/* Professional Forms System - EduGlobal LMS */
/* Light Theme - Consistent with Site Design */

/* =================================
   FORM VARIABLES
   ================================= */

:root {
    /* Form Colors */
    --form-border: #d1d5db;
    --form-border-hover: #9ca3af;
    --form-border-focus: #3b82f6;
    --form-background: #ffffff;
    --form-background-secondary: #f9fafb;
    --form-text: #111827;
    --form-placeholder: #9ca3af;
    --form-label: #374151;
    --form-success: #10b981;
    --form-error: #ef4444;
    
    /* State Colors */
    --form-success-bg: #d1fae5;
    --form-success-border: #6ee7b7;
    --form-error-bg: #fee2e2;
    --form-error-border: #fca5a5;
    --form-warning: #f59e0b;
    --form-warning-bg: #fef3c7;
    --form-warning-border: #fde68a;
    
    /* Form Measurements */
    --form-radius: 8px;
    --form-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --form-shadow-focus: 0 0 0 3px rgba(59, 130, 246, 0.1);
    --form-shadow-error: 0 0 0 3px rgba(239, 68, 68, 0.1);
    --form-shadow-success: 0 0 0 3px rgba(16, 185, 129, 0.1);
    
    /* Spacing */
    --form-spacing: 1rem;
    --form-spacing-small: 0.75rem;
    --form-padding-x: 1rem;
    --form-padding-y: 0.75rem;
    
    /* Typography */
    --form-font-size: 1rem;
    --form-font-size-small: 0.875rem;
    --form-line-height: 1.5;
}

/* =================================
   FORM CONTAINERS
   ================================= */

.form-container {
    max-width: 32rem;
    margin: 0 auto;
    padding: 2rem;
    background: var(--form-background);
    border-radius: 12px;
    box-shadow: var(--form-shadow);
    border: 1px solid #e5e7eb;
}

.form-container-large {
    max-width: 42rem;
}

.form-container-small {
    max-width: 24rem;
    padding: 1.5rem;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h1,
.form-header h2 {
    color: var(--form-text);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: #6b7280;
    margin-bottom: 0;
}

/* =================================
   FORM GROUPS & FIELDS
   ================================= */

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

.form-group-inline {
    display: flex;
    gap: var(--form-spacing);
}

.form-group-inline .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--form-spacing);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-group-inline {
        flex-direction: column;
    }
}

/* =================================
   LABELS - FLOATING & TRADITIONAL
   ================================= */

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--form-label);
    margin-bottom: 0.5rem;
    transition: color 0.2s ease;
}

.form-label-required::after {
    content: " *";
    color: var(--form-error);
}

/* Floating Label System */
.form-floating {
    position: relative;
}

.form-floating .form-input {
    padding-top: 1.5rem;
    padding-bottom: 0.5rem;
}

.form-floating .form-label {
    position: absolute;
    top: 0;
    left: var(--form-padding-x);
    height: 100%;
    padding: var(--form-padding-y) 0;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    margin-bottom: 0;
    font-size: var(--form-font-size);
    color: var(--form-placeholder);
}

.form-floating .form-input:focus ~ .form-label,
.form-floating .form-input:not(:placeholder-shown) ~ .form-label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    color: var(--form-label-focus);
}

/* =================================
   INPUT FIELDS
   ================================= */

.form-input,
.form-select,
.form-textarea {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--form-text);
    background-color: var(--form-background);
    border: 1px solid var(--form-border);
    border-radius: var(--form-radius);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, background-color 0.15s ease-in-out;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--form-placeholder);
    opacity: 1;
}

/* Focus States */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 0;
    border-color: var(--form-border-focus);
    box-shadow: var(--form-shadow-focus);
    background-color: var(--form-background);
}

/* Hover States */
.form-input:hover:not(:focus),
.form-select:hover:not(:focus),
.form-textarea:hover:not(:focus) {
    border-color: var(--form-border-hover);
}

/* Disabled States */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background-color: #f9fafb;
    border-color: #e5e7eb;
    color: #9ca3af;
    cursor: not-allowed;
    opacity: 0.6;
}

/* =================================
   SPECIFIC INPUT TYPES
   ================================= */

/* Textarea */
.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-textarea-small {
    min-height: 80px;
}

.form-textarea-large {
    min-height: 180px;
}

/* Select Dropdowns */
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 1rem center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    padding-right: 2.5rem;
    appearance: none;
}

.form-select:focus {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%233b82f6' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

