/* ========================================
   PROJECT CHIMERA - サイバーパンクスタイル
   ======================================== */

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ベーススタイル */
:root {
    /* ベースカラー */
    --color-black: #0A0A0A;
    --color-midnight: #001F3F;
    --color-dark-purple: #2A0A2A;
    --color-charcoal: #151515;
    
    /* ネオンアクセント */
    --color-electric-blue: #00FFFF;
    --color-cyber-pink: #FF00FF;
    --color-neon-green: #39FF14;
    --color-bright-yellow: #FFFF00;
    
    /* サブアクセント */
    --color-silver: #808080;
    --color-white: #FFFFFF;
    
    /* トランジент */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s ease;
    --transition-slow: 0.6s ease;
}

/* フォント */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Source+Code+Pro:wght@300;400;600&display=swap');

body {
    font-family: 'Source Code Pro', monospace;
    background-color: var(--color-black);
    color: var(--color-white);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    letter-spacing: 3px;
    line-height: 1.2;
}

/* ========================================
   ローディングスクリーン
   ======================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-midnight) 100%);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-content {
    text-align: center;
}

.loading-bar {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-bottom: 20px;
    overflow: hidden;
}

.loading-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-cyber-pink));
    transition: width 0.3s ease;
}

.loading-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--color-neon-green);
    text-shadow: 0 0 10px var(--color-neon-green);
}

/* ========================================
   ナビゲーション
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 5%;
    z-index: 100;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 900;
    color: var(--color-white);
    text-decoration: none;
    position: relative;
    padding: 5px 15px;
    transition: var(--transition-fast);
}

.logo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-electric-blue);
    transition: width 0.3s ease;
}

.logo:hover::after {
    width: 70%;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-list a {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--color-white);
    text-decoration: none;
    position: relative;
    padding: 5px 0;
    transition: var(--transition-fast);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-neon-green);
    transition: width 0.3s ease;
}

.nav-list a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    transition: var(--transition-fast);
    position: relative;
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.95) 0%, rgba(0, 31, 63, 0.98) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 50px;
    text-align: center;
}

.glint {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 40%, rgba(255, 255, 255, 0.1) 50%, transparent 60%);
    animation: glint 3s infinite;
}

@keyframes glint {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
    100% { transform: translateX(100%); }
}

.glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 100px var(--color-electric-blue);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hero:hover .glow {
    opacity: 0.5;
}

.glitch {
    position: relative;
    display: inline-block;
    margin-bottom: 30px;
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    color: var(--color-white);
}

.hero-text {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
}

.hero-text:nth-child(1) {
    animation: glitch-top 2s infinite;
}

.hero-text:nth-child(2) {
    animation: glitch-mid 2s infinite 1s;
}

.hero-text:nth-child(3) {
    animation: glitch-bot 2s infinite 2s;
}

@keyframes glitch-top {
    0%, 100% { clip: clip(0, 80px, 0, 0); transform: translate(0); }
    20% { clip: clip(60px, 80px, 0, 0); transform: translate(-3px, 3px); }
    40% { clip: clip(120px, 160px, 0, 0); transform: translate(3px, -3px); }
    60% { clip: clip(80px, 120px, 0, 0); transform: translate(-3px, 3px); }
    80% { clip: clip(200px, 240px, 0, 0); transform: translate(3px, -3px); }
}

@keyframes glitch-mid {
    0%, 100% { clip: clip(40px, 80px, 0, 0); transform: translate(0); }
    25% { clip: clip(140px, 180px, 0, 0); transform: translate(3px, -3px); }
    50% { clip: clip(60px, 100px, 0, 0); transform: translate(-3px, 3px); }
    75% { clip: clip(200px, 240px, 0, 0); transform: translate(3px, -3px); }
}

@keyframes glitch-bot {
    0%, 100% { clip: clip(160px, 200px, 0, 0); transform: translate(0); }
    30% { clip: clip(40px, 80px, 0, 0); transform: translate(-3px, 3px); }
    60% { clip: clip(100px, 140px, 0, 0); transform: translate(3px, -3px); }
    90% { clip: clip(20px, 60px, 0, 0); transform: translate(-3px, 3px); }
}

.hero-title {
    font-size: 48px;
    margin-bottom: 30px;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-cyber-pink), var(--color-neon-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.title-line {
    display: block;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-silver);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    border: 2px solid var(--color-white);
    position: relative;
    overflow: hidden;
    transition: var(--transition-fast);
    z-index: 2;
    cursor: pointer;
}

.btn-primary {
    background: transparent;
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-cyber-pink);
    color: var(--color-black);
    border-color: var(--color-cyber-pink);
}

.btn-glitch {
    overflow: hidden;
}

.btn-glitch::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-electric-blue);
    transition: left 0.3s;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn-text {
    position: relative;
    z-index: 3;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
}

