/* ============================================
   heisei.day - Heisei Era Cottagecore Design
   Colors: #F0E4D4, #3D2A1A, #C76B3A, #5C3D2E, #1A0F0A, #D4BFA8, #9C4A1A, #8B6F5A, #2A1F1A
   Fonts: Anybody (display), Space Grotesk (body), Lora (accent)
   ============================================ */

:root {
    --cream: #F0E4D4;
    --dark-brown: #3D2A1A;
    --burnt-orange: #C76B3A;
    --medium-brown: #5C3D2E;
    --near-black: #1A0F0A;
    --warm-tan: #D4BFA8;
    --deep-orange: #9C4A1A;
    --muted-brown: #8B6F5A;
    --dark-earth: #2A1F1A;
    --gap: 6px;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background: var(--near-black);
}

body {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--cream);
    background: var(--near-black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* SVG Filters - Hidden */
.svg-filters {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* ============================================
   Leather Texture Overlay
   ============================================ */
.leather-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.06;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='t'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.85' numOctaves='6'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23t)' opacity='0.5'/%3E%3C/svg%3E");
    background-size: 300px 300px;
}

/* ============================================
   Hero Section
   ============================================ */
.section-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(175deg, var(--near-black) 0%, var(--dark-earth) 40%, var(--dark-brown) 100%);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
}

.hero-title {
    font-family: 'Anybody', sans-serif;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

.title-line {
    display: block;
    font-size: clamp(80px, 18vw, 200px);
    color: var(--cream);
    font-variation-settings: 'wdth' 100;
    transition: font-variation-settings 0.6s ease;
}

.title-sub {
    font-size: clamp(32px, 6vw, 72px);
    color: var(--burnt-orange);
    margin-top: 0.5rem;
    letter-spacing: 0.05em;
}

.hero-tagline {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: clamp(14px, 2vw, 20px);
    color: var(--warm-tan);
    margin-bottom: 3rem;
    opacity: 0.8;
}

.hero-date {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    align-items: center;
}

.era-kanji {
    font-family: 'Anybody', sans-serif;
    font-size: clamp(18px, 3vw, 28px);
    color: var(--muted-brown);
    letter-spacing: 0.3em;
}

.era-western {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    color: var(--muted-brown);
    letter-spacing: 0.5em;
    text-transform: uppercase;
}

/* Persimmon Decorative Elements */
.persimmon-cluster {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.persimmon {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: 30px;
    height: 28px;
    border-radius: 50%;
    background: radial-gradient(ellipse at 40% 40%, var(--burnt-orange), var(--deep-orange));
    opacity: 0;
    animation: persimmonFade 4s ease-in-out var(--delay) infinite alternate;
    box-shadow: 0 0 20px rgba(199, 107, 58, 0.3);
}

.persimmon::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 8px;
    background: var(--medium-brown);
    border-radius: 1px;
}

.persimmon::after {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%) rotate(-20deg);
    width: 10px;
    height: 5px;
    background: var(--medium-brown);
    border-radius: 50%;
    opacity: 0.7;
}

@keyframes persimmonFade {
    0% { opacity: 0; transform: translateY(5px); }
    50% { opacity: 0.6; }
    100% { opacity: 0.3; transform: translateY(-5px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 2;
}

.scroll-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--muted-brown);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--muted-brown);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--burnt-orange);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0% { top: -100%; }
    100% { top: 100%; }
}

/* ============================================
   Bento Grid Sections
   ============================================ */
.bento-section {
    position: relative;
    padding: 6rem 1.5rem;
    background: var(--near-black);
}

.section-header {
    position: relative;
    z-index: 2;
    text-align: center;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-family: 'Anybody', sans-serif;
    font-weight: 400;
    font-size: clamp(48px, 10vw, 120px);
    color: var(--cream);
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-variation-settings: 'wdth' 100;
    transition: font-variation-settings 0.6s ease;
}

.section-subtitle {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--muted-brown);
    margin-top: 1rem;
}

