@import url('https://fonts.googleapis.com/css2?family=Albert+Sans:wght@400;600;700&family=Big+Shoulders+Display:wght@700;800;900&family=JetBrains+Mono:wght@400;700&family=Noto+Sans+JP:wght@400;700&display=swap');

:root {
    /* Sakura Chroma Palette */
    --paper: #F1E6CB;
    --ink: #3A2516;
    --red: #E5392A;
    --pink: #E54489;
    --orange: #F09131;
    --yellow: #F0BC2A;
    --green: #3D9F47;
    --blue: #3F8BC4;
    
    /* Typography */
    --font-heading: 'Big Shoulders Display', sans-serif;
    --font-body: 'Albert Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-jp: 'Noto Sans JP', sans-serif;

    /* Structural */
    --border-thick: 4px solid var(--ink);
    --border-thin: 2px solid var(--ink);
    --shadow-solid: 8px 8px 0 var(--ink);
    --shadow-solid-sm: 4px 4px 0 var(--ink);
    
    --space-desktop: 100px;
    --space-tablet: 80px;
    --space-mobile: 60px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--paper);
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    background-image: radial-gradient(rgba(58, 37, 22, 0.15) 1.5px, transparent 1.5px);
    background-size: 24px 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    color: var(--ink);
    line-height: 1.1;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(4rem, 8vw, 7rem);
    color: var(--red);
    text-shadow: 4px 4px 0 var(--ink);
    letter-spacing: 2px;
}

h2 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: 1px;
}

h3 {
    font-size: 2rem;
}

.text-gradient {
    color: var(--blue);
    text-shadow: 4px 4px 0 var(--ink);
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
    background: none;
    filter: none;
}

.text-gradient-gold {
    color: var(--orange);
    text-shadow: 3px 3px 0 var(--ink);
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
    background: none;
    filter: none;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
}

a {
    color: var(--red);
    text-decoration: none;
    font-weight: 700;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--pink);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

section {
    padding: var(--space-desktop) 0;
}

/* Components */
.rainbow-strip {
    width: 100%;
    height: 16px;
    background: linear-gradient(90deg, 
        var(--red) 0 16.66%, 
        var(--pink) 16.66% 33.33%, 
        var(--orange) 33.33% 50%, 
        var(--yellow) 50% 66.66%, 
        var(--green) 66.66% 83.33%, 
        var(--blue) 83.33% 100%);
    border-bottom: var(--border-thick);
    display: block;
}

.jp-badge {
    font-family: var(--font-jp);
    background: var(--ink);
    color: #fff;
    padding: 2px 8px;
    font-size: 0.8rem;
    letter-spacing: 2px;
    display: inline-block;
    vertical-align: middle;
    margin-right: 0.5rem;
    font-weight: 700;
}

.content-wrapper, .feature-card, .game-container, .stats-container {
    background: #fff;
    border: var(--border-thick);
    box-shadow: var(--shadow-solid);
    border-radius: 0;
}

/* Header */
header {
    background: var(--paper);
    border-bottom: var(--border-thick);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    box-shadow: 0 4px 0 rgba(58, 37, 22, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo:hover {
    color: var(--red);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--ink);
    text-transform: uppercase;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a.active, .nav-links a:hover {
    color: var(--red);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--red);
    transform: scaleX(0);
    transition: transform 0.2s ease;
    transform-origin: left;
}

.nav-links a:hover::after, .nav-links a.active::after {
    transform: scaleX(1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.25rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    border: var(--border-thin);
    box-shadow: var(--shadow-solid-sm);
    transition: all 0.1s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--red);
    color: #fff;
}

.btn-primary:hover {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--ink);
    color: #fff;
}

.btn-secondary {
    background: var(--yellow);
    color: var(--ink);
}

.btn-secondary:hover {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--ink);
    color: var(--ink);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 40px;
    position: relative;
    border-bottom: var(--border-thick);
    background: var(--paper);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-disclaimer {
    margin-top: 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink);
    border-top: var(--border-thin);
    border-bottom: var(--border-thin);
    padding: 0.5rem;
    display: inline-block;
    background: #fff;
    font-weight: 700;
}

.hero-visual {
    position: relative;
    border: var(--border-thick);
    box-shadow: var(--shadow-solid);
    background: #fff;
    padding: 1rem;
}

.hero-visual img {
    width: 100%;
    display: block;
    border: var(--border-thin);
}

.hero-visual::before {
    content: "TDK-90";
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--ink);
    color: #fff;
    font-family: var(--font-mono);
    padding: 2px 10px;
    font-weight: 700;
    font-size: 0.9rem;
}

.tech-decal {
    position: absolute;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.85rem;
    background: var(--yellow);
    color: var(--ink);
    border: var(--border-thin);
    padding: 2px 8px;
    z-index: 2;
    box-shadow: 2px 2px 0 var(--ink);
}

.decal-1 { bottom: -15px; left: 20px; background: var(--pink); color: #fff; }
.decal-2 { bottom: 20px; right: -15px; transform: rotate(-90deg); transform-origin: right bottom; }

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    padding: 2rem;
    position: relative;
    transition: transform 0.1s ease;
}

