/* Reset و فونت */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
@font-face {
  font-family: 'titr';
  src: url('fonts/B Titr Bold_0.ttf') format('ttf');
}
@font-face {
  font-family: 'iran';
  src: url('fonts/fa-Iran-sans-web-bold.woff2') format('woff2');
}
@font-face {
  font-family: 'vazir';
  src: url('fonts/Vazirmatn-Bold.woff2') format('woff2');
}

:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --accent: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #e74c3c;
    --gray: #7f8c8d;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* بخش اصلی */
main {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

/* پیام‌های سیستم */
.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    font-weight: 500;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow);
    animation: slideIn 0.5s ease;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-right: 5px solid var(--success);
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-right: 5px solid var(--danger);
}

.alert i {
    margin-left: 10px;
    font-size: 1.2rem;
}

/* بخش ثبت نام */
.seller-register-section {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
    animation: fadeIn 0.8s ease;
    position: relative;
    overflow: hidden;
}

.seller-register-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 50%;
    transform: translateX(50%);
    width: 100px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

/* فرم */
form {
    margin-top: 20px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
}

.form-group label::after {
    content: '*';
    color: var(--danger);
    margin-right: 5px;
    display: inline;
}

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-family: 'Vazir', Tahoma, sans-serif;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-control:focus {
            border-color: #1e3c72;
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.1);
        }
        
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }
        
        input[type="file"] {
            padding: 8px;
        }
/* دکمه */
.btn {
    display: inline-block;
    padding: 15px 30px;
    background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
}

.btn:active {
    transform: translateY(-1px);
}

.btn-block {
    display: block;
    width: 100%;
    margin-top: 20px;
}


/* انیمیشن‌ها */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* رسپانسیو */
@media (max-width: 992px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .seller-register-section {
        padding: 25px 20px;
    }
    
    .section-title {
        font-size: 1.7rem;
    }
    
    .btn {
        padding: 12px 25px;
    }
}