:root {
    --primary-green: #1F7A4B;
    --primary-green-hover: #155a37;
    --light-green: #f0f8f4;
    --border-color: #e9ecef;
    --text-muted: #6c757d;
}

body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.header-container {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-hover) 100%);
    color: white;
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(31, 122, 75, 0.1);
}

.back-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    transform: translateX(-2px);
}

.form-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    margin-bottom: 2rem;
}

.section-title {
    color: var(--primary-green);
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-green);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary-green);
}

.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 0.2rem rgba(31, 122, 75, 0.15);
}

.btn-primary {
    background: var(--primary-green);
    border-color: var(--primary-green);
    padding: 0.75rem 2rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(31, 122, 75, 0.2);
}

.btn-primary:hover {
    background: var(--primary-green-hover);
    border-color: var(--primary-green-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(31, 122, 75, 0.3);
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #fafbfc;
    border-radius: 8px;
    border-left: 4px solid var(--primary-green);
}

.icon-field {
    position: relative;
}

.icon-field i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-green);
    z-index: 5;
}

.icon-field .form-control,
.icon-field .form-select {
    padding-left: 2.5rem;
}

.required-field::after {
    content: ' *';
    color: #dc3545;
}

.page-title {
    align-items: center;
    gap: 0.75rem;
    color: white;
    margin: 0;
}

.page-title i {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .form-container {
        padding: 1.5rem;
        margin: 1rem;
    }

    .header-container {
        padding: 1rem 0;
    }
}