/**
 * GalaxyUI - Interactive Animation Components
 * Source: https://github.com/LZ123321/galaxy_ui- (Uiverse.io, MIT License)
 * Integrated & adapted for the blog system
 */

/* =============================================
 * 1. Galaxy Buttons (Shimmer + Glow)
 *    Adapted from: AKAspidey01, 0xnihilism
 * ============================================= */

/* Shimmer button - sweeps light across on hover */
.galaxy-btn {
    position: relative;
    overflow: hidden;
    transition: all .3s cubic-bezier(.25, .8, .25, 1);
}
.galaxy-btn::before,
.galaxy-btn::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .15), transparent);
    transition: .6s;
    pointer-events: none;
}
.galaxy-btn::before { left: -100%; }
.galaxy-btn::after { left: 100%; }
.galaxy-btn:hover::before { animation: galaxySwipeRight 1.5s infinite; }
.galaxy-btn:hover::after { animation: galaxySwipeLeft 1.5s infinite; }
@keyframes galaxySwipeRight {
    100% { transform: translateX(200%) skew(-45deg); }
}
@keyframes galaxySwipeLeft {
    100% { transform: translateX(-200%) skew(-45deg); }
}

/* Glow button - neon glow on hover */
.galaxy-btn-glow {
    position: relative;
    transition: all .3s ease;
}
.galaxy-btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(var(--primary-rgb, 37, 99, 235), .5),
                0 0 40px rgba(var(--primary-rgb, 37, 99, 235), .3);
}
.galaxy-btn-glow:active {
    transform: translateY(0);
}

/* Neumorphism button - soft 3D */
.galaxy-btn-neu {
    background: linear-gradient(145deg, var(--card-bg, #f0f0f0), var(--border, #cacaca));
    box-shadow: 5px 5px 15px rgba(0, 0, 0, .1), -5px -5px 15px rgba(255, 255, 255, .8);
    border: 1px solid rgba(0, 0, 0, .08);
    border-radius: 12px;
    transition: all .3s ease;
}
.galaxy-btn-neu:hover {
    box-shadow: 3px 3px 10px rgba(0, 0, 0, .12), -3px -3px 10px rgba(255, 255, 255, .9);
}
.galaxy-btn-neu:active {
    box-shadow: inset 3px 3px 10px rgba(0, 0, 0, .1), inset -3px -3px 10px rgba(255, 255, 255, .8);
}

/* Ripple effect */
.galaxy-ripple {
    position: relative;
    overflow: hidden;
}
.galaxy-ripple .ripple-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, .4);
    transform: scale(0);
    animation: galaxyRipple .6s linear;
    pointer-events: none;
}
@keyframes galaxyRipple {
    to { transform: scale(4); opacity: 0; }
}

/* =============================================
 * 3. Galaxy Cards (Neon Border Glow)
 *    Source: Aryan-81 - Cards
 * ============================================= */
.galaxy-card {
    position: relative;
    transition: all .4s cubic-bezier(.175, .885, .32, 1.275);
}
.galaxy-card::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(-45deg, var(--primary, #2563eb), #40c9ff, #e81cff, var(--primary, #2563eb));
    background-size: 300% 300%;
    z-index: -1;
    opacity: 0;
    transition: opacity .4s ease;
    animation: galaxyGradientShift 4s ease infinite;
}
.galaxy-card::after {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(-45deg, var(--primary, #2563eb), #40c9ff, #e81cff, var(--primary, #2563eb));
    background-size: 300% 300%;
    z-index: -2;
    opacity: 0;
    filter: blur(15px);
    transition: opacity .4s ease;
    animation: galaxyGradientShift 4s ease infinite;
}
.galaxy-card:hover::before,
.galaxy-card:hover::after {
    opacity: 1;
}
.galaxy-card:hover {
    transform: translateY(-4px);
}
@keyframes galaxyGradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* =============================================
 * 4. Galaxy Toast Notifications
 *    Adapted from: Yaya12085 - Notifications
 * ============================================= */
.galaxy-toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.galaxy-toast {
    width: 320px;
    min-height: 64px;
    background: var(--card-bg, #fff);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .12);
    pointer-events: auto;
    animation: galaxyToastIn .4s cubic-bezier(.175, .885, .32, 1.275);
    transition: all .4s ease;
    position: relative;
    overflow: hidden;
}
.galaxy-toast.galaxy-toast-out {
    animation: galaxyToastOut .3s ease forwards;
}
.galaxy-toast .toast-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
    color: #fff;
}
.galaxy-toast.success .toast-icon { background: linear-gradient(135deg, #10b981, #059669); }
.galaxy-toast.error .toast-icon { background: linear-gradient(135deg, #ef4444, #dc2626); }
.galaxy-toast.info .toast-icon { background: linear-gradient(135deg, var(--primary, #2563eb), var(--primary-dark, #1e40af)); }
.galaxy-toast.warning .toast-icon { background: linear-gradient(135deg, #f59e0b, #d97706); }

.galaxy-toast .toast-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.galaxy-toast .toast-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text, #1e293b);
}
.galaxy-toast .toast-desc {
    font-size: 13px;
    color: var(--text-light, #64748b);
}
.galaxy-toast .toast-close {
    background: none;
    border: none;
    color: var(--text-light, #94a3b8);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    border-radius: 6px;
    transition: all .2s;
    flex-shrink: 0;
}
.galaxy-toast .toast-close:hover {
    background: rgba(0, 0, 0, .06);
    color: var(--text, #1e293b);
}
.galaxy-toast .toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: rgba(var(--primary-rgb, 37, 99, 235), .6);
    animation: galaxyToastProgress var(--toast-duration, 4s) linear forwards;
}
@keyframes galaxyToastIn {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes galaxyToastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(120%); opacity: 0; }
}
@keyframes galaxyToastProgress {
    from { width: 100%; }
    to { width: 0%; }
}

/* =============================================
 * 5. Galaxy Input Focus Animation
 * ============================================= */
.galaxy-input {
    position: relative;
}
.galaxy-input input,
.galaxy-input textarea {
    transition: all .3s ease;
}
.galaxy-input::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary, #2563eb), #40c9ff);
    transition: all .3s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}
.galaxy-input:focus-within::after {
    width: 100%;
}
.galaxy-input input:focus,
.galaxy-input textarea:focus {
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb, 37, 99, 235), .12);
}

/* =============================================
 * 6. Galaxy Animated Hamburger Menu
 *    Source: ArturCodeCraft - Buttons
 * ============================================= */
.galaxy-hamburger {
    width: 36px;
    height: 36px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    background: rgba(var(--primary-rgb, 37, 99, 235), .08);
    transition: background .3s;
}
.galaxy-hamburger span {
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--text, #333);
    transition: transform .4s, opacity .3s;
}
.galaxy-hamburger:hover span:nth-child(1) {
    transform: translateY(7px) rotate(-45deg);
}
.galaxy-hamburger:hover span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}
.galaxy-hamburger:hover span:nth-child(3) {
    transform: translateY(-7px) rotate(45deg);
}

/* =============================================
 * 7. Galaxy Entrance Animations
 * ============================================= */
.galaxy-fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
}
.galaxy-fade-up.galaxy-visible {
    opacity: 1;
    transform: translateY(0);
}
.galaxy-fade-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity .6s ease, transform .6s ease;
}
.galaxy-fade-left.galaxy-visible {
    opacity: 1;
    transform: translateX(0);
}
.galaxy-fade-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity .6s ease, transform .6s ease;
}
.galaxy-fade-right.galaxy-visible {
    opacity: 1;
    transform: translateX(0);
}
.galaxy-scale-in {
    opacity: 0;
    transform: scale(.9);
    transition: opacity .6s ease, transform .6s ease;
}
.galaxy-scale-in.galaxy-visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
.galaxy-delay-1 { transition-delay: .1s; }
.galaxy-delay-2 { transition-delay: .2s; }
.galaxy-delay-3 { transition-delay: .3s; }
.galaxy-delay-4 { transition-delay: .4s; }
.galaxy-delay-5 { transition-delay: .5s; }

/* =============================================
 * 8. Galaxy Link Underline Animation
 * ============================================= */
.galaxy-link {
    position: relative;
    text-decoration: none;
    display: inline-block;
}
.galaxy-link::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary, #2563eb), #40c9ff);
    transition: width .3s ease;
    border-radius: 2px;
}
.galaxy-link:hover::after {
    width: 100%;
}

