:root {
    /* Colors — Nordic Minimalism with Warm Earth */
    --bg-main: #F5F3F0;
    --bg-alt-1: #FAF8F5;
    --bg-alt-2: #EDEAE5;
    --accent: #6B7B6A;
    --accent-dark: #556354;
    --text-main: #2C2C2C;
    --text-muted: #6A6A6A;
    --text-light: #999;
    --border: #E0DDD8;
    --border-light: rgba(0, 0, 0, 0.06);
    --white: #FFFFFF;

    /* Spacing */
    --spacing-xl: 180px;
    --spacing-lg: 140px;
    --spacing-md: 100px;
    --spacing-sm: 60px;
    --container-text: 680px;
    --container-wide: 920px;

    /* Typography */
    --font-serif-jp: 'Noto Serif JP', 'Hiragino Mincho ProN', serif;
    --font-serif-en: 'Cormorant Garamond', serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-serif-jp);
    font-weight: 300;
    font-size: 15px;
    line-height: 2.2;
    letter-spacing: 0.08em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-weight: 400;
    letter-spacing: 0.12em;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ================================================
   Layout Utilities
   ================================================ */
.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 32px;
    max-width: var(--container-wide);
}

.container-text {
    max-width: var(--container-text);
}

.section-spacing {
    padding: var(--spacing-lg) 0;
}

.section-bg-alt {
    background-color: var(--bg-alt-1);
}

.section-label {
    display: block;
    font-family: var(--font-serif-en);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--accent);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-align: center;
}

.section-title {
    font-size: 1.6rem;
    font-weight: 400;
    text-align: center;
    margin-bottom: 80px;
    letter-spacing: 0.18em;
}

/* ================================================
   Animations
   ================================================ */
.fade-in,
.fade-in-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 1s cubic-bezier(0.23, 1, 0.32, 1),
                transform 1s cubic-bezier(0.23, 1, 0.32, 1);
}

.fade-in.visible,
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   Dot Navigation
   ================================================ */
.dot-nav {
    position: fixed;
    right: 28px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dot-nav-item span {
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-main);
    opacity: 0.15;
    transition: opacity 0.4s ease, transform 0.3s ease;
}

.dot-nav-item:hover span,
.dot-nav-item.active span {
    opacity: 0.6;
    transform: scale(1.3);
}

/* ================================================
   1. Hero
   ================================================ */
.hero {
    position: relative;
    height: 100vh;
    height: 100dvh;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg img,
.hero-bg picture {
    width: 100%;
    height: 100%;
}

.hero-bg img {
    object-fit: cover;
    object-position: center center;
    /* Film-tone: slight desaturation + warmth */
    filter: saturate(0.55) brightness(0.88) contrast(1.05) sepia(0.08);
}

.hero-bg .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(to bottom,
            rgba(25, 22, 18, 0.65) 0%,
            rgba(25, 22, 18, 0.45) 40%,
            rgba(25, 22, 18, 0.35) 60%,
            rgba(245, 243, 240, 0.5) 85%,
            var(--bg-main) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--bg-main);
    padding: 0 24px;
    margin-top: -8vh;
}

.hero-eyebrow {
    font-family: var(--font-serif-en);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    opacity: 0.8;
    margin-bottom: 28px;
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
}

.hero-title {
    font-size: 2.4rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    line-height: 1.5;
    text-shadow: 0 2px 30px rgba(0, 0, 0, 0.4), 0 1px 8px rgba(0, 0, 0, 0.2);
}

.hero-date {
    font-family: var(--font-serif-en);
    font-size: 1.05rem;
    font-weight: 300;
    letter-spacing: 0.3em;
    margin-bottom: 28px;
    opacity: 0.9;
    text-shadow: 0 1px 15px rgba(0, 0, 0, 0.3);
}

.hero-date-sep {
    margin: 0 4px;
    opacity: 0.5;
}

.hero-subtitle {
    font-size: 0.95rem;
    font-weight: 300;
    letter-spacing: 0.12em;
    opacity: 0.85;
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.3);
}

