* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 100% 100%, rgba(59, 130, 246, 0.04) 0%, transparent 50%);
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
    transition: background-color 0.25s ease, color 0.2s ease;
}

[data-theme="light"] body {
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(255, 107, 74, 0.04) 0%, transparent 60%),
        radial-gradient(circle at 100% 100%, rgba(16, 185, 129, 0.04) 0%, transparent 50%);
}

.app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--telemetry-w);
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    box-sizing: border-box;
    transition: grid-template-columns 0.32s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-layout.telemetry-collapsed {
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr) 0px;
}

.app-layout.sidebar-collapsed {
    grid-template-columns: 68px minmax(0, 1fr) var(--telemetry-w);
}

.app-layout.sidebar-collapsed.telemetry-collapsed {
    grid-template-columns: 68px minmax(0, 1fr) 0px;
}

/* Backdrop para móviles */
.sidebar-backdrop {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 1900;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.telemetry-backdrop {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.telemetry-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* En pantallas dobles y escritorio mantener el resto del sitio 100% brillante y nítido */
@media (min-width: 600px) {
    .telemetry-backdrop {
        display: none !important;
    }
}

/* ==========================================================================
   OPTIMIZACIÓN RESPONSIVE: MÓVILES PANTALLA SIMPLE (< 600px)
   ========================================================================== */
@media (max-width: 599px) {
    .app-layout, .app-layout.telemetry-collapsed, .app-layout.sidebar-collapsed {
        display: flex !important;
        flex-direction: column !important;
        grid-template-columns: none !important;
        width: 100vw !important;
        height: 100dvh !important;
    }
}

/* ==========================================================================
   OPTIMIZACIÓN PANTALLAS DOBLES / PLEGABLES / TABLETS (600px a 1000px)
   ========================================================================== */
@media (min-width: 600px) and (max-width: 1000px) {
    .app-layout {
        display: grid !important;
        grid-template-columns: var(--sidebar-w) minmax(0, 1fr) 0px !important;
        width: 100vw !important;
        height: 100dvh !important;
    }
    .app-layout.sidebar-collapsed {
        grid-template-columns: 68px minmax(0, 1fr) 0px !important;
    }
}

/* Scrollbar moderno & responsivo */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.22) transparent;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.22); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.35); }

/* Scrollbar en Modo Claro Retro-Tech */
[data-theme="light"] * {
    scrollbar-color: #94A3B8 rgba(22, 34, 56, 0.05);
}

[data-theme="light"] ::-webkit-scrollbar-track {
    background: rgba(22, 34, 56, 0.05) !important;
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: #94A3B8 !important;
}

[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: #64748B !important;
}