/* File Inputs */
.form-file {
    padding: 0.375rem 0;
    background: transparent;
    border: none;
    box-shadow: none;
}

.form-file:focus {
    box-shadow: var(--form-shadow-focus);
    border-radius: var(--form-radius);
}

/* =================================
   CHECKBOXES & RADIOS
   ================================= */

.form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    margin-top: 0.25rem;
    border: 1px solid var(--form-border);
    border-radius: 4px;
    cursor: pointer;
    background-color: var(--form-background);
    transition: all 0.15s ease-in-out;
}

.form-check-input:focus {
    outline: 0;
    border-color: var(--form-border-focus);
    box-shadow: var(--form-shadow-focus);
}

.form-check-input:checked {
    background-color: var(--form-border-focus);
    border-color: var(--form-border-focus);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3e%3cpath fill-rule='evenodd' d='M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z' clip-rule='evenodd'/%3e%3c/svg%3e");
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='white'/%3e%3c/svg%3e");
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--form-label);
    cursor: pointer;
    line-height: 1.5;
}

/* =================================
   FORM BUTTONS
   ================================= */

.form-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: #ffffff;
    background-color: var(--form-border-focus);
    border: 1px solid var(--form-border-focus);
    border-radius: var(--form-radius);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    transition: all 0.15s ease-in-out;
    cursor: pointer;
    text-decoration: none;
    min-height: 44px;
}

.form-button:hover:not(:disabled) {
    background-color: #2563eb;
    border-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.form-button:focus {
    outline: 0;
    box-shadow: var(--form-shadow-focus);
}

.form-button:active {
    transform: translateY(0);
}

.form-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-button-full {
    width: 100%;
}

.form-button-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    min-height: 48px;
}

.form-button-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

/* Button Variants */
.form-button-secondary {
    color: var(--form-text);
    background-color: var(--form-background-secondary);
    border-color: var(--form-border);
}

.form-button-secondary:hover:not(:disabled) {
    background-color: #e5e7eb;
    border-color: var(--form-border-hover);
    color: var(--form-text);
}

.form-button-outline {
    color: var(--form-border-focus);
    background-color: transparent;
    border-color: var(--form-border-focus);
}

.form-button-outline:hover:not(:disabled) {
    color: #ffffff;
    background-color: var(--form-border-focus);
}

.form-button-success {
    background-color: var(--form-success);
    border-color: var(--form-success);
}

.form-button-success:hover:not(:disabled) {
    background-color: #059669;
    border-color: #059669;
}

.form-button-danger {
    background-color: var(--form-error);
    border-color: var(--form-error);
}

.form-button-danger:hover:not(:disabled) {
    background-color: #dc2626;
    border-color: #dc2626;
}

/* =================================
   VALIDATION STATES
   ================================= */

/* Success State */
.form-group.has-success .form-input,
.form-group.has-success .form-select,
.form-group.has-success .form-textarea {
    border-color: var(--form-success-border);
    background-color: var(--form-success-bg);
}

.form-group.has-success .form-input:focus,
.form-group.has-success .form-select:focus,
.form-group.has-success .form-textarea:focus {
    border-color: var(--form-success);
    box-shadow: var(--form-shadow), var(--form-shadow-success);
}

.form-group.has-success .form-label {
    color: var(--form-success);
}

/* Error State */
.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
    border-color: var(--form-error-border);
    background-color: var(--form-error-bg);
}

.form-group.has-error .form-input:focus,
.form-group.has-error .form-select:focus,
.form-group.has-error .form-textarea:focus {
    border-color: var(--form-error);
    box-shadow: var(--form-shadow), var(--form-shadow-error);
}

.form-group.has-error .form-label {
    color: var(--form-error);
}

/* Warning State */
.form-group.has-warning .form-input,
.form-group.has-warning .form-select,
.form-group.has-warning .form-textarea {
    border-color: var(--form-warning-border);
    background-color: var(--form-warning-bg);
}

.form-group.has-warning .form-input:focus,
.form-group.has-warning .form-select:focus,
.form-group.has-warning .form-textarea:focus {
    border-color: var(--form-warning);
    box-shadow: var(--form-shadow), 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.form-group.has-warning .form-label {
    color: var(--form-warning);
}

/* =================================
   FEEDBACK MESSAGES
   ================================= */

.form-feedback {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    line-height: 1.4;
}

.form-feedback-success {
    color: var(--form-success);
}

.form-feedback-error {
    color: var(--form-error);
}

.form-feedback-warning {
    color: var(--form-warning);
}

.form-feedback-info {
    color: var(--form-label);
}

/* =================================
   FORM SECTIONS & FIELDSETS
   ================================= */

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--form-text);
    margin-bottom: 1rem;
}