.btn:hover .btn-text {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.scanline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-electric-blue), transparent);
    animation: scan 3s linear infinite;
}

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

.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    opacity: 0.8;
}

.neon-frame {
    position: relative;
    width: 300px;
    height: 400px;
    background: var(--color-charcoal);
    border: 2px solid var(--color-electric-blue);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 0 50px var(--color-electric-blue);
    overflow: hidden;
}

.neon-frame::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid var(--color-cyber-pink);
    border-radius: 12px;
    animation: border-glow 3s infinite;
}

@keyframes border-glow {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.screen-display {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.screen-header {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: var(--color-bright-yellow); }
.dot.yellow { background: var(--color-bright-yellow); }
.dot.green { background: var(--color-neon-green); }

.screen-content {
    flex: 1;
    position: relative;
    padding: 10px;
}

.data-stream {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.data-line {
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    color: var(--color-neon-green);
    white-space: nowrap;
    animation: data-scroll 10s linear infinite;
}

@keyframes data-scroll {
    0% { opacity: 0; transform: translateY(100%); }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; transform: translateY(-100%); }
}

.neon-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 30px var(--color-neon-green);
    opacity: 0.3;
    animation: glow-pulse 2s infinite alternate;
}

@keyframes glow-pulse {
    0% { opacity: 0.3; }
    100% { opacity: 0.8; }
}

/* ========================================
   セクションスタイル
   ======================================== */
.section {
    padding: 120px 5%;
    position: relative;
}

.section-light {
    background: var(--color-black);
}

.section-dark {
    background: var(--color-midnight);
}

.section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.7);
    z-index: 1;
}

.section-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-cyber-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    margin-bottom: 20px;
}

.glitch-effect {
    position: relative;
    display: inline-block;
}

.glitch-effect::before,
.glitch-effect::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
}

.glitch-effect::before {
    left: 2px;
    text-shadow: -2px 0 var(--color-cyber-pink);
    animation: glitch-anim 3s infinite linear alternate-reverse;
    clip: rect(0, 900px, 0, 0);
}

.glitch-effect::after {
    left: -2px;
    text-shadow: 2px 0 var(--color-neon-green);
    animation: glitch-anim2 3s infinite linear alternate-reverse;
    clip: rect(0, 900px, 0, 0);
}

@keyframes glitch-anim {
    0% { clip: rect(0, 900px, 0, 0); }
    20% { clip: rect(10px, 900px, 30px, 0); }
    40% { clip: rect(50px, 900px, 60px, 0); }
    60% { clip: rect(30px, 900px, 40px, 0); }
    80% { clip: rect(70px, 900px, 80px, 0); }
    100% { clip: rect(0, 900px, 0, 0); }
}

@keyframes glitch-anim2 {
    0% { clip: rect(0, 900px, 0, 0); }
    15% { clip: rect(60px, 900px, 70px, 0); }
    35% { clip: rect(20px, 900px, 30px, 0); }
    55% { clip: rect(80px, 900px, 90px, 0); }
    75% { clip: rect(40px, 900px, 50px, 0); }
    100% { clip: rect(0, 900px, 0, 0); }
}

.section-title {
    position: relative;
    z-index: 3;
}

.underlined {
    width: 100px;
    height: 2px;
    background: var(--color-electric-blue);
    margin: 0 auto;
    animation: underline-draw 2s ease-in-out forwards;
}

@keyframes underline-draw {
    0% { width: 0; }
    100% { width: 100px; }
}

.section-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.content-text, .content-graphic {
    flex: 1;
}

.section-lead {
    font-size: 18px;
    color: var(--color-neon-green);
    text-shadow: 0 0 10px var(--color-neon-green);
    margin-bottom: 20px;
}

/* 製品紹介セクション */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.2);
    border-color: var(--color-electric-blue);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: icon-glow 3s infinite alternate;
}

@keyframes icon-glow {
    0% { filter: drop-shadow(0 0 5px var(--color-electric-blue)); }
    100% { filter: drop-shadow(0 0 15px var(--color-electric-blue)) drop-shadow(0 0 10px var(--color-cyber-pink)); }
}

.feature-icon svg {
    width: 50px;
    height: 50px;
}

.feature-title {
    font-size: 18px;
    margin-bottom: 15px;
    background: linear-gradient(90deg, var(--color-electric-blue), var(--color-cyber-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-description {
    color: var(--color-silver);
    font-size: 14px;
    line-height: 1.6;
}

/* テクノロジーセクション */
.tech-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
}

.diagram-node {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--color-electric-blue);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    min-width: 150px;
    position: relative;
}

.diagram-node::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--color-electric-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-electric-blue);
}

.input-node { border-color: var(--color-neon-green); }
.processor-node { border-color: var(--color-cyber-pink); }
.output-node { border-color: var(--color-bright-yellow); }

