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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5e6d3 0%, #e8d4c0 100%);
    color: #333;
    min-height: 100vh;
    padding: 20px;
}

.header {
    background: linear-gradient(135deg, #d4a574 0%, #c68a6f 100%);
    color: white;
    padding: 30px 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(198, 138, 111, 0.2);
}

.header-content {
    max-width: 1000px;
    margin: 0 auto;
}

.logo-text {
    font-size: 24px;
    margin-bottom: 10px;
}

.greeting {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 5px;
}

.date {
    font-size: 14px;
    opacity: 0.95;
}

.main-container {
    max-width: 1000px;
    margin: 0 auto;
}

.briefing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.card h2 {
    color: #c68a6f;
    font-size: 18px;
    margin-bottom: 15px;
    border-bottom: 2px solid #f0e6d8;
    padding-bottom: 10px;
}

.card p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
}

.card ul {
    color: #666;
    line-height: 1.8;
    font-size: 14px;
    margin-left: 20px;
    margin-top: 10px;
}

.card ul li {
    margin-bottom: 8px;
}

.feedback-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.feedback-section h2 {
    color: #c68a6f;
    font-size: 20px;
    margin-bottom: 25px;
    border-bottom: 2px solid #f0e6d8;
    padding-bottom: 15px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 600;
    font-size: 14px;
}

select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    transition: border-color 0.2s;
}

select:focus,
textarea:focus {
    outline: none;
    border-color: #c68a6f;
    box-shadow: 0 0 0 3px rgba(198, 138, 111, 0.1);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.rating-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.star-btn {
    width: 45px;
    height: 45px;
    border: 2px solid #ddd;
    background: white;
    border-radius: 8px;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

.star-btn:hover {
    border-color: #c68a6f;
    background: #fff5f0;
}

.star-btn.selected {
    border-color: #c68a6f;
    background: #c68a6f;
    color: white;
}

.submit-btn {
    background: linear-gradient(135deg, #d4a574 0%, #c68a6f 100%);
    color: white;
    border: none;
    padding: 14px 40px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(198, 138, 111, 0.3);
    width: 100%;
    margin-top: 20px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(198, 138, 111, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.success-message {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    text-align: center;
    display: none;
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

.success-message.show {
    display: block;
}

.error-message {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    text-align: center;
    display: none;
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

.error-message.show {
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer-links {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #f0e6d8;
}

.footer-links a {
    color: #c68a6f;
    text-decoration: none;
    margin: 0 15px;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #b87456;
}

@media (max-width: 768px) {
    .greeting {
        font-size: 24px;
    }

    .briefing-grid {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 20px;
    }

    .feedback-section {
        padding: 20px;
    }

    .rating-group {
        flex-wrap: wrap;
    }

    .star-btn {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 20px 15px;
        margin-bottom: 20px;
    }

    .greeting {
        font-size: 20px;
    }

    .logo-text {
        font-size: 18px;
    }

    .card h2 {
        font-size: 16px;
    }

    .card p,
    .card ul {
        font-size: 13px;
    }

    .submit-btn {
        padding: 12px 30px;
        font-size: 15px;
    }
}