/* --- Base Styles & Variables --- */
:root {
    --bg-0: #070a12;
    --bg-1: #0b1020;
    --bg-2: #111a33;
    --accent: #22d3ee;
    --accent2: #7c3aed;
    --text: #e8eaf0;
    --muted: rgba(232, 234, 240, .72);
    --glass: rgba(255, 255, 255, .06);
    --glass2: rgba(255, 255, 255, .10);
    --stroke: rgba(255, 255, 255, .14);
    
    /* Tailwind Colors Mapping */
    --navy-dark: #0b1020;
    --navy-light: #111a33;
    --gold: #22d3ee;
    --silver: #e8eaf0;
}

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

body {
    font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background:
        radial-gradient(1200px 600px at 10% 10%, rgba(124, 58, 237, .22), transparent 55%),
        radial-gradient(900px 520px at 92% 18%, rgba(34, 211, 238, .18), transparent 55%),
        radial-gradient(900px 700px at 45% 110%, rgba(34, 211, 238, .10), transparent 60%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 35%, #0a0f1d 100%);
    color: #0b0f1d;
    line-height: 1.5;
}

/* --- Layout Utils --- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.grid { display: grid; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-16 { gap: 4rem; }
.gap-20 { gap: 5rem; }

.hidden { display: none; }
@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:w-1\/2 { width: 50%; }
    .md\:w-1\/4 { width: 25%; }
    .md\:w-3\/4 { width: 75%; }
    .md\:text-6xl { font-size: 3.75rem; }
    .md\:text-4xl { font-size: 2.25rem; }
}

/* --- Spacing --- */
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.p-4 { padding: 1rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.p-16 { padding: 4rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-20 { margin-bottom: 5rem; }
.mt-8 { margin-top: 2rem; }

/* --- Typography --- */
.text-white { color: #fff; }
.text-gold { color: var(--gold); }
.text-navy-dark { color: var(--navy-dark); }
.text-gray-200 { color: #e5e7eb; }
.text-gray-600 { color: #4b5563; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }
.font-medium { font-weight: 500; }
.uppercase { text-transform: uppercase; }
.tracking-widest { letter-spacing: 0.1em; }
.tracking-tighter { letter-spacing: -0.05em; }
.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }
.text-center { text-align: center; }

/* --- Components --- */
section { padding: 110px 0; }
.bg-navy { background-color: var(--bg-1); }
.bg-navy-dark { background-color: var(--navy-dark); }
.bg-navy-light { background-color: var(--navy-light); }
.bg-white { background-color: #fff; }
.bg-gray-50 { background-color: #f9fafb; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.border { border: 1px solid; }
.border-t-4 { border-top-width: 4px; }
.border-gold { border-color: var(--gold); }
.sticky { position: sticky; }
.top-0 { top: 0; }
.z-50 { z-index: 50; }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }

/* --- Original Custom Styles --- */
.hero-bg {
    background:
        radial-gradient(900px 420px at 10% 15%, rgba(34, 211, 238, .18), transparent 58%),
        radial-gradient(800px 420px at 85% 25%, rgba(124, 58, 237, .22), transparent 60%),
        linear-gradient(135deg, #0b1020 0%, #121b36 45%, #0b1020 100%);
    position: relative;
}
.hero-bg::before {
    content: "";
    position: absolute; inset: -2px;
    background: linear-gradient(90deg, rgba(34, 211, 238, .14), rgba(124, 58, 237, .14), rgba(34, 211, 238, .14));
    filter: blur(18px);
    opacity: .9;
    animation: gradientShift 8s ease-in-out infinite;
    pointer-events: none;
}

.btn-gold {
    background: linear-gradient(90deg, rgba(34, 211, 238, 1) 0%, rgba(124, 58, 237, 1) 50%, rgba(34, 211, 238, 1) 100%);
    background-size: 200% 100%;
    color: #06101a;
    box-shadow: 0 14px 40px rgba(34, 211, 238, .18), 0 10px 30px rgba(124, 58, 237, .16);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
}
.btn-gold::after {
    content: "";
    position: absolute; top: -40%; left: -60%; width: 60%; height: 180%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, .30) 45%, transparent 100%);
    transform: rotate(18deg);
    animation: shine 2.8s ease-in-out infinite;
    pointer-events: none;
}

.nav-glass {
    background: linear-gradient(180deg, rgba(11, 16, 32, .82) 0%, rgba(11, 16, 32, .62) 100%);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(34, 211, 238, 0.3);
}

.nav-link { position: relative; text-decoration: none; color: white; }
.nav-link::after {
    content: ""; position: absolute; left: 0; bottom: -8px; height: 2px; width: 0%;
    background: linear-gradient(90deg, rgba(34, 211, 238, 1), rgba(124, 58, 237, 1));
    transition: width .25s ease; border-radius: 999px;
}
.nav-link:hover::after { width: 100%; }

.card-glass {
    background: linear-gradient(180deg, rgba(255, 255, 255, .70) 0%, rgba(255, 255, 255, .56) 100%);
    border: 1px solid rgba(0, 0, 0, .06);
    box-shadow: 0 18px 60px rgba(0, 0, 0, .10);
}
.card-glass-dark {
    background: linear-gradient(180deg, rgba(255, 255, 255, .07) 0%, rgba(255, 255, 255, .04) 100%);
    border: 1px solid var(--stroke);
    box-shadow: 0 22px 70px rgba(0, 0, 0, .38);
}

.soft-panel {
    background: radial-gradient(900px 520px at 10% 20%, rgba(34, 211, 238, .06), transparent 60%),
                radial-gradient(700px 520px at 90% 10%, rgba(124, 58, 237, .06), transparent 58%), #ffffff;
}
.dark-panel {
    background: radial-gradient(800px 520px at 12% 20%, rgba(34, 211, 238, .10), transparent 58%),
                radial-gradient(700px 520px at 88% 22%, rgba(124, 58, 237, .12), transparent 60%),
                linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
}

/* --- Animations --- */
.anim-tagline { animation: floatY 3.8s ease-in-out infinite; letter-spacing: .35em; text-shadow: 0 10px 30px rgba(34, 211, 238, .18); }
.anim-hero-title { animation: popIn .75s cubic-bezier(.2, .9, .2, 1) both; }
.anim-subcopy { animation: fadeSlide .9s ease .08s both; }
.anim-card { transition: transform .25s ease, box-shadow .25s ease; }
.anim-card:hover { transform: translateY(-6px); box-shadow: 0 22px 80px rgba(0, 0, 0, .14); }

@keyframes gradientShift { 0% { transform: translateX(-2%); opacity: .75; } 50% { transform: translateX(2%); opacity: 1; } 100% { transform: translateX(-2%); opacity: .75; } }
@keyframes shine { 0% { transform: translateX(0) rotate(18deg); opacity: 0; } 25% { opacity: .9; } 50% { transform: translateX(220%) rotate(18deg); opacity: 0; } 100% { transform: translateX(220%) rotate(18deg); opacity: 0; } }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes popIn { 0% { opacity: 0; transform: translateY(14px) scale(.98); filter: blur(2px); } 100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); } }
@keyframes fadeSlide { 0% { opacity: 0; transform: translateX(-10px); } 100% { opacity: 1; transform: translateX(0); } }