/* --- RESET Y BASES --- */
* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: 'Noto Serif JP', serif;
    background-color: #fcfaf5;
    color: #2c2c2c;
    line-height: 1.8;
}

/* Texto decorativo vertical lateral */
.vertical-text {
    position: fixed;
    right: 20px;
    top: 100px;
    writing-mode: vertical-rl;
    font-size: 2rem;
    color: rgba(188, 0, 45, 0.2);
    font-weight: 700;
    pointer-events: none;
}

/* --- CABECERA --- */
header {
    text-align: center;
    padding: 100px 20px;
    position: relative;
}

.circle-sun {
    width: 200px;
    height: 200px;
    background-color: #bc002d;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.07;
    z-index: -1;
}

h1 {
    font-size: 5rem;
    margin: 0;
    color: #1a1a1a;
    letter-spacing: 15px;
}

/* --- NAVEGACIÓN --- */
nav {
    background-color: #1a1a1b;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid #bc002d;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    margin: 0 25px;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 2px;
}

/* --- CUERPO --- */
main {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 30px;
}

h2 {
    font-size: 2.2rem;
    border-left: 5px solid #bc002d;
    padding-left: 20px;
    margin-bottom: 30px;
}

.content-box { margin-bottom: 80px; }

/* Tabla de info técnica */
.info-table {
    display: flex;
    justify-content: space-around;
    background: #fff;
    padding: 20px;
    border: 1px solid #ddd;
    margin-top: 20px;
    font-size: 0.9rem;
}

/* Grid de cartas */
.grid-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 80px;
}

.full-width { grid-column: 1 / span 2; }

.card {
    background: #fff;
    padding: 40px;
    border-top: 4px solid #1a1a1b;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.card h3 { color: #bc002d; margin-top: 0; }

/* Estilo Zen para conceptos */
.zen-box {
    background-color: #1a1a1b;
    color: #fff;
    padding: 60px;
    border-radius: 2px;
    margin-bottom: 80px;
}

.zen-box h2 { border-color: #fff; color: #fff; }

.concept-list .concept {
    margin-bottom: 25px;
    border-bottom: 1px solid #444;
    padding-bottom: 15px;
}

.concept strong { color: #bc002d; display: block; font-size: 1.2rem; }

/* --- FOOTER --- */
footer {
    background: #f4f4f4;
    text-align: center;
    padding: 60px;
    border-top: 1px solid #ddd;
}

@media (max-width: 768px) {
    .grid-section { grid-template-columns: 1fr; }
    .full-width { grid-column: 1; }
    h1 { font-size: 3rem; }
}