/* Color Palette */
:root {
    --color-sage: #7B8C56;
    --color-blue: #5B7B8C;
    --color-cream: #FAF6EF;
    --color-light-sage: #B8C4A0;
    --color-tan: #D4A08C;
    --color-brown: #C47B4A;
    --color-dark: #2C2416;

    /* Typography */
    --font-display: 'Nunito', sans-serif;
    --font-body: 'Lora', serif;
    --font-accent: 'Caveat', cursive;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    background-color: var(--color-cream);
    color: var(--color-dark);
    font-family: var(--font-body);
    background-image: repeating-conic-gradient(from 0deg at 40px 40px, #2C2416 0%, #2C2416 0.15%, transparent 0.15%);
    background-size: 80px 80px;
    background-position: 0 0;
}

body {
    position: relative;
}

/* Border-Animate Viewport Frame */
.border-animate {
    position: fixed;
    background-color: var(--color-sage);
    z-index: 1000;
    pointer-events: none;
}

.border-top {
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    animation: draw-top 0.75s 0s forwards;
}

.border-right {
    top: 0;
    right: 0;
    width: 2px;
    height: 0;
    animation: draw-right 0.75s 0.75s forwards;
}

.border-bottom {
    bottom: 0;
    right: 0;
    height: 2px;
    width: 0;
    animation: draw-bottom 0.75s 1.5s forwards;
}

.border-left {
    bottom: 0;
    left: 0;
    width: 2px;
    height: 0;
    animation: draw-left 0.75s 2.25s forwards;
}

@keyframes draw-top {
    to { width: 100%; }
}

@keyframes draw-right {
    to { height: 100%; }
}

@keyframes draw-bottom {
    to { width: 100%; }
}

@keyframes draw-left {
    to { height: 100%; }
}

.scroll-canvas {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding-top: 0;
}

/* ===== ZONE A: The Garden Gate ===== */
.zone-a {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    scroll-padding-top: 100vh;
}

.watercolor-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(123, 140, 86, 0.15) 0%, rgba(91, 123, 140, 0.1) 50%, transparent 100%);
    z-index: -1;
}

.gate-content {
    text-align: center;
    z-index: 10;
}

.domain-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--color-dark);
    margin-bottom: 1rem;
    animation: fadeInScale 1.2s ease-out;
}

.japanese-name {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 400;
    color: var(--color-brown);
    opacity: 0.9;
    letter-spacing: 0.1em;
    animation: fadeInScale 1.5s ease-out 0.2s both;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Dot Grid Background for Zone B */
.zone-b::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle, var(--color-light-sage) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

/* ===== ZONE B: The Logical Garden ===== */
.zone-b {
    position: relative;
    min-height: 300vh;
    padding: 10vh 5vw;
}

.garden-content {
    position: relative;
    height: 100%;
    z-index: 1;
}

.content-block {
    position: relative;
    margin-bottom: 15vh;
    padding: 3rem 2rem;
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 8px;
    transition: all 0.6s ease-out;
    opacity: 0.95;
    transform: rotate(calc(var(--rot) * 1deg));
}

.block-1 {
    --block-offset: 10;
    --rot: -1.5;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 50%;
}

.block-2 {
    --block-offset: 35;
    --rot: 1;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 50%;
}

.block-3 {
    --block-offset: 55;
    --rot: -0.8;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 50%;
}

.block-4 {
    --block-offset: 15;
    --rot: 1.2;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 50%;
}

.block-5 {
    --block-offset: 45;
    --rot: -1;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 50%;
}

.block-6 {
    --block-offset: 25;
    --rot: 0.5;
    margin-left: calc(var(--block-offset) * 1vw);
    width: 60%;
}

.content-block h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    color: var(--color-sage);
    margin-bottom: 1rem;
}

.content-block p {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.15vw, 1.15rem);
    line-height: 1.85;
    color: var(--color-dark);
}

.logic-operator {
    width: 120px;
    height: 120px;
    margin: 1.5rem 0;
    display: block;
    filter: url(#watercolor);
}

.truth-table {
    width: 240px;
    height: 100px;
    margin: 1.5rem 0;
    filter: url(#watercolor);
}

