/* ===========================
   main.css - 主样式文件
   包含: 重置样式、布局、组件、响应式
   主题变量由 colors/*.css 提供
   =========================== */

/* ----- 自定义字体 ----- */
@font-face {
    font-family: "Fusion Pixel";
    src: url("fonts/fusion-pixel-10px-proportional-zh_hans.ttf") format("truetype");
    font-display: swap;
}
@font-face {
    font-family: "Sky Heart Clear Serif";
    src: url("fonts/SkyHeartClearSerifTC-Regular.ttf") format("truetype");
    font-display: swap;
}
@font-face {
    font-family: "Liyu Shoushu";
    src: url("fonts/LiyuShoushu.ttf") format("truetype");
    font-display: swap;
}
@font-face {
    font-family: "Kai Traditional";
    src: url("fonts/Arial Unicode.ttf") format("truetype");
    font-display: swap;
}
@font-face {
    font-family: "Lemi Xiaoyuti";
    src: url("fonts/lemixiaoyuti.ttf") format("truetype");
    font-display: swap;
}

/* ----- 重置 & 基础 ----- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

/* ----- 导航栏 ----- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--nav-bg);
    color: var(--nav-text);
    transition: background-color 0.4s ease, color 0.4s ease;
    box-shadow: 0 2px 10px var(--shadow);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--nav-text);
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--nav-text);
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    padding: 0.3rem 0;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--nav-link-hover);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--nav-link-hover);
}

.nav-links a:hover::after {
    width: 100%;
}

/* 主题切换器 */
.theme-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.theme-btn {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.theme-btn.active {
    border-color: var(--nav-text);
    transform: scale(1.15);
}

.theme-btn:hover {
    transform: scale(1.1);
}

/* 各主题按钮预览色 (纯色，无渐变) */
.theme-btn[data-theme="ammo-8"] {
    background-color: #89a257;
}
.theme-btn[data-theme="cc-29"] {
    background-color: #4b80ca;
}
.theme-btn[data-theme="chasm"] {
    background-color: #ca60ae;
}
.theme-btn[data-theme="oil6"] {
    background-color: #8b6d9c;
}
.theme-btn[data-theme="vinik24"] {
    background-color: #8b5580;
}

/* 语言切换器 (下拉式) */
.lang-switcher {
    position: relative;
    display: inline-block;
    flex-shrink: 0;
    padding-left: 0.5rem;
    border-left: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
}

/* 触发器按钮 */
.lang-trigger {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    height: 32px;
    padding: 0 0.65rem 0 0.75rem;
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.15));
    border-radius: 8px;
    background-color: var(--nav-bg, rgba(0, 0, 0, 0.1));
    color: var(--nav-text);
    font-family: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.lang-trigger:hover {
    border-color: var(--accent, #8b6d9c);
    background-color: var(--bg-secondary, var(--nav-bg));
}

.lang-trigger:active {
    transform: translateY(1px);
}

.lang-trigger-arrow {
    font-size: 0.6rem;
    opacity: 0.7;
    transition: transform 0.25s ease;
}

.lang-switcher.open .lang-trigger-arrow {
    transform: rotate(180deg);
}

.lang-switcher.open .lang-trigger {
    border-color: var(--accent, #8b6d9c);
    background-color: var(--bg-secondary, var(--nav-bg));
}

/* 下拉面板 */
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    padding: 0.4rem;
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.12));
    border-radius: 10px;
    background-color: var(--card-bg, #ffffff);
    color: var(--text-primary);
    box-shadow: var(--hover-shadow, 0 8px 24px rgba(0, 0, 0, 0.12));
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    z-index: 100;
}

.lang-switcher.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

/* 下拉选项 */
.lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 0.8rem;
    border-radius: 7px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
    font-family: inherit;
    font-size: 0.85rem;
}

.lang-option:hover {
    background-color: var(--accent-bg, rgba(139, 109, 156, 0.1));
}

.lang-option.active {
    background-color: var(--accent-color, #8b6d9c);
    color: #ffffff;
}

.lang-option-label {
    font-weight: 500;
}

.lang-option-hello {
    font-size: 0.75rem;
    opacity: 0.75;
}

.lang-option.active .lang-option-hello {
    opacity: 0.9;
}

/* 移动端汉堡菜单 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--nav-text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* ----- 主内容区域 ----- */
main {
    padding-top: 64px;
}

section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: "";
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--section-underline);
    border-radius: 3px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-top: 1rem;
}

/* ----- Hero 区域 ----- */
#home {
    max-width: none;
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--hero-bg);
    transition: background-color 0.4s ease;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
    justify-content: center;
    text-align: left;
    max-width: 1200px;
    width: 100%;
}

.avatar {
    flex-shrink: 0;
}

.avatar img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--avatar-border);
    box-shadow: 0 8px 30px var(--shadow);
    transition: transform 0.3s ease;
}

.avatar img:hover {
    transform: scale(1.05);
}

.hero-text h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.hero-text .nickname {
    color: var(--nickname-color);
}

.hero-text .nicknames {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.hero-text .tagline {
    font-size: 1.25rem;
    color: var(--tagline-color);
    font-style: italic;
}

/* ----- 关于我 ----- */
.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--section-alt-bg);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: background-color 0.4s ease;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.8;
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* ----- 爱好卡片 ----- */
.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.hobby-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--card-shadow);
}

