/* Variables de color para cambiar el diseño rápido */
:root {
    --bg-color: #f8f9fa;
    --text-main: #212529;
    --text-muted: #6c757d;
    --accent: #bd1f36; /* Un rojo sutil, elegante y japonés */
    --accent-hover: #961629;
    --card-bg: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 30px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.badge {
    font-size: 0.8rem;
    background-color: #e9ecef;
    padding: 6px 12px;
    border-radius: 20px;
    color: var(--text-muted);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 0 40px 0;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 300;
}

/* Botón Principal (Google Forms) */
.btn-primary {
    display: inline-block;
    background-color: var(--text-main);
    color: #ffffff;
    text-decoration: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.btn-primary:hover {
    background-color: var(--accent);
    transform: translateY(-2px);
}

.separator {
    border: 0;
    height: 1px;
    background: #e9ecef;
    margin: 40px 0;
}

/* Tarjetas de Información */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding-bottom: 60px;
}

.card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
}

.card h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid #e9ecef;
}

/* Adaptación para celulares */
@media (max-width: 600px) {
    .hero h1 { font-size: 2rem; }
    .hero { padding: 40px 0 20px 0; }
}