/* Bento Grid Layout */
.bento-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--gap);
    max-width: 1200px;
    margin: 0 auto;
}

/* Bento Grid 1 - Memory Fragments */
.bento-grid-1 .cell-1 { grid-column: 1 / 3; grid-row: 1 / 3; }
.bento-grid-1 .cell-2 { grid-column: 3 / 5; grid-row: 1 / 2; }
.bento-grid-1 .cell-3 { grid-column: 5 / 7; grid-row: 1 / 2; }
.bento-grid-1 .cell-4 { grid-column: 3 / 5; grid-row: 2 / 4; }
.bento-grid-1 .cell-5 { grid-column: 5 / 7; grid-row: 2 / 3; }
.bento-grid-1 .cell-6 { grid-column: 1 / 3; grid-row: 3 / 4; }

/* Bento Grid 2 - Seasons */
.bento-grid-2 .cell-s1 { grid-column: 1 / 4; grid-row: 1 / 2; }
.bento-grid-2 .cell-s2 { grid-column: 4 / 7; grid-row: 1 / 2; }
.bento-grid-2 .cell-s3 { grid-column: 1 / 3; grid-row: 2 / 3; }
.bento-grid-2 .cell-s4 { grid-column: 3 / 5; grid-row: 2 / 3; }
.bento-grid-2 .cell-s5 { grid-column: 5 / 7; grid-row: 2 / 3; }

/* Bento Grid 3 - Artifacts */
.bento-grid-3 .cell-a1 { grid-column: 1 / 3; grid-row: 1 / 2; }
.bento-grid-3 .cell-a2 { grid-column: 3 / 5; grid-row: 1 / 2; }
.bento-grid-3 .cell-a3 { grid-column: 5 / 7; grid-row: 1 / 2; }
.bento-grid-3 .cell-a4 { grid-column: 1 / 3; grid-row: 2 / 3; }
.bento-grid-3 .cell-a5 { grid-column: 3 / 7; grid-row: 2 / 3; }
.bento-grid-3 .cell-a6 { grid-column: 1 / 4; grid-row: 3 / 4; }

/* Bento Cell Styles */
.bento-cell {
    position: relative;
    min-height: 200px;
    overflow: hidden;
    border-radius: 2px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.bento-cell.revealed {
    opacity: 1;
    transform: translateY(0);
}

.cell-inner {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 200px;
    padding: 1.5rem;
    background: var(--dark-earth);
    border: 1px solid rgba(139, 111, 90, 0.15);
    border-radius: 2px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    transition: border-color 0.4s ease;
}

.cell-inner:hover {
    border-color: rgba(199, 107, 58, 0.3);
}

.cell-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.85' numOctaves='6'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
    pointer-events: none;
}

.cell-content {
    position: relative;
    z-index: 1;
}

.cell-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--burnt-orange);
    display: block;
    margin-bottom: 0.75rem;
}

.cell-title {
    font-family: 'Anybody', sans-serif;
    font-weight: 400;
    font-size: clamp(20px, 3vw, 28px);
    color: var(--cream);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.cell-description {
    font-family: 'Lora', serif;
    font-size: 14px;
    line-height: 1.7;
    color: var(--warm-tan);
    opacity: 0.85;
}

.cell-accent {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--burnt-orange), transparent);
}

/* Burning leaves pattern */
.burning-leaves-pattern {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(135deg, transparent 30%, rgba(199, 107, 58, 0.08) 60%, rgba(156, 74, 26, 0.05) 100%);
    pointer-events: none;
}

/* Persimmon Illustration */
.persimmon-illustration {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    width: 80px;
    height: 80px;
    opacity: 0.7;
}

.persimmon-svg {
    width: 100%;
    height: 100%;
}

/* Sunset Gradient */
.sunset-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 40%, rgba(199, 107, 58, 0.1) 70%, rgba(156, 74, 26, 0.15) 100%);
    pointer-events: none;
}

/* Quote Cells */
.quote-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100%;
}

.bento-quote {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.7;
    color: var(--warm-tan);
    padding: 1rem;
    position: relative;
}

