@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@100;300;400;500;700;900&display=swap');

:root {
    --primary-color: #0a6efd;
    --secondary-color: #0a2540;
    --accent-color: #00d4ff;
    --text-color: #333;
    --light-bg: #f5f9ff;
    --dark-bg: #0f172a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    overflow-x: hidden;
}

.dark-mode {
    background-color: var(--dark-bg);
    color: #f1f5f9;
}

.dark-mode .bg-white {
    background-color: #1e293b !important;
}

.dark-mode .text-gray-800 {
    color: #f1f5f9 !important;
}

.dark-mode .text-gray-600 {
    color: #cbd5e1 !important;
}

.dark-mode .border-gray-200 {
    border-color: #334155 !important;
}

#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

.dark-mode .glass-card {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-item {
    position: relative;
    padding-left: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background-color: var(--primary-color);
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 10px;
    height: 10px;
    width: 10px;
    border-radius: 50%;
    background-color: var(--accent-color);
}

.skill-bar {
    position: relative;
    height: 8px;
    border-radius: 4px;
    background-color: #e2e8f0;
    overflow: hidden;
}

.skill-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
}

.dark-mode .skill-bar {
    background-color: #334155;
}

.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    color: white;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(10, 110, 253, 0.3);
}

.social-icon {
    transition: all 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-3px);
    color: var(--primary-color);
}

.navbar {
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.dark-mode .navbar.scrolled {
    background-color: rgba(30, 41, 59, 0.9);
}

.mobile-menu {
    transition: transform 0.3s ease-in-out;
}

.mobile-menu.hidden {
    transform: translateX(-100%);
}

@media (max-width: 768px) {
    .timeline-item {
        padding-left: 20px;
    }

    .skill-name {
        font-size: 0.875rem;
    }
}

/* 加载动画 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.dark-mode .loader {
    background-color: var(--dark-bg);
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-circle {
    width: 50px;
    height: 50px;
    border: 5px solid #e2e8f0;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 滚动指示器 */
.scroll-indicator {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
}

.scroll-indicator.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-indicator:hover {
    transform: translateY(-3px);
    background-color: var(--secondary-color);
}

/* Floating nav styles */
.floating-nav a.floating-link {
    display: inline-block;
    min-width: 56px;
    text-align: center;
}

.floating-link.active-floating {
    background-color: var(--primary-color) !important;
    color: white !important;
}

@media (max-width: 768px) {
    .floating-nav { display: none !important; }
}