Update index.html

index.html

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-<!doctype html>
-<html>
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width" />
-		<title>My static Space</title>
-		<link rel="stylesheet" href="style.css" />
-	</head>
-	<body>
-		<div class="card">
-			<h1>Welcome to your static Space!</h1>
-			<p>You can modify this app directly by editing <i>index.html</i> in the Files and versions tab.</p>
-			<p>
-				Also don't forget to check the
-				<a href="https://huggingface.co/docs/hub/spaces" target="_blank">Spaces documentation</a>.
-			</p>
-		</div>
-	</body>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>ARCANE | Backend Architect</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@100;400;700&family=Noto+Serif+JP:wght@200;600;900&display=swap" rel="stylesheet">
+    
+    <style>
+        /* --- RESET & VARS --- */
+        :root {
+            --bg-color: #0a0a0a;
+            --text-main: #e0e0e0;
+            --text-muted: #888;
+            --accent-red: #cf0000;
+            --font-code: 'JetBrains Mono', monospace;
+            --font-serif: 'Noto Serif JP', serif;
+            --nav-height: 70px;
+        }
+
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+        
+        body {
+            background-color: var(--bg-color);
+            color: var(--text-main);
+            font-family: var(--font-code);
+            overflow-x: hidden;
+            line-height: 1.6;
+        }
+
+        /* --- UTILITIES --- */
+        .container {
+            max-width: 1200px;
+            margin: 0 auto;
+            padding: 0 1.5rem; /* Reduced padding for mobile */
+        }
+
+        .japanese-label {
+            font-family: var(--font-serif);
+            color: var(--accent-red);
+            font-size: 0.8rem;
+            letter-spacing: 0.1rem;
+            margin-bottom: 0.5rem;
+            display: block;
+            text-transform: uppercase;
+        }
+
+        /* --- BACKGROUND GRID --- */
+        .grid-bg {
+            position: fixed;
+            top: 0; left: 0; width: 100%; height: 100%;
+            background-image: 
+                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
+                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
+            background-size: 40px 40px;
+            z-index: -1;
+            pointer-events: none;
+        }
+
+        /* --- NAV --- */
+        nav {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            height: var(--nav-height);
+            padding: 0 1.5rem;
+            position: fixed;
+            width: 100%;
+            top: 0;
+            z-index: 100;
+            background: rgba(10, 10, 10, 0.95);
+            backdrop-filter: blur(10px);
+            border-bottom: 1px solid rgba(255,255,255,0.05);
+        }
+
+        .logo {
+            font-weight: 700;
+            font-size: 1.2rem;
+            border: 1px solid var(--text-main);
+            padding: 4px 10px;
+            z-index: 101;
+        }
+
+        /* Desktop Menu */
+        .nav-links { display: flex; gap: 2rem; }
+        .nav-links a {
+            color: var(--text-muted);
+            text-decoration: none;
+            font-size: 0.85rem;
+            transition: color 0.3s;
+        }
+        .nav-links a:hover { color: var(--accent-red); }
+
+        /* Mobile Menu Toggle (Hidden on Desktop) */
+        .menu-toggle {
+            display: none;
+            cursor: pointer;
+            z-index: 101;
+            font-size: 1.5rem;
+            color: var(--text-main);
+        }
+
+        /* --- HERO SECTION --- */
+        .hero {
+            min-height: 100vh;
+            display: flex;
+            align-items: center;
+            padding-top: var(--nav-height);
+        }
+
+        .hero-content {
+            display: grid;
+            grid-template-columns: auto 1fr;
+            gap: 4rem;
+            align-items: center;
+        }
+
+        .name-vertical {
+            font-family: var(--font-serif);
+            font-size: 5rem;
+            line-height: 1;
+            writing-mode: vertical-rl;
+            text-orientation: upright;
+            color: var(--text-main);
+            border-right: 1px solid var(--accent-red);
+            padding-right: 2rem;
+            letter-spacing: 0.5rem;
+            white-space: nowrap;
+        }
+
+        .hero-text h2 {
+            font-size: 2.5rem;
+            font-weight: 100;
+            margin-bottom: 1rem;
+            line-height: 1.2;
+        }
+
+        .hero-text p {
+            color: var(--text-muted);
+            max-width: 500px;
+            margin-bottom: 2rem;
+            font-size: 1rem;
+        }
+
+        .btn {
+            background: transparent;
