/* =========================================
   Pogo 的个人主页 — iOS 悬浮透明玻璃风格
   ========================================= */

/* =========================================
   1. 色彩令牌
   ========================================= */
:root {
    --color-primary: #007AFF;
    --color-primary-hover: #0056CC;

    /* 玻璃 */
    --glass-bg: rgba(255, 255, 255, 0.50);
    --glass-bg-elevated: rgba(255, 255, 255, 0.62);
    --glass-border: rgba(255, 255, 255, 0.55);
    --glass-highlight: rgba(255, 255, 255, 0.5);

    /* 文字 */
    --text-primary: #1C1C1E;
    --text-secondary: #636366;
    --text-tertiary: #8E8E93;

    /* 阴影：营造悬浮感 */
    --shadow-float: 0 8px 32px rgba(0, 0, 0, 0.07),
                    0 2px 6px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04);

    /* 极光底色 (透过玻璃看到) */
    --aurora-1: #e8f0fe;
    --aurora-2: #f0e6f6;
    --aurora-3: #e0f0fd;

    /* 功能性 */
    --separator: rgba(60, 60, 67, 0.08);
}

body.dark-mode {
    --color-primary: #0A84FF;
    --color-primary-hover: #409CFF;

    --glass-bg: rgba(28, 28, 30, 0.50);
    --glass-bg-elevated: rgba(44, 44, 46, 0.62);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.03);

    --text-primary: #F2F2F7;
    --text-secondary: #AEAEB2;
    --text-tertiary: #636366;

    --shadow-float: 0 8px 32px rgba(0, 0, 0, 0.35),
                    0 2px 6px rgba(0, 0, 0, 0.20);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.15);

    --aurora-1: #1C1C1E;
    --aurora-2: #2C2040;
    --aurora-3: #1A2A40;

    --separator: rgba(255, 255, 255, 0.08);
}

/* =========================================
   2. 基础页面 + 极光底色
   ========================================= */
* {
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
    margin: 0;
    padding: 24px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;

    color: var(--text-primary);
    background: var(--aurora-1);

    /* 柔和的极光 — 给玻璃提供"内容" */
    background-image:
        radial-gradient(ellipse 60% 50% at 20% 30%, var(--aurora-1) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 80% 20%, var(--aurora-2) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 50% 75%, var(--aurora-3) 0%, transparent 65%);
    background-size: 160% 160%;
    animation: auroraBreathe 20s ease-in-out infinite alternate;

    transition: background-color 0.5s ease, color 0.5s ease;
}

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

/* =========================================
   3. 主玻璃容器 — iOS 风格
   ========================================= */
.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(30px) saturate(130%);
    -webkit-backdrop-filter: blur(30px) saturate(130%);

    width: 100%;
    max-width: 700px;
    padding: 56px 48px;
    border-radius: 40px;  /* iOS 中等圆角 */

    /* 干净的边框 + 悬浮阴影 */
    border: 1px solid var(--glass-border);
    box-shadow:
        var(--shadow-float),
        inset 0 0.5px 0 var(--glass-highlight);

    text-align: center;
    transition: background-color 0.5s ease,
                box-shadow 0.4s ease,
                border-color 0.4s ease;

    position: relative;
    z-index: 1;

    animation: fadeInUp 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

/* =========================================
   4. 头像
   ========================================= */
.avatar-wrapper {
    width: 112px;
    height: 112px;
    margin: 0 auto 24px;
    cursor: pointer;
    border-radius: 50%;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.avatar-wrapper:active { transform: scale(0.92); }

.avatar {
    width: 100%; height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--glass-border);
    background: var(--glass-bg-elevated);
}

/* 标题 */
.site-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin: 0 0 12px;
    color: var(--text-primary);
}

.site-description {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
}

/* =========================================
   5. 导航按钮 — 悬浮玻璃药丸
   ========================================= */
.menu-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 52px;
}

.menu {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;

    background: var(--glass-bg-elevated);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);

    color: var(--text-primary);
    border-radius: 100px;
    height: 50px;
    padding: 0 28px;
    font-weight: 600;
    font-size: 0.95rem;

