:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #4cc9f0;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --text-color: #2b2d42;
    --light-text: #f8f9fa;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #e9ecef;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --rtl: rtl;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    direction: var(--rtl);
    background-color: var(--light-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 10px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    border: none;
}

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

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

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

.btn.warning {
    background-color: var(--warning-color);
    color: var(--light-text);
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

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

.btn i {
    font-size: 1rem;
}
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

/* Authentication Forms */
.auth-form {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.auth-form h1 {
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

/* Chat Page */
.chat-container {
    max-width: 800px;
    margin: 0 auto;
}

.chat-box {
    border: 1px solid #ddd;
    border-radius: 10px;
    overflow: hidden;
}

.messages {
    height: 500px;
    padding: 20px;
    overflow-y: auto;
    background: #f9f9f9;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 10px;
    max-width: 70%;
}

.message.bot {
    background: #e3f2fd;
    margin-left: auto;
}

.message.user {
    background: #bbdefb;
    margin-right: auto;
}

.input-area {
    display: flex;
    padding: 15px;
    background: white;
    border-top: 1px solid #ddd;
}

.input-area input {
    flex-grow: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px 0 0 5px;
}

.input-area button {
    border-radius: 0 5px 5px 0;
}

/* Materials Page */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.material-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.material-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

/* Announcements Page */
.announcements-list {
    max-width: 800px;
    margin: 0 auto;
}

.announcement-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.announcement-card .date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

/* About Page */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.team-member {
    text-align: center;
}

.team-member img {
    width: 100%;
    height: auto;
    border-radius: 50%;
    margin-bottom: 15px;
}

/* Contact Page */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.contact-info {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-info i {
    margin-left: 10px;
    color: var(--accent-color);
}

.contact-form {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}
/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 500;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 9999;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

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

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

.toast-warning {
    background-color: var(--warning-color);
}

/* Loading Spinner */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}