.quote-mark {
    font-family: 'Anybody', sans-serif;
    font-size: 2em;
    color: var(--burnt-orange);
    opacity: 0.5;
    vertical-align: -0.15em;
    line-height: 0;
}

/* ============================================
   Season Cells
   ============================================ */
.season-kanji {
    font-family: 'Anybody', sans-serif;
    font-size: clamp(48px, 8vw, 80px);
    color: var(--burnt-orange);
    opacity: 0.15;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    line-height: 1;
    z-index: 0;
}

.season-spring .cell-content { z-index: 1; position: relative; }
.season-summer .cell-content { z-index: 1; position: relative; }
.season-autumn .cell-content { z-index: 1; position: relative; }
.season-winter .cell-content { z-index: 1; position: relative; }

.season-spring { background: linear-gradient(135deg, var(--dark-earth), rgba(92, 61, 46, 0.3)); }
.season-summer { background: linear-gradient(135deg, var(--dark-earth), rgba(156, 74, 26, 0.15)); }
.season-autumn { background: linear-gradient(135deg, var(--dark-earth), rgba(199, 107, 58, 0.15)); }
.season-winter { background: linear-gradient(135deg, var(--dark-earth), rgba(212, 191, 168, 0.08)); }

/* Falling Leaves */
.falling-leaf-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.leaf {
    position: absolute;
    width: 12px;
    height: 8px;
    background: var(--burnt-orange);
    border-radius: 0 50% 50% 50%;
    opacity: 0;
    animation: leafFall 6s ease-in-out infinite;
}

.leaf-1 { left: 20%; animation-delay: 0s; }
.leaf-2 { left: 50%; animation-delay: 2s; }
.leaf-3 { left: 75%; animation-delay: 4s; }

@keyframes leafFall {
    0% { top: -10%; opacity: 0; transform: rotate(0deg) translateX(0); }
    20% { opacity: 0.5; }
    100% { top: 110%; opacity: 0; transform: rotate(360deg) translateX(30px); }
}

/* Washi Texture Showcase */
.texture-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100%;
    position: relative;
}

.washi-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='w'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.04' numOctaves='5' seed='5'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23w)' opacity='0.12'/%3E%3C/svg%3E");
    opacity: 0.3;
    pointer-events: none;
}

.texture-label {
    font-family: 'Anybody', sans-serif;
    font-size: 48px;
    color: var(--cream);
    opacity: 0.3;
    position: relative;
    z-index: 1;
}

.texture-sublabel {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--muted-brown);
    position: relative;
    z-index: 1;
    margin-top: 0.5rem;
}

/* ============================================
   Interstitial Sections
   ============================================ */
.interstitial-section {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-brown);
    overflow: hidden;
}

.interstitial-dark {
    background: var(--near-black);
}

.interstitial-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 4rem 2rem;
    max-width: 900px;
}

.interstitial-text {
    font-family: 'Anybody', sans-serif;
    font-weight: 400;
    font-size: clamp(28px, 5vw, 56px);
    color: var(--cream);
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    font-variation-settings: 'wdth' 100;
    transition: font-variation-settings 0.6s ease;
}

.small-text {
    font-family: 'Lora', serif;
    font-size: clamp(16px, 2.5vw, 22px);
    color: var(--warm-tan);
    opacity: 0.7;
    font-style: italic;
    margin-top: 2rem;
}

/* Era Timeline */
.era-timeline {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 4rem;
    width: 100%;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.year-start, .year-end {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    letter-spacing: 0.2em;
    color: var(--muted-brown);
    flex-shrink: 0;
}

.timeline-line {
    flex: 1;
    height: 1px;
    background: rgba(139, 111, 90, 0.3);
    position: relative;
    overflow: hidden;
}

.timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--burnt-orange);
    transition: width 2s ease;
}