/* Scroll hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.hero-scroll-hint span {
    font-family: var(--font-serif-en);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.5;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    opacity: 0.3;
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.6; transform: scaleY(1.2); }
}

/* ================================================
   2. Concept
   ================================================ */
.concept .container-text {
    text-align: center;
}

.concept-block p {
    margin-bottom: 24px;
}

.concept-block p:last-child {
    margin-bottom: 0;
}

.divider {
    height: 48px;
    width: 1px;
    background-color: var(--border);
    margin: 48px auto;
}

/* ================================================
   3. Schedule
   ================================================ */
.timeline {
    width: 100%;
    border-top: 1px solid var(--border);
}

.timeline-row {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 36px 0;
}

.timeline-row .time {
    width: 100px;
    font-family: var(--font-serif-en);
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--accent);
    flex-shrink: 0;
    padding-top: 2px;
}

.timeline-row .event {
    flex-grow: 1;
}

.event-label {
    font-family: var(--font-serif-en);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 6px;
    opacity: 0.7;
}

.event-title {
    font-size: 1.05rem;
    font-weight: 400;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
}

.event-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.9;
}

/* ================================================
   4. Quests
   ================================================ */
.quests-header {
    margin-bottom: 100px;
    text-align: center;
}

.quests-lead {
    font-size: 1rem;
    line-height: 2.4;
}

.quest-card {
    margin-bottom: 120px;
}

.quest-card:last-child {
    margin-bottom: 0;
}

.quest-image {
    width: 100%;
    margin-bottom: 48px;
    overflow: hidden;
    border-radius: 2px;
}

.quest-image img {
    width: 100%;
    /* Film-tone filter applied to all quest images */
    filter: saturate(0.5) brightness(0.92) contrast(1.05) sepia(0.06);
    transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1),
                filter 0.8s ease;
}

.quest-card:hover .quest-image img {
    transform: scale(1.02);
    filter: saturate(0.65) brightness(0.95) contrast(1.05) sepia(0.04);
}

.quest-content {
    max-width: var(--container-text);
    margin: 0 auto;
    text-align: center;
}

.quest-number {
    display: inline-block;
    font-family: var(--font-serif-en);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    padding: 4px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
}

.quest-title {
    font-size: 1.5rem;
    margin-bottom: 8px;
    letter-spacing: 0.15em;
}

.quest-subtitle {
    color: var(--text-muted);
    margin-bottom: 40px;
    font-style: italic;
    font-family: var(--font-serif-jp);
    font-size: 0.9rem;
}

.quest-body {
    margin-bottom: 48px;
}

.quest-body p {
    margin-bottom: 20px;
}

.quest-body p:last-child {
    margin-bottom: 0;
}

.quest-meta {
    background-color: var(--bg-alt-2);
    padding: 36px 40px;
    text-align: left;
    font-size: 0.85rem;
    border-radius: 2px;
}

.meta-row {
    display: flex;
    border-bottom: 1px solid var(--border-light);
    padding: 10px 0;
}

.meta-row:last-child {
    border-bottom: none;
}

.meta-row span:first-child {
    width: 110px;
    font-family: var(--font-serif-en);
    font-weight: 400;
    color: var(--accent);
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.quest-image-dual {
    display: flex;
    gap: 12px;
}

.quest-image-dual img {
    width: calc(50% - 6px);
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
}

/* ================================================
   5. Rewards
   ================================================ */
.rewards {
    background-color: var(--accent);
    color: var(--bg-alt-1);
}

.rewards .section-label,
.rewards .section-title,
.rewards .rewards-lead {
    color: var(--bg-alt-1);
    text-align: center;
}

.rewards .section-label {
    opacity: 0.6;
}

.rewards-lead {
    margin-bottom: 72px;
    font-size: 0.95rem;
}

.reward-list {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
}

.reward-item {
    background-color: rgba(255, 255, 255, 0.04);
    padding: 56px 40px;
    width: 100%;
    max-width: 440px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 2px;
    transition: background-color 0.4s ease;
}

