/* ============================================
   Minecraft 分发中心 - 样式表
   主题：暗色 + Minecraft 风格配色
   ============================================ */

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

:root {
    /* 颜色变量 */
    --color-bg: #1a1a2e;
    --color-bg-card: #16213e;
    --color-bg-card-hover: #1e2a4a;
    --color-primary: #4ade80;
    --color-primary-dark: #22c55e;
    --color-primary-glow: rgba(74, 222, 128, 0.3);
    --color-secondary: #60a5fa;
    --color-accent: #f59e0b;
    --color-danger: #ef4444;
    --color-danger-bg: rgba(239, 68, 68, 0.1);
    --color-success: #22c55e;
    --color-success-bg: rgba(34, 197, 94, 0.1);
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-dark: #1e293b;
    --color-border: #334155;
    --color-input-bg: #0f172a;
    --color-nav-bg: rgba(15, 23, 42, 0.95);

    /* 间距 */
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--color-primary-glow);

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(74, 222, 128, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.05) 0%, transparent 50%);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ---------- 导航栏 ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: 0 1rem;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-logo:hover {
    text-decoration: none;
    filter: brightness(1.1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--color-text);
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-dark);
    box-shadow: 0 2px 8px rgba(74, 222, 128, 0.3);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 222, 128, 0.4);
    text-decoration: none;
    color: var(--color-text-dark);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-text-muted);
    text-decoration: none;
    color: var(--color-text);
}

.btn-block {
    width: 100%;
}

/* ---------- 主内容 ---------- */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 1.5rem 3rem;
}

/* ---------- Hero 区域 ---------- */
.hero {
    text-align: center;
    padding: 3rem 0 2rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- 认证区域 ---------- */
.auth-section {
    max-width: 440px;
    margin: 2rem auto;
}

.auth-tabs {
    display: flex;
    background: var(--color-bg-card);
    border-radius: var(--radius);
    padding: 0.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--color-border);
}

.tab-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: calc(var(--radius) - 4px);
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--color-text);
}

.tab-btn.active {
    background: var(--color-primary);
    color: var(--color-text-dark);
}

.auth-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.auth-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.card-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ---------- 表单 ---------- */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.form-group input {
    padding: 0.75rem 1rem;
    background: var(--color-input-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

.link {
    color: var(--color-primary);
    font-size: 0.9rem;
}

/* ---------- 表单消息 ---------- */
.form-message {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    display: none;
    animation: slideUp 0.3s ease;
}

.form-message.success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.form-message.error {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.form-message.info {
    background: rgba(96, 165, 250, 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(96, 165, 250, 0.3);
}

/* ---------- 验证区域 ---------- */
.verify-section {
    max-width: 500px;
    margin: 2rem auto;
}

.verify-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.verify-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

.verify-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.verify-card p {
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.verify-hint {
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.verify-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* ---------- 下载区域 ---------- */
.downloads-section {
    padding: 2rem 0;
}

.section-header {
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

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

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.download-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.download-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.download-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.download-version {
    font-size: 0.85rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.download-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.download-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

/* ---------- 用户状态卡片 ---------- */
.user-status-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    max-width: 600px;
}

.user-status-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

.status-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.status-label {
    color: var(--color-text-muted);
    min-width: 100px;
}

.status-value {
    font-weight: 600;
}

.status-value.verified {
    color: var(--color-success);
}

.status-value.unverified {
    color: var(--color-danger);
}

/* ---------- 加载动画 ---------- */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

#loading-text {
    color: var(--color-text);
    font-size: 1rem;
}

/* ---------- 下载 Toast ---------- */
.download-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 2000;
}

.download-toast.show {
    transform: translateX(0);
}

.toast-icon {
    font-size: 1.5rem;
}

.toast-title {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.9rem;
}

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

/* ---------- 回调页面 ---------- */
.callback-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.callback-card {
    text-align: center;
    padding: 3rem;
}

.callback-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 2rem;
}

/* ---------- 页脚 ---------- */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 2rem 1rem;
    margin-top: 4rem;
    background: rgba(0, 0, 0, 0.2);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ---------- 动画 ---------- */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {

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

    50% {
        transform: translateY(-10px);
    }
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .main-content {
        padding: 80px 1rem 2rem;
    }

    .auth-card {
        padding: 1.5rem;
    }

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

    .verify-actions {
        flex-direction: column;
    }

    .verify-actions .btn {
        width: 100%;
    }

    .nav-container {
        height: 56px;
    }
}

@media (max-width: 480px) {
    .auth-tabs {
        flex-direction: column;
        gap: 0.25rem;
    }

    .tab-btn {
        padding: 0.6rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}