/* ==========================================================================
   משתני CSS
   ========================================================================== */
:root {
    /* צבעים ראשיים */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;

    /* רקעים */
    --bg-dark: #1a1a2e;
    --bg-darker: #16213e;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(255, 255, 255, 0.1);

    /* טקסט */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* גבולות וצללים */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);

    /* מצבים */
    --success-color: #34a853;
    --error-color: #ea4335;
    --warning-color: #fbbc05;

    /* מרווחים */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* רדיוס */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;

    /* טרנזישנים */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================================================
   Reset ובסיס
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Heebo', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    direction: rtl;
    overflow-x: hidden;
    max-width: 100vw;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Prevent overflow from any element */
*, *::before, *::after {
    max-width: 100%;
}

table, pre, code {
    overflow-x: auto;
    max-width: 100%;
}

button {
    font-family: inherit;
    cursor: pointer;
}

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

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link i {
    font-size: 1.1rem;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-name {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    padding: var(--spacing-sm);
}

/* ==========================================================================
   כפתורים
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    border: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(102, 126, 234, 0.5);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--text-primary);
}

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

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-logout {
    background: rgba(234, 67, 53, 0.2);
    color: var(--error-color);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
}

.btn-logout:hover {
    background: var(--error-color);
    color: var(--text-primary);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Main Content
   ========================================================================== */
.main-content {
    min-height: calc(100vh - 140px);
    padding-top: 100px;
    padding-bottom: var(--spacing-xxl);
    overflow-x: hidden;
    width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
    box-sizing: border-box;
}

/* ==========================================================================
   כרטיסים (Cards)
   ========================================================================== */
.card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.3);
}

.card-header {
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================================================
   דף הבית - Hero
   ========================================================================== */
.hero {
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   מקצועות
   ========================================================================== */
.subjects-section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.subject-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.subject-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.subject-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.subject-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.subject-count {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

/* ==========================================================================
   טפסים
   ========================================================================== */
.form-container {
    max-width: 450px;
    margin: 0 auto;
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-input::placeholder {
    color: var(--text-muted);
}

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

select.form-input {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
    padding-left: 35px;
}

/* Dropdown options styling */
select.form-input option,
.filter-select option {
    background-color: #1a1a2e;
    color: #ffffff;
    padding: 10px;
}

select.form-input option:hover,
.filter-select option:hover,
select.form-input option:checked,
.filter-select option:checked {
    background-color: #667eea;
    color: #ffffff;
}

.form-error {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

.form-success {
    color: var(--success-color);
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

/* ==========================================================================
   הודעות
   ========================================================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-error {
    background: rgba(234, 67, 53, 0.15);
    border: 1px solid rgba(234, 67, 53, 0.3);
    color: var(--error-color);
}

.alert-success {
    background: rgba(52, 168, 83, 0.15);
    border: 1px solid rgba(52, 168, 83, 0.3);
    color: var(--success-color);
}

.alert-warning {
    background: rgba(251, 188, 5, 0.15);
    border: 1px solid rgba(251, 188, 5, 0.3);
    color: var(--warning-color);
}

/* ==========================================================================
   Dashboard - לוח בקרה
   ========================================================================== */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-title {
    font-size: 1.75rem;
    font-weight: 600;
}

.filters {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    min-width: 150px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
    padding-left: 35px;
    cursor: pointer;
}

.search-box {
    position: relative;
}

.search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 2.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    width: 250px;
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* ==========================================================================
   קבצים (Files Grid)
   ========================================================================== */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.file-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.file-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.file-header {
    padding: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.file-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.file-description {
    padding: 0 var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.file-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-stats {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.file-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==========================================================================
   העלאת קבצים
   ========================================================================== */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.upload-text {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.upload-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.upload-preview {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    display: none;
}

.upload-preview.active {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.preview-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.preview-info {
    flex: 1;
    text-align: right;
}

.preview-name {
    font-weight: 500;
}

.preview-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.preview-remove {
    color: var(--error-color);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* ==========================================================================
   פרופיל - אזור אישי
   ========================================================================== */
.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
}

.profile-info h1 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.profile-info p {
    color: var(--text-secondary);
}

.storage-widget {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.storage-title {
    font-weight: 600;
}

