/* ==========================================
   文件名：css/animations.css
   功能：定义所有动画关键帧和过渡效果
   ========================================== */

/* --- 1. 基础动画 --- */

/* 闪烁效果 (用于光标、提示点) */
@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* 脉冲效果 (用于状态指示灯) */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

/* 呼吸效果 (用于背景元素) */
@keyframes breathe {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* --- 2. 文字特效 --- */

/* 打字机效果 (配合JS使用) */
@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

/* 文字闪烁 (用于重要警告) */
@keyframes text-flash {
    0%, 100% { color: var(--main-color); text-shadow: 0 0 10px var(--main-color); }
    50% { color: var(--alert-color); text-shadow: 0 0 15px var(--alert-color); }
}

/* 文字抖动 (用于错误提示) */
@keyframes text-shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-2px); }
    20%, 40%, 60%, 80% { transform: translateX(2px); }
}

/* --- 3. 故障艺术效果 (Glitch) --- */
@keyframes glitch-anim {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
    100% { transform: translate(0); }
}

@keyframes glitch-anim-2 {
    0% { transform: translate(0); }
    20% { transform: translate(2px, -2px); }
    40% { transform: translate(2px, 2px); }
    60% { transform: translate(-2px, -2px); }
    80% { transform: translate(-2px, 2px); }
    100% { transform: translate(0); }
}

/* 应用故障效果的类 */
.glitch {
    animation: glitch-anim 0.3s infinite;
}

.glitch-hard {
    animation: glitch-anim-2 0.2s infinite;
}

/* --- 4. 扫描线动画 --- */
@keyframes scanline {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

/* 移动的扫描线 */
.scanline-moving {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: rgba(0, 255, 0, 0.8);
    box-shadow: 0 0 10px var(--main-color);
    animation: scanline 4s linear infinite;
    pointer-events: none;
    z-index: 9999;
}

/* --- 5. 进度与加载动画 --- */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.shimmer {
    background: linear-gradient(90deg, 
        var(--main-color-dim) 0%, 
        var(--main-color) 50%, 
        var(--main-color-dim) 100%);
    background-size: 200% auto;
    animation: shimmer 2s linear infinite;
}

/* 环形加载动画 */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 255, 0, 0.2);
    border-top-color: var(--main-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* --- 6. 霓虹灯效果 --- */
@keyframes neon-flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow: 
            0 0 4px #fff,
            0 0 11px #fff,
            0 0 19px #fff,
            0 0 40px var(--main-color),
            0 0 80px var(--main-color),
            0 0 90px var(--main-color),
            0 0 100px var(--main-color),
            0 0 150px var(--main-color);
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}

.neon-text {
    animation: neon-flicker 1.5s infinite alternate;
}

/* --- 7. 波纹扩散效果 (用于按钮点击) --- */
@keyframes ripple-effect {
    0% { transform: scale(0); opacity: 0.5; }
    100% { transform: scale(4); opacity: 0; }
}

.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 255, 0, 0.3);
    animation: ripple-effect 0.6s linear;
    pointer-events: none;
}

/* --- 8. 渐入/渐出动画 --- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* 应用渐入效果的类 */
.fade-in { animation: fadeIn 0.5s ease forwards; }
.fade-in-up { animation: fadeInUp 0.5s ease forwards; }
.fade-in-down { animation: fadeInDown 0.5s ease forwards; }
.fade-in-left { animation: fadeInLeft 0.5s ease forwards; }
.fade-in-right { animation: fadeInRight 0.5s ease forwards; }

/* --- 9. 震动效果 --- */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake { animation: shake 0.5s; }

/* --- 10. 3D翻转效果 --- */
@keyframes flip-in {
    0% { transform: perspective(400px) rotateY(90deg); opacity: 0; }
    40% { transform: perspective(400px) rotateY(-20deg); }
    70% { transform: perspective(400px) rotateY(10deg); }
    100% { transform: perspective(400px) rotateY(0); opacity: 1; }
}

.flip-in { animation: flip-in 0.8s ease forwards; }

/* --- 11. 打字机删除效果 --- */
@keyframes typing-cursor {
    0%, 100% { border-color: transparent; }
    50% { border-color: var(--main-color); }
}

.typing-cursor {
    border-right: 2px solid;
    animation: typing-cursor 0.7s step-end infinite;
}

/* --- 12. 数据流动画 (用于背景) --- */
@keyframes data-flow {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.data-flow {
    background: linear-gradient(90deg, 
        transparent, 
        var(--main-color), 
        transparent);
    background-size: 200% 200%;
    animation: data-flow 3s linear infinite;
}