/* ============================================
   高级发光时钟 - 精美样式表
   完美支持 Cloudflare Workers
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&display=swap');

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

:root {
    --glow-color: #00f3ff;
    --glow-intensity: 1;
    --font-size: 120px;
    --bg-mode: dark;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Orbitron', 'Segoe UI', monospace;
    overflow: hidden;
    transition: background 1.5s ease;
    background: #0a0a12;
    user-select: none;
}

/* ===== 背景模式 ===== */

/* 深邃暗黑 */
body.bg-dark {
    background: #0a0a12;
}

/* 炫彩渐变 */
body.bg-gradient {
    background: linear-gradient(135deg, #0a0a12 0%, #1a0033 25%, #003344 50%, #1a0033 75%, #0a0a12 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 极光幻彩 */
body.bg-aurora {
    background: linear-gradient(135deg, #0a0a12, #0d1b2a, #1b2838, #0d1b2a, #0a0a12);
    background-size: 600% 600%;
    animation: auroraShift 10s ease infinite;
}

@keyframes auroraShift {
    0% { background-position: 0% 0%; }
    25% { background-position: 100% 0%; }
    50% { background-position: 100% 100%; }
    75% { background-position: 0% 100%; }
    100% { background-position: 0% 0%; }
}

/* ===== 粒子画布 ===== */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ===== 时钟容器 ===== */
.clock-container {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    width: 100%;
    padding: 20px;
}

.clock-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
}

/* ===== 日期部分 ===== */
.date-section {
    font-size: clamp(16px, 2.5vw, 28px);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 6px;
    text-transform: uppercase;
    text-shadow: 0 0 20px var(--glow-color);
    animation: softPulse 3s ease-in-out infinite;
    font-family: 'Segoe UI', sans-serif;
}

/* ===== 时间部分 ===== */
.time-section {
    display: flex;
    align-items: flex-end;
    gap: 20px;
}

.time-main {
    display: flex;
    align-items: center;
    gap: 0;
    line-height: 1;
}

.time-digit {
    font-size: var(--font-size);
    font-weight: 900;
    color: #fff;
    text-shadow:
        0 0 calc(7px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(20px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(40px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(80px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(140px * var(--glow-intensity)) var(--glow-color);
    animation: textGlow 2s ease-in-out infinite alternate;
    letter-spacing: 4px;
    transition: font-size 0.5s ease;
}

.time-separator {
    font-size: var(--font-size);
    font-weight: 900;
    color: var(--glow-color);
    text-shadow:
        0 0 calc(10px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(30px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(60px * var(--glow-intensity)) var(--glow-color);
    animation: separatorBlink 1s steps(1) infinite;
    margin: 0 4px;
}

.time-ampm {
    font-size: clamp(20px, 3vw, 36px);
    font-weight: 700;
    color: var(--glow-color);
    text-shadow:
        0 0 calc(10px * var(--glow-intensity)) var(--glow-color),
        0 0 calc(30px * var(--glow-intensity)) var(--glow-color);
    margin-bottom: clamp(8px, 1.5vw, 18px);
    letter-spacing: 4px;
}

/* ===== 星期部分 ===== */
.weekday-section {
    font-size: clamp(14px, 1.8vw, 22px);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 8px;
    text-shadow: 0 0 15px var(--glow-color);
    font-family: 'Segoe UI', sans-serif;
}

/* ===== 农历部分 ===== */
.lunar-section {
    font-size: clamp(12px, 1.5vw, 18px);
    color: rgba(255, 255, 255, 0.45);
    letter-spacing: 4px;
    text-shadow: 0 0 10px var(--glow-color);
    font-family: 'Segoe UI', 'PingFang SC', sans-serif;
    margin-top: 4px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lunar-section.visible {
    opacity: 1;
}

/* ===== 额外信息 ===== */
.extra-info {
    margin-top: 12px;
    font-size: clamp(11px, 1.2vw, 15px);
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 3px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Segoe UI', sans-serif;
}

