/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #c41e3a;
    --accent-gold: #d4af37;
    --text-light: #ffffff;
    --text-dark: #1a1a2e;
    --text-gray: #666666;
    --bg-light: #f5f5f5;
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --gradient-accent: linear-gradient(135deg, #c41e3a 0%, #d4af37 100%);
}

body {
    font-family: 'Noto Sans JP', 'Zen Kaku Gothic New', sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(196, 30, 58, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    animation: pulseOverlay 8s ease-in-out infinite;
}

@keyframes pulseOverlay {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--text-light);
}

.logo-container {
    margin-bottom: 2rem;
}

.yatagarasu-symbol {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    color: var(--accent-gold);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.project-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.title-main {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

.title-sub {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 0.3em;
    color: var(--accent-gold);
    opacity: 0.9;
}

.hero-description {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    border: 2px solid var(--accent-gold);
    font-weight: 500;
    letter-spacing: 0.1em;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-light);
    border-radius: 20px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--text-light);
    border-radius: 50%;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* ===== Section Styles ===== */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.title-en {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    color: var(--primary-color);
    position: relative;
}

.title-en::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.title-ja {
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--text-gray);
}

/* ===== Concept Section ===== */
.concept-section {
    background: var(--bg-light);
}

.concept-content {
    max-width: 900px;
    margin: 0 auto;
}

.concept-text {
    text-align: center;
}

.lead-text {
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 2;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.description-text {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-gray);
}

/* ===== Policy Section ===== */
.policy-section {
    background: white;
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.policy-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--accent-color);
}

.policy-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.policy-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.policy-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.policy-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-gray);
}

/* ===== Team Section ===== */
.team-section {
    background: var(--gradient-dark);
    color: var(--text-light);
}

.team-section .title-en {
    color: var(--text-light);
}

.team-section .title-en::after {
    background: var(--accent-gold);
}

.team-section .title-ja {
    color: rgba(255, 255, 255, 0.7);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.team-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}

.team-icon {
    font-size: 3rem;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.team-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: 0.05em;
}

.team-dept {
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
}

.team-line {
    width: 60px;
    height: 3px;
    background: var(--accent-gold);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* ===== Features Section ===== */
.features-section {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-item {
    position: relative;
    padding: 40px 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-item:hover {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.feature-number {
    position: absolute;
    top: -15px;
    right: 30px;
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-gold);
    opacity: 0.2;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-gray);
}

/* ===== Vision Section ===== */
.vision-section {
    background: white;
}

.vision-content {
    max-width: 900px;
    margin: 0 auto;
}

.vision-box {
    background: var(--gradient-dark);
    padding: 60px 50px;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.vision-box::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 8rem;
    font-family: serif;
    color: rgba(212, 175, 55, 0.2);
    line-height: 1;
}

.vision-text {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
    line-height: 2.2;
    color: var(--text-light);
    text-align: center;
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0 30px;
}

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

.footer-logo h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.footer-logo p {
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: var(--accent-gold);
    margin-bottom: 30px;
}

.footer-info {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-info p {
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-tagline {
    color: var(--accent-gold);
    font-weight: 500;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .title-main {
        font-size: 3rem;
    }
    
    .title-sub {
        font-size: 0.9rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .title-en {
        font-size: 2rem;
    }
    
    .lead-text {
        font-size: 1.1rem;
    }
    
    .description-text {
        font-size: 0.95rem;
    }
    
    .policy-grid,
    .team-grid,
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .vision-box {
        padding: 40px 30px;
    }
    
    .vision-text {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2.5rem;
    }
    
    .yatagarasu-symbol {
        width: 80px;
        height: 80px;
    }
}