.form-fieldset {
    border: 1px solid var(--form-border);
    border-radius: var(--form-radius);
    padding: 1.5rem;
    margin-bottom: var(--form-spacing);
}

.form-legend {
    font-weight: 600;
    color: var(--form-text);
    padding: 0 0.5rem;
    margin-bottom: 1rem;
}

/* =================================
   FORM ALERTS & NOTIFICATIONS
   ================================= */

.form-alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--form-radius);
    font-size: 0.875rem;
}

.form-alert-success {
    color: #065f46;
    background-color: #d1fae5;
    border-color: #6ee7b7;
}

.form-alert-error {
    color: #991b1b;
    background-color: #fee2e2;
    border-color: #fca5a5;
}

.form-alert-warning {
    color: #92400e;
    background-color: #fef3c7;
    border-color: #fde68a;
}

.form-alert-info {
    color: #1e40af;
    background-color: #dbeafe;
    border-color: #93c5fd;
}

/* =================================
   FORM UTILITIES
   ================================= */

.form-text {
    margin-top: 0.25rem;
    font-size: var(--form-font-size-small);
    color: var(--form-label);
}

.form-required {
    color: var(--form-error);
}

.form-optional {
    color: var(--form-placeholder);
    font-style: italic;
}

/* Loading State */
.form-loading {
    position: relative;
    pointer-events: none;
}

.form-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--form-border-focus);
    border-radius: 50%;
    animation: form-spin 1s linear infinite;
}

@keyframes form-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =================================
   RESPONSIVE DESIGN
   ================================= */

@media (max-width: 640px) {
    .form-container {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .form-container-small {
        padding: 1.25rem;
    }
    
    .form-input,
    .form-select,
    .form-textarea,
    .form-button {
        padding: 0.875rem 1rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
}

/* =================================
   ACCESSIBILITY ENHANCEMENTS
   ================================= */

@media (prefers-reduced-motion: reduce) {
    .form-input,
    .form-select,
    .form-textarea,
    .form-button,
    .form-check-input {
        transition-duration: 0.01ms;
    }
    
    .form-loading::after {
        animation: none;
    }
}

@media (prefers-contrast: high) {
    :root {
        --form-border: #000000;
        --form-border-focus: #0000ff;
        --form-text: #000000;
        --form-label: #000000;
        --form-success: #008000;
        --form-error: #ff0000;
        --form-warning: #ff8000;
    }
}

/* Focus visible for keyboard navigation */
.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible,
.form-button:focus-visible,
.form-check-input:focus-visible {
    outline: 2px solid var(--form-border-focus);
    outline-offset: 2px;
}

/* =================================
   DARK MODE SUPPORT (OPTIONAL)
   ================================= */

@media (prefers-color-scheme: dark) {
    :root {
        --form-background: #1f2937;
        --form-background-focus: #1f2937;
        --form-border: #4b5563;
        --form-border-hover: #6b7280;
        --form-text: #f9fafb;
        --form-placeholder: #9ca3af;
        --form-label: #d1d5db;
    }
    
    .form-container {
        background: var(--form-background);
        border-color: var(--form-border);
    }
    
    .form-button-secondary {
        background-color: #374151;
        border-color: #4b5563;
        color: #f9fafb;
    }
    
    .form-button-secondary:hover:not(:disabled) {
        background-color: #4b5563;
        border-color: #6b7280;
    }
}

/* Page Layout Consistency */
.min-h-screen {
    background-color: #f9fafb !important;
}

/* Ensure consistent spacing for auth pages */
.auth-page {
    background-color: #f9fafb;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

/* Contact page consistency */
.contact-page {
    background-color: #f9fafb;
    padding: 4rem 0;
}

.contact-page .form-container {
    background: var(--form-background);
    box-shadow: var(--form-shadow);
}

/* =================================
   FORCE LIGHT THEME CONSISTENCY
   ================================= */

/* Override any dark theme rules to ensure consistent light design */
.form-container {
    background: #ffffff !important;
    color: #111827 !important;
    border: 1px solid #e5e7eb !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06) !important;
}

.form-header h1,
.form-header h2,
.form-header h3 {
    color: #111827 !important;
}

.form-header p {
    color: #6b7280 !important;
}

.form-label {
    color: #374151 !important;
}

.form-input,
.form-select,
.form-textarea {
    background-color: #ffffff !important;
    color: #111827 !important;
    border-color: #d1d5db !important;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #9ca3af !important;
}

