/**
 * nav.css - 顶部导航栏样式
 */

/* === 顶部导航栏 === */
.top-nav {
    height: 50px;
    background-color: var(--nav-bg);
    border-bottom: 1px solid #333;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
    z-index: 100;
}

.logo {
    font-weight: bold;
    font-size: 1.1rem;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-item {
    cursor: pointer;
    padding: 10px 18px;
    border-radius: 12px;
    color: #999;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.02);
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(16, 163, 127, 0.15), rgba(16, 163, 127, 0.05));
    opacity: 0;
    transition: opacity 0.3s;
    border-radius: 12px;
}

.nav-item:hover { 
    color: #fff; 
    border-color: rgba(16, 163, 127, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.nav-item:hover::before {
    opacity: 1;
}

.nav-item.active { 
    color: #fff; 
    font-weight: 600; 
    box-shadow: 0 2px 10px var(--nav-shadow-color, rgba(16, 163, 127, 0.2)), inset 0 1px 0 rgba(255,255,255,0.1);
}
.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--nav-accent, var(--accent-color));
    border-radius: 3px 3px 0 0;
}

/* 🌈 每个导航项的独特颜色主题 - 默认显示颜色 */

/* ✨ 灵感 - 绿色 (默认主题色) */
.nav-item[data-view="inspiration"] {
    --nav-accent: #10a37f;
    --nav-shadow-color: rgba(16, 163, 127, 0.3);
    color: #10a37f;
    background: linear-gradient(135deg, rgba(16, 163, 127, 0.1), rgba(16, 163, 127, 0.05));
    border-color: rgba(16, 163, 127, 0.2);
}
.nav-item[data-view="inspiration"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(16, 163, 127, 0.3), rgba(16, 163, 127, 0.15));
    border-color: rgba(16, 163, 127, 0.5);
}
.nav-item[data-view="inspiration"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(16, 163, 127, 0.35), rgba(16, 163, 127, 0.2));
    border-color: rgba(16, 163, 127, 0.6);
}

/* 🎯 精准控制 - 橙色 */
.nav-item[data-view="precise-control"] {
    --nav-accent: #f59e0b;
    --nav-shadow-color: rgba(245, 158, 11, 0.3);
    color: #f59e0b;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(245, 158, 11, 0.05));
    border-color: rgba(245, 158, 11, 0.2);
}
.nav-item[data-view="precise-control"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3), rgba(245, 158, 11, 0.15));
    border-color: rgba(245, 158, 11, 0.5);
}
.nav-item[data-view="precise-control"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.35), rgba(245, 158, 11, 0.2));
    border-color: rgba(245, 158, 11, 0.6);
}

/* 一键同款图库 - 紫色 */
.nav-item[data-view="samestyle"] {
    --nav-accent: #a855f7;
    --nav-shadow-color: rgba(168, 85, 247, 0.3);
    color: #a855f7;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(168, 85, 247, 0.05));
    border-color: rgba(168, 85, 247, 0.2);
}
.nav-item[data-view="samestyle"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.3), rgba(168, 85, 247, 0.15));
    border-color: rgba(168, 85, 247, 0.5);
}
.nav-item[data-view="samestyle"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.35), rgba(168, 85, 247, 0.2));
    border-color: rgba(168, 85, 247, 0.6);
}

/* 我的图库 - 蓝色 */
.nav-item[data-view="gallery"] {
    --nav-accent: #3b82f6;
    --nav-shadow-color: rgba(59, 130, 246, 0.3);
    color: #3b82f6;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.05));
    border-color: rgba(59, 130, 246, 0.2);
}
.nav-item[data-view="gallery"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(59, 130, 246, 0.15));
    border-color: rgba(59, 130, 246, 0.5);
}
.nav-item[data-view="gallery"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), rgba(59, 130, 246, 0.2));
    border-color: rgba(59, 130, 246, 0.6);
}

/* 画师功能介绍 - 粉色 */
.nav-item[data-view="intro"] {
    --nav-accent: #ec4899;
    --nav-shadow-color: rgba(236, 72, 153, 0.3);
    color: #ec4899;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(236, 72, 153, 0.05));
    border-color: rgba(236, 72, 153, 0.2);
}
.nav-item[data-view="intro"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.3), rgba(236, 72, 153, 0.15));
    border-color: rgba(236, 72, 153, 0.5);
}
.nav-item[data-view="intro"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.35), rgba(236, 72, 153, 0.2));
    border-color: rgba(236, 72, 153, 0.6);
}

