:root {
    --primary-blue: #0066FF;
    --primary-blue-light: #3385FF;
    --primary-blue-dark: #0052D9;
    --primary-blue-bg: rgba(0, 102, 255, 0.08);
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #F2F3F5;
    
    --text-primary: #1D2129;
    --text-secondary: #4E5969;
    --text-tertiary: #86909C;
    --text-quaternary: #C9CDD4;
    
    --success: #00B42A;
    --warning: #FF7D00;
    --danger: #F53F3F;
    --info: #3491FA;
    
    --border-light: #F2F3F5;
    --border-normal: #E5E6EB;
    --border-dark: #C9CDD4;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
}

.time-container {
    display: flex;
    gap: 24px;
    margin: 12px 0;
}
.time-text {
    font-size: 16px;
}

.time-item {
    font-size: 14px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.time-display {
    text-align: center;
    margin-bottom: 32px;
    padding: 40px 0;
    background: #f8fafc;
    border-radius: 16px;
    color: #1e293b;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(203, 213, 225, 0.3);
}

.time-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: techShimmer 3s ease-in-out infinite;
}

.time-display::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.2) 0%, transparent 70%),
        radial-gradient(circle at 100% 100%, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

@keyframes techShimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(200%); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.time-display h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.status-color-guide {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
    position: relative;
    z-index: 1;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.status-item.safe .status-dot {
    background: var(--success);
}

.status-item.warning .status-dot {
    background: var(--warning);
}

.status-item.danger .status-dot {
    background: var(--danger);
}

.status-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.current-time {
    font-size: 16px;
    font-family: 'SF Mono', 'Courier New', monospace;
    font-weight: 500;
    opacity: 0.95;
    letter-spacing: 0.02em;
    position: relative;
    z-index: 1;
}

.form-container,
.alarms-container,
.completed-container,
.settings-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-normal);
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.form-container:hover,
.alarms-container:hover,
.completed-container:hover,
.settings-container:hover {
}

.form-container {
    padding: 24px;
}

h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 1px;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
}

input[type="text"],
input[type="number"],
input[type="datetime-local"],
select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-normal);
    border-radius: 8px;
    font-size: 14px;
    background-color: var(--bg-primary);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.input-with-select {
    display: grid;
    grid-template-columns: 4fr 1fr;
    gap: 12px;
}

.input-with-button {
    display: flex;
    gap: 12px;
}

.input-with-button input {
    flex: 1;
}

.current-time {
    color: var(--primary-blue);
    background: var(--primary-blue-bg);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    font-size: 14px;
    margin-left: 12px;
    margin-top: -10px;
    font-weight: normal;
}

.preset-reminders {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.preset-reminders label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    margin-bottom: 0;
    padding: 12px 16px;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.preset-reminders label:hover {
}

.preset-reminders input[type="checkbox"],
input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.custom-reminder {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.help-text {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 8px;
    line-height: 1.4;
}

.reminders-list {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.reminder-tag {
    background-color: var(--primary-blue-bg);
    color: var(--primary-blue);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    border: 1px solid rgba(0, 102, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.reminder-tag:hover {
}

.reminder-tag .remove {
    cursor: pointer;
    color: var(--danger);
    font-weight: bold;
    font-size: 14px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.reminder-tag .remove:hover {
    opacity: 1;
}

button {
    padding: 12px 20px;
    border: 1px solid var(--border-normal);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-family: inherit;
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

button:hover::before {
}

button:hover {
}

.submit-btn {
    display: block;
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-top: 20px;
    background: #1890ff !important;
    color: white !important;
    border: 1px solid #1890ff !important;
}

.submit-btn:hover {
    opacity: 0.9;
}

.primary-btn {
    background: #1890ff;
    color: white;
    border: 1px solid #1890ff;
    border-radius: 8px;
}

.secondary-btn {
    background: #f0f0f0;
    color: #666666;
    border: 1px solid #d9d9d9;
    border-radius: 8px;
}

#clearCompletedBtn {
    background: rgba(245, 63, 63, 0.1) !important;
    color: #f53f3f !important;
    border: 1px solid rgba(245, 63, 63, 0.3) !important;
}

#hideCompletedBtn {
    background: rgba(24, 144, 255, 0.1) !important;
    color: #1890ff !important;
    border: 1px solid rgba(24, 144, 255, 0.3) !important;
}

#saveSettings {
    background: rgba(0, 102, 255, 0.1) !important;
    color: #1890ff !important;
    border: 1px solid rgba(0, 102, 255, 0.3) !important;
}

#addCustomReminder {
    background: rgba(46, 204, 113, 0.1) !important;
    color: #2ecc71 !important;
    border: 1px solid rgba(46, 204, 113, 0.3) !important;
    border-radius: 8px;
}

