/* ═══════════════════════════════════════════
   GlassStyleHomepage — 全局样式
   维护指引：
   - 修改 :root 中的变量即可全局调色
   - 需新增组件时，在下方对应的分区追加
   ═══════════════════════════════════════════ */

/* ── Design Tokens ── */
:root {
    /* 文本透明度层级 */
    --text-primary:   rgba(255, 255, 255, 0.92);
    --text-secondary: rgba(255, 255, 255, 0.70);
    --text-tertiary:  rgba(255, 255, 255, 0.50);
    --text-muted:     rgba(255, 255, 255, 0.30);
    --text-faint:     rgba(255, 255, 255, 0.15);

    /* 玻璃面板背景 */
    --glass-bg:       rgba(255, 255, 255, 0.03);
    --glass-bg-item:  rgba(255, 255, 255, 0.04);
    --glass-bg-btn:   rgba(255, 255, 255, 0.06);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-bg-active:rgba(255, 255, 255, 0.12);

    /* 边框 */
    --border-default: rgba(255, 255, 255, 0.12);
    --border-subtle:  rgba(255, 255, 255, 0.06);
    --border-hover:   rgba(255, 255, 255, 0.25);
    --border-light:   rgba(255, 255, 255, 0.10);

    /* 阴影 */
    --shadow-card:  0 20px 60px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.30);

    /* 圆角 */
    --radius-container: 28px;
    --radius-btn:       18px;
    --radius-item:      14px;
    --radius-modal:     24px;

    /* 过渡 */
    --transition-fast: 0.3s ease;
}

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

/* ── Body ── */
body {
    min-height: 100vh;
    display: flex;
    align-items: left;
    justify-content: left;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
        "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: #0f0f1a url("../img/bg.png") center / cover no-repeat fixed;
    padding: 20px;
}

/* 半透明遮罩 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.30);
    z-index: 0;
}

/* ── 主容器：玻璃板 ── */
.glass-container {
    position: relative;
    z-index: 1;
    max-width: 740px;
    width: 100%;
    padding: 44px 40px 36px;
    border-radius: var(--radius-container);
    background: var(--glass-bg);
    backdrop-filter: blur(5px) saturate(1.0);
    -webkit-backdrop-filter: blur(5px) saturate(1.0);
    border: 1px solid var(--border-default);
    box-shadow:
        var(--shadow-card),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transition: box-shadow 0.4s ease;
}

/* ── 标题区 ── */
.header {
    text-align: left;
    margin-bottom: 32px;
}

h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 2px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.subtitle {
    text-align: left;
    margin-top: 8px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

#hitokoto {
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-tertiary);
    border-left: 2px solid var(--border-light);
    padding-left: 14px;
}

#hitokoto a {
    color: inherit;
    text-decoration: none;
}

/* ── 时钟 ── */
.clock-section {
    padding: 18px 0;
    margin-bottom: 24px;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    text-align: left;
}

.clock-time {
    font-size: 42px;
    font-weight: 300;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    letter-spacing: 3px;
    font-family: "Cascadia Code", "JetBrains Mono", "Fira Code", Consolas, monospace;
}

.clock-seconds {
    font-size: 22px;
    color: var(--text-tertiary);
}

.clock-date {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 6px;
    letter-spacing: 1px;
}

/* ── 社交按钮 ── */
.button-group {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.glass-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 22px 16px;
    border-radius: var(--radius-btn);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    background: var(--glass-bg-btn);
    backdrop-filter: blur(6px);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

/* 玻璃边缘发光（光穿透玻璃效果） */
.glass-btn::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: calc(var(--radius-btn) + 1px);
    padding: 2px;
    background: conic-gradient(
        transparent 0deg,
        transparent 160deg,
        rgba(255, 255, 255, 0.7) 180deg,
        transparent 200deg,
        transparent 360deg
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.6s ease;
    transform: rotate(0deg);
    pointer-events: none;
}

.glass-btn:hover::after {
    opacity: 1;
    transform: rotate(180deg);
}

.glass-btn:hover {
    background: var(--glass-bg-active);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow:
        var(--shadow-hover),
        0 0 30px rgba(255, 255, 255, 0.06);
}

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

/* FontAwesome 图标在按钮中的尺寸 */
.glass-btn i {
    font-size: 28px;
    margin-bottom: 8px;
}

/* ── 信息卡片 ── */
.info-section {
    border-top: 1px solid var(--border-subtle);
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--glass-bg-item);
    backdrop-filter: blur(4px);
    border-radius: var(--radius-item);
    border: 1px solid var(--border-subtle);
    line-height: 1.7;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.info-item:hover {
    background: var(--glass-bg-hover);
    border-color: rgba(255, 255, 255, 0.14);
}

.info-item strong {
    color: var(--text-primary);
}

/* ── 导航链接样式 ── */
a.info-item {
    text-decoration: none;
    color: var(--text-secondary);
    cursor: pointer;
}

/* 右侧小箭头提示可点击 */
a.info-item::after {
    content: '→';
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    font-size: 16px;
    color: var(--text-muted);
}

a.info-item:hover::after {
    opacity: 1;
    transform: translateY(-50%) translateX(4px);
}

/* ── 分区标签 ── */
.section-label {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 2px;
    padding: 0 4px 4px;
}

/* ── 底部 ── */
.footer {
    text-align: center;
    margin-top: 22px;
    font-size: 13px;
    color: var(--text-faint);
    padding-top: 18px;
    border-top: 1px solid var(--text-muted);
}

/* ═══════════════════════════════════════════
   卡片弹窗 (Modal)
   ═══════════════════════════════════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(1.5);
    -webkit-backdrop-filter: blur(24px) saturate(1.5);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-modal);
    padding: 36px 32px 28px;
    max-width: 360px;
    width: 100%;
    box-shadow:
        0 40px 80px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.10);
    transform: scale(0.92) translateY(16px);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
    text-align: center;
}

.modal-overlay.active .modal-card {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 18px;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
    padding: 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.modal-label {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}

.modal-value {
    font-size: 15px;
    color: var(--text-primary);
    background: var(--glass-bg-btn);
    padding: 10px 18px;
    border-radius: 10px;
    word-break: break-all;
    border: 1px solid var(--border-subtle);
}

.modal-action {
    display: inline-block;
    margin-top: 18px;
    padding: 10px 28px;
    border-radius: 10px;
    background: var(--glass-bg-hover);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.modal-action:hover {
    background: var(--glass-bg-active);
    border-color: var(--border-hover);
}

/* ═══════════════════════════════════════════
   响应式
   ═══════════════════════════════════════════ */
@media (max-width: 600px) {
    .glass-container {
        padding: 28px 18px 24px;
        border-radius: 20px;
    }

    h1 {
        font-size: 22px;
    }

    .button-group {
        flex-direction: column;
        gap: 12px;
    }

    .glass-btn {
        flex-direction: row;
        gap: 14px;
        padding: 16px 20px;
    }

    .glass-btn i {
        margin-bottom: 0;
    }

    .info-item {
        padding: 12px 14px;
        font-size: 13px;
    }

    .clock-time {
        font-size: 34px;
        letter-spacing: 2px;
    }

    .modal-card {
        padding: 28px 20px 24px;
    }
}

@media (max-width: 400px) {
    .glass-container {
        padding: 20px 12px 18px;
    }

    h1 {
        font-size: 18px;
        letter-spacing: 1px;
    }

    .clock-time {
        font-size: 28px;
    }
}