* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    touch-action: manipulation;
}

.container {
    max-width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 10px;
    background: linear-gradient(135deg, #f9f9f9 0%, #e6e6e6 100%);
}

header {
    text-align: center;
    margin-bottom: 20px;
}

.logo {
    height: 50px;
}

.two-column-layout {
    display: flex;
    height: 100vh;
}

.left-column {
    width: 50%;
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center; 
    background: #fff;
}

.right-column {
    width: 40%;
    padding: 20px;
    /* background: #ff2e0c ; */
    background: #00aa47 ;
    /* background: linear-gradient(135deg, #00aa47 0%, #ff2e0c 100%); */

    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.form-section {
    width: 100%;
    max-width: 400px; /* محدودیت عرض */
    background: white;
    padding: 5px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.input-group {
    margin-bottom: 3px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #333;
}

.touch-input {
    max-height: 15px;
    width: 100%;
    padding: 15px;
    font-size: 18px;
    border: 2px solid #ddd;
    border-radius: 5px;
    text-align: center;
}

.submit-btn {
    width: 100%;
    /* padding: 15px; */
    background-color: #00aa47;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background-color: #45a049;
}

.keypad {
    direction: ltr;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    margin-top: 5px;
    width: 100%;
    max-width: 400px; 
}

.key {
    padding: 4px;
    font-size: 24px;
    background: #fff;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

/* دکمه صفر و بازگشت */
.zero {
}

.backspace {
    grid-column: span 2;

    background: #ff2e0c;
    color: white;
    border-color: #ff2e0c;
}

/* افکت هنگام کلیک */
.key:active {
    transform: scale(0.95);
    background: #eee;
}

.campaign-info {
    text-align: center;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.qr-code {
    width: 150px;
    height: 150px;
    margin: 10px auto;
    display: block;
    border: 1px solid #eee;
}



.campaign-info {
    color: black;
    text-align: center;
    max-width: 300px;
}

.qr-code {
    width: 200px;
    height: 200px;
    margin: 20px auto;
    background: white;
    padding: 10px;
    border-radius: 10px;
}

.prizes {
    background: rgba(255,255,255,0.2);
    padding: 15px;
    border-radius: 10px;
    margin: 15px 0;
}

.instructions {
    text-align: right;
    margin-top: 20px;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .two-column-layout {
        flex-direction: row;
    }
    
    .right-column {
        width: 50%;
        padding: 30px;
    }
}

/* استایل‌های جدید */
.alert {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 15px 30px;
    border-radius: 5px;
    color: white;
    font-weight: bold;
    z-index: 1000;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.success {
    background-color: #4CAF50;
}

.error {
    background-color: #f44336;
}

/* تغییرات برای دکمه در حال ارسال */
.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}