.hobby-card:hover {
    transform: translateY(-6px);
    background-color: var(--card-bg-hover);
    box-shadow: 0 8px 25px var(--hover-shadow);
    border-color: var(--border-hover);
}

/* 每张卡片不同的顶部强调色 */
.hobby-card:nth-child(1) {
    border-top: 4px solid var(--hobby-accent-1);
}
.hobby-card:nth-child(2) {
    border-top: 4px solid var(--hobby-accent-2);
}
.hobby-card:nth-child(3) {
    border-top: 4px solid var(--hobby-accent-3);
}
.hobby-card:nth-child(4) {
    border-top: 4px solid var(--hobby-accent-4);
}
.hobby-card:nth-child(5) {
    border-top: 4px solid var(--hobby-accent-5);
}

.hobby-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    margin-bottom: 1rem;
    font-size: 2rem;
    line-height: 1;
}

/* 每张卡片图标不同的背景色 */
.hobby-card:nth-child(1) .hobby-icon {
    background-color: var(--hobby-icon-bg-1);
}
.hobby-card:nth-child(2) .hobby-icon {
    background-color: var(--hobby-icon-bg-2);
}
.hobby-card:nth-child(3) .hobby-icon {
    background-color: var(--hobby-icon-bg-3);
}
.hobby-card:nth-child(4) .hobby-icon {
    background-color: var(--hobby-icon-bg-4);
}
.hobby-card:nth-child(5) .hobby-icon {
    background-color: var(--hobby-icon-bg-5);
}

.hobby-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.hobby-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ----- 社交链接 ----- */
.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.2rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.2rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px var(--card-shadow);
}

.social-link:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--hover-shadow);
}

/* 每个链接悬停时不同的边框色 */
.social-link:nth-child(1):hover {
    border-color: var(--social-hover-1);
}
.social-link:nth-child(2):hover {
    border-color: var(--social-hover-2);
}
.social-link:nth-child(3):hover {
    border-color: var(--social-hover-3);
}
.social-link:nth-child(4):hover {
    border-color: var(--social-hover-4);
}
.social-link:nth-child(5):hover {
    border-color: var(--social-hover-5);
}
.social-link:nth-child(6):hover {
    border-color: var(--social-hover-6);
}

.social-link img {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

/* 深色主题下 SVG 图标反色处理 */
[data-theme="ammo-8"] .social-link img,
[data-theme="chasm"] .social-link img {
    filter: invert(0.9);
}

.social-link:hover img {
    transform: scale(1.15);
}

.social-info {
    display: flex;
    flex-direction: column;
}

.social-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.social-handle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ----- 页脚 ----- */
footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 2rem 1.5rem;
    transition: background-color 0.4s ease, color 0.4s ease;
}

footer p {
    margin: 0.3rem 0;
    font-size: 0.9rem;
}

/* ----- 响应式: 平板 ----- */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    /* 导航栏 */
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: var(--nav-bg);
        flex-direction: column;
        gap: 0;
        overflow: hidden;
        transition: height 0.3s ease;
        z-index: 999;
    }

    .nav-links.open {
        height: calc(100vh - 64px);
        padding: 2rem 0;
        gap: 1.5rem;
        align-items: center;
    }

    .nav-links a {
        font-size: 1.2rem;
    }

    .menu-toggle {
        display: flex;
    }

    /* 主题切换器在移动端缩小 */
    .theme-switcher {
        gap: 0.3rem;
    }

    .theme-btn {
        width: 20px;
        height: 20px;
    }

    /* 语言切换器移动端适配 */
    .lang-switcher {
        padding-left: 0.3rem;
    }

    .lang-trigger {
        height: 28px;
        padding: 0 0.5rem;
        font-size: 0.72rem;
        border-radius: 6px;
    }

    .lang-trigger-arrow {
        font-size: 0.5rem;
    }

    .lang-dropdown {
        top: calc(100% + 6px);
        min-width: 170px;
        padding: 0.3rem;
        border-radius: 8px;
    }

    .lang-option {
        padding: 0.5rem 0.65rem;
        font-size: 0.8rem;
    }

    .lang-option-hello {
        font-size: 0.7rem;
    }

    /* Hero 区域 */
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .avatar img {
        width: 120px;
        height: 120px;
    }

    /* 区块间距 */
    section {
        padding: 2.5rem 1rem;
    }

    /* 卡片网格 */
    .hobbies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .hobby-card {
        padding: 1.5rem 1rem;
    }

    .hobby-icon {
        width: 56px;
        height: 56px;
        font-size: 1.6rem;
    }

    /* 社交链接 */
    .social-links {
        grid-template-columns: 1fr;
    }

    .about-content {
        padding: 2rem 1.5rem;
    }
}

/* ----- 响应式: 手机 ----- */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero-text h1 {
        font-size: 1.5rem;
    }

    .hobbies-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    nav {
        padding: 0 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }
}

/* ----- 动画 ----- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#home .hero-content,
#about .about-content,
.hobby-card,
.social-link {
    animation: fadeInUp 0.6s ease both;
}

.hobby-card:nth-child(2) {
    animation-delay: 0.1s;
}
.hobby-card:nth-child(3) {
    animation-delay: 0.2s;
}
.hobby-card:nth-child(4) {
    animation-delay: 0.3s;
}
.hobby-card:nth-child(5) {
    animation-delay: 0.4s;
}