:root {
    --bg-main: #F4F1EA;       /* Fondo arena neutro */
    --card-bg: #FFFFFF;       /* Blanco puro para tarjetas */
    --text-primary: #2C2C2E;  /* Grafito elegante */
    --text-muted: #6E6E73;    /* Gris secundario */
    --accent: #4A4E69;        /* Tono neutro/vino sutil para acentos */
    --border-color: #E2DDD5;  /* Bordes suaves */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-title: 0 2px 10px rgba(0, 0, 0, 0.08);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Títulos Modernos con Sombras */
h1, h2, h3 {
    color: var(--text-primary);
    text-shadow: var(--shadow-title);
    letter-spacing: -0.5px;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

/* Tarjetas */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 20px;
}

/* Formularios y Botones */
input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    margin: 8px 0 16px 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #FAFAFA;
    font-size: 1rem;
    color: var(--text-primary);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    background-color: #FFFFFF;
}

button, .btn {
    background-color: var(--text-primary);
    color: #FFFFFF;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s ease;
}

button:hover, .btn:hover {
    background-color: var(--accent);
}