    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);

    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.menu:hover {
    transform: translateY(-2px);
    background: var(--glass-bg);
    box-shadow:
        0 6px 20px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.04);
    border-color: rgba(255, 255, 255, 0.7);
}

.menu:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
}

body.dark-mode .menu:hover {
    box-shadow:
        0 6px 20px rgba(0, 0, 0, 0.3),
        0 1px 3px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.14);
}

/* =========================================
   6. 文章卡片
   ========================================= */
.post-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post a {
    display: block;
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);

    padding: 24px 28px;
    border-radius: 24px;
    text-decoration: none;
    color: var(--text-primary);
    text-align: left;

    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);

    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.post a:hover {
    transform: translateY(-3px);
    background: var(--glass-bg);
    box-shadow:
        0 8px 28px rgba(0, 0, 0, 0.08),
        0 2px 6px rgba(0, 0, 0, 0.04);
    border-color: rgba(255, 255, 255, 0.7);
}

body.dark-mode .post a:hover {
    box-shadow:
        0 8px 28px rgba(0, 0, 0, 0.35),
        0 2px 6px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.14);
}

.post-title {
    margin: 0 0 10px;
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.post-info {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    display: flex;
    gap: 14px;
    font-weight: 400;
}

/* =========================================
   7. 页脚
   ========================================= */
.site-footer {
    margin-top: 40px;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}
.site-footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}
.site-footer a:hover { opacity: 0.7; }

/* =========================================
   8. 文章页 & 表格
   ========================================= */
.article-container {
    max-width: 860px !important;
    margin: 0 auto !important;
    display: block !important;
    padding: 56px 64px !important;
}
@media (max-width: 899px) {
    .article-container { padding: 40px 24px !important; }
}

/* 返回按钮 */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 28px;
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s ease;
    font-size: 1rem;
    padding: 8px 16px;
    border-radius: 100px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
}
.back-btn:hover {
    background: var(--glass-bg-elevated);
    transform: translateX(-3px);
}

/* 文章正文 */
.article-content {
    line-height: 1.8;
    margin-top: 32px;
    padding-top: 28px;
    border-top: 1px solid var(--separator);
    font-size: 1.02rem;
}
.article-content h2 {
    margin: 36px 0 16px;
    font-size: 1.45rem;
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ---- 表格 ---- */
.score-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 28px 0;
    border-radius: 20px;
    overflow: hidden;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
}

.score-table th {
    padding: 14px 16px;
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-secondary);
    background: var(--glass-bg-elevated);
    border-bottom: 1px solid var(--separator);
}

.score-table td {
    padding: 14px 16px;
    text-align: center;
    border-bottom: 1px solid var(--separator);
    color: var(--text-primary);
    transition: background 0.2s ease;
}

.score-table tbody tr:last-child td {
    border-bottom: none;
}

.score-table tbody tr:hover {
    background: rgba(0, 122, 255, 0.04);
}
body.dark-mode .score-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.score-table td:first-child {
    padding: 5px 8px !important;
    width: 28%;
    vertical-align: middle;
}

/* ---- 学科胶囊 ---- */
.subject-link {
    color: var(--color-primary);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);

    display: flex;
    width: 100%;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 0;
    border-radius: 100px;
    background: transparent;
    font-size: 0.95rem;
}

.subject-link:hover {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.03);
    box-shadow: 0 4px 14px rgba(0, 122, 255, 0.25);
}

/* =========================================
   9. 模态弹窗
   ========================================= */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9999;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(40px) saturate(150%);
    -webkit-backdrop-filter: blur(40px) saturate(150%);
    color: var(--text-primary);
    padding: 36px;
    border-radius: 28px;
    max-width: 400px;
    width: 90%;

    border: 1px solid var(--glass-border);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.15),
        inset 0 0.5px 0 var(--glass-highlight);

    transform: translateY(24px) scale(0.96);
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-content h2 {
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.close-btn {
    margin-top: 20px;
    display: block;
    width: 100%;
    padding: 14px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: var(--text-primary);
    text-align: center;
    border-radius: 100px;
    cursor: pointer;
    font-weight: 500;
    border: 1px solid var(--glass-border);
    transition: all 0.25s ease;
}
.close-btn:hover {
    background: var(--glass-bg-elevated);
    transform: translateY(-1px);
}
.close-btn:active { transform: scale(0.97); }

