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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 800px;
    min-height: 600px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 2.8em;
    font-weight: 300;
}

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

label {
    display: block;
    margin-bottom: 10px;
    color: #555;
    font-weight: 500;
    font-size: 16px;
}

input, textarea, select {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: #fafbfc;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    background: white;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

button {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-top: 20px;
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

.message {
    padding: 15px 18px;
    border-radius: 10px;
    margin-bottom: 25px;
    font-weight: 500;
    font-size: 16px;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Logo için stiller */
#logo-container {
    text-align: center;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#page-logo {
    max-width: 300px;
    max-height: 150px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: block;
    margin: 0 auto;
}

/* Açıklama için stiller */
#page-description {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 18px;
    line-height: 1.6;
    padding: 0 20px;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px;
        margin: 5px;
        max-width: 100%;
        min-height: auto;
        border-radius: 15px;
    }
    
    h1 {
        font-size: 1.8em;
        margin-bottom: 20px;
    }
    
    #page-description {
        font-size: 14px;
        margin-bottom: 25px;
        padding: 0 10px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    label {
        font-size: 14px;
        margin-bottom: 8px;
    }
    
    input, textarea, select {
        padding: 12px 15px;
        font-size: 16px;
        border-radius: 8px;
    }
    
    textarea {
        min-height: 100px;
    }
    
    button {
        padding: 15px;
        font-size: 16px;
        margin-top: 15px;
    }
    
    #logo-container {
        margin-bottom: 20px;
    }
    
    #page-logo {
        max-width: 250px;
        max-height: 120px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 5px;
        min-height: 100vh;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        padding-top: 10px;
    }
    
    .container {
        padding: 15px;
        margin: 2px;
        border-radius: 10px;
        min-height: auto;
        width: 100%;
        max-width: 100%;
    }
    
    h1 {
        font-size: 1.5em;
        margin-bottom: 15px;
        line-height: 1.2;
    }
    
    #page-description {
        font-size: 13px;
        margin-bottom: 20px;
        padding: 0 5px;
        line-height: 1.4;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    label {
        font-size: 14px;
        margin-bottom: 6px;
        font-weight: 500;
        color: #333;
    }
    
    input, textarea, select {
        padding: 12px 15px;
        font-size: 16px;
        border-radius: 8px;
        border: 2px solid #e1e5e9;
        width: 100%;
        box-sizing: border-box;
    }
    
    input:focus, textarea:focus, select:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }
    
    textarea {
        min-height: 80px;
        resize: vertical;
    }
    
    button {
        padding: 15px;
        font-size: 16px;
        margin-top: 15px;
        width: 100%;
        border-radius: 8px;
        font-weight: 600;
    }
    
    button:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    }
    
    #logo-container {
        margin-bottom: 15px;
    }
    
    #page-logo {
        max-width: 200px;
        max-height: 100px;
    }
    
    /* Checkbox ve radio button'lar için özel stiller */
    input[type="checkbox"], input[type="radio"] {
        width: auto;
        margin-right: 8px;
        transform: scale(1.2);
    }
    
    /* Checkbox ve radio label'ları için */
    .form-group label:has(input[type="checkbox"]),
    .form-group label:has(input[type="radio"]) {
        display: flex;
        align-items: center;
        font-size: 14px;
        margin-bottom: 10px;
    }
    
    /* Select dropdown için */
    select {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
        background-position: right 12px center;
        background-repeat: no-repeat;
        background-size: 16px;
        padding-right: 40px;
    }
    
    /* Mesaj stilleri */
    .message {
        padding: 12px 15px;
        border-radius: 8px;
        margin-bottom: 15px;
        font-size: 14px;
        font-weight: 500;
    }
}