/* ================================================================
   theme-night.css —— 「星夜」主题（晴空的暗色姊妹版）
   深蓝夜空，月光蓝白数字，星图氛围
   ================================================================ */

body.theme-night {
    background: #060a18;
    /* 地球在左，时钟整体靠右（与晴空同布局） */
    justify-content: flex-end;
}

body.theme-night .clock-wrapper {
    margin-right: 6vw;
}

/* 夜空暗角 */
body.theme-night::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 50;
    pointer-events: none;
    background: radial-gradient(ellipse at 50% 48%,
        rgba(0, 0, 0, 0) 44%,
        rgba(2, 4, 12, 0.52) 100%);
}

/* ---- 加载闪屏 ---- */
body.theme-night .loading-shimmer {
    background: #060a18;
    color: rgba(170, 205, 250, 0.30);
    text-shadow: 0 0 24px rgba(110, 180, 250, 0.45);
}

/* ---- 日期：星象栏 ---- */
body.theme-night .date-display {
    color: rgba(205, 224, 250, 0.90);
    letter-spacing: 5px;
    font-weight: 400;
    background: rgba(8, 13, 30, 0.74);
    border: 1px solid rgba(110, 170, 240, 0.28);
    border-radius: 8px;
    text-shadow:
        0 0 10px rgba(150, 195, 250, 0.50),
        0 0 26px rgba(110, 170, 240, 0.24);
    box-shadow:
        0 0 22px rgba(110, 170, 240, 0.10),
        inset 0 0 24px rgba(110, 170, 240, 0.06);
}

body.theme-night .date-display::before {
    content: '☾ ';
    color: rgba(225, 234, 255, 0.95);
    text-shadow: 0 0 14px rgba(200, 220, 255, 0.70);
}

/* ---- 时钟主体 ---- */
body.theme-night .clock {
    background: rgba(8, 13, 30, 0.68);
    border: 1px solid rgba(110, 170, 240, 0.22);
    border-radius: 20px;
    box-shadow:
        0 0 28px rgba(110, 170, 240, 0.10),
        0 24px 90px rgba(0, 0, 0, 0.92),
        inset 0 0 70px rgba(110, 170, 240, 0.05);
}

/* ---- 翻牌卡片 ---- */
body.theme-night .flip-card {
    border-radius: 12px;
    box-shadow:
        0 0 14px rgba(110, 170, 240, 0.10),
        0 6px 30px rgba(0, 0, 0, 0.88);
}

body.theme-night .flip-face {
    border-radius: 12px;
    background: linear-gradient(160deg, #131e38 0%, #0c1526 55%, #070d1c 100%);
    border: 1px solid rgba(110, 170, 240, 0.26);
    box-shadow:
        inset 0 1px 0 rgba(200, 220, 255, 0.06),
        inset 0 0 30px rgba(110, 170, 240, 0.06),
        inset 0 -16px 34px rgba(80, 140, 220, 0.05);
}

body.theme-night .flip-back {
    background: linear-gradient(160deg, #0c1526, #070d1c);
    border-color: rgba(140, 190, 250, 0.30);
}

/* ---- 数字：月光蓝白 ---- */
body.theme-night .digit {
    color: #dcecff;
    animation: digitBreathNight 8s ease-in-out infinite;
}

@keyframes digitBreathNight {
    0%, 100% {
        text-shadow:
            0 0 12px rgba(200, 225, 255, 0.50),
            0 0 34px rgba(110, 175, 245, 0.26),
            0 0 68px rgba(80, 140, 220, 0.14);
    }
    50% {
        text-shadow:
            0 0 18px rgba(200, 225, 255, 0.68),
            0 0 48px rgba(110, 175, 245, 0.38),
            0 0 90px rgba(80, 140, 220, 0.22);
    }
}

body.theme-night .flip-card.flipping .digit {
    filter: brightness(1.28);
}

/* ---- 卡片中线：星轨 ---- */
body.theme-night .flip-unit::after {
    height: 1.5px;
    background: linear-gradient(90deg,
        transparent,
        rgba(110, 175, 245, 0.40),
        rgba(220, 236, 255, 0.80),
        rgba(110, 175, 245, 0.40),
        transparent);
    box-shadow:
        0 0 12px rgba(110, 175, 245, 0.35),
        0 0 26px rgba(80, 140, 220, 0.18);
    opacity: 0.7;
}

body.theme-night .flip-unit::before {
    background: radial-gradient(ellipse at center, rgba(110, 175, 245, 0.12) 0%, transparent 70%);
}

/* ---- 冒号 ---- */
body.theme-night .colon {
    color: rgba(190, 215, 250, 0.65);
    animation: colonPulseNight 1.8s ease-in-out infinite alternate;
}

@keyframes colonPulseNight {
    0% {
        opacity: 0.35;
        text-shadow: 0 0 8px rgba(110, 175, 245, 0.25);
    }
    100% {
        opacity: 0.95;
        text-shadow:
            0 0 14px rgba(210, 230, 255, 0.70),
            0 0 34px rgba(110, 175, 245, 0.38);
    }
}

/* ---- 悬浮按钮 ---- */
body.theme-night .fullscreen-btn,
body.theme-night .settings-btn {
    background: rgba(8, 13, 30, 0.82);
    border: 1px solid rgba(110, 170, 240, 0.28);
    color: rgba(180, 208, 245, 0.80);
    box-shadow:
        0 0 16px rgba(110, 170, 240, 0.10),
        0 4px 26px rgba(0, 0, 0, 0.72);
}

body.theme-night .fullscreen-btn:hover,
body.theme-night .settings-btn:hover {
    background: rgba(18, 28, 52, 0.90);
    border-color: rgba(150, 200, 255, 0.55);
    color: #fff;
    box-shadow:
        0 0 22px rgba(120, 185, 250, 0.32),
        0 0 50px rgba(110, 170, 240, 0.18);
}

/* ---- 设置面板 ---- */
body.theme-night .settings-panel {
    background: rgba(9, 14, 32, 0.90);
    border: 1px solid rgba(110, 170, 240, 0.30);
    box-shadow:
        0 0 26px rgba(110, 170, 240, 0.14),
        0 20px 60px rgba(0, 0, 0, 0.85);
}

body.theme-night .panel-title {
    color: rgba(180, 208, 245, 0.78);
    text-shadow: 0 0 14px rgba(110, 175, 245, 0.42);
}

body.theme-night .panel-label {
    color: rgba(150, 185, 230, 0.55);
}

body.theme-night .theme-option {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(110, 170, 240, 0.16);
    color: rgba(205, 222, 248, 0.82);
}

body.theme-night .theme-option:hover {
    background: rgba(110, 175, 245, 0.10);
    border-color: rgba(140, 195, 250, 0.48);
    color: #fff;
    box-shadow: 0 0 18px rgba(110, 175, 245, 0.18);
}

body.theme-night .theme-option.is-active {
    border-color: rgba(140, 195, 250, 0.62);
    background: rgba(110, 175, 245, 0.14);
    color: #fff;
    box-shadow:
        0 0 22px rgba(110, 175, 245, 0.26),
        inset 0 0 18px rgba(110, 175, 245, 0.07);
}

body.theme-night .theme-check {
    color: #a8d0f8;
    text-shadow: 0 0 10px rgba(150, 200, 250, 0.80);
}

/* ---- 响应式：移动端地球移到上方，时钟回中 ---- */
@media (max-width: 720px) {
    body.theme-night {
        justify-content: center;
    }
    body.theme-night .clock-wrapper {
        margin-right: 0;
        margin-top: 16vh;
    }
}