/* Ensure consistent button styling */
.form-button-secondary {
    background-color: #f9fafb !important;
    color: #111827 !important;
    border-color: #d1d5db !important;
}

.form-button-secondary:hover:not(:disabled) {
    background-color: #e5e7eb !important;
    color: #111827 !important;
}

/* Ensure alert text is readable */
.form-alert {
    background-color: #f9fafb !important;
    color: #111827 !important;
    border: 1px solid #e5e7eb !important;
}

.form-alert-success {
    background-color: #d1fae5 !important;
    color: #065f46 !important;
    border-color: #6ee7b7 !important;
}

.form-alert-error {
    background-color: #fee2e2 !important;
    color: #991b1b !important;
    border-color: #fca5a5 !important;
}

/* =================================
   RESPONSIVE COURSE FORM ENHANCEMENTS
   ================================= */

/* Mobile optimizations for course creation */
@media (max-width: 768px) {
    .form-container-large {
        padding: 1rem;
        margin: 0.5rem;
        max-width: none;
    }
    
    .form-header h2 {
        font-size: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    /* Better touch targets */
    .form-input,
    .form-textarea,
    .form-select {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 0.875rem 1rem;
        min-height: 44px; /* Touch-friendly */
    }
    
    .form-button {
        min-height: 48px;
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
    
    /* Mobile character counters */
    .form-text {
        font-size: 0.8rem;
        line-height: 1.3;
    }
    
    /* Image preview responsive */
    #image-preview .w-full {
        height: 200px;
    }
}

/* Tablet optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .form-container-large {
        max-width: 90%;
        padding: 2rem;
    }
    
    .form-row {
        gap: 1.5rem;
    }
    
    /* Better spacing for tablets */
    .form-group {
        margin-bottom: 1.75rem;
    }
}

/* Desktop optimizations */
@media (min-width: 1025px) {
    .form-container-large {
        max-width: 48rem;
    }
    
    /* Grid layout for larger screens */
    .course-form-grid {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 2rem;
        max-width: 80rem;
        margin: 0 auto;
    }
    
    .course-form-main {
        min-width: 0; /* Prevents grid overflow */
    }
    
    .course-form-sidebar {
        min-width: 0;
    }
}

/* Enhanced form sections */
.form-section {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-section-title {
    margin-bottom: 1rem;
}

.form-section-title h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.25rem;
}

.form-section-title p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

/* Publishing section styles */
.publishing-section {
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
    border: 1px solid #93c5fd;
}

.publishing-section.published {
    background: linear-gradient(135deg, #d1fae5 0%, #ecfdf5 100%);
    border: 1px solid #6ee7b7;
}

/* Mobile-optimized publishing controls */
@media (max-width: 640px) {
    .publishing-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .publishing-checkbox-container {
        padding: 0.875rem;
        min-height: 48px; /* Touch-friendly */
    }
    
    .publishing-checkbox-container label {
        font-size: 0.875rem;
        line-height: 1.4;
        cursor: pointer;
    }
    
    .publishing-checkbox-container input[type="checkbox"] {
        width: 1.25rem;
        height: 1.25rem;
        margin-left: 0.75rem;
        flex-shrink: 0;
    }
    
    /* Full-width buttons on mobile */
    .publishing-actions button {
        width: 100%;
        justify-content: center;
        min-height: 48px;
        font-size: 0.9rem;
        padding: 0.75rem 1rem;
    }
    
    /* Status indicator mobile styling */
    .publishing-status-mobile {
        text-align: center;
        font-size: 0.8rem;
        padding: 0.5rem;
        border-radius: 0.5rem;
        background: rgba(255, 255, 255, 0.8);
    }
}

/* Tablet improvements */
@media (min-width: 641px) and (max-width: 1024px) {
    .publishing-checkbox-container {
        padding: 0.75rem 1rem;
    }
    
    .publishing-actions {
        flex-direction: row;
        justify-content: flex-start;
    }
}

/* Enhanced checkbox styling */
.form-check-input {
    transition: all 0.2s ease;
    cursor: pointer;
}

.form-check-input:hover {
    transform: scale(1.05);
    border-color: #3b82f6;
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    border-color: #3b82f6;
}

.form-check-input:checked {
    background-color: #3b82f6;
    border-color: #3b82f6;
}

.form-check-input:checked:hover {
    background-color: #2563eb;
    border-color: #2563eb;
}

