.check-date-section {
    min-height: 100vh;
    padding: 40px 0;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.check-date-section .container {
    max-width: 500px;
    margin: 0 auto;
    padding: 0 20px;
}

.calculator-header {
    text-align: center;
    margin-bottom: 30px;
}

.calculator-title {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.calculator-title i {
    font-size: 32px;
}

.calculator-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 15px;
}

.calculator-badge {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.badge-item {
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 14px;
    color: #fff;
}

.converter-main {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.input-section {
    margin-bottom: 25px;
}

.input-section label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.input-section label i {
    color: #fa709a;
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: #fa709a;
    box-shadow: 0 0 0 3px rgba(250, 112, 154, 0.1);
}

.output-section {
    margin-bottom: 20px;
}

.result-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-title i {
    color: #fa709a;
}

.result-box {
    position: relative;
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    border-radius: 12px;
    padding: 25px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    overflow: hidden;
}

#result-text {
    font-size: 20px;
    color: #fff;
    font-weight: 600;
    line-height: 1.5;
    word-break: break-all;
    flex: 1;
    padding-right: 40px;
}

.copy-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.copy-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.3);
}

.copy-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.output-formats {
    margin-top: 15px;
}

.format-item {
    display: flex;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 8px;
}

.format-item:last-child {
    margin-bottom: 0;
}

.format-label {
    color: #666;
    font-weight: 500;
    min-width: 80px;
}

.format-item span:last-child {
    color: #fa709a;
    font-weight: 500;
    word-break: break-all;
}

.today-btn-wrapper {
    margin-bottom: 25px;
}

.today-btn {
    width: 100%;
    padding: 14px 20px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.today-btn:hover {
    background: #fa709a;
    border-color: #fa709a;
    color: #fff;
}

.examples-section {
    margin-bottom: 25px;
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: #fa709a;
}

.examples-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.example-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    font-size: 14px;
}

.example-input {
    font-weight: 600;
    color: #333;
    min-width: 100px;
}

.example-arrow {
    color: #fa709a;
    font-weight: bold;
}

.example-output {
    color: #666;
    word-break: break-all;
}

.tips-section {
    background: #fffbe6;
    border: 1px solid #ffe066;
    border-radius: 12px;
    padding: 20px;
}

.tips-list {
    margin: 0;
    padding-left: 20px;
}

.tips-list li {
    padding: 8px 0;
    color: #8b7355;
    font-size: 14px;
}

@media (max-width: 480px) {
    .converter-main {
        padding: 20px;
    }

    .calculator-title {
        font-size: 24px;
    }

    .example-item {
        flex-direction: column;
        gap: 8px;
    }
}