:root {
    --primary-color: #0082CC;
    --primary-hover: #006ba8;
    --primary-light: #e7f1ff;
    --secondary-color: #97A4AF;
    --dark-color: #1a1f2b;
    --light-color: #f8f9fa;
    --success-color: #198754;
    --success-light: #d1e7dd;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    padding: 40px 0;
    color: var(--dark-color);
    line-height: 1.6;
}

.register-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 15px;
}

.logo-container {
    text-align: center;
    margin-bottom: 30px;
}

.logo-img {
    height: 100px;
    width: auto;
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
}

.register-card {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

.register-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-5px);
}

.register-header {
    background: var(--primary-color);
    padding: 30px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.register-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.register-header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
    position: relative;
}

.register-header p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 0;
    position: relative;
}

.register-body {
    padding: 40px;
}

.section-title {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.section-title i {
    font-size: 22px;
    margin-right: 10px;
}

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

.form-floating > .form-control,
.form-floating > .form-select {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    /* padding: 1rem 1rem; */
    height: calc(3.5rem + 2px);
    font-size: 16px;
    transition: var(--transition);
}

.form-floating #telefon {
    height: calc(3.5rem + 2px);
}

.form-floating > textarea#faturaAdresi {
    height: 100px;
}

.form-floating > .form-control:focus,
.form-floating > .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 130, 204, 0.15);
}

.form-floating > label {
    padding: 1rem 1rem;
    color: var(--secondary-color);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-select:focus ~ label {
    color: var(--primary-color);
}

.form-check-input {
    width: 1.2em;
    height: 1.2em;
    margin-top: 0.15em;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    font-size: 15px;
    color: var(--dark-color);
}

.form-check-label a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.form-check-label a:hover {
    text-decoration: underline;
}

.btn-register {
    background: linear-gradient(to right, var(--primary-color), var(--primary-hover));
    border: none;
    padding: 15px 30px;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.5px;
    border-radius: 10px;
    transition: var(--transition);
    width: 100%;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
    color: white;
}

.btn-register::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0.1), rgba(255,255,255,0));
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.btn-register:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 130, 204, 0.2);
    color: white;
}

.btn-register:hover::before {
    transform: translateX(100%);
}

.btn-register i {
    margin-right: 8px;
}

.login-link {
    text-align: center;
    margin-top: 20px;
    font-size: 15px;
    color: var(--secondary-color);
}

.login-link a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.login-link a:hover {
    text-decoration: underline;
}

.alert {
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 25px;
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-danger {
    background-color: #fff5f5;
    color: #dc3545;
    border-left: 4px solid #dc3545;
}

.invalid-feedback {
    font-size: 13px;
    margin-top: 5px;
}

.section-divider {
    height: 1px;
    background: var(--border-color);
    margin: 30px 0;
    position: relative;
}

.section-divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: -1px;
    height: 3px;
    width: 50px;
    background: var(--primary-color);
    border-radius: 3px;
}

@media (max-width: 768px) {
    .register-body {
        padding: 25px;
    }
    
    .register-header {
        padding: 25px;
    }
    
    .register-header h1 {
        font-size: 24px;
    }
    
    .logo-img {
        height: 45px;
    }
    
    .btn-register {
        padding: 12px 20px;
    }
}