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

/* ============================================
   استایل عمومی - مینیمال و حرفه‌ای
   ============================================ */
:root {
    --gs-primary: #4361ee;
    --gs-primary-light: #eef2ff;
    --gs-primary-dark: #3a56d4;
    --gs-success: #2ecc71;
    --gs-success-dark: #27ae60;
    --gs-danger: #ef4444;
    --gs-warning: #f59e0b;
    --gs-gray-50: #fafafa;
    --gs-gray-100: #f4f4f5;
    --gs-gray-200: #e4e4e7;
    --gs-gray-300: #d4d4d8;
    --gs-gray-400: #a1a1aa;
    --gs-gray-500: #71717a;
    --gs-gray-600: #52525b;
    --gs-gray-700: #3f3f46;
    --gs-gray-800: #27272a;
    --gs-gray-900: #18181b;
    --gs-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --gs-shadow: 0 4px 24px rgba(0,0,0,0.06);
    --gs-shadow-lg: 0 8px 48px rgba(0,0,0,0.08);
    --gs-radius: 12px;
    --gs-radius-sm: 8px;
    --gs-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.gs-survey-container {
    max-width: 780px;
    margin: 60px auto;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    direction: rtl;
    font-family: 'Vazirmatn', 'Tahoma', Arial, sans-serif;
}

/* ============================================
   هدر - مینیمال
   ============================================ */
.gs-survey-header {
    text-align: center;
    padding: 0 0 32px 0;
    border-bottom: 1px solid var(--gs-gray-200);
    margin-bottom: 32px;
}

.gs-survey-header h2 {
    color: var(--gs-gray-900);
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
}

.gs-survey-header h2 i {
    color: var(--gs-primary);
    margin-left: 10px;
    font-size: 28px;
}

.gs-survey-header p {
    color: var(--gs-gray-500);
    font-size: 15px;
    font-weight: 400;
    margin: 0;
}

/* ============================================
   مراحل - مدرن و مینیمال
   ============================================ */
.gs-step {
    animation: gsFadeIn 0.4s ease forwards;
}

@keyframes gsFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.gs-step-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding: 0;
    background: none;
    border-radius: 0;
}

.gs-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gs-primary);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.gs-step-title h3 {
    margin: 0;
    color: var(--gs-gray-800);
    font-size: 18px;
    font-weight: 600;
}

/* ============================================
   فرم - مینیمال و تمیز
   ============================================ */
.gs-form-group {
    margin-bottom: 20px;
}

.gs-form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--gs-gray-700);
    font-weight: 500;
    font-size: 14px;
}

.gs-form-group .required {
    color: var(--gs-danger);
}

.gs-input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gs-gray-200);
    border-radius: var(--gs-radius-sm);
    font-size: 15px;
    font-family: 'Vazirmatn', 'Tahoma', Arial, sans-serif;
    transition: var(--gs-transition);
    box-sizing: border-box;
    background: var(--gs-gray-50);
    color: var(--gs-gray-800);
}

.gs-input:focus {
    outline: none;
    border-color: var(--gs-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.08);
}

.gs-input::placeholder {
    color: var(--gs-gray-400);
    font-size: 14px;
}

.gs-hint {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: var(--gs-gray-400);
}

/* ============================================
   سوالات - مینیمال با کارت‌های سفید
   ============================================ */
.gs-questions {
    max-height: 560px;
    overflow-y: auto;
    padding-right: 4px;
}

.gs-questions::-webkit-scrollbar {
    width: 4px;
}

.gs-questions::-webkit-scrollbar-track {
    background: var(--gs-gray-100);
    border-radius: 10px;
}

.gs-questions::-webkit-scrollbar-thumb {
    background: var(--gs-gray-300);
    border-radius: 10px;
}

.gs-questions::-webkit-scrollbar-thumb:hover {
    background: var(--gs-gray-400);
}

.gs-question {
    background: #fff;
    padding: 20px 24px;
    border-radius: var(--gs-radius);
    margin-bottom: 12px;
    border: 1px solid var(--gs-gray-200);
    transition: var(--gs-transition);
}

.gs-question:hover {
    border-color: var(--gs-gray-300);
    box-shadow: var(--gs-shadow-sm);
}

.gs-question-text {
    font-weight: 600;
    color: var(--gs-gray-800);
    margin: 0 0 14px 0;
    font-size: 15px;
}

.gs-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}

/* ============================================
   گزینه‌های رادیویی - مدرن
   ============================================ */
.gs-option {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--gs-gray-50);
    padding: 10px 16px;
    border-radius: var(--gs-radius-sm);
    cursor: pointer;
    transition: var(--gs-transition);
    border: 1.5px solid transparent;
}

.gs-option:hover {
    background: var(--gs-primary-light);
    border-color: var(--gs-primary);
}

