:root {
    /* PALETA KYŌZEN */
    --primary-main: #0F5C8C;    /* Azul Institucional */
    --primary-hover: #0a4266;   /* Azul más oscuro para interacciones */
    --accent-color: #B56A4A;    /* Color teja/oxido secundario */
    
    /* NEUTROS */
    --text-dark: #1A202C;
    --text-gray: #4A5568;
    --bg-light: #F8FAFC;        /* Un gris muy sutil, casi blanco */
    --white: #FFFFFF;
    --border-color: #E2E8F0;
    
    /* SOMBRAS */
    --shadow-sm: 0 1px 3px rgba(15, 92, 140, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(15, 92, 140, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(15, 92, 140, 0.15);
}

/* 1. RESET Y BASE */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
    width: 100%;
}

/* 2. HEADER Y NAVBAR */
header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    height: 80px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 36px;
    font-weight: 800; /* Ojo: Sawarabi suele tener un solo grosor, pero el navegador lo intentará hacer negrita */
    color: var(--primary-main);
    text-decoration: none;
    flex-shrink: 0;
    letter-spacing: -0.5px;
    font-family: 'Sawarabi Mincho', serif;
}

.logo img {
    height: 35px;
    width: auto;
}

.logo span {
    color: var(--accent-color); /* El "zen" en color teja */
}

nav {
    width: 100%;
    display: flex;
}

nav ul {
    display: flex;
    align-items: center;
    gap: 25px;
    list-style: none;
    margin-left: auto;
}

nav ul li a {
    font-weight: 500;
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
}

nav ul li a:hover {
    color: var(--primary-main);
}

/* 3. BOTONES */
.btn-primary {
    background-color: var(--primary-main);
    color: var(--white) !important; /* Texto blanco para contraste con azul oscuro */
    padding: 10px 24px;
    border-radius: 6px; /* Bordes un poco más rectos para ser más corporativo */
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--primary-main);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-main) !important;
    border: 1px solid var(--primary-main);
    padding: 10px 24px; /* Igualamos padding al primario */
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-primary:hover { 
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px); 
}

.btn-secondary:hover { 
    background-color: var(--primary-main); 
    color: var(--white) !important; 
}

/* 4. HERO SECTION */
.hero-section {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    margin-bottom: 24px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--primary-main);
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* 5. TARJETAS (ESTILO CONSULTORÍA) */
.grid-cursos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 40px 0 80px;
}

.curso-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.curso-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color); /* Borde naranja al hacer hover */
}

/* 6. FEATURES (HOME) */
.features-section { padding: 80px 0; background-color: var(--white); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    padding: 20px;
    border-radius: 12px;
    text-align: left;
    transition: transform 0.2s;
}

/* Iconos con el color secundario */
.feature-card .icon {
    font-size: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: #FFF5F0; /* Un naranja muy muy claro de fondo */
    color: var(--accent-color);
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
    color: var(--primary-main);
}

/* 7. CTA SECTION */
.cta-section {
    background-color: var(--primary-main);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.cta-section h2 { 
    margin-bottom: 20px; 
    font-size: 2.2rem;
}

.cta-section p { 
    margin-bottom: 35px; 
    color: rgba(255,255,255,0.85); 
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-secondary {
    border-color: var(--white);
    color: var(--white) !important;
}

.cta-section .btn-secondary:hover {
    background: var(--white);
    color: var(--primary-main) !important;
}

/* 8. FOOTER */
footer {
    background-color: var(--text-dark);
    color: var(--bg-light);
    padding: 60px 0;
    text-align: center;
    font-size: 0.9rem;
    border-top: 4px solid var(--accent-color); /* Detalle de color arriba del footer */
}