.storage-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.storage-bar {
    height: 12px;
    background: var(--bg-darker);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.storage-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    transition: width var(--transition-slow);
}

.storage-fill.warning {
    background: linear-gradient(135deg, #fbbc05 0%, #ea4335 100%);
}

.storage-fill.danger {
    background: var(--error-color);
}

/* ==========================================================================
   תגובות
   ========================================================================== */
.comments-section {
    margin-top: var(--spacing-xxl);
}

.comments-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.comment-form {
    margin-bottom: var(--spacing-xl);
}

.comment-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    resize: none;
    min-height: 80px;
}

.comment-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.comment-submit {
    margin-top: var(--spacing-md);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.comment {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

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

.comment-author {
    font-weight: 600;
}

.comment-date {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.comment-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

.no-comments {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

/* ==========================================================================
   דף קובץ
   ========================================================================== */
.file-page-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.file-page-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    flex-shrink: 0;
}

.file-page-info h1 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    word-break: break-word;
}

.file-page-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.file-page-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.file-page-description {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.file-page-description h3 {
    margin-bottom: var(--spacing-md);
}

.file-page-description p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-content {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-note {
    margin-top: var(--spacing-sm);
}

.heart {
    color: var(--error-color);
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ==========================================================================
   מצב ריק
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
}

.empty-icon {
    font-size: 5rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.empty-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ==========================================================================
   לודר
   ========================================================================== */
.loader {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 46, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-lg);
    z-index: 9999;
}

/* ==========================================================================
   תגיות (Tags)
   ========================================================================== */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

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

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-darker);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        transition: right var(--transition-normal);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle {
        display: block;
    }

    .nav-user {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
    }

    .hero-title {
        font-size: 2rem;
        word-break: break-word;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .filters {
        width: 100%;
        flex-direction: column;
    }

    .filter-select {
        width: 100%;
        min-width: unset;
        max-width: 100%;
    }

    .search-box {
        width: 100%;
    }

    .search-input {
        width: 100%;
        max-width: 100%;
    }

    .files-grid {
        grid-template-columns: 1fr;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .file-page-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .file-page-meta {
        justify-content: center;
        flex-wrap: wrap;
    }

    .container {
        padding: 0 var(--spacing-md);
        max-width: 100%;
    }

    .card {
        padding: var(--spacing-lg);
        word-break: break-word;
    }

    .file-card {
        max-width: 100%;
    }

    .file-name {
        white-space: normal;
        word-break: break-word;
    }

    .file-header {
        flex-wrap: wrap;
    }

    .file-footer {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .file-stats {
        flex-wrap: wrap;
    }

    .alert {
        flex-wrap: wrap;
        word-break: break-word;
    }

    .form-container {
        max-width: 100%;
        padding: 0 var(--spacing-sm);
    }

    .btn {
        white-space: normal;
        word-break: break-word;
    }

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

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

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .subjects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

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

    .subject-icon {
        font-size: 2rem;
    }

    .subject-name {
        font-size: 0.95rem;
    }

    .upload-area {
        padding: var(--spacing-lg);
    }

    .upload-icon {
        font-size: 3rem;
    }

    .upload-text {
        font-size: 1rem;
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }

    .file-page-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .file-page-info h1 {
        font-size: 1.4rem;
    }

    .dashboard-title {
        font-size: 1.4rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

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

    .nav-logo {
        font-size: 1rem;
    }

    .logo-icon {
        font-size: 1.2rem;
    }
}

/* ==========================================================================
   אנימציות
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.file-card,
.subject-card {
    animation: fadeIn 0.5s ease forwards;
}

.files-grid .file-card:nth-child(1) { animation-delay: 0.1s; }
.files-grid .file-card:nth-child(2) { animation-delay: 0.15s; }
.files-grid .file-card:nth-child(3) { animation-delay: 0.2s; }
.files-grid .file-card:nth-child(4) { animation-delay: 0.25s; }
.files-grid .file-card:nth-child(5) { animation-delay: 0.3s; }
.files-grid .file-card:nth-child(6) { animation-delay: 0.35s; }

/* ==========================================================================
   Utilities
   ========================================================================== */
.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); }
.mt-xl { margin-top: var(--spacing-xl); }

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

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

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }