/* =========================================
   Custom Design System (Apple Geek Style)
========================================= */

/* 浅色模式变量 */
:root {
    --bg-color: #f5f5f7;
    --grid-color: rgba(0, 0, 0, 0.04);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent-blue: #0071e3;
    --card-bg: rgba(255, 255, 255, 0.65);
    --card-border: rgba(255, 255, 255, 0.8);
    --card-shadow: rgba(0, 0, 0, 0.03);
    --card-hover-bg: rgba(255, 255, 255, 0.85);
    --card-hover-shadow: rgba(0, 0, 0, 0.06);
    --modal-bg: rgba(255, 255, 255, 0.9);
    --modal-overlay: rgba(0, 0, 0, 0.3);
    --btn-secondary-bg: #f2f2f7;
    --btn-secondary-hover: #e5e5ea;
    --tag-bg: #f3f4f6;
    --tag-text: #4b5563;
    --footer-border: #f3f4f6;
    --timeline-line: #e5e7eb;
    --timeline-dot: #d1d5db;
    --icon-filter: invert(0%);
}

/* 深色模式变量 */
[data-theme="dark"] {
    --bg-color: #0d0d0f;
    --grid-color: rgba(255, 255, 255, 0.03);
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --accent-blue: #0a84ff;
    --card-bg: rgba(30, 30, 32, 0.65);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-shadow: rgba(0, 0, 0, 0.3);
    --card-hover-bg: rgba(40, 40, 42, 0.85);
    --card-hover-shadow: rgba(0, 0, 0, 0.5);
    --modal-bg: rgba(44, 44, 46, 0.95);
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --btn-secondary-bg: #3a3a3c;
    --btn-secondary-hover: #48484a;
    --tag-bg: #2c2c2e;
    --tag-text: #a1a1a6;
    --footer-border: #2c2c2e;
    --timeline-line: #3a3a3c;
    --timeline-dot: #48484a;
    --icon-filter: invert(100%);
}

body {
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px; /* 更大的网格，更大气 */
    color: var(--text-primary);
    font-family: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 隐藏滚动条但保留功能 */
::-webkit-scrollbar { width: 0px; }

/* === 动画系统 (优化版：更加柔和) === */
.reveal-up {
    opacity: 0;
    /* 减少位移距离，从40px改为30px，减少僵硬感 */
    transform: translateY(30px) scale(0.98); 
    /* 使用更平滑的缓动曲线 */
    transition: all 1.0s cubic-bezier(0.2, 0.8, 0.2, 1);
    filter: blur(8px); /* 初始带一点模糊，实现更梦幻的淡入 */
}
.reveal-up.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

/* Hello 轮播 */
#hero-text { transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1); }

/* === Bento 卡片样式 (核心) === */
.bento-card {
    background: var(--card-bg);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid var(--card-border);
    box-shadow: 0 8px 32px var(--card-shadow);
    border-radius: 24px;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.4s ease, background 0.3s ease;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.bento-card:hover {
    transform: translateY(-4px) scale(1.005);
    box-shadow: 0 16px 48px var(--card-hover-shadow);
    background: var(--card-hover-bg);
    z-index: 10;
}

/* iOS 风格 Action Sheet 模态框 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--modal-overlay);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.ios-action-sheet {
    background: var(--modal-bg);
    backdrop-filter: blur(30px);
    width: 90%;
    max-width: 360px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    transform: scale(0.9) translateY(20px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    padding: 24px;
    text-align: center;
}
.modal-overlay.open .ios-action-sheet {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.action-btn {
    display: block;
    width: 100%;
    padding: 14px;
    margin-top: 10px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary { background: var(--accent-blue); color: white; }
.btn-secondary { background: var(--btn-secondary-bg); color: var(--text-primary); }
.btn-primary:hover { background: var(--accent-blue); filter: brightness(1.1); }
.btn-secondary:hover { background: var(--btn-secondary-hover); }

/* Toast 提示 */
#toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 14px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 10px;
}
#toast.show { transform: translateX(-50%) translateY(0); }

/* 主题切换按钮 - 导航栏内样式 */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    color: var(--text-primary);
    padding: 0;
    margin: 0;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

.theme-toggle i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.theme-toggle:active i {
    transform: scale(0.9);
}

/* 深色模式下的特定样式调整 */
[data-theme="dark"] .text-black { color: var(--text-primary) !important; }
[data-theme="dark"] .text-gray-500 { color: var(--text-secondary) !important; }
[data-theme="dark"] .text-gray-400 { color: #8e8e93 !important; }
[data-theme="dark"] .text-gray-300 { color: #636366 !important; }
[data-theme="dark"] .text-gray-800 { color: #f5f5f7 !important; }
[data-theme="dark"] .text-gray-700 { color: #e5e5ea !important; }
[data-theme="dark"] .text-gray-600 { color: #a1a1a6 !important; }
[data-theme="dark"] .bg-gray-50 { background-color: var(--tag-bg) !important; }
[data-theme="dark"] .bg-gray-100 { background-color: var(--tag-bg) !important; }
[data-theme="dark"] .bg-gray-200 { background-color: var(--timeline-line) !important; }
[data-theme="dark"] .bg-gray-300 { background-color: var(--timeline-dot) !important; }
[data-theme="dark"] .border-gray-100 { border-color: var(--footer-border) !important; }
[data-theme="dark"] .border-gray-200 { border-color: var(--timeline-line) !important; }
[data-theme="dark"] .bg-white { background-color: var(--bg-color) !important; }
[data-theme="dark"] .bg-blue-50 { background-color: rgba(10, 132, 255, 0.15) !important; }
[data-theme="dark"] .text-blue-600 { color: var(--accent-blue) !important; }
[data-theme="dark"] footer { background-color: var(--bg-color) !important; }
[data-theme="dark"] .group:hover .bg-gray-100 { background-color: var(--btn-secondary-hover) !important; }
[data-theme="dark"] .hover\:text-gray-600:hover { color: #a1a1a6 !important; }
[data-theme="dark"] .hover\:text-black:hover { color: var(--text-primary) !important; }
[data-theme="dark"] .group:hover .text-gray-400 { color: var(--text-secondary) !important; }
[data-theme="dark"] .border-blue-500 { border-color: var(--accent-blue) !important; }

/* 模态框取消按钮悬停效果 */
.modal-cancel-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 16px;
}
.modal-cancel-btn:hover {
    color: var(--text-primary) !important;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 95%;
    max-width: 650px;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    padding: 12px 24px;
    box-shadow: 0 8px 32px var(--card-shadow);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 1;
}

/* 导航栏按钮统一样式 - 唯一有效定义 */
.navbar-item {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

/* 主题切换按钮图片样式 */
#theme-toggle img,
.theme-toggle img {
    width: 20px;
    height: 20px;
    filter: var(--icon-filter);
    display: block;
}

/* 语言切换按钮 */
#language-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

#language-toggle i {
    font-size: 18px;
    display: block;
}

.navbar-container:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 48px var(--card-hover-shadow);
}

.navbar-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.15);
}

[data-theme="dark"] .navbar-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* 语言切换按钮 */
.language-menu-container {
    position: relative;
}

.language-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

/* 语言下拉菜单 */
.language-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 12px;
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 12px 48px var(--card-shadow);
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 1001;
    overflow: hidden;
}

.language-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-menu-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.language-menu-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .language-menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.language-menu-item.active {
    background: rgba(10, 132, 255, 0.1);
}

.language-code {
    font-size: 16px;
    font-weight: bold;
    margin-right: 12px;
    width: 24px;
    text-align: center;
}

.language-info {
    flex: 1;
}

.language-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.language-code-full {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.language-check {
    font-size: 14px;
    color: var(--accent-blue);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.language-menu-item.active .language-check {
    opacity: 1;
    visibility: visible;
}

/* 品牌logo */
.navbar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.navbar-logo:hover {
    transform: scale(1.1);
}

.navbar-logo img {
    height: 40px;
    transition: opacity 0.3s ease;
}

.logo-light {
    display: none;
}

.logo-dark {
    display: block;
}

[data-theme="dark"] .logo-light {
    display: block;
}

[data-theme="dark"] .logo-dark {
    display: none;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .navbar {
        width: 95%;
    }
    
    .navbar-container {
        padding: 8px 16px;
    }
    
    .navbar-logo img {
        height: 32px;
    }
    
    .navbar-item {
        font-size: 16px;
        width: 36px;
        height: 36px;
        transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }
}