/* ===== VARIABLES ===== */
:root {
    --bg-color: #050505;
    --text-main: #EDEDED;
    --text-muted: #888888;
    --accent-glow: rgba(16, 185, 129, 0.15); /* Subtle green glow for Aegis */
    --accent-border: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(20, 20, 20, 0.4);
    
    --font-en: 'Inter', sans-serif;
    --font-tc: 'Noto Sans TC', sans-serif;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-en);
    /* Fallback to Noto Sans for TC characters */
    font-family: var(--font-en), var(--font-tc);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Canvas Background */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
    font-weight: 300;
    letter-spacing: 0.05em;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 4rem;
    z-index: 100;
    mix-blend-mode: difference;
}

.logo {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: #fff;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 3rem;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #fff;
}

/* ===== SECTIONS ===== */
.section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0;
}

/* Scroll Reveal classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Hero Section */
.hero {
    align-items: center;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    margin-bottom: 5rem;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    opacity: 0.5;
}

.scroll-indicator span {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-indicator .line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, #fff, transparent);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Section Headers */
.section-header {
    margin-bottom: 4rem;
}

.section-tag {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    color: #fff;
}

/* About Section */
.content-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    line-height: 2;
}

/* Ventures Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* Glassmorphism Cards */
.venture-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--accent-border);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-decoration: none;
    color: inherit;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    transition: transform 0.4s ease, border-color 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.venture-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-content {
    position: relative;
    z-index: 2;
}

/* Aegis Card Specifics */
.aegis-card .card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: 1;
    pointer-events: none;
}

.aegis-card:hover .card-glow {
    opacity: 1;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.pulse-green {
    background-color: #10B981;
    box-shadow: 0 0 10px #10B981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.status-text {
    font-size: 0.75rem;
    color: #10B981;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.project-title {
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    flex-grow: 1;
}

.explore-link {
    font-size: 0.9rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.aegis-card:hover .explore-link {
    gap: 1rem;
}

/* Placeholder Card */
.placeholder-card {
    border: 1px dashed var(--accent-border);
    background: transparent;
    opacity: 0.5;
}

.placeholder-card:hover {
    transform: none;
    border-color: var(--text-muted);
}

/* Contact Section */
.contact-box {
    border-left: 1px solid var(--accent-border);
    padding-left: 2rem;
}

.contact-box p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact-email {
    display: inline-block;
    color: #fff;
    font-size: 1.5rem;
    text-decoration: none;
    letter-spacing: 0.05em;
    position: relative;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 1px;
    background: #fff;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.contact-email:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--accent-border);
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .navbar {
        padding: 1.5rem 2rem;
    }
    
    .nav-links {
        display: none; /* Keep it ultra minimal on mobile, or implement hamburger */
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
}