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

body {
    font-family: 'Inter', sans-serif;
    background: #f5f7fb;
    color: #1e293b;
}

:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --white: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-500: #64748b;
    --gray-700: #334155;
    --success: #10b981;
    --danger: #ef4444;
}

/* Header Styles */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.logo h1 {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    cursor: pointer;
    transition: opacity 0.2s;
}

.logo h1:hover {
    opacity: 0.8;
}

.back-btn {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 30px;
    transition: 0.2s;
}

.back-btn:hover {
    background: var(--gray-100);
}

/* Container */
.container {
    max-width: 600px;
    margin: 32px auto;
    padding: 0 20px;
}

/* Register Card */
.register-card {
    background: var(--white);
    border-radius: 24px;
    border: 1px solid var(--gray-200);
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.register-header {
    text-align: center;
    margin-bottom: 28px;
}

.register-header h2 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--primary);
}

.register-header p {
    color: var(--gray-500);
    font-size: 13px;
}

/* Step Indicator */
.step-indicator {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    justify-content: center;
}

.step {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-200);
    transition: 0.2s;
}

.step.active {
    background: var(--primary);
    width: 30px;
    border-radius: 20px;
}

.step.completed {
    background: var(--success);
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--gray-200);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    background: var(--gray-100);
    margin-top: 8px;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--primary);
    background: #eef2ff;
}

.file-upload i {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
    display: block;
}

.file-preview {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.file-preview-item {
    position: relative;
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.file-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-file {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--danger);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.2s;
}

.remove-file:hover {
    transform: scale(1.1);
}

/* Buttons */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    font-size: 16px;
    transition: 0.2s;
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-1px);
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

/* Info Text */
.info-text {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 8px;
    text-align: center;
}

/* Footer */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--gray-500);
    font-size: 12px;
    border-top: 1px solid var(--gray-200);
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .container {
        padding: 0 16px;
        margin: 20px auto;
    }
    
    .register-card {
        padding: 20px;
    }
    
    .register-header h2 {
        font-size: 20px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn-submit {
        padding: 12px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 12px 16px;
    }
    
    .logo h1 {
        font-size: 18px;
    }
    
    .register-card {
        padding: 16px;
    }
    
    .file-upload {
        padding: 16px;
    }
    
    .file-upload i {
        font-size: 20px;
    }
}