto;
    }

    .tab {
        white-space: nowrap;
    }
}

/* Category Icons */
.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

/* Search Bar */
.search-bar {
    position: relative;
    margin-bottom: 2rem;
}

.search-bar input {
    padding-left: 3rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #999;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--toolkit-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload:hover {
    border-color: var(--toolkit-primary);
    background: var(--toolkit-light);
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--toolkit-primary);
    margin-bottom: 1rem;
}

/* Progress Bar */
.progress {
    height: 20px;
    background: var(--toolkit-light);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 100%;
    background: var(--toolkit-primary);
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
}

.progress-bar-success {
    background: var(--toolkit-success);
}

.progress-bar-warning {
    background: var(--toolkit-warning);
}

.progress-bar-danger {
    background: var(--toolkit-danger);
}

/* ===================================
   MOBILE RESPONSIVE STYLES
   =================================== */

@media (max-width: 768px) {

    /* Container */
    .toolkit-container {
        padding: 1rem;
    }

    /* Header */
    .toolkit-header h1 {
        font-size: 1.8rem;
    }

    .toolkit-header p {
        font-size: 0.95rem;
    }

    /* Grid Layouts */
    .tool-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .tool-grid-3 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Tool Cards */
    .tool-card {
        padding: 1.25rem;
    }

    .tool-card h3 {
        font-size: 1.1rem;
    }

    /* Buttons */
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .btn-block {
        width: 100%;
    }

    /* Forms */
    .form-control {
        font-size: 16px;
        /* Prevents zoom on iOS */
    }

    /* Tables */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        font-size: 0.85rem;
    }

    /* Calculator */
    .calculator-display {
        font-size: 1.5rem;
        padding: 1rem;
    }

    .calculator-buttons {
        gap: 0.5rem;
    }

    .calc-btn {
        padding: 1rem;
        font-size: 1.1rem;
    }

    /* Tabs */
    .tabs {
        flex-wrap: wrap;
    }

    .tab {
        flex: 1 1 auto;
        min-width: 100px;
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }

    /* Modal */
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
    }

    /* File Upload */
    .file-upload {
        padding: 2rem 1rem;
    }

    /* Cards */
    .card {
        padding: 1rem;
    }

    /* Utility Classes */
    .d-flex {
        flex-wrap: wrap;
    }

    .gap-2 {
        gap: 0.5rem !important;
    }

    /* Hide text on small buttons */
    .btn-sm {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    /* Timetable */
    .timetable-grid {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Chart containers */
    canvas {
        max-width: 100%;
        height: auto !important;
    }

    /* Whiteboard */
    #whiteboardCanvas {
        max-width: 100%;
        height: auto;
    }

    /* Notes sidebar */
    .notes-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--toolkit-border);
    }

    /* Code editor */
    .CodeMirror {
        font-size: 12px;
    }

    /* Search bar */
    .search-bar {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Tool sections */
    .tool-section {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    /* Progress bars */
    .progress {
        height: 25px;
    }

    .progress-bar {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {

    /* Extra small screens */
    .toolkit-header h1 {
        font-size: 1.5rem;
    }

    .toolkit-header p {
        font-size: 0.9rem;
    }

    /* Smaller padding */
    .toolkit-container {
        padding: 0.75rem;
    }

    .tool-content {
        padding: 1rem;
    }

    /* Stack everything */
    .d-flex {
        flex-direction: column;
    }

    .justify-between {
        justify-content: flex-start !important;
    }

    /* Buttons full width on tiny screens */
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    /* Calculator buttons smaller */
    .calc-btn {
        padding: 0.75rem;
        font-size: 1rem;
    }

    /* Smaller modals */
    .modal-content {
        width: 98%;
        padding: 1rem;
    }

    /* Compact cards */
    .card {
        padding: 0.75rem;
    }

    /* Smaller badges */
    .badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .toolkit-header {
        margin-bottom: 1rem;
        padding-bottom: 1rem;
    }

    .toolkit-header h1 {
        font-size: 1.5rem;
    }

    .tool-section {
        margin-bottom: 1rem;
    }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {

    /* Larger touch targets */
    .btn,
    .tool-btn,
    .tab {
        min-height: 44px;
        min-width: 44px;
    }

    /* Larger form inputs */
    .form-control,
    select,
    input[type="text"],
    input[type="number"],
    input[type="email"],
    input[type="date"],
    input[type="time"],
    textarea {
        min-height: 44px;
        font-size: 16px;
    }

    /* Remove hover effects on touch devices */
    .tool-card:hover,
    .btn:hover,
    .tab:hover {
        transform: none;
    }

    /* Larger checkboxes and radio buttons */
    input[type="radio"] {
        width: 20px;
        height: 20px;
    }
}

/* ===================================
   APP SUITE LAYOUTS (Shared)
   =================================== */

.app-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: calc(100vh - 140px);
    gap: 0;
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    margin-top: 2rem;
    border-radius: 12px;
    overflow: hidden;
}

.app-sidebar {
    background: #f8f9fa;
    border-right: 1px solid var(--toolkit-border);
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
}

.sidebar-item {
    padding: 1rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--toolkit-dark);
    transition: all 0.2s;
    font-weight: 500;
    text-decoration: none;
}

.sidebar-item:hover {
    background: #e9ecef;
    color: var(--toolkit-primary);
}

.sidebar-item.active {
    background: var(--toolkit-primary);
    color: white;
}

.app-content {
    padding: 1.5rem;
    overflow-y: auto;
    position: relative;
    background: white;
}

.tool-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tool-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* File Drop Zone */
.drop-zone {
    border: 2px dashed var(--toolkit-border);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s;
    background: #fdfdfd;
    cursor: pointer;
}

.drop-zone:hover {
    border-color: var(--toolkit-primary);
    background: #f0f7ff;
}

.file-icon {
    font-size: 3rem;
    color: var(--toolkit-primary);
    margin-bottom: 1rem;
}

/* Dark Mode Overrides (basic support) */
.dark-theme .app-container {
    background: #1e1e1e;
    color: #e0e0e0;
}

.dark-theme .app-sidebar {
    background: #252526;
    border-color: #333;
}

.dark-theme .sidebar-item {
    color: #cccccc;
}

.dark-theme .sidebar-item:hover {
    background: #2a2d2e;
    color: white;
}

.dark-theme .app-content {
    background: #1e1e1e;
}

.dark-theme .drop-zone {
    background: #252526;
    border-color: #444;
}

.dark-theme .drop-zone:hover {
    background: #2a2d2e;
    border-color: var(--toolkit-primary);
}