.feature-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 12px 12px 0 var(--ink);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    border: var(--border-thin);
    padding: 10px;
    background: var(--paper);
    box-shadow: 3px 3px 0 var(--ink);
}

.feature-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    color: var(--ink);
}

.feature-card p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--ink);
}

/* Stats Section */
.stats-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 3rem 2rem;
    position: relative;
}

.stats-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: repeating-linear-gradient(
        45deg,
        var(--red) 0 10px,
        var(--pink) 10px 20px,
        var(--orange) 20px 30px,
        var(--yellow) 30px 40px,
        var(--green) 40px 50px,
        var(--blue) 50px 60px
    );
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 900;
    color: var(--blue);
    text-shadow: 3px 3px 0 var(--ink);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--ink);
    background: var(--yellow);
    padding: 2px 8px;
    border: 2px solid var(--ink);
    display: inline-block;
}

/* Content Pages */
.page-header {
    padding: 80px 0 40px;
    text-align: center;
    background: var(--paper);
    border-bottom: var(--border-thick);
    margin-bottom: 40px;
    position: relative;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 8px;
    background: repeating-linear-gradient(
        45deg,
        var(--red) 0 10px,
        var(--pink) 10px 20px,
        var(--orange) 20px 30px,
        var(--yellow) 30px 40px,
        var(--green) 40px 50px,
        var(--blue) 50px 60px
    );
    border-top: var(--border-thick);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem;
}

.content-wrapper h2 {
    margin-top: 3rem;
    color: var(--ink);
    border-bottom: var(--border-thick);
    padding-bottom: 0.5rem;
}

.content-wrapper h3 {
    margin-top: 2.5rem;
    color: var(--red);
}

.content-wrapper p, .content-wrapper ul {
    color: var(--ink);
    margin-bottom: 1.5rem;
}

.content-wrapper ul {
    padding-left: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.content-wrapper li {
    margin-bottom: 0.8rem;
    position: relative;
    list-style: none;
}

.content-wrapper li::before {
    content: '☑';
    position: absolute;
    left: -1.8rem;
    color: var(--blue);
    font-size: 1.2rem;
    line-height: 1;
}

/* Game Section */
.game-container {
    padding: 2rem;
    margin: 0 auto;
    position: relative;
}

.game-container:hover {
    box-shadow: 12px 12px 0 var(--ink);
}

.game-header {
    text-align: center;
    margin-bottom: 2rem;
    border-bottom: var(--border-thick);
    padding-bottom: 1rem;
}

.iframe-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: var(--border-thick);
    overflow: hidden;
    position: relative;
    background: var(--ink);
}

.iframe-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Forms */
input, textarea {
    font-family: var(--font-mono);
    font-size: 1rem;
    width: 100%;
    padding: 1rem;
    background: #fff;
    border: var(--border-thick);
    color: var(--ink);
    transition: all 0.2s;
    border-radius: 0;
}

input:focus, textarea:focus {
    outline: none;
    background: var(--paper);
    box-shadow: 4px 4px 0 var(--red);
}

label {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
    display: block;
    text-transform: uppercase;
}

/* Footer */
footer {
    background: #fff;
    border-top: var(--border-thick);
    padding: 0;
    margin-top: 4rem;
    position: relative;
}

.footer-ribbon {
    height: 16px;
    background: linear-gradient(90deg, var(--red) 0 16.6%, var(--pink) 16.6% 33.3%, var(--orange) 33.3% 50%, var(--yellow) 50% 66.6%, var(--green) 66.6% 83.3%, var(--blue) 83.3% 100%);
    border-bottom: var(--border-thick);
}

.footer-inner {
    padding: 4rem 0 2rem;
    background-image: radial-gradient(rgba(58, 37, 22, 0.1) 1px, transparent 1px);
    background-size: 10px 10px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    color: var(--ink);
    margin-bottom: 1.2rem;
    border-bottom: 2px solid var(--ink);
    display: inline-block;
    padding-bottom: 0.2rem;
}

.footer-links {
    list-style: none;
    font-family: var(--font-mono);
    padding-left: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links li::before {
    display: none;
}

.footer-links a {
    color: var(--ink);
    font-size: 0.9rem;
    text-decoration: none;
    font-weight: 700;
}

.footer-links a:hover {
    color: var(--blue);
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

.footer-bottom {
    border-top: var(--border-thick);
    padding: 1.5rem 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--ink);
    color: var(--paper);
}

.disclaimer-box {
    padding: 1.5rem;
    background: var(--paper);
    border: var(--border-thin);
    margin-top: 2rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 4px 4px 0 var(--ink);
}

/* Media Queries */
@media (max-width: 1024px) {
    h1 { font-size: 4rem; }
    .hero-grid { grid-template-columns: 1fr; text-align: left; }
    .hero-buttons { justify-content: flex-start; display: flex; gap: 1rem; flex-wrap: wrap; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    header { padding: 1rem; }
    .nav-links { display: none; }
    .hero { padding-top: 40px; }
    h1 { font-size: 3.5rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .content-wrapper { padding: 1.5rem; }
    .features-grid { grid-template-columns: 1fr; }
    .stats-container { flex-direction: column; gap: 2rem; }
}