/* Character counter enhancements */
.char-counter {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    transition: all 0.2s ease;
}

.char-counter.warning {
    color: #f59e0b;
    font-weight: 600;
}

.char-counter.danger {
    color: #ef4444;
    font-weight: 700;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Form tips and sidebar */
.form-tips {
    background: #fefce8;
    border: 1px solid #fde68a;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.form-tips h3 {
    color: #92400e;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.form-tips .tip-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    line-height: 1.4;
}

.form-tips .tip-item:last-child {
    margin-bottom: 0;
}

.form-tips .tip-icon {
    flex-shrink: 0;
    font-size: 1rem;
}

.form-tips .tip-content strong {
    color: #78350f;
    font-weight: 600;
}

/* Course status indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-indicator.published {
    background: #d1fae5;
    color: #065f46;
}

.status-indicator.draft {
    background: #f3f4f6;
    color: #4b5563;
}

.status-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.published {
    background: #10b981;
}

.status-dot.draft {
    background: #9ca3af;
}

/* Image preview enhancements */
.image-preview-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.image-preview-container:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.image-preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
    pointer-events: none;
}

/* Lesson management responsive */
.lesson-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 0.75rem;
    transition: all 0.2s ease;
}

.lesson-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
}

.lesson-item-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.lesson-number {
    width: 2rem;
    height: 2rem;
    background: #dbeafe;
    color: #1e40af;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.lesson-title {
    font-weight: 500;
    color: #111827;
    margin: 0;
}

.lesson-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

@media (max-width: 640px) {
    .lesson-item {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .lesson-item-info {
        justify-content: center;
    }
    
    .lesson-actions {
        justify-content: center;
    }
}

/* Enhanced animations */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.scale-in {
    animation: scaleIn 0.2s ease-out;
}

@keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Focus states for accessibility */
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

.form-button:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .form-section {
        border-width: 2px;
    }
    
    .status-indicator {
        border: 1px solid currentColor;
    }
    
    .lesson-item {
        border-width: 2px;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .char-counter,
    .image-preview-container,
    .lesson-item {
        transition: none;
    }
    
    .fade-in,
    .scale-in {
        animation: none;
    }
    
    .char-counter.danger {
        animation: none;
    }
}

/* Form Controls */
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    background-color: white;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background-color: #f9fafb;
    color: #6b7280;
    cursor: not-allowed;
}

/* Form Labels */
.form-label {
    display: block;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
}

.form-label-required::after {
    content: " *";
    color: #ef4444;
}

/* Form Groups and Layout */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

/* Form Text and Help */
.form-text {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

.form-feedback {
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.form-feedback-error {
    color: #dc2626;
}

.form-feedback-success {
    color: #059669;
}

/* Form Buttons */
.form-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.15s ease-in-out;
    cursor: pointer;
    border: none;
    text-decoration: none;
    font-size: 0.875rem;
}

.form-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-button-large {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
}

.form-button-small {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.form-button-full {
    width: 100%;
}

.form-button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Primary Button */
.form-button {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.form-button:hover:not(:disabled) {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
}

/* Secondary Button */
.form-button-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
}

.form-button-secondary:hover:not(:disabled) {
    background: #e5e7eb;
    border-color: #9ca3af;
}

/* Success Button */
.form-button-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.form-button-success:hover:not(:disabled) {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
}

/* Danger Button */
.form-button-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.form-button-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

/* Form Containers */
.form-container {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.form-container-large {
    padding: 2.5rem;
}

.form-container-small {
    padding: 1.5rem;
}

.form-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e5e7eb;
}

/* Form Alerts */
.form-alert {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid;
}

.form-alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.form-alert-error {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.form-alert-warning {
    background-color: #fffbeb;
    border-color: #fed7aa;
    color: #92400e;
}

.form-alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

/* Form Sections */
.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f9fafb;
    border-radius: 0.5rem;
    border: 1px solid #e5e7eb;
}

.form-section-title h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.25rem;
}

.form-section-title p {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

/* Radio and Checkbox Styles */
.form-radio,
.form-check-input {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    accent-color: #3b82f6;
}

.form-check-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.875rem;
    color: #374151;
}

/* Image Upload Styles */
.upload-method-section {
    transition: all 0.3s ease-in-out;
}

.upload-method-section.hidden {
    display: none;
}

/* Upload Dropzone */
#upload-dropzone {
    position: relative;
    transition: all 0.2s ease-in-out;
    background-color: #fafafa;
}

