/* =========================================
   LAYOUT GENERAL
========================================= */

body {
    font-family: var(--font-family-base);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* CONTENEDOR APP */

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 480px;
    margin: 0 auto;
}

/* HEADER */

.app-header {
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    flex-shrink: 0;
}

/* INTRO */

.intro {
    padding: var(--space-md);
    margin: var(--space-md);
}

/* MENSAJES */

.messages {
    flex: 1;
    padding: 0 var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    overflow-y: auto;
}

/* COMPOSER */

.composer {
    padding: var(--space-md);
    flex-shrink: 0;
}

/* FOOTER */

.app-footer {
    padding: var(--space-sm);
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ===== SCREEN (PANTALLA LOCAL) ===== */

.screen {
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-lg);
}

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

.screen-messages {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
    overflow: hidden;
}