/* =============================================
 * 9. Galaxy Floating Action Button
 * ============================================= */
.galaxy-fab {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary, #2563eb), var(--primary-dark, #1e40af));
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(var(--primary-rgb, 37, 99, 235), .4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    z-index: 900;
    transition: all .3s cubic-bezier(.175, .885, .32, 1.275);
    opacity: 0;
    transform: scale(0);
}
.galaxy-fab.visible {
    opacity: 1;
    transform: scale(1);
}
.galaxy-fab:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 24px rgba(var(--primary-rgb, 37, 99, 235), .5);
}
.galaxy-fab:active {
    transform: scale(.95);
}

/* =============================================
 * 10. Galaxy Badge (Animated)
 * ============================================= */
.galaxy-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(var(--primary-rgb, 37, 99, 235), .1);
    color: var(--primary, #2563eb);
    position: relative;
    overflow: hidden;
}
.galaxy-badge::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .3), transparent);
    animation: galaxyBadgeShine 3s infinite;
}
@keyframes galaxyBadgeShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* =============================================
 * 11. Galaxy Profile Card (shy-rattlesnake-3)
 *     Source: uiverse.io/zeeshan_2112/shy-rattlesnake-3
 *     玻璃拟态个人卡片，带渐变边框、头像光环、统计信息
 * ============================================= */
.galaxy-profile-card {
    position: relative;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    padding: 40px 28px 28px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .12);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border: 1px solid rgba(255, 255, 255, .25);
    box-shadow: 0 8px 32px rgba(0, 0, 0, .12), inset 0 1px 0 rgba(255, 255, 255, .3);
    overflow: hidden;
    transition: transform .4s cubic-bezier(.175, .885, .32, 1.275), box-shadow .4s ease;
}
/* 渐变光斑装饰 */
.galaxy-profile-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        rgba(var(--primary-rgb, 37, 99, 235), .08),
        rgba(124, 58, 237, .08),
        rgba(236, 72, 153, .08),
        rgba(var(--primary-rgb, 37, 99, 235), .08)
    );
    animation: galaxyCardRotate 8s linear infinite;
    z-index: 0;
}
@keyframes galaxyCardRotate {
    to { transform: rotate(360deg); }
}
.galaxy-profile-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .4);
}
.galaxy-profile-card > * {
    position: relative;
    z-index: 1;
}
/* 头像 */
.galaxy-profile-card .gp-avatar-wrap {
    width: 96px;
    height: 96px;
    margin: 0 auto 16px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(135deg, var(--primary, #2563eb), #7c3aed, #ec4899);
    animation: galaxyCardPulse 3s ease-in-out infinite;
}
@keyframes galaxyCardPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(var(--primary-rgb, 37, 99, 235), .3); }
    50% { box-shadow: 0 0 0 8px rgba(var(--primary-rgb, 37, 99, 235), 0); }
}
.galaxy-profile-card .gp-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, .8);
}
/* 姓名/角色 */
.galaxy-profile-card .gp-name {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 4px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, .15);
}
.galaxy-profile-card .gp-role {
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, .7);
    margin: 0 0 16px;
}
/* 简介 */
.galaxy-profile-card .gp-bio {
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, .6);
    margin: 0 0 20px;
    line-height: 1.6;
}
/* 统计 */
.galaxy-profile-card .gp-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
    padding: 16px 0;
    border-top: 1px solid rgba(255, 255, 255, .12);
    border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.galaxy-profile-card .gp-stat {
    text-align: center;
}
.galaxy-profile-card .gp-stat-num {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
}
.galaxy-profile-card .gp-stat-label {
    font-size: 11px;
    color: rgba(255, 255, 255, .5);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
/* 操作按钮 */
.galaxy-profile-card .gp-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.galaxy-profile-card .gp-btn {
    flex: 1;
    padding: 10px 20px;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 10px;
    background: rgba(255, 255, 255, .08);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all .3s ease;
    backdrop-filter: blur(4px);
}
.galaxy-profile-card .gp-btn:hover {
    background: rgba(255, 255, 255, .18);
    border-color: rgba(255, 255, 255, .35);
    transform: translateY(-1px);
}
.galaxy-profile-card .gp-btn-primary {
    background: rgba(var(--primary-rgb, 37, 99, 235), .6);
    border-color: rgba(var(--primary-rgb, 37, 99, 235), .8);
}
.galaxy-profile-card .gp-btn-primary:hover {
    background: rgba(var(--primary-rgb, 37, 99, 235), .8);
    box-shadow: 0 4px 16px rgba(var(--primary-rgb, 37, 99, 235), .4);
}
/* 社交图标 */
.galaxy-profile-card .gp-social {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}
.galaxy-profile-card .gp-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .12);
    color: rgba(255, 255, 255, .7);
    font-size: 15px;
    text-decoration: none;
    transition: all .3s ease;
}
.galaxy-profile-card .gp-social a:hover {
    background: rgba(255, 255, 255, .2);
    color: #fff;
    transform: translateY(-2px) scale(1.08);
}

/* Dark mode for profile card */
body.dark-mode .galaxy-profile-card {
    background: rgba(30, 41, 59, .4);
    border-color: rgba(255, 255, 255, .08);
}

/* =============================================
 * 12. Galaxy Send Button (little-mole-12)
 *     Source: uiverse.io/geekgao/little-mole-12
 *     简洁发送按钮，灰色背景，带纸飞机图标滑动动画
 * ============================================= */
.galaxy-send-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    background: #ededed;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all .3s cubic-bezier(.4, 0, .2, 1);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    user-select: none;
}
.galaxy-send-btn .gsb-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform .3s cubic-bezier(.4, 0, .2, 1);
}
.galaxy-send-btn .gsb-text {
    transition: opacity .3s ease, transform .3s ease;
}
/* 悬浮：背景渐变 + 图标滑动 */
.galaxy-send-btn:hover {
    background: linear-gradient(135deg, var(--primary, #2563eb), #7c3aed);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 16px rgba(var(--primary-rgb, 37, 99, 235), .3);
    transform: translateY(-1px);
}
.galaxy-send-btn:hover .gsb-icon {
    transform: translateX(4px) rotate(-15deg);
}
.galaxy-send-btn:active {
    transform: translateY(0) scale(.98);
}
/* 深色变体 */
.galaxy-send-btn-dark {
    background: #1a1a2e;
    color: #ededed;
    border-color: #2a2a4e;
}
.galaxy-send-btn-dark:hover {
    background: linear-gradient(135deg, var(--primary, #2563eb), #7c3aed);
    color: #fff;
}
/* 图标-only 变体 */
.galaxy-send-btn-icon {
    padding: 10px 14px;
    gap: 0;
}
/* 暗色模式 */
body.dark-mode .galaxy-send-btn {
    background: #2a2a3e;
    color: #e0e0e0;
    border-color: #3a3a4e;
}
body.dark-mode .galaxy-send-btn:hover {
    color: #fff;
}
body.dark-mode .galaxy-toast {
    background: var(--card-bg, #1e293b);
    box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
}
body.dark-mode .galaxy-toast .toast-title {
    color: var(--text, #f1f5f9);
}
body.dark-mode .galaxy-toast .toast-desc {
    color: var(--text-light, #94a3b8);
}
body.dark-mode .galaxy-btn-neu {
    background: linear-gradient(145deg, #1e293b, #0f172a);
    box-shadow: 5px 5px 15px rgba(0, 0, 0, .3), -5px -5px 15px rgba(255, 255, 255, .05);
}
body.dark-mode .galaxy-hamburger span {
    background: var(--text, #f1f5f9);
}

/* =============================================
 * 11. Uiverse Toggle Switch (Dark Mode)
 *    来源: Uiverse.io toggle switch 组件改编
 * ============================================= */
.galaxy-toggle {
    position: relative;
    display: inline-block;
    width: 56px;
    height: 28px;
    cursor: pointer;
}
.galaxy-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}
.galaxy-toggle .toggle-slider {
    position: absolute;
    inset: 0;
    background: #d1d5db;
    border-radius: 28px;
    transition: all .3s cubic-bezier(.4, 0, .2, 1);
    overflow: hidden;
}
.galaxy-toggle .toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: all .3s cubic-bezier(.4, 0, .2, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, .2);
    z-index: 2;
}
.galaxy-toggle .toggle-slider::after {
    content: '\f185';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 7px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: #f59e0b;
    transition: all .3s;
}
.galaxy-toggle input:checked + .toggle-slider {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}
.galaxy-toggle input:checked + .toggle-slider::before {
    transform: translateX(28px);
}
.galaxy-toggle input:checked + .toggle-slider::after {
    content: '\f186';
    color: #e0e7ff;
    right: auto;
    left: 8px;
}