.stop-alerts-btn {
    background: rgba(245, 63, 63, 0.1) !important;
    color: #f53f3f !important;
    border: 1px solid rgba(245, 63, 63, 0.3) !important;
    border-radius: 8px;
}

button[onclick*="extendDeadline"] {
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-blue);
    border: 1px solid rgba(0, 102, 255, 0.3);
}

button[onclick*="pauseAlarmTime"] {
    background: rgba(255, 125, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 125, 0, 0.3);
}

button[onclick*="resumeAlarmTime"] {
    background: rgba(0, 180, 42, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 180, 42, 0.3);
}

button[onclick*="editAlarm"] {
    background: rgba(155, 89, 182, 0.1);
    color: #9b59b6;
    border: 1px solid rgba(155, 89, 182, 0.3);
}

button[onclick*="completeAlarm"] {
    background: rgba(0, 180, 42, 0.1);
    color: var(--success);
    border: 1px solid rgba(0, 180, 42, 0.3);
}

button[onclick*="deleteAlarm"] {
    background: rgba(245, 63, 63, 0.1);
    color: var(--danger);
    border: 1px solid rgba(245, 63, 63, 0.3);
}

button[onclick*="activateAlarm"] {
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-blue);
    border: 1px solid rgba(0, 102, 255, 0.3);
}

.primary-btn:hover,
.secondary-btn:hover,
.stop-alerts-btn:hover,
#addCustomReminder:hover {
}

.alarms-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
}

.header-actions {
    display: flex;
    gap: 12px;
}

.alarms-list {
    padding: 0;
}

.alarm-item {
    display: flex;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 16px;
    transition: all 0.2s ease;
    position: relative;
}

.alarm-item:last-child {
    border-bottom: none;
}

.alarm-item:hover {
    background: var(--bg-tertiary);
}

.alarm-item.danger {
    border-left: 4px solid var(--danger);
    background: rgba(245, 63, 63, 0.02);
}

.alarm-item.warning {
    border-left: 4px solid var(--warning);
    background: rgba(255, 125, 0, 0.02);
}

.alarm-item.safe {
    border-left: 4px solid var(--success);
    background: rgba(0, 180, 42, 0.02);
}

.alarm-details {
    flex: 1;
}

.alarm-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.alarm-id {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.alarm-label {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.alarm-value {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.alarm-time {
    font-size: 16px;
    font-weight: 600;
    font-family: 'SF Mono', 'Courier New', monospace;
    padding: 0;
    transition: all 0.2s ease;
}

.alarm-time.safe {
    color: var(--success);
}

.alarm-time.warning {
    color: var(--warning);
}

.alarm-time.danger {
    color: var(--danger);
}

.alarm-time.paused {
    color: var(--text-tertiary);
}



.alarm-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.alarm-actions button {
    padding: 8px 12px;
    font-size: 12px;
    min-width: auto;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
    font-size: 14px;
}

.empty-state::before {
    content: "📋";
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
    opacity: 0.5;
}

.completed-container {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
}

.completed-container .completed-item {
    background-color: #f8f9fa;
    opacity: 0.8;
    padding: 16px;
    margin-bottom: 16px;
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    border-left: none !important;
    border: 1px solid var(--border-light);
}

.completed-container .alarm-item:hover {
    opacity: 1;
}

.completed-item .alarm-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.completed-item .alarm-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.completed-item .alarm-id {
    font-weight: 600;
    color: var(--text-primary);
}

.completed-item p {
    margin: 8px 0;
    line-height: 1.5;
}

.completed-item strong {
    font-weight: 600;
}

.completed-actions {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-top: 12px;
    align-self: flex-start;
}

.completed-container .alarm-time {
    color: var(--success);
    background: rgba(0, 180, 42, 0.1);
    border-color: rgba(0, 180, 42, 0.3);
}

.settings-container {
    padding: 24px;
}

.settings-container label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    cursor: pointer;
    padding: 12px 16px;
    border: 1px solid var(--border-normal);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.settings-container label:hover {
    background: var(--bg-tertiary);
}

.settings-container input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 1px solid #ddd;
    background-color: white;
    border-radius: 2px;
    position: relative;
    margin-right: 8px;
    order: -1;
    transition: all 0.2s ease;
}

input[type="checkbox"]:checked + .checkmark {
    background-color: #1890ff;
    border-color: #1890ff;
}

input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 5.5px;
    top: 3.5px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.alarm-status.completed {
    display: inline-block;
    margin-left: -16px;
    margin-top: 4px;
    background: rgba(0, 180, 42, 0.1);
    color: var(--success);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

/* 为标签添加间距和对齐 */
label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    position: relative;
}

.footer {
    margin-top: 40px;
    padding-top: 24px;
    padding-bottom: 24px;
    border-top: 1px solid var(--border-light);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
    display: block;
}

.footer-link:hover {
    color: var(--primary-blue);
}

.footer-version {
    color: var(--text-tertiary);
    font-size: 12px;
    margin-bottom: 8px;
}

.footer-copyright {
    color: var(--text-tertiary);
    font-size: 12px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-primary);
    margin: 5% auto;
    padding: 0;
    border: 1px solid var(--border-normal);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color 0.2s ease;
}

.close-btn:hover {
    color: var(--text-secondary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    
    .form-container,
    .alarms-container,
    .settings-container {
        padding: 20px;
    }
    
    .input-with-select {
        grid-template-columns: 1fr;
    }
    
    .alarms-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .alarm-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .alarm-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}