/* ========================================
   安全期计算器 - 工具专用样式
   ======================================== */

/* 基本信息区域 */
.tool-page .basic-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
}

.tool-page .section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

/* 表单网格布局 */
.tool-page .form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.tool-page .form-group {
    display: flex;
    flex-direction: column;
}

.tool-page .form-label {
    font-size: 0.95rem;
    font-weight: 500;
    color: #fff;
    margin-bottom: 8px;
    display: block;
}

.tool-page .form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.95);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.tool-page .form-input:focus {
    outline: none;
    border-color: #fff;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.tool-page .form-help {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 6px;
    display: block;
}

/* 操作按钮 */
.tool-page .calculate-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.tool-page .btn {
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 140px;
}

.tool-page .btn-primary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
}

.tool-page .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(245, 87, 108, 0.4);
}

.tool-page .btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.tool-page .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

/* 计算结果区域 */
.tool-page .result-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #e3e8f0 100%);
    border-radius: 16px;
    padding: 30px;
    margin-top: 30px;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-page .result-section .section-title {
    color: #2d3748;
    border-bottom-color: rgba(45, 55, 72, 0.1);
}

.tool-page .result-content {
    display: grid;
    gap: 25px;
}

/* 周期日历 */
.tool-page .cycle-calendar {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.tool-page .calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
}

.tool-page .calendar-month {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
}

.tool-page .calendar-legend {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.tool-page .legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
}

.tool-page .legend-color {
    width: 18px;
    height: 18px;
    border-radius: 4px;
}

.tool-page .legend-color.period {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.tool-page .legend-color.ovulation {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.tool-page .legend-color.safe {
    background: linear-gradient(135deg, #48c6ef 0%, #6f86d6 100%);
}

/* 日历网格 */
.tool-page .calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.tool-page .calendar-weekday {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: #718096;
    padding: 10px 0;
}

.tool-page .calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f7fafc;
    color: #2d3748;
}

.tool-page .calendar-day.empty {
    background: transparent;
    cursor: default;
}

.tool-page .calendar-day.today {
    border: 2px solid #3182ce;
    font-weight: 700;
}

.tool-page .calendar-day.period {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.tool-page .calendar-day.ovulation {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
}

.tool-page .calendar-day.safe {
    background: linear-gradient(135deg, #48c6ef 0%, #6f86d6 100%);
    color: #fff;
}

.tool-page .calendar-day:not(.empty):hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 周期信息卡片 */
.tool-page .period-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.tool-page .result-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.tool-page .result-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.tool-page .result-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #718096;
    margin-bottom: 12px;
}

.tool-page .result-card .info-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    line-height: 1.6;
}

/* ========================================
   响应式设计
   ======================================== */

/* 平板端 */
@media (max-width: 1024px) {
    .tool-page .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tool-page .period-info {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 手机端 */
@media (max-width: 768px) {
    .tool-page .basic-info {
        padding: 20px;
    }

    .tool-page .form-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .tool-page .calculate-actions {
        flex-direction: column;
    }

    .tool-page .btn {
        width: 100%;
    }

    .tool-page .result-section {
        padding: 20px;
    }

    .tool-page .cycle-calendar {
        padding: 15px;
    }

    .tool-page .calendar-grid {
        gap: 4px;
    }

    .tool-page .calendar-day {
        font-size: 0.8rem;
    }

    .tool-page .calendar-legend {
        justify-content: center;
    }

    .tool-page .period-info {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .tool-page .result-card {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .tool-page .section-title {
        font-size: 1.1rem;
    }

    .tool-page .calendar-weekday {
        font-size: 0.75rem;
        padding: 8px 0;
    }

    .tool-page .calendar-day {
        font-size: 0.75rem;
    }

    .tool-page .legend-item {
        font-size: 0.8rem;
    }
}