+            border: 1px solid var(--accent-red);
+            color: var(--accent-red);
+            padding: 12px 35px;
+            cursor: pointer;
+            font-family: var(--font-code);
+            transition: 0.3s;
+            text-decoration: none;
+            display: inline-block;
+            font-size: 0.9rem;
+        }
+
+        .btn:hover {
+            background: var(--accent-red);
+            color: var(--bg-color);
+        }
+
+        /* --- SECTIONS --- */
+        section {
+            padding: 5rem 0;
+            border-bottom: 1px solid rgba(255,255,255,0.05);
+        }
+
+        .section-title {
+            font-size: 2rem;
+            margin-bottom: 3rem;
+            font-weight: 100;
+        }
+
+        /* --- SKILLS GRID --- */
+        .skills-grid {
+            display: grid;
+            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+            gap: 1.5rem;
+        }
+
+        .skill-card {
+            background: rgba(255,255,255,0.02);
+            border: 1px solid rgba(255,255,255,0.1);
+            padding: 1.5rem;
+            transition: 0.3s;
+        }
+
+        .skill-card h3 { margin-bottom: 1rem; font-size: 1.1rem; color: #fff; }
+        .skill-card li { margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-muted); }
+        .skill-card li::before { content: ':: '; color: var(--accent-red); }
+
+        /* --- PROJECTS --- */
+        .project-item {
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            gap: 3rem;
+            margin-bottom: 5rem;
+            align-items: center;
+        }
+
+        .project-diagram {
+            background: #0f0f0f;
+            border: 1px solid #222;
+            height: 250px;
+            position: relative;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+        }
+
+        /* --- FOOTER --- */
+        footer {
+            padding: 4rem 0 6rem 0; /* Extra bottom padding for mobile browsers */
+            text-align: center;
+            border-top: 1px solid var(--accent-red);
+            margin-top: 2rem;
+        }
+
+        .stamp {
+            width: 50px;
+            height: 50px;
+            border: 2px solid var(--accent-red);
+            border-radius: 50%;
+            color: var(--accent-red);
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            margin: 0 auto 1.5rem auto;
+            font-family: var(--font-serif);
+            font-weight: 900;
+        }
+
+        /* --- MOBILE MEDIA QUERIES --- */
+        @media (max-width: 768px) {
+            
+            /* Nav Mobile Overlay */
+            .menu-toggle { display: block; }
+            
+            .nav-links {
+                position: fixed;
+                top: 0; right: -100%;
+                width: 70%;
+                height: 100vh;
+                background: #111;
+                flex-direction: column;
+                justify-content: center;
+                align-items: center;
+                gap: 3rem;
+                transition: 0.4s ease;
+                border-left: 1px solid var(--accent-red);
+            }
+
+            .nav-links.active { right: 0; }
+            .nav-links a { font-size: 1.2rem; }
+
+            /* Hero Mobile */
+            .hero-content {
+                grid-template-columns: 1fr;
+                text-align: center;
+                gap: 2rem;
+            }
+
+            .name-vertical {
+                writing-mode: horizontal-tb;
+                border-right: none;
+                border-bottom: 1px solid var(--accent-red);
+                padding-bottom: 1rem;
+                padding-right: 0;
+                font-size: 3rem;
+                width: 100%;
+            }
+
+            .hero-text h2 { font-size: 1.8rem; }
+            
+            /* Projects Mobile */
+            .project-item {
+                grid-template-columns: 1fr;
+                gap: 2rem;
+                margin-bottom: 4rem;
+            }
+
+            /* Order: Diagram first on mobile? Optional. keeping text first is standard. */
+            
+            .container { padding: 0 1.2rem; }
+        }
+    </style>
+</head>
+<body>
+
+    <div class="grid-bg"></div>
+
+    <nav>
+        <div class="logo">ARCANE</div>
+        <div class="menu-toggle" onclick="toggleMenu()">☰</div>
+        <div class="nav-links" id="navLinks">
+            <a href="#about" onclick="toggleMenu()">01. LOGIC</a>
+            <a href="#skills" onclick="toggleMenu()">02. SYSTEM</a>
+            <a href="#projects" onclick="toggleMenu()">03. ARCHITECTURE</a>
+            <a href="#contact" onclick="toggleMenu()">04. CONTACT</a>
+        </div>
+    </nav>
+
+    <header class="hero container">
+        <div class="hero-content">