/* =============================================
 * 12. Skeleton Loading (骨架屏)
 * ============================================= */
.galaxy-skeleton {
    background: linear-gradient(90deg, var(--bg, #f1f5f9) 25%, var(--border, #e2e8f0) 50%, var(--bg, #f1f5f9) 75%);
    background-size: 200% 100%;
    animation: galaxyShimmer 1.5s infinite;
    border-radius: 0.5rem;
}
.galaxy-skeleton-text {
    height: 0.875rem;
    margin-bottom: 0.5rem;
    border-radius: 0.25rem;
}
.galaxy-skeleton-text:last-child {
    width: 60%;
}
.galaxy-skeleton-card {
    border-radius: var(--radius, 0.75rem);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    background: var(--card-bg, #fff);
}
.galaxy-skeleton-img {
    width: 100%;
    height: 12rem;
    margin-bottom: 1rem;
}
@keyframes galaxyShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================
 * 13. Uiverse Tooltip (悬浮提示)
 * ============================================= */
.galaxy-tooltip {
    position: relative;
    display: inline-flex;
}
.galaxy-tooltip::before, .galaxy-tooltip::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: all .25s cubic-bezier(.4, 0, .2, 1);
    pointer-events: none;
}
.galaxy-tooltip::before {
    content: attr(data-tooltip);
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: #1e293b;
    color: #fff;
    font-size: 0.75rem;
    padding: 0.35rem 0.7rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
}
.galaxy-tooltip::after {
    content: '';
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    border: 6px solid transparent;
    border-top-color: #1e293b;
    z-index: 1000;
}
.galaxy-tooltip:hover::before, .galaxy-tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* =============================================
 * 14. Heo-style Card Hover Effects
 *    参考: blog.zhheo.com 卡片悬浮效果
 * ============================================= */
.galaxy-heo-card {
    position: relative;
    border-radius: var(--radius, 0.75rem);
    overflow: hidden;
    transition: all .35s cubic-bezier(.4, 0, .2, 1);
}
.galaxy-heo-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius, 0.75rem);
    padding: 2px;
    background: linear-gradient(135deg, rgba(var(--primary-rgb, 37, 99, 235), .4), rgba(var(--primary-rgb, 37, 99, 235), 0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity .35s;
    pointer-events: none;
    z-index: 10;
}
.galaxy-heo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px -8px rgba(var(--primary-rgb, 37, 99, 235), .2), 0 4px 12px -4px rgba(0, 0, 0, .08);
}
.galaxy-heo-card:hover::before {
    opacity: 1;
}
/* Heo-style category badge */
.galaxy-heo-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.15rem 0.6rem;
    border-radius: 0.375rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: #fff;
    background: rgba(var(--primary-rgb, 37, 99, 235), .85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all .25s;
}
.galaxy-heo-badge:hover {
    background: rgba(var(--primary-rgb, 37, 99, 235), 1);
    transform: translateY(-1px);
}

/* =============================================
 * 15. Uiverse Checkbox (自定义复选框)
 * ============================================= */
.galaxy-checkbox {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    gap: 0.5rem;
    user-select: none;
}
.galaxy-checkbox input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border, #d1d5db);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    transition: all .25s;
    flex-shrink: 0;
}
.galaxy-checkbox input[type="checkbox"]:checked {
    background: var(--primary, #2563eb);
    border-color: var(--primary, #2563eb);
    animation: galaxyCheckPop .3s ease;
}
.galaxy-checkbox input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    animation: galaxyCheckSlide .2s ease;
}
.galaxy-checkbox input[type="checkbox"]:hover {
    border-color: var(--primary, #2563eb);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb, 37, 99, 235), .1);
}
@keyframes galaxyCheckPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}
@keyframes galaxyCheckSlide {
    from { opacity: 0; transform: rotate(45deg) translate(-4px, -4px); }
    to { opacity: 1; transform: rotate(45deg) translate(0, 0); }
}

