@charset "UTF-8";
/* ==========================================================================
   common.css —— 明暗主题变量、玻璃质感基础类、通用按钮、明暗切换按钮
   说明：前台（front.css）与后台（admin.css）共用本文件的主题变量与基础组件
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* ------------------------------------------------------------------
   一、明暗主题变量
   ------------------------------------------------------------------ */
html[data-theme="light"] {
    --text-1: #0b0b12;
    --text-2: rgba(11, 11, 18, .62);
    --page-bg: #f2f3f7;
    --overlay-color: 255, 255, 255;
    --glass-bg: rgba(255, 255, 255, .55);
    --glass-bg-strong: rgba(255, 255, 255, .74);
    --glass-border: rgba(255, 255, 255, .85);
    --glass-highlight: rgba(255, 255, 255, .95);
    --glass-inner: rgba(255, 255, 255, .6);
    --glass-shadow: 0 24px 60px rgba(15, 23, 42, .16);
    --glass-sheen: rgba(255, 255, 255, .75);
    --input-bg: rgba(255, 255, 255, .72);
    --input-border: rgba(15, 23, 42, .14);
    --accent: #4f46e5;
    --accent-soft: rgba(79, 70, 229, .12);
    --accent-text: #ffffff;
    --danger: #dc2626;
    --success: #15803d;
    --aurora-opacity: .55;
}

html[data-theme="dark"] {
    --text-1: #f4f5fa;
    --text-2: rgba(244, 245, 250, .66);
    --page-bg: #07070b;
    --overlay-color: 0, 0, 0;
    --glass-bg: rgba(22, 22, 30, .42);
    --glass-bg-strong: rgba(22, 22, 30, .66);
    --glass-border: rgba(255, 255, 255, .16);
    --glass-highlight: rgba(255, 255, 255, .24);
    --glass-inner: rgba(255, 255, 255, .08);
    --glass-shadow: 0 24px 60px rgba(0, 0, 0, .55);
    --glass-sheen: rgba(255, 255, 255, .38);
    --input-bg: rgba(255, 255, 255, .07);
    --input-border: rgba(255, 255, 255, .18);
    --accent: #8b8cf7;
    --accent-soft: rgba(139, 140, 247, .18);
    --accent-text: #0b0b12;
    --danger: #f87171;
    --success: #4ade80;
    --aurora-opacity: .78;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-1);
    background: var(--page-bg);
    -webkit-font-smoothing: antialiased;
    transition: background-color .45s ease, color .45s ease;
}

/* ------------------------------------------------------------------
   二、玻璃质感基础类
   ------------------------------------------------------------------ */
.glass-panel {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 22px;
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    backdrop-filter: blur(24px) saturate(180%);
    box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
}

/* ------------------------------------------------------------------
   三、通用按钮
   ------------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    font-size: 14px;
    font-family: inherit;
    font-weight: 600;
    line-height: 1.2;
    border-radius: 14px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: transform .2s ease, background-color .3s ease, box-shadow .3s ease, opacity .2s ease;
}

.btn:active {
    transform: translateY(1px);
}

.btn--primary {
    background: var(--accent);
    color: var(--accent-text);
    box-shadow: 0 10px 24px -10px var(--accent);
}

.btn--primary:hover {
    opacity: .9;
}

.btn--ghost {
    background: var(--glass-bg-strong);
    border-color: var(--glass-border);
    color: var(--text-1);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    backdrop-filter: blur(14px) saturate(160%);
    box-shadow: inset 0 1px 0 var(--glass-highlight);
}

.btn--ghost:hover {
    background: var(--accent-soft);
}

.btn--block {
    width: 100%;
}

/* ------------------------------------------------------------------
   四、明暗切换按钮（前台 / 后台共用）
   ------------------------------------------------------------------ */
.theme-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    color: var(--text-1);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    backdrop-filter: blur(18px) saturate(180%);
    box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
    cursor: pointer;
    transition: transform .25s ease, background-color .3s ease;
}

.theme-toggle:hover {
    transform: scale(1.07);
}

.theme-toggle .icon {
    width: 20px;
    height: 20px;
}

html[data-theme="light"] .theme-toggle .icon--moon {
    display: none;
}

html[data-theme="dark"] .theme-toggle .icon--sun {
    display: none;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }
}