/**
 * animations.css - 非暴力沟通卡片系统
 * 光影渐变动画效果集合
 */

/* 全局动画变量 */
:root {
    --primary-glow: linear-gradient(90deg, rgba(66, 133, 244, 0.2) 0%, rgba(66, 133, 244, 0) 50%, rgba(66, 133, 244, 0.2) 100%);
    --secondary-glow: linear-gradient(90deg, rgba(52, 168, 83, 0.15) 0%, rgba(52, 168, 83, 0) 50%, rgba(52, 168, 83, 0.15) 100%);
    --accent-glow: linear-gradient(90deg, rgba(234, 67, 53, 0.15) 0%, rgba(234, 67, 53, 0) 50%, rgba(234, 67, 53, 0.15) 100%);
    --neutral-glow: linear-gradient(90deg, rgba(250, 250, 250, 0.5) 0%, rgba(250, 250, 250, 0.1) 50%, rgba(250, 250, 250, 0.5) 100%);
}

/* 背景光影动画 */
.bg-glow {
    position: relative;
    overflow: hidden;
}

.bg-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 300%;
    height: 100%;
    background: var(--primary-glow);
    animation: bgGlowAnimation 8s ease-in-out infinite;
    z-index: 0;
}

.bg-glow-secondary::before {
    background: var(--secondary-glow);
    animation-delay: 1s;
}

.bg-glow-accent::before {
    background: var(--accent-glow);
    animation-delay: 2s;
}

.bg-glow-neutral::before {
    background: var(--neutral-glow);
}

.bg-glow > * {
    position: relative;
    z-index: 1;
}

@keyframes bgGlowAnimation {
    0% {
        left: -100%;
    }
    50% {
        left: 0%;
    }
    100% {
        left: -100%;
    }
}

/* 元素光晕效果 */
.glow-hover {
    transition: all 0.3s ease;
    position: relative;
}

.glow-hover::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    box-shadow: 0 0 0 0 rgba(66, 133, 244, 0.4);
    opacity: 0;
    transition: all 0.5s ease;
}

.glow-hover:hover::after {
    box-shadow: 0 0 20px 3px rgba(66, 133, 244, 0.4);
    opacity: 1;
}

.glow-hover-success::after {
    box-shadow: 0 0 0 0 rgba(52, 168, 83, 0.4);
}

.glow-hover-success:hover::after {
    box-shadow: 0 0 20px 3px rgba(52, 168, 83, 0.4);
}

.glow-hover-accent::after {
    box-shadow: 0 0 0 0 rgba(234, 67, 53, 0.4);
}

.glow-hover-accent:hover::after {
    box-shadow: 0 0 20px 3px rgba(234, 67, 53, 0.4);
}

/* 脉冲动画 */
.pulse-glow {
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(66, 133, 244, 0.4);
    }
    70% {
        box-shadow: 0 0 10px 10px rgba(66, 133, 244, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(66, 133, 244, 0);
    }
}

/* 渐变边框 */
.gradient-border {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    z-index: -1;
    background: linear-gradient(45deg, 
        rgba(66, 133, 244, 0.7), 
        rgba(52, 168, 83, 0.7), 
        rgba(234, 67, 53, 0.7), 
        rgba(251, 188, 5, 0.7));
    background-size: 400% 400%;
    animation: gradientBorder 12s ease infinite;
    border-radius: 12px;
}

.gradient-border::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    right: 1px;
    bottom: 1px;
    background: white;
    border-radius: 9px;
    z-index: -1;
}

/* 针对案例卡片的渐变边框特殊规则 */
.case-card.gradient-border::before {
    opacity: 0; /* 默认隐藏渐变效果 */
    transition: opacity 0.3s ease;
}

.case-card.gradient-border:hover::before {
    opacity: 1; /* 鼠标悬停时显示渐变效果 */
}

@keyframes gradientBorder {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 文字渐变动画 */
.text-gradient {
    background: linear-gradient(45deg, 
        #4285f4, 
        #34a853, 
        #ea4335, 
        #fbbc05);
    background-size: 300% 300%;
    animation: textGradient 6s ease infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

@keyframes textGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 页面元素淡入效果 */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.fade-in-up-delay-1 {
    animation-delay: 0.2s;
}

.fade-in-up-delay-2 {
    animation-delay: 0.4s;
}

.fade-in-up-delay-3 {
    animation-delay: 0.6s;
}

.fade-in-up-delay-4 {
    animation-delay: 0.8s;
}

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

/* 光影卡片效果 */
.glow-card {
    position: relative;
    overflow: hidden;
    transition: all 0.5s ease;
}

.glow-card::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: -100%;
    left: -100%;
    background: radial-gradient(
        circle at center,
        rgba(255, 255, 255, 0.8) 0%,
        rgba(255, 255, 255, 0) 70%
    );
    transition: all 0.5s ease;
}

.glow-card:hover::before {
    top: -50%;
    left: -50%;
}

/* 按钮光影效果 */
.btn-glow {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0) 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        rgba(255, 255, 255, 0) 100%);
    transform: translateX(-100%);
    transition: transform 0s;
}

.btn-glow:hover::after {
    transform: translateX(100%);
    transition: transform 1s ease;
}

/* NVC四要素脉动效果 */
.nvc-element-pulse {
    animation: nvcElementPulse 3s infinite;
    transform-origin: center;
}

.nvc-element-pulse-delay-1 {
    animation-delay: 0.5s;
}

.nvc-element-pulse-delay-2 {
    animation-delay: 1s;
}

.nvc-element-pulse-delay-3 {
    animation-delay: 1.5s;
}

@keyframes nvcElementPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 首页特殊背景效果 */
.hero-background {
    position: relative;
    overflow: hidden;
}

.hero-background::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(
        ellipse at center,
        rgba(66, 133, 244, 0.1) 0%,
        rgba(255, 255, 255, 0) 70%
    );
    animation: heroBgRotate 20s infinite linear;
}

@keyframes heroBgRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* 练习页面提交按钮效果 */
.submit-button-glow {
    position: relative;
    overflow: hidden;
}

.submit-button-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at center,
        rgba(255, 255, 255, 0.8) 0%,
        rgba(255, 255, 255, 0) 80%
    );
    opacity: 0;
    transition: opacity 0.5s ease;
}

.submit-button-glow:hover::before {
    opacity: 0.5;
    animation: submitButtonPulse 2s infinite;
}

@keyframes submitButtonPulse {
    0% {
        transform: scale(0.95);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(0.95);
        opacity: 0.5;
    }
}