/* =============================================
 * 16. Uiverse Input Focus Effect
 * ============================================= */
.galaxy-input-group {
    position: relative;
}
.galaxy-input-group input,
.galaxy-input-group textarea {
    width: 100%;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 0.625rem;
    padding: 0.6rem 1rem;
    font-size: 0.875rem;
    outline: none;
    transition: all .25s;
    background: var(--card-bg, #fff);
    color: var(--text, #1e293b);
}
.galaxy-input-group input:focus,
.galaxy-input-group textarea:focus {
    border-color: var(--primary, #2563eb);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb, 37, 99, 235), .1);
}
.galaxy-input-group label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.875rem;
    color: var(--text-light, #64748b);
    pointer-events: none;
    transition: all .2s;
    background: var(--card-bg, #fff);
    padding: 0 0.35rem;
}
.galaxy-input-group input:focus ~ label,
.galaxy-input-group input:not(:placeholder-shown) ~ label {
    top: 0;
    font-size: 0.72rem;
    color: var(--primary, #2563eb);
    font-weight: 600;
}
.galaxy-input-group textarea ~ label {
    top: 0.6rem;
    transform: translateY(0);
}
.galaxy-input-group textarea:focus ~ label,
.galaxy-input-group textarea:not(:placeholder-shown) ~ label {
    top: 0;
    font-size: 0.72rem;
    color: var(--primary, #2563eb);
    font-weight: 600;
}

/* =============================================
 * 17. Heo-style Smooth Transitions
 * ============================================= */
.galaxy-page-transition {
    animation: galaxyPageIn .4s cubic-bezier(.4, 0, .2, 1);
}
@keyframes galaxyPageIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* Stagger entrance for cards */
.galaxy-stagger-1 { animation-delay: .05s; }
.galaxy-stagger-2 { animation-delay: .1s; }
.galaxy-stagger-3 { animation-delay: .15s; }
.galaxy-stagger-4 { animation-delay: .2s; }
.galaxy-stagger-5 { animation-delay: .25s; }
.galaxy-stagger-6 { animation-delay: .3s; }

/* =============================================
 * 18. Uiverse Floating Action Button Menu
 * ============================================= */
.galaxy-fab-menu {
    position: fixed;
    right: 1.5rem;
    bottom: 5.5rem;
    z-index: 98;
}
.galaxy-fab-trigger {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--primary, #2563eb);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: 0 4px 16px rgba(var(--primary-rgb, 37, 99, 235), .35);
    transition: all .3s cubic-bezier(.4, 0, .2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}
.galaxy-fab-trigger:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb, 37, 99, 235), .45);
}
.galaxy-fab-trigger.active {
    transform: rotate(135deg);
}
.galaxy-fab-items {
    position: absolute;
    bottom: 3.5rem;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all .3s;
}
.galaxy-fab-menu.open .galaxy-fab-items {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.galaxy-fab-item {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--card-bg, #fff);
    color: var(--text, #1e293b);
    border: 1px solid var(--border, #e2e8f0);
    cursor: pointer;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .08);
    transition: all .2s;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}
.galaxy-fab-item:hover {
    transform: scale(1.1);
    color: var(--primary, #2563eb);
    border-color: var(--primary, #2563eb);
}

/* =============================================
 * 19. Uiverse Animated Badge
 * ============================================= */
.galaxy-badge-pulse {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    background: #ef4444;
    border-radius: 0.625rem;
}
.galaxy-badge-pulse::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: inherit;
    animation: galaxyBadgePulse 2s infinite;
    z-index: -1;
}
@keyframes galaxyBadgePulse {
    0% { transform: scale(1); opacity: .7; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* =============================================
 * 20. Heo-style Dark Mode Adjustments
 * ============================================= */
body.dark-mode .galaxy-toggle .toggle-slider {
    background: #374151;
}
body.dark-mode .galaxy-skeleton {
    background: linear-gradient(90deg, var(--bg) 25%, #334155 50%, var(--bg) 75%);
    background-size: 200% 100%;
}
body.dark-mode .galaxy-heo-card:hover {
    box-shadow: 0 12px 30px -8px rgba(var(--primary-rgb), .3), 0 4px 12px -4px rgba(0, 0, 0, .2);
}
body.dark-mode .galaxy-fab-item {
    background: var(--card-bg, #1e293b);
    border-color: var(--border, #334155);
    color: var(--text, #e2e8f0);
}
body.dark-mode .galaxy-tooltip::before {
    background: #0f172a;
}
body.dark-mode .galaxy-tooltip::after {
    border-top-color: #0f172a;
}
body.dark-mode .galaxy-input-group label {
    background: var(--card-bg, #1e293b);
}