#upload-dropzone:hover {
    border-color: #3b82f6 !important;
    background-color: #f0f7ff;
}

#upload-dropzone.dragover {
    border-color: #3b82f6;
    background-color: #dbeafe;
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

#upload-dropzone.dragover svg {
    color: #3b82f6;
    animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Upload States */
#upload-progress {
    text-align: center;
    animation: fadeIn 0.3s ease-in-out;
}

#upload-progress-bar {
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    transition: width 0.3s ease-out;
}

#upload-success {
    color: #10b981;
    animation: successPulse 0.5s ease-in-out;
}

#upload-error {
    color: #ef4444;
    animation: errorShake 0.5s ease-in-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Image Preview Styles */
.image-preview-container {
    position: relative;
}

.image-preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg, 
        rgba(59, 130, 246, 0.1) 0%, 
        rgba(29, 78, 216, 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    border-radius: 0.5rem;
}

.image-preview-container:hover .image-preview-overlay {
    opacity: 1;
}

#image-preview img {
    transition: transform 0.3s ease-in-out;
}

.image-preview-container:hover img {
    transform: scale(1.02);
}

/* Preview Actions */
#remove-image {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease-in-out;
}

.image-preview-container:hover #remove-image {
    opacity: 1;
    transform: scale(1);
}

#remove-image:hover {
    background-color: #dc2626 !important;
    transform: scale(1.1);
}

/* Image Info */
#image-info {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#image-filename {
    font-weight: 500;
    color: #374151;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 60%;
}

#image-size {
    font-weight: 400;
    color: #6b7280;
    font-size: 0.75rem;
}

/* Upload Animation */
@keyframes uploadPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.uploading {
    animation: uploadPulse 1.5s ease-in-out infinite;
}

/* Responsive Design */
@media (max-width: 640px) {
    .form-container {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .form-container-large {
        padding: 1.5rem;
    }
    
    .form-button-large {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
    
    #upload-dropzone {
        padding: 2rem 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

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

/* Focus indicators for accessibility */
.form-input:focus,
.form-textarea:focus,
.form-select:focus,
.form-button:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .form-input,
    .form-textarea,
    .form-select {
        border-width: 2px;
    }
    
    .form-button {
        border: 2px solid;
    }
}

/* Print styles */
@media print {
    .form-button,
    #upload-dropzone,
    .form-alert {
        display: none;
    }
    
    .form-input,
    .form-textarea,
    .form-select {
        border: 1px solid #000;
        background: transparent;
    }
}

/* Enhanced drag and drop styling */
#upload-dropzone.dragover {
    border-color: #3b82f6;
    background-color: #dbeafe;
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

#upload-dropzone.dragover svg {
    color: #3b82f6;
    animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Enhanced button animations */
.form-button {
    position: relative;
    overflow: hidden;
}

.form-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.form-button:hover::before {
    left: 100%;
}

.form-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-button:disabled::before {
    display: none;
}

/* Loading animation for form submission */
.form-button.loading {
    color: transparent;
}

.form-button.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Enhanced upload states */
#upload-progress {
    animation: fadeIn 0.3s ease-in-out;
}

#upload-success {
    animation: successPulse 0.5s ease-in-out;
}

#upload-error {
    animation: errorShake 0.5s ease-in-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Image preview enhancements */
#image-preview {
    animation: slideIn 0.3s ease-in-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Character counter animation */
.char-counter.warning {
    animation: warningPulse 2s ease-in-out infinite;
}

.char-counter.danger {
    animation: dangerPulse 1s ease-in-out infinite;
}

@keyframes warningPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes dangerPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Form validation visual feedback */
.form-input.error {
    border-color: #ef4444;
    background-color: #fef2f2;
    animation: inputShake 0.5s ease-in-out;
}

@keyframes inputShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

.form-input.success {
    border-color: #10b981;
    background-color: #f0fdf4;
}

/* Enhanced mobile responsiveness */
@media (max-width: 640px) {
    #upload-dropzone {
        padding: 2rem 1rem;
    }
    
    .form-button-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .char-counter {
        font-size: 0.75rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    #upload-dropzone {
        border-width: 2px;
    }
    
    #upload-dropzone.dragover {
        border-width: 3px;
    }
    
    .form-button {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    #upload-dropzone.dragover {
        transform: none;
        animation: none;
    }
    
    .form-button::before {
        display: none;
    }
    
    .char-counter.warning,
    .char-counter.danger {
        animation: none;
    }
    
    #image-preview {
        animation: none;
    }
}