/* 20th Anniversary Theme & Animations */
:root {
    --color-anniv-gold: #c5a059;
    --color-anniv-gold-light: #e6c88b;
    --color-anniv-navy: #1a2a44;
    --color-anniv-navy-dark: #0f1a2e;
    --color-anniv-white: #ffffff;
    --color-anniv-bg: #fdfbf7;
}

body {
    background-color: var(--color-anniv-bg);
    color: var(--color-anniv-navy);
}

/* Typography Overrides */
h1,
h2,
h3 {
    font-family: 'Times New Roman', 'Noto Serif JP', serif;
    color: var(--color-anniv-navy-dark);
}

.text-gold {
    color: var(--color-anniv-gold);
}

/* Hero Section */
.hero-anniv {
    background: linear-gradient(135deg, var(--color-anniv-navy-dark) 0%, var(--color-anniv-navy) 100%);
    color: var(--color-anniv-white);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    perspective: 1000px;
}

.hero-anniv::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(197, 160, 89, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    animation: pulse-glow 8s infinite alternate;
}

.hero-anniv h1 {
    color: var(--color-anniv-white);
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 20px;
    letter-spacing: 0.05em;
    opacity: 0;
    transform: scale(3);
    /* Start HUGE for "Dodoon" effect */
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.8s ease-out;
}

.hero-anniv h1.active {
    opacity: 1;
    transform: scale(1);
}

.hero-anniv p {
    color: var(--color-anniv-gold-light);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease-out;
    transition-delay: 0.4s;
}

.hero-anniv p.active {
    opacity: 1;
    transform: translateY(0);
}

/* Message Section */
.message-section {
    padding: 100px 0;
    text-align: center;
}

.ceo-image-placeholder {
    width: 150px;
    height: 150px;
    background-color: #ddd;
    border-radius: 50%;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    border: 3px solid var(--color-anniv-gold);
}

/* Timeline Section */
.timeline-section {
    padding: 100px 0;
    background-color: #fff;
    overflow: hidden;
    /* Prevent horizontal scroll from fly-ins */
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 60px auto 0;
    padding: 20px 0;
}

/* Vertical Line */
.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 4px;
    /* Thicker line */
    background: #eee;
    z-index: 1;
    border-radius: 4px;
}

/* The Animated Color Fill for the Line */
.timeline::after {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    width: 4px;
    background: var(--color-anniv-gold);
    z-index: 1;
    height: 0%;
    /* Start empty */
    transition: height 2.5s cubic-bezier(0.45, 0.05, 0.55, 0.95);
    border-radius: 4px;
}

.timeline.active::after {
    height: 100%;
}

.timeline-item {
    position: relative;
    margin-bottom: 80px;
    padding-left: 70px;
    opacity: 0;
    /* Hidden initially */
    z-index: 2;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

/* Dot */
.timeline-item::before {
    content: '';
    position: absolute;
    left: 10px;
    /* Center on 4px line (20 + 4/2 - 24/2 = 10) */
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--color-anniv-gold);
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 0 0 3px var(--color-anniv-gold-light);
    z-index: 3;
    transform: scale(0);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.timeline-item.active::before {
    transform: scale(1);
    transition-delay: 0.2s;
}

/* Fly-in Animations for Content */
.timeline-year {
    display: inline-block;
    background: var(--color-anniv-navy);
    color: #fff;
    padding: 5px 20px;
    border-radius: 30px;
    font-weight: bold;
    margin-bottom: 15px;
    font-family: 'Noto Sans JP', sans-serif;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.timeline-content {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transform: translateX(50px);
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s ease;
}

.timeline-item.active {
    opacity: 1;
}

.timeline-item.active .timeline-content {
    transform: translateX(0);
}

/* Vision Section */
.vision-section {
    padding: 100px 0;
    background: var(--color-anniv-navy-dark);
    color: #fff;
    text-align: center;
}

.vision-section h2 {
    color: var(--color-anniv-gold);
}

.vision-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(197, 160, 89, 0.3);
    margin-top: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.vision-card h3 {
    color: var(--color-anniv-gold);
}

/* Keyframes */
@keyframes pulse-glow {
    0% {
        transform: scale(1);
        opacity: 0.1;
    }

    100% {
        transform: scale(1.1);
        opacity: 0.2;
    }
}

/* Responsive Timeline for Desktop */
@media (min-width: 768px) {
    .timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline-item {
        width: 50%;
        padding-left: 0;
        padding-right: 50px;
        margin-left: 0;
        text-align: right;
        transform: translateX(-100px);
        /* Slide in from left default */
        transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.8s ease;
    }

    .timeline-item:nth-child(even) {
        margin-left: 50%;
        padding-right: 0;
        padding-left: 50px;
        text-align: left;
        transform: translateX(100px);
        /* Slide in from right */
    }

    .timeline-item.active {
        transform: translateX(0);
    }

    /* Content reset for desktop (moved container instead) */
    .timeline-content {
        transform: none;
        transition: none;
        display: inline-block;
        text-align: inherit;
        width: 100%;
    }

    /* Dots positioning */
    .timeline-item::before {
        left: auto;
        right: -14px;
        /* Center on line */
    }

    .timeline-item:nth-child(even)::before {
        left: -14px;
        right: auto;
    }
}