.node-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 5px;
}

.node-subtitle {
    font-size: 12px;
    color: var(--color-silver);
}

.diagram-line {
    width: 4px;
    height: 100px;
    background: linear-gradient(180deg, var(--color-electric-blue), transparent);
    position: relative;
}

.diagram-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 10px;
    background: var(--color-electric-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-electric-blue);
}

.tech-description {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-description p {
    color: var(--color-silver);
    margin-bottom: 20px;
    line-height: 1.8;
}

.code-block {
    background: var(--color-black);
    border: 1px solid var(--color-electric-blue);
    border-radius: 10px;
    padding: 20px;
    overflow-x: auto;
    margin-top: 20px;
}

.code-block pre {
    margin: 0;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
}

.code-block code {
    color: var(--color-neon-green);
}

/* ロードマップセクション */
.timeline {
    position: relative;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-electric-blue), var(--color-cyber-pink));
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 20px 0;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-date {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--color-neon-green);
    text-shadow: 0 0 10px var(--color-neon-green);
    margin-bottom: 10px;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 400px;
}

.timeline-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--color-white);
}

.timeline-content p {
    color: var(--color-silver);
    font-size: 14px;
}

/* CTAセクション */
.cta-section {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-dark-purple) 100%);
    text-align: center;
}

.cta-title {
    font-size: 36px;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--color-cyber-pink), var(--color-neon-green), var(--color-electric-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(255, 0, 255, 0.5);
}

.cta-subtitle {
    font-size: 16px;
    color: var(--color-silver);
    margin-bottom: 40px;
    line-height: 1.8;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    min-width: 80px;
}

.countdown-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    font-weight: 900;
    color: var(--color-electric-blue);
    text-shadow: 0 0 15px var(--color-electric-blue);
    margin-bottom: 5px;
}

.countdown-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    color: var(--color-silver);
    text-transform: lowercase;
}

.countdown-separator {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    color: var(--color-silver);
    align-self: center;
}

.registration-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    max-width: 400px;
    margin: 0 auto 30px;
}

.form-group {
    position: relative;
    width: 100%;
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    background: transparent;
    border: 1px solid var(--color-silver);
    border-radius: 5px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    color: var(--color-white);
    outline: none;
    transition: var(--transition-fast);
}

.form-group input:focus {
    border-color: var(--color-electric-blue);
    box-shadow: 0 0 10px var(--color-electric-blue);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    color: var(--color-silver);
    pointer-events: none;
    transition: var(--transition-fast);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: 0;
    left: 10px;
    transform: translateY(0) scale(0.75);
    color: var(--color-electric-blue);
    z-index: 1;
}

.legal-info {
    font-size: 12px;
    color: var(--color-silver);
}

.legal-links {
    margin-top: 10px;
}

.legal-links a {
    color: var(--color-neon-green);
    text-decoration: none;
    transition: var(--transition-fast);
}

.legal-links a:hover {
    text-decoration: underline;
    text-shadow: 0 0 5px var(--color-neon-green);
}

/* フッター */
.footer {
    background: var(--color-black);
    padding: 40px 5% 20px;
    border-top: 1px solid var(--color-silver);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
}

.footer-logo a {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 900;
    color: var(--color-white);
    text-decoration: none;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    color: var(--color-silver);
    transition: var(--transition-fast);
}

.social-icon:hover {
    color: var(--color-electric-blue);
    text-shadow: 0 0 10px var(--color-electric-blue);
}

.social-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.footer-bottom {
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

/* パーティクル背景 */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* スクロールエフェクト */
.section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* レスポンシブデザイン */
@media (max-width: 992px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: 80px 5%;
    }
    
    .timeline {
        padding: 20px 0;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: calc(100% - 80px);
        left: 0 !important;
        text-align: left;
    }
    
    .timeline-content {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-black);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: left 0.3s ease;
    }
    
    .nav-list.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-visual {
        position: absolute;
        right: 20px;
        top: 60%;
        transform: translateY(-50%);
        width: 200px;
        height: 300px;
        opacity: 0.6;
    }
    
    .neon-frame {
        width: 100%;
        height: auto;
        padding: 15px;
    }
    
    .countdown-container {
        flex-wrap: wrap;
    }
    
    .countdown-separator {
        display: none;
    }
    
    .countdown-item {
        margin: 0 5px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 70px;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .btn {
        padding: 12px 30px;
        font-size: 12px;
    }
}

/* パーティクルスタイル */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

/* トランジション効果 */
.transition-element {
    transition: all 0.3s ease;
}

/* モバイル用簡略化 */
.mobile .hero-visual {
    display: none;
}

.mobile .hero-content {
    max-width: 100%;
    padding: 0 20px;
}

/* Safari用フォールバック */
.safari .glitch::before,
.safari .glitch::after {
    content: attr(data-text);
    position: absolute;
    opacity: 0.8;
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}