/**
 * ShareHub 2.0 - Soft Anime Base Styles
 */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    background-image: url('../images/background_anime.png');
    background-size: cover;
    background-position: center bottom;
    /* Anchor to bottom for landscape */
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 100vh;
    transition: background-color var(--transition-base), color var(--transition-base);
    position: relative;
    overflow-x: hidden;
}

/* 装饰性叠加层 - Dot Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(var(--color-bg-primary) 15%, transparent 16%),
        radial-gradient(var(--color-bg-primary) 15%, transparent 16%);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    opacity: 0.3;
    /* Adjusted for visibility over image */
    pointer-events: none;
    z-index: -1;
    mask-image: linear-gradient(to bottom, transparent, black);
    /* Fade in pattern */
    -webkit-mask-image: linear-gradient(to bottom, transparent, black);
}

/* Floating Particles (Simulated via CSS) */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.4) 0%, transparent 10%),
        radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.3) 0%, transparent 8%);
    background-size: 100% 100%;
    pointer-events: none;
    z-index: -1;
    animation: float-particles 20s infinite alternate ease-in-out;
}

/* Animations Keyframes */
@keyframes float-particles {
    0% {
        transform: translateY(0) scale(1);
    }

    100% {
        transform: translateY(-20px) scale(1.1);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-6px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes bounce-in {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }

    50% {
        transform: scale(1.02);
        opacity: 1;
    }

    70% {
        transform: scale(0.98);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes pulse-soft {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 128, 171, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(255, 128, 171, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 128, 171, 0);
    }
}

/* Animation Classes */
.animate-float {
    animation: float 4s ease-in-out infinite;
}

.animate-appear {
    animation: bounce-in 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* 暗色模式背景调整 */
[data-theme="dark"] body {
    background-color: var(--color-bg-primary);
    background-blend-mode: multiply;
    /* Darken the anime sky */
}

[data-theme="dark"] body::before {
    opacity: 0.1;
}

/* 链接 */
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
    text-decoration: none;
    text-shadow: 0 0 8px var(--color-accent-light);
}

/* 标题 */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.5em;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

/* 段落 */
p {
    margin-bottom: 1em;
    color: var(--color-text-secondary);
}

/* 图片 */
img,
video {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

/* 按钮基础 */
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: var(--radius-full);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    filter: grayscale(0.5);
}

/* 表单元素基础 */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 4px var(--color-accent-light);
    outline: none;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-text-tertiary);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
    border: 2px solid transparent;
    background-clip: content-box;
}

/* 选中文本 */
::selection {
    background: var(--color-accent);
    color: white;
}

/* 焦点样式 */
:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px var(--color-border-focus);
}

/* 布局容器 */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-narrow {
    max-width: 960px;
}

.container-wide {
    max-width: 1440px;
}

/* Flex 工具类 */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.gap-xl {
    gap: var(--spacing-xl);
}

/* Grid 工具类 */
.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* 间距工具类 */
.mt-xs {
    margin-top: var(--spacing-xs);
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-xs {
    margin-bottom: var(--spacing-xs);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.p-xs {
    padding: var(--spacing-xs);
}

.p-sm {
    padding: var(--spacing-sm);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

.p-xl {
    padding: var(--spacing-xl);
}

/* 文本工具类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-sm {
    font-size: 0.875rem;
}

.text-base {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-secondary {
    color: var(--color-text-secondary);
}

/* 响应式 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}