/* ============================================================
   toast.css — 全站 Toast 通知控件
   赛博毛玻璃 + 发光边框 + 进度条倒计时 + FLIP 堆叠位移
   依赖: themes.css (--accent-cyan/--ease-out/--radius-* 等变量)
   ============================================================ */

:root {
    --toast-success: #00ff88;
    --toast-error: #ff3333;
    --toast-warning: #ffd700;
    --toast-info: #00f5d4;
    --toast-bg: color-mix(in srgb, var(--accent-cyan) 8%, transparent);
    --toast-border: rgba(255, 255, 255, 0.1);
    --toast-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* 浅色主题覆盖 (与 nav 一致, 同色公式自动适配) */
body.theme-light-simple {
    --toast-bg: color-mix(in srgb, var(--accent-cyan) 8%, transparent);
    --toast-border: rgba(0, 0, 0, 0.08);
    --toast-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* ---------- 容器 ---------- */
.gl-toast-container {
    position: fixed;
    top: 80px;
    right: 1.5rem;
    z-index: 100000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    max-width: calc(100vw - 3rem);
}

@media (max-width: 768px) {
    .gl-toast-container {
        top: 70px;
        right: 0.75rem;
        left: 0.75rem;
        max-width: none;
        align-items: stretch;
    }
}

/* ---------- 单条 Toast (外层: 堆叠位移) ---------- */
.gl-toast {
    position: relative;
    min-width: 280px;
    max-width: 380px;
    pointer-events: auto;
    /* 堆叠位移动画: 新 toast 推入时旧条下移, 销毁时下方条上移 */
    transition: transform 320ms var(--ease-out);
    will-change: transform;
}

/* ---------- 内层: 视觉样式 + 入场出场 ---------- */
.gl-toast-inner {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px 14px 14px;
    background: var(--toast-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid color-mix(in srgb, var(--accent-cyan) 22%, transparent);
    border-radius: var(--radius-md);
    box-shadow: var(--toast-shadow);
    font-family: var(--btn-font);
    overflow: hidden;

    /* 入场初始态 */
    opacity: 0;
    transform: translateX(120%) scale(0.95);
    transition:
        opacity 360ms var(--ease-out),
        transform 360ms var(--ease-out);
}

.gl-toast.show .gl-toast-inner {
    opacity: 1;
    transform: translateX(0) scale(1);
}

.gl-toast.dismissing .gl-toast-inner {
    opacity: 0;
    transform: translateX(120%) scale(0.95);
    transition:
        opacity 300ms var(--ease-in-out),
        transform 300ms var(--ease-in-out);
}

/* 左侧发光指示条 */
.gl-toast-inner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--toast-accent, var(--toast-info));
    box-shadow: 0 0 12px var(--toast-accent, var(--toast-info));
}

/* 顶部细微扫描线 */
.gl-toast-inner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        color-mix(in srgb, var(--accent-cyan) 50%, transparent),
        transparent
    );
    opacity: 0.6;
}

/* ---------- 类型颜色 ---------- */
.gl-toast.success { --toast-accent: var(--toast-success); }
.gl-toast.error   { --toast-accent: var(--toast-error); }
.gl-toast.warning { --toast-accent: var(--toast-warning); }
.gl-toast.info    { --toast-accent: var(--toast-info); }

/* ---------- 图标 ---------- */
.gl-toast-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-top: 1px;
    color: var(--toast-accent, var(--toast-info));
    filter: drop-shadow(0 0 6px color-mix(in srgb, var(--toast-accent, var(--toast-info)) 60%, transparent));
}

.gl-toast-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* ---------- 内容区 ---------- */
.gl-toast-content {
    flex: 1;
    min-width: 0;
}

.gl-toast-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 2px;
    letter-spacing: 0.02em;
}

.gl-toast-message {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.45;
    word-break: break-word;
    white-space: pre-line; /* 支持消息内 \n 换行 (如好友申请的两行文案) */
}

/* ---------- 关闭按钮 ---------- */
.gl-toast-close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: color var(--dur-press) var(--ease-out),
                background var(--dur-press) var(--ease-out);
}

.gl-toast-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.gl-toast-close svg {
    width: 14px;
    height: 14px;
}

/* ---------- 操作按钮 (可选) ---------- */
.gl-toast-action {
    flex-shrink: 0;
    margin-top: 8px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: inherit;
    color: var(--toast-accent, var(--toast-info));
    background: color-mix(in srgb, var(--toast-accent, var(--toast-info)) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--toast-accent, var(--toast-info)) 30%, transparent);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--dur-press) var(--ease-out),
                transform var(--dur-press) var(--ease-out);
}

.gl-toast-action:hover {
    background: color-mix(in srgb, var(--toast-accent, var(--toast-info)) 22%, transparent);
}

.gl-toast-action:active {
    transform: scale(0.96);
}

/* 操作按钮变体: 勾(成功) / 叉(错误) / 中性 */
.gl-toast-action.success {
    color: var(--toast-success);
    background: color-mix(in srgb, var(--toast-success) 12%, transparent);
    border-color: color-mix(in srgb, var(--toast-success) 30%, transparent);
}
.gl-toast-action.success:hover {
    background: color-mix(in srgb, var(--toast-success) 22%, transparent);
}
.gl-toast-action.error {
    color: var(--toast-error);
    background: color-mix(in srgb, var(--toast-error) 12%, transparent);
    border-color: color-mix(in srgb, var(--toast-error) 30%, transparent);
}
.gl-toast-action.error:hover {
    background: color-mix(in srgb, var(--toast-error) 22%, transparent);
}
.gl-toast-action.default {
    color: var(--text-muted);
    background: color-mix(in srgb, var(--text-muted) 10%, transparent);
    border-color: color-mix(in srgb, var(--text-muted) 25%, transparent);
}
.gl-toast-action.default:hover {
    background: color-mix(in srgb, var(--text-muted) 18%, transparent);
}

/* ---------- 进度条 ---------- */
.gl-toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: transparent;
    overflow: hidden;
}

.gl-toast-progress-bar {
    height: 100%;
    width: 100%;
    background: var(--toast-accent, var(--toast-info));
    box-shadow: 0 0 8px var(--toast-accent, var(--toast-info));
    transform-origin: left center;
    transition: transform linear;
}