:root {
    /* Paleta */
    --bg-paper: #F2F0E9;
    --ink: #1A1A1A;
    --color-icaro: #D64933;
    --color-silfio: #C2A878;
    
    /* Layout */
    --header-h: 60px;
    --footer-h: 100px;
    --grid-border: 4px;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}

body, html {
    height: 100%;
    height: 100dvh;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: var(--bg-paper);
    color: var(--ink);
    font-family: 'Space Grotesk', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Foco Acessível */
:focus-visible {
    outline: 3px solid var(--color-icaro);
    outline-offset: -3px;
    z-index: 50;
}

/* Tipografia */
.font-mega {
    font-family: 'Anton', sans-serif;
    line-height: 0.85;
}

/* GRID SYSTEM */
.bauhaus-grid {
    display: grid;
    grid-template-columns: 60px 1fr 1fr 350px; 
    grid-template-rows: var(--header-h) 1fr 100px; 
    height: 100dvh;
    width: 100vw;
    border: var(--grid-border) solid var(--ink);
}

.cell {
    border-right: 2px solid var(--ink);
    border-bottom: 2px solid var(--ink);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

#sidebar-identity {
    grid-row: span 3;
    background-color: var(--ink);
    color: var(--bg-paper);
}

.cell:last-child { border-right: none; }
.border-none-right { border-right: none !important; }
.border-none-bottom { border-bottom: none !important; }

.vertical-text-wrapper {
    writing-mode: vertical-lr;
    transform: rotate(180deg);
    white-space: nowrap;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bg-artwork {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    z-index: 0;
    filter: grayscale(10%) contrast(105%);
}
.bg-artwork.active {
    opacity: 1;
}

.bg-overlay {
    position: absolute;
    inset: 0;
    background: rgba(242, 240, 233, 0.1);
    z-index: 1;
    pointer-events: none;
}

.shape-sun {
    width: 40vh;
    height: 40vh;
    background-color: var(--color-icaro);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    mix-blend-mode: multiply;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
    pointer-events: none;
}

/* Logótipo */
.site-logo {
    width: 32px;
    height: auto;
    mix-blend-mode: multiply;
    opacity: 1;
}

/* Estados do Modo */
body.mode-silfio .shape-sun { transform: translate(-50%, -50%) scale(0); opacity: 0; }
body.mode-silfio .btn-nav[aria-selected="true"] { background-color: var(--color-silfio); color: white; }
body.mode-icaro .btn-nav[aria-selected="true"] { background-color: var(--color-icaro); color: white; }

/* Conteúdo Dinâmico (Animações) */
.dynamic-content {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    display: none;
}

.dynamic-content.active {
    opacity: 1;
    transform: translateY(0);
    display: flex; 
    position: relative;
    pointer-events: auto;
}

#info-panel .dynamic-content.active {
    height: 100%;
}

.btn-nav {
    cursor: pointer;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0 10px;
    border: none;
    border-right: 2px solid var(--ink);
    background: transparent;
    transition: background-color 0.2s, color 0.2s;
    font-size: 0.75rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.marquee-container {
    width: 100%;
    overflow: hidden;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 100%;
    display: flex;
    align-items: center;
}

.marquee-content {
    display: inline-block;
    padding-left: 100%;
    white-space: nowrap;
    animation: marquee 28s linear infinite;
    line-height: var(--header-h);
}

@keyframes marquee {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

.noise {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- RESPONSIVIDADE & MOBILE --- */
@media (max-width: 768px) {
    .bauhaus-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 45px 35px 25vh 1fr 100px;
    }

    #sidebar-identity { grid-row: 1 !important; border-bottom: 2px solid var(--ink); }
    #sidebar-identity .vertical-text-wrapper { writing-mode: horizontal-tb; transform: none; }
    #header-marquee { grid-row: 2; border-bottom: 2px solid var(--ink); }
    #main-visual { grid-row: 3