.watering-can {
    width: 100px;
    height: 120px;
    margin: 1.5rem 0;
    filter: url(#watercolor);
}

/* Annotation text with Caveat */
.annotation {
    font-family: var(--font-accent);
    font-size: clamp(1.1rem, 1.3vw, 1.4rem);
    font-weight: 400;
    color: var(--color-brown);
    margin: 1rem 0;
}

/* ===== ZONE C: The Crystalline Grid ===== */
.zone-c {
    position: relative;
    min-height: 150vh;
    padding: 10vh 5vw;
    background: linear-gradient(135deg, rgba(178, 196, 160, 0.1) 0%, rgba(212, 160, 140, 0.08) 100%);
    background-image:
        linear-gradient(0deg, transparent 24%, rgba(91, 123, 140, 0.4) 25%, rgba(91, 123, 140, 0.4) 26%, transparent 27%, transparent 74%, rgba(91, 123, 140, 0.4) 75%, rgba(91, 123, 140, 0.4) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(91, 123, 140, 0.4) 25%, rgba(91, 123, 140, 0.4) 26%, transparent 27%, transparent 74%, rgba(91, 123, 140, 0.4) 75%, rgba(91, 123, 140, 0.4) 76%, transparent 77%, transparent);
    background-size: 2rem 2rem;
}

.zone-c::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(0deg, transparent 24%, rgba(91, 123, 140, 0.4) 25%, rgba(91, 123, 140, 0.4) 26%, transparent 27%, transparent 74%, rgba(91, 123, 140, 0.4) 75%, rgba(91, 123, 140, 0.4) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(91, 123, 140, 0.4) 25%, rgba(91, 123, 140, 0.4) 26%, transparent 27%, transparent 74%, rgba(91, 123, 140, 0.4) 75%, rgba(91, 123, 140, 0.4) 76%, transparent 77%, transparent);
    background-size: 2rem 2rem;
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

.grid-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 4rem;
    letter-spacing: 0.02em;
    position: relative;
    z-index: 1;
}

.logic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.grid-cell {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-left: 4px solid var(--color-sage);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.grid-cell:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(91, 123, 140, 0.15);
    border-left-color: var(--color-tan);
    border-left-width: 6px;
}

.grid-cell h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-blue);
    margin-bottom: 0.5rem;
}

.grid-cell p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.85;
    color: var(--color-dark);
}

/* ===== ZONE D: The Library ===== */
.zone-d {
    position: relative;
    min-height: 100vh;
    padding: 10vh 5vw;
    background-color: rgba(123, 140, 86, 0.05);
}

.zone-d h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 4rem;
    letter-spacing: 0.02em;
}

.resource-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.resource-item {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 2.5rem;
    border-radius: 8px;
    border-top: 3px solid var(--color-brown);
    transition: all 0.3s ease;
}

.resource-item:hover {
    background-color: rgba(255, 255, 255, 1);
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(196, 123, 74, 0.15);
    border-top-color: var(--color-tan);
}

.resource-item h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-brown);
    margin-bottom: 0.8rem;
}

.resource-item p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.85;
    color: var(--color-dark);
}

/* Responsive Design */
@media (max-width: 768px) {
    .block-1, .block-2, .block-3, .block-4, .block-5, .block-6 {
        margin-left: 0 !important;
        width: 100% !important;
        transform: rotate(0deg) !important;
    }

    .logic-grid {
        grid-template-columns: 1fr;
    }

    .resource-list {
        grid-template-columns: 1fr;
    }

    .domain-name {
        font-size: 2rem;
    }

    .japanese-name {
        font-size: 1.5rem;
    }

    .zone-a {
        height: 70vh;
    }
}

/* Scroll-triggered animations */
@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.content-block {
    animation: slideInFromLeft 0.8s ease-out forwards;
    opacity: 0;
}

.content-block.visible {
    animation: slideInFromLeft 0.8s ease-out;
}

/* Crystallization transition */
.content-block.crystallized {
    transform: rotate(0deg) !important;
    transition: transform 0.3s ease-out;
}