/* Kanji Large Display */
.kanji-large {
    font-family: 'Anybody', sans-serif;
    font-size: clamp(100px, 25vw, 280px);
    font-weight: 400;
    color: var(--cream);
    line-height: 1;
    letter-spacing: -0.02em;
    font-variation-settings: 'wdth' 100;
    transition: font-variation-settings 0.6s ease;
    margin-bottom: 2rem;
}

.kanji-meaning {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.meaning-word {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(14px, 2vw, 18px);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--burnt-orange);
}

.meaning-divider {
    color: var(--muted-brown);
    font-size: 24px;
}

.interstitial-description {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: clamp(14px, 1.8vw, 18px);
    line-height: 1.8;
    color: var(--warm-tan);
    opacity: 0.7;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Artifacts Section
   ============================================ */
.artifact-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.artifact-svg {
    width: 100%;
    height: 100%;
}

/* Train Schedule */
.train-schedule {
    font-family: 'Space Grotesk', sans-serif;
    width: 100%;
}

.schedule-header {
    font-family: 'Anybody', sans-serif;
    font-size: 20px;
    color: var(--cream);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(139, 111, 90, 0.2);
}

.schedule-row {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(139, 111, 90, 0.08);
    gap: 1rem;
}

.schedule-time {
    font-size: 14px;
    color: var(--warm-tan);
    font-variant-numeric: tabular-nums;
    min-width: 50px;
}

.schedule-dest {
    font-size: 16px;
    color: var(--cream);
    flex: 1;
}

.schedule-status {
    font-size: 12px;
    letter-spacing: 0.1em;
}

.schedule-status.cancelled {
    color: var(--deep-orange);
    opacity: 0.7;
}

/* ============================================
   Footer Section
   ============================================ */
.footer-section {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(175deg, var(--near-black) 0%, var(--dark-earth) 100%);
    overflow: hidden;
}

.footer-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 4rem 2rem;
}

.footer-kanji {
    font-family: 'Anybody', sans-serif;
    font-size: clamp(80px, 20vw, 200px);
    font-weight: 400;
    color: var(--cream);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 2rem;
    font-variation-settings: 'wdth' 100;
    transition: font-variation-settings 0.6s ease;
}

.footer-text {
    font-family: 'Lora', serif;
    font-style: italic;
    font-size: clamp(16px, 2.5vw, 22px);
    color: var(--warm-tan);
    margin-bottom: 2rem;
    opacity: 0.8;
}

.footer-divider {
    width: 60px;
    height: 1px;
    background: var(--muted-brown);
    margin: 2rem auto;
    opacity: 0.4;
}

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

.footer-domain {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--muted-brown);
}

.footer-era {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 12px;
    letter-spacing: 0.2em;
    color: var(--muted-brown);
    opacity: 0.6;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-grid-1 .cell-1,
    .bento-grid-1 .cell-2,
    .bento-grid-1 .cell-3,
    .bento-grid-1 .cell-4,
    .bento-grid-1 .cell-5,
    .bento-grid-1 .cell-6 {
        grid-column: auto;
        grid-row: auto;
    }

    .bento-grid-2 .cell-s1,
    .bento-grid-2 .cell-s2,
    .bento-grid-2 .cell-s3,
    .bento-grid-2 .cell-s4,
    .bento-grid-2 .cell-s5 {
        grid-column: auto;
        grid-row: auto;
    }

    .bento-grid-3 .cell-a1,
    .bento-grid-3 .cell-a2,
    .bento-grid-3 .cell-a3,
    .bento-grid-3 .cell-a4,
    .bento-grid-3 .cell-a5,
    .bento-grid-3 .cell-a6 {
        grid-column: auto;
        grid-row: auto;
    }

    .bento-section {
        padding: 4rem 1rem;
    }
}

@media (max-width: 600px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .era-timeline {
        max-width: 280px;
    }

    .kanji-meaning {
        gap: 1rem;
    }
}

/* ============================================
   Scroll-based width animation class
   ============================================ */
[data-scroll-width].in-view {
    font-variation-settings: 'wdth' 125;
}

[data-scroll-width].out-view {
    font-variation-settings: 'wdth' 75;
}