/* =========================================
   10. 归档 & 标签页
   ========================================= */
.archive-container,
.tags-container {
    max-width: 700px;
}

.year-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 28px 0 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--separator);
}

/* 标签药丸 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 16px;
    border-radius: 50px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    border: 1px solid var(--glass-border);
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.tag-pill:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 122, 255, 0.25);
}

.tag-pill .count { font-size: 0.75rem; opacity: 0.6; }
.tag-section { margin-bottom: 32px; }
.tag-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* =========================================
   11. 引用块
   ========================================= */
.article-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding: 10px 18px;
    background: var(--glass-bg);
    border-radius: 0 8px 8px 0;
    margin-bottom: 24px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* =========================================
   12. 响应式
   ========================================= */
@media (max-width: 899px) {
    .glass-container { padding: 36px 22px; border-radius: 32px; }
    .site-title { font-size: 2rem; }

    .menu-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        max-width: 280px;
        margin: 0 auto 44px auto;
        gap: 12px;
    }

    .icon-btn {
        width: 56px;
        height: 56px;
        padding: 0;
        justify-content: center;
        border-radius: 20px;
    }
    .icon-btn .nav-text { display: none; }
    .icon-btn i { font-size: 1.5rem; margin: 0; }

    .about-btn {
        width: 100%;
        height: 56px;
        margin-top: 6px;
        justify-content: center;
        border-radius: 20px;
        font-size: 1rem;
    }
}

@media (min-width: 900px) {
    .glass-container {
        max-width: 1060px;
        display: grid;
        grid-template-columns: 340px 1fr;
        grid-template-rows: 1fr auto;
        gap: 0 72px;
        padding: 56px 72px;
        text-align: left;
    }
    .avatar-wrapper { margin: 0 0 28px 0; width: 128px; height: 128px; }
    .site-header {
        grid-column: 1; grid-row: 1 / 3;
        position: sticky; top: 56px;
        height: fit-content;
    }
    .menu-container, .site-header { justify-content: flex-start; }
    .menu-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        width: 100%;
        margin-top: 28px;
    }
    .menu, .icon-btn { width: 100%; justify-content: center; height: 50px; }
    .icon-btn .nav-text { display: inline; }
    .about-btn { grid-column: 1 / 3; }
    .post-container { grid-column: 2; grid-row: 1; gap: 20px; }
    .site-footer { grid-column: 2; grid-row: 2; margin-top: 36px; text-align: left; }
    .article-container, .archive-container, .tags-container {
        display: block !important;
        max-width: 820px !important;
        margin: 0 auto !important;
        padding: 56px 64px !important;
    }
}

/* =========================================
   13. View Transitions (主题切换)
   ========================================= */
::view-transition-old(root),
::view-transition-new(root) {
    animation: none;
    mix-blend-mode: normal;
}
::view-transition-new(root) { z-index: 9999; }

/* =========================================
   14. 动画
   ========================================= */
@keyframes fadeInUp {
    0%   { opacity: 0; transform: translateY(28px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0%   { transform: translateY(0px); }
    50%  { transform: translateY(-16px); }
    100% { transform: translateY(0px); }
}

/* =========================================
   15. 入场排期
   ========================================= */
.avatar-wrapper,
.site-title,
.site-description,
.menu,
.post a {
    animation: fadeInUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.avatar-wrapper    { animation-delay: 0.12s; }
.site-title        { animation-delay: 0.20s; }
.site-description  { animation-delay: 0.28s; }
.menu              { animation-delay: 0.40s; }
.post a            { animation-delay: 0.52s; }