.separator-dot {
    color: rgba(255, 255, 255, 0.2);
}

/* ===== 动画 ===== */
@keyframes textGlow {
    0% {
        text-shadow:
            0 0 calc(5px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(15px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(30px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(60px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(100px * var(--glow-intensity)) var(--glow-color);
    }
    100% {
        text-shadow:
            0 0 calc(10px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(25px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(50px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(100px * var(--glow-intensity)) var(--glow-color),
            0 0 calc(180px * var(--glow-intensity)) var(--glow-color);
    }
}

@keyframes softPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

@keyframes separatorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ===== 设置按钮 ===== */
.settings-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s ease;
    color: #fff;
}

.settings-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.1);
    box-shadow: 0 0 30px var(--glow-color);
}

/* ===== 设置面板 ===== */
.settings-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: rgba(20, 20, 35, 0.95);
    backdrop-filter: blur(20px);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    padding: 30px;
    z-index: 200;
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    color: #fff;
}

.settings-panel.open {
    right: 0;
}

.settings-panel h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--glow-color);
    text-shadow: 0 0 20px var(--glow-color);
    font-family: 'Segoe UI', sans-serif;
    letter-spacing: 2px;
}

.settings-group {
    margin-bottom: 22px;
}

.settings-group label {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
    font-family: 'Segoe UI', sans-serif;
    letter-spacing: 1px;
}

.settings-group select,
.settings-group input[type="color"],
.settings-group input[type="range"] {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    font-family: 'Segoe UI', sans-serif;
}

.settings-group select:hover,
.settings-group input[type="color"]:hover,
.settings-group input[type="range"]:hover {
    border-color: var(--glow-color);
}

.settings-group select:focus,
.settings-group input[type="color"]:focus,
.settings-group input[type="range"]:focus {
    border-color: var(--glow-color);
    box-shadow: 0 0 15px var(--glow-color);
}

.settings-group input[type="color"] {
    height: 45px;
    padding: 4px;
    cursor: pointer;
}

.settings-group input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--glow-color), rgba(255, 255, 255, 0.1));
    cursor: pointer;
    padding: 0;
}

.settings-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--glow-color);
    box-shadow: 0 0 15px var(--glow-color);
    cursor: pointer;
}

/* ===== 开关 ===== */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    transition: 0.3s;
    border-radius: 26px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    transition: 0.3s;
    border-radius: 50%;
}

.switch input:checked + .slider {
    background: var(--glow-color);
    box-shadow: 0 0 15px var(--glow-color);
}

.switch input:checked + .slider:before {
    transform: translateX(24px);
}

/* ===== 重置按钮 ===== */
.settings-reset {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Segoe UI', sans-serif;
    letter-spacing: 1px;
    margin-top: 10px;
}

.settings-reset:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--glow-color);
    box-shadow: 0 0 20px var(--glow-color);
}

/* ===== 遮罩层 ===== */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* ===== 滚动条 ===== */
.settings-panel::-webkit-scrollbar {
    width: 4px;
}

.settings-panel::-webkit-scrollbar-track {
    background: transparent;
}

.settings-panel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .settings-panel {
        width: 100%;
        right: -100%;
    }

    .time-digit {
        font-size: clamp(40px, 15vw, 80px) !important;
    }

    .time-separator {
        font-size: clamp(40px, 15vw, 80px) !important;
    }

    .date-section {
        font-size: clamp(12px, 3vw, 18px);
        letter-spacing: 3px;
    }

    .settings-toggle {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .time-digit {
        font-size: clamp(28px, 12vw, 50px) !important;
        letter-spacing: 2px;
    }

    .time-separator {
        font-size: clamp(28px, 12vw, 50px) !important;
    }

    .time-ampm {
        font-size: clamp(14px, 4vw, 22px);
    }
}