.reward-item:hover {
    background-color: rgba(255, 255, 255, 0.07);
}

.reward-label {
    display: inline-block;
    font-family: var(--font-serif-en);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
    opacity: 0.5;
    text-transform: uppercase;
}

.reward-title {
    font-family: var(--font-serif-en);
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.reward-desc {
    opacity: 0.8;
    font-size: 0.9rem;
    line-height: 2;
}

/* ================================================
   6. Visual Break (Texture Image)
   ================================================ */
.visual-break {
    position: relative;
    height: 320px;
    overflow: hidden;
}

.visual-break img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    filter: saturate(0.4) brightness(0.85) contrast(1.1) sepia(0.1);
}

.visual-break-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(to bottom,
            var(--bg-main) 0%,
            transparent 20%,
            transparent 80%,
            var(--bg-main) 100%);
    pointer-events: none;
}

/* ================================================
   7. Closing
   ================================================ */
.closing {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.closing p {
    margin-bottom: 28px;
}

.closing p:last-child {
    margin-bottom: 0;
}

.closing-emphasis {
    margin-top: 48px !important;
    font-size: 1.15rem;
    letter-spacing: 0.15em;
    font-weight: 400;
}

/* ================================================
   8. Information
   ================================================ */
.info-table {
    border-top: 1px solid var(--border);
}

.info-row {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 22px 0;
}

.info-head {
    width: 120px;
    font-family: var(--font-serif-en);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--accent);
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.info-body {
    flex-grow: 1;
    font-size: 0.9rem;
}

.note {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ================================================
   9. Application
   ================================================ */
.application .container {
    text-align: center;
}

.app-text {
    margin-bottom: 40px;
    font-size: 0.9rem;
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent);
    color: white;
    padding: 18px 72px;
    font-family: var(--font-serif-jp);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    border-radius: 2px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    opacity: 1;
}

.app-note {
    margin-top: 16px;
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ================================================
   10. Footer
   ================================================ */
.footer {
    padding: 72px 0;
    text-align: center;
    background-color: var(--bg-alt-2);
    border-top: 1px solid var(--border);
}

.footer-logo {
    font-family: var(--font-serif-en);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    margin-bottom: 24px;
    color: var(--text-main);
}

.footer-address {
    font-style: normal;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.8;
}

.copyright {
    font-family: var(--font-serif-en);
    font-size: 0.7rem;
    color: var(--text-light);
    letter-spacing: 0.05em;
}

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 120px;
        --spacing-lg: 100px;
        --spacing-md: 60px;
    }

    body {
        font-size: 14px;
    }

    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 1.6rem;
        letter-spacing: 0.12em;
    }

    .hero-date {
        font-size: 0.9rem;
    }

    .hero-eyebrow {
        font-size: 0.65rem;
    }

    .section-title {
        font-size: 1.4rem;
        margin-bottom: 60px;
    }

    .dot-nav {
        right: 16px;
        gap: 12px;
    }

    .dot-nav-item span {
        width: 6px;
        height: 6px;
    }

    .timeline-row {
        flex-direction: column;
    }

    .timeline-row .time {
        margin-bottom: 8px;
    }

    .info-row {
        flex-direction: column;
    }

    .info-head {
        margin-bottom: 6px;
    }

    .quest-meta {
        padding: 24px;
    }

    .quest-image-dual {
        gap: 8px;
    }

    .quest-image-dual img {
        width: calc(50% - 4px);
    }

    .reward-item {
        padding: 40px 28px;
    }

    .visual-break {
        height: 200px;
    }

    .closing {
        padding: 100px 0;
    }

    .btn-primary {
        padding: 16px 48px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.35rem;
    }

    .reward-list {
        flex-direction: column;
        align-items: center;
    }

    .reward-item {
        max-width: 100%;
    }
}