+            <h1 class="name-vertical">アーケイン</h1>
+            <div class="hero-text">
+                <span class="japanese-label">BACKEND ARCHITECT</span>
+                <h2>Logic in the<br>Shadows.</h2>
+                <p>Specialized in high-load server environments, distributed database management, and algorithmic efficiency.</p>
+                <a href="#contact" class="btn">INITIATE_CONTACT()</a>
+            </div>
+        </div>
+    </header>
+
+    <section id="skills" class="container">
+        <span class="japanese-label">ARSENAL</span>
+        <h2 class="section-title">Tech Stack</h2>
+        <div class="skills-grid">
+            <div class="skill-card">
+                <h3>Core Languages</h3>
+                <ul>
+                    <li>Python (FastAPI)</li>
+                    <li>Go (Golang)</li>
+                    <li>Rust (Systems)</li>
+                </ul>
+            </div>
+            <div class="skill-card">
+                <h3>Data & Storage</h3>
+                <ul>
+                    <li>PostgreSQL (Tuning)</li>
+                    <li>Redis Cluster</li>
+                    <li>Kafka / RabbitMQ</li>
+                </ul>
+            </div>
+            <div class="skill-card">
+                <h3>Infrastructure</h3>
+                <ul>
+                    <li>Docker & K8s</li>
+                    <li>AWS (EC2, Lambda)</li>
+                    <li>Terraform</li>
+                </ul>
+            </div>
+        </div>
+    </section>
+
+    <section id="projects" class="container">
+        <span class="japanese-label">CASE STUDIES</span>
+        <h2 class="section-title">Selected Works</h2>
+
+        <div class="project-item">
+            <div class="project-info">
+                <h3>KITSUNE | Trading Bot</h3>
+                <p style="color:var(--text-muted); font-size: 0.95rem; margin-top: 1rem;">
+                    A high-frequency trading algorithm handling 500 req/s. 
+                    <br><br>
+                    <span style="color:var(--accent-red)">> Strategy:</span> Database sharding & in-memory caching reduced latency by 90%.
+                </p>
+            </div>
+            <div class="project-diagram">
+                <div style="width: 10px; height: 10px; background: #fff; border-radius: 50%; position: absolute; left: 20%;"></div>
+                <div style="width: 60%; height: 1px; background: #333; position: absolute;"></div>
+                <div style="width: 10px; height: 10px; background: var(--accent-red); border-radius: 50%; position: absolute; right: 20%;"></div>
+                <div style="position:absolute; bottom:10px; right:10px; font-size:0.7rem; color:#555;">FIG 1.0</div>
+            </div>
+        </div>
+
+        <div class="project-item">
+            <div class="project-info">
+                <h3>RONIN | Payment Gateway</h3>
+                <p style="color:var(--text-muted); font-size: 0.95rem; margin-top: 1rem;">
+                    Fault-tolerant microservices architecture.
+                    <br><br>
+                    <span style="color:var(--accent-red)">> Strategy:</span> Implemented idempotency keys and eventual consistency models.
+                </p>
+            </div>
+            <div class="project-diagram">
+                 <div style="border: 1px dashed #444; width: 40%; height: 60%; position: absolute;"></div>
+                 <div style="width: 10px; height: 10px; background: var(--accent-red); position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);"></div>
+                 <div style="position:absolute; bottom:10px; right:10px; font-size:0.7rem; color:#555;">FIG 1.1</div>
+            </div>
+        </div>
+    </section>
+
+    <footer id="contact">
+        <div class="stamp">秘</div>
+        <h3>TRANSMISSION LINK</h3>
+        <p style="color: var(--text-muted); margin: 1rem 0;">arcane@dev.system</p>
+    </footer>
+
+    <script>
+        // Toggle Mobile Menu
+        function toggleMenu() {
+            const nav = document.getElementById('navLinks');
+            nav.classList.toggle('active');
+        }
+
+        // Scroll Animation
+        const observer = new IntersectionObserver((entries) => {
+            entries.forEach(entry => {
+                if (entry.isIntersecting) {
+                    entry.target.style.opacity = 1;
+                    entry.target.style.transform = 'translateY(0)';
+                }
+            });
+        });
+
+        document.querySelectorAll('.skill-card, .project-item').forEach((el) => {
+            el.style.opacity = 0;
+            el.style.transform = 'translateY(30px)';
+            el.style.transition = 'all 0.6s ease-out';
+            observer.observe(el);
+        });
+    </script>
+</body>
 </html>