.proposal-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.proposal-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    max-width: 900px;
    width: 100%;
    padding: 2rem;
}

.proposal-header {
    border-bottom: 1px solid #eee;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.proposal-header h1 {
    margin: 0 0 0.5rem 0;
    color: #333;
}

.project-name {
    color: #666;
    margin: 0.5rem 0;
}

.proposal-description {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.proposal-items {
    margin-bottom: 1.5rem;
}

.proposal-items h3 {
    margin-bottom: 1rem;
}

.proposal-totals {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.grand-total {
    border-top: 2px solid #333;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    font-weight: bold;
    font-size: 1.2rem;
}

.validity-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.response-section {
    background: #f0f4ff;
    padding: 1.5rem;
    border-radius: 8px;
}

.response-section h3 {
    margin-top: 0;
}

.form-group {
    margin-bottom: 1rem;
}

.button-group {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.loading-container, .error-container, .processing-container {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.accepted-section, .rejected-section {
    text-align: center;
    padding: 2rem;
}