/* 🛠️ 小工具 - 青色 */
.nav-item[data-view="tools"] {
    --nav-accent: #06b6d4;
    --nav-shadow-color: rgba(6, 182, 212, 0.3);
    color: #06b6d4;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(6, 182, 212, 0.05));
    border-color: rgba(6, 182, 212, 0.2);
}
.nav-item[data-view="tools"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.3), rgba(6, 182, 212, 0.15));
    border-color: rgba(6, 182, 212, 0.5);
}
.nav-item[data-view="tools"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.35), rgba(6, 182, 212, 0.2));
    border-color: rgba(6, 182, 212, 0.6);
}

/* 🎨 国展信息 - 红棕色（艺术感） */
.nav-item[data-view="exhibition"] {
    --nav-accent: #e85d4c;
    --nav-shadow-color: rgba(232, 93, 76, 0.3);
    color: #e85d4c;
    background: linear-gradient(135deg, rgba(232, 93, 76, 0.1), rgba(232, 93, 76, 0.05));
    border-color: rgba(232, 93, 76, 0.2);
}
.nav-item[data-view="exhibition"]:hover {
    color: #fff;
    background: linear-gradient(135deg, rgba(232, 93, 76, 0.3), rgba(232, 93, 76, 0.15));
    border-color: rgba(232, 93, 76, 0.5);
}
.nav-item[data-view="exhibition"].active {
    color: #fff;
    background: linear-gradient(135deg, rgba(232, 93, 76, 0.35), rgba(232, 93, 76, 0.2));
    border-color: rgba(232, 93, 76, 0.6);
}

/* ✨ 高亮闪背景光效果 */
.nav-item.glow-effect {
    animation: navGlowPulse 3s ease-in-out infinite;
    position: relative;
}

.nav-item.glow-effect::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 14px;
    background: linear-gradient(45deg, 
        var(--nav-accent, #10a37f), 
        transparent 40%, 
        transparent 60%, 
        var(--nav-accent, #10a37f));
    background-size: 300% 300%;
    animation: glowMove 4s ease-in-out infinite;
    z-index: -1;
    opacity: 0.4;
    filter: blur(8px);
}

/* 灵感 - 绿色光晕 */
.nav-item[data-view="inspiration"].glow-effect::after {
    background: linear-gradient(45deg, #10a37f, transparent 40%, transparent 60%, #10a37f);
    background-size: 300% 300%;
}

/* 精准控制 - 橙色光晕 */
.nav-item[data-view="precise-control"].glow-effect::after {
    background: linear-gradient(45deg, #f59e0b, transparent 40%, transparent 60%, #f59e0b);
    background-size: 300% 300%;
}

/* 一键同款 - 紫色光晕 */
.nav-item[data-view="samestyle"].glow-effect::after {
    background: linear-gradient(45deg, #a855f7, transparent 40%, transparent 60%, #a855f7);
    background-size: 300% 300%;
}

/* 神奇小工具 - 青色光晕 */
.nav-item[data-view="tools"].glow-effect::after {
    background: linear-gradient(45deg, #06b6d4, transparent 40%, transparent 60%, #06b6d4);
    background-size: 300% 300%;
}

@keyframes navGlowPulse {
    0%, 100% {
        box-shadow: 0 0 5px var(--nav-accent, rgba(16, 163, 127, 0.3));
    }
    50% {
        box-shadow: 0 0 20px var(--nav-accent, rgba(16, 163, 127, 0.6)), 
                    0 0 30px var(--nav-accent, rgba(16, 163, 127, 0.3));
    }
}

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

/* 响应式 - 手机端导航 */
@media (max-width: 600px) {
    .nav-links { gap: 4px; }
    .nav-item { 
        padding: 8px 10px; 
        font-size: 0.8rem;
        border-radius: 8px;
    }
    .top-nav { padding: 0 10px; }
    .logo { font-size: 0.95rem; }
}