:root {
    --bg-color: #0d0f16;
    --accent-blue: #00d2ff;
    --text-primary: #e0e0e6;
    --text-secondary: #8292a8;
    --border-color: rgba(0, 210, 255, 0.15);
    --hover-bg: rgba(0, 210, 255, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-color);
    background: radial-gradient(circle at center, #161a29 0%, #0d0f16 100%);
    color: var(--text-primary);
    font-family: 'Fira Code', monospace;
    line-height: 1.6;
    min-height: 100vh;
}

.container { max-width: 800px; margin: 0 auto; padding: 80px 25px; }

/* Header */
.terminal-header { display: flex; align-items: center; gap: 8px; margin-bottom: 15px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.red { background: #ff5f56; } .yellow { background: #ffbd2e; } .green { background: #27c93f; }
.id-tag { font-size: 1rem; color: #8480d3; margin-left: 10px; font-weight: bold; }

.name { font-family: 'Orbitron', sans-serif; font-size: 3rem; color: #fff; }
.subtitle { color: var(--accent-blue); font-size: 0.9rem; letter-spacing: 4px; margin-top: 10px; margin-bottom: 100px; }

/* Section Spacing */
.section { margin-bottom: 100px; }
.title { font-family: 'Orbitron', sans-serif; font-size: 1.2rem; color: #fff; margin-bottom: 30px; }
.cursor { color: var(--accent-blue); margin-right: 12px; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Cards & Focus */
.card, .focus-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.focus-box:hover, .card:hover {
    border-color: var(--accent-blue);
    background: var(--hover-bg);
    transform: translateY(-5px);
}
.focus-container { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }

/* Experience & Education Items */
.exp-item { padding: 15px; border-radius: 4px; transition: 0.3s; display: flex; align-items: flex-start; margin-bottom: 10px; }
.exp-item:hover { background: rgba(255, 255, 255, 0.05); padding-left: 30px; }
.year { color: var(--accent-blue); font-weight: bold; min-width: 120px; font-size: 0.95rem; }
.exp-content h3 { font-size: 1.1rem; color: #fff; margin-bottom: 5px; }
.exp-content p { font-size: 0.9rem; color: var(--text-secondary); }

/* Tech Stack */
.tech-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.tech-item { 
    border: 1px solid var(--border-color); padding: 8px 20px; font-size: 0.85rem; color: var(--text-secondary);
    transition: 0.3s;
}
.tech-item:hover { background: var(--accent-blue); color: #000; font-weight: bold; box-shadow: 0 0 15px var(--accent-blue); }

/* Contact 強化設計 */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
.contact-btn {
    display: flex;
    align-items: center;
    background: rgba(0, 210, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 20px 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 4px;
}
.contact-btn:hover {
    background: rgba(0, 210, 255, 0.1);
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.2);
    transform: translateX(10px); /* 懸停時向右滑動 */
}
.contact-label {
    color: var(--accent-blue);
    font-weight: bold;
    font-size: 0.8rem;
    width: 100px;
    letter-spacing: 2px;
}
.contact-value {
    color: #fff;
    font-size: 1.1rem; /* 字體加大 */
    font-weight: 500;
}

/* Footer */
footer { text-align: center; border-top: 1px solid var(--border-color); padding: 60px 0; margin-top: 40px; opacity: 0.3; font-size: 0.75rem; }

@media (max-width: 600px) { 
    .focus-container { grid-template-columns: 1fr; }
    .contact-btn { flex-direction: column; align-items: flex-start; gap: 5px; }
}
/* Repo Card Styles */
.repo-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.repo-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 25px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.repo-card:hover {
    border-color: var(--accent-blue);
    background: var(--hover-bg);
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 10px 25px rgba(0, 210, 255, 0.1);
}

.repo-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.folder-icon { font-size: 1.2rem; }

.repo-header h3 {
    color: var(--accent-blue);
    font-size: 1.1rem;
    font-family: 'Fira Code', monospace;
}

.repo-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 15px;
}

.repo-meta {
    font-size: 0.75rem;
    color: #555;
}

.tech-tag-mini {
    background: rgba(0, 210, 255, 0.1);
    padding: 2px 8px;
    border-radius: 2px;
    color: var(--accent-blue);
}