.gs-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--gs-primary);
}

.gs-option-label {
    font-size: 14px;
    color: var(--gs-gray-700);
    font-weight: 400;
}

/* ============================================
   Textarea - مینیمال
   ============================================ */
.gs-textarea-wrapper {
    width: 100%;
}

.gs-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gs-gray-200);
    border-radius: var(--gs-radius-sm);
    font-size: 15px;
    font-family: 'Vazirmatn', 'Tahoma', Arial, sans-serif;
    transition: var(--gs-transition);
    box-sizing: border-box;
    background: var(--gs-gray-50);
    resize: vertical;
    min-height: 100px;
    color: var(--gs-gray-800);
}

.gs-textarea:focus {
    outline: none;
    border-color: var(--gs-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.08);
}

.gs-textarea::placeholder {
    color: var(--gs-gray-400);
    font-size: 14px;
}

.gs-textarea-wrapper .gs-hint {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: var(--gs-gray-400);
}

/* ============================================
   دکمه‌ها - مینیمال و حرفه‌ای
   ============================================ */
.gs-btn {
    padding: 12px 32px;
    border: none;
    border-radius: var(--gs-radius-sm);
    font-size: 15px;
    font-weight: 600;
    font-family: 'Vazirmatn', 'Tahoma', Arial, sans-serif;
    cursor: pointer;
    transition: var(--gs-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.gs-btn-next {
    background: var(--gs-primary);
    color: #fff;
    float: left;
}

.gs-btn-next:hover {
    background: var(--gs-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(67, 97, 238, 0.25);
}

.gs-btn-prev {
    background: var(--gs-gray-100);
    color: var(--gs-gray-600);
}

.gs-btn-prev:hover {
    background: var(--gs-gray-200);
}

.gs-btn-submit {
    background: var(--gs-success);
    color: #fff;
}

.gs-btn-submit:hover:not(:disabled) {
    background: var(--gs-success-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(46, 204, 113, 0.25);
}

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

.gs-form-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gs-gray-200);
}

/* ============================================
   پیام موفقیت - مینیمال
   ============================================ */
.gs-success-message {
    text-align: center;
    padding: 60px 20px;
}

.gs-success-message i {
    font-size: 72px;
    color: var(--gs-success);
    margin-bottom: 20px;
    animation: gsScaleIn 0.5s ease;
}

@keyframes gsScaleIn {
    from { transform: scale(0.5); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.gs-success-message h3 {
    color: var(--gs-gray-900);
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.gs-success-message p {
    color: var(--gs-gray-500);
    font-size: 16px;
    margin: 0 0 24px 0;
}

.gs-success-message .gs-btn {
    background: var(--gs-primary);
    color: #fff;
    float: none;
}

.gs-success-message .gs-btn:hover {
    background: var(--gs-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(67, 97, 238, 0.25);
}

/* ============================================
   صفحه تشکر - مینیمال
   ============================================ */
.gs-thankyou-container {
    max-width: 520px;
    margin: 60px auto;
    padding: 48px 40px;
    text-align: center;
    background: #fff;
    border-radius: var(--gs-radius);
    box-shadow: var(--gs-shadow-lg);
    border: 1px solid var(--gs-gray-200);
}

.gs-thankyou-box i {
    font-size: 72px;
    color: var(--gs-success);
}

.gs-thankyou-box h2 {
    color: var(--gs-gray-900);
    font-weight: 700;
    margin: 20px 0 10px;
    font-size: 24px;
}

.gs-thankyou-box p {
    color: var(--gs-gray-500);
    font-size: 16px;
}

/* ============================================
   واکنش‌گرا - مینیمال
   ============================================ */
@media (max-width: 768px) {
    .gs-survey-container {
        margin: 30px 16px;
        padding: 24px 20px;
        background: #fff;
        border-radius: var(--gs-radius);
        box-shadow: var(--gs-shadow);
    }
    
    .gs-survey-header h2 {
        font-size: 22px;
    }
    
    .gs-options {
        grid-template-columns: 1fr 1fr;
    }
    
    .gs-form-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .gs-btn {
        width: 100%;
        justify-content: center;
        padding: 14px;
    }
    
    .gs-btn-next {
        float: none;
    }
    
    .gs-question {
        padding: 16px 18px;
    }
    
    .gs-step-title {
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .gs-survey-container {
        margin: 16px 10px;
        padding: 20px 16px;
    }
    
    .gs-survey-header h2 {
        font-size: 20px;
    }
    
    .gs-survey-header p {
        font-size: 14px;
    }
    
    .gs-options {
        grid-template-columns: 1fr;
    }
    
    .gs-step-title {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
    
    .gs-step-number {
        margin: 0;
    }
    
    .gs-question-text {
        font-size: 14px;
    }
    
    .gs-success-message i {
        font-size: 56px;
    }
    
    .gs-success-message h3 {
        font-size: 20px;
    }
}