/* فونت فارسی */
@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700&display=swap');

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

/* متغیرهای CSS */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --accent-secondary: #f5576c;
    --success-color: #4ade80;
    --error-color: #f87171;
    --text-dark: #2d3748;
    --text-light: #4a5568;
    --white: #ffffff;
    --shadow-light: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-medium: 0 20px 40px rgba(0,0,0,0.1);
    --shadow-heavy: 0 25px 50px rgba(0,0,0,0.2);
    --border-radius: 20px;
    --border-radius-small: 15px;
    --transition: all 0.3s ease;
}

/* استایل‌های پایه */
body {
    font-family: 'Vazirmatn', sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.6;
}

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

/* هدر */
.header {
    text-align: center;
    margin-bottom: 50px;
    color: var(--white);
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInDown 1s ease;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.3s both;
}

/* بخش ویژگی‌ها */
.features-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
    animation: slideInUp 1s ease 0.5s both;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--text-dark);
    font-weight: 600;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding: 30px;
    border-radius: var(--border-radius-small);
    text-align: center;
    transition: var(--transition);
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.feature-card:hover::before {
    left: 100%;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* بخش قیمت‌گذاری */
.pricing-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
    animation: slideInUp 1s ease 0.7s both;
}

.pricing-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-dark);
    font-weight: 600;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.pricing-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.pricing-card:hover::after {
    transform: translateX(100%);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.pricing-card.popular {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-secondary) 100%);
    transform: scale(1.05);
}

.pricing-card.popular::before {
    content: "محبوب";
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--error-color);
    color: var(--white);
    padding: 8px 40px;
    transform: rotate(45deg);
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 1;
}

.plan-name {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.plan-price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.plan-duration {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.plan-features {
    list-style: none;
    margin-bottom: 30px;
}

.plan-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    transition: var(--transition);
}

.plan-features li:hover {
    background: rgba(255,255,255,0.1);
    padding-right: 10px;
    border-radius: 5px;
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features i {
    margin-left: 10px;
    color: var(--success-color);
}

/* دکمه اشتراک */
.subscribe-btn {
    background: rgba(255,255,255,0.2);
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.subscribe-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.subscribe-btn:hover::before {
    width: 300px;
    height: 300px;
}

.subscribe-btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

/* پیام‌ها */
.loading {
    display: none;
    text-align: center;
    padding: 20px;
    color: var(--white);
    font-size: 1.1rem;
}

.loading i {
    margin-left: 10px;
    animation: spin 1s linear infinite;
}

.success-message {
    display: none;
    background: var(--success-color);
    color: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
    text-align: center;
    animation: slideInDown 0.5s ease;
}

.error-message {
    display: none;
    background: var(--error-color);
    color: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
    text-align: center;
    animation: slideInDown 0.5s ease;
}

/* فوتر */
.footer {
    text-align: center;
    margin-top: 50px;
    color: var(--white);
    opacity: 0.8;
}

/* انیمیشن‌ها */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ریسپانسیو */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .features-section,
    .pricing-section {
        padding: 20px;
    }
    
    .plan-price {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .features-section h2,
    .pricing-section h2 {
        font-size: 2rem;
    }
    
    .feature-card,
    .pricing-card {
        padding: 20px;
    }
}

/* حالت تاریک (اختیاری) */


/* انیمیشن‌های اضافی */
.animate-success {
    animation: pulse 0.6s ease-in-out;
}

.animate-error {
    animation: shake 0.6s ease-in-out;
}

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

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

/* Toast notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--white);
    color: var(--text-dark);
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-medium);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 300px;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-right: 4px solid var(--success-color);
}

.toast-error {
    border-right: 4px solid var(--error-color);
}

.toast-info {
    border-right: 4px solid var(--primary-color);
}

/* Thank you message */
.thank-you-message {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.thank-you-message.show {
    opacity: 1;
}

.thank-you-content {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    max-width: 400px;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.thank-you-message.show .thank-you-content {
    transform: scale(1);
}

.thank-you-content i {
    font-size: 3rem;
    color: var(--accent-secondary);
    margin-bottom: 20px;
}

.thank-you-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.thank-you-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.thank-you-content button {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 10px 30px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
}

.thank-you-content button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Ripple effect */
.subscribe-btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Success state for buttons */
.subscribe-btn.success {
    background: var(--success-color);
    border-color: var(--success-color);
    cursor: not-allowed;
}

.subscribe-btn.success:hover {
    background: var(--success-color);
    border-color: var(--success-color);
    transform: none;
}

/* Loading animation improvements */
.loading {
    background: rgba(0, 0, 0, 0.8);
    border-radius: var(--border-radius);
    margin: 20px auto;
    max-width: 300px;
}

/* فرم اطلاعات کاربر */
.user-form-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.user-form-modal.show {
    opacity: 1;
    visibility: visible;
}

.user-form-content {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.user-form-modal.show .user-form-content {
    transform: scale(1);
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
}

.form-header h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--error-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: 'Vazirmatn', sans-serif;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-help {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: #6b7280;
    font-style: italic;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.cancel-btn, .submit-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Vazirmatn', sans-serif;
}

.cancel-btn {
    background: #e2e8f0;
    color: var(--text-dark);
}

.cancel-btn:hover {
    background: #cbd5e0;
}

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

.submit-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* پیام خطا در مودال */
.modal-error {
    background: #fee2e2;
    border: 2px solid #fecaca;
    color: #dc2626;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    animation: shake 0.6s ease-in-out;
}

.modal-error i {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.modal-error span {
    line-height: 1.4;
}

/* Responsive improvements */
@media (max-width: 480px) {
    .toast {
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .thank-you-content {
        margin: 20px;
        padding: 30px 20px;
    }
    
    .user-form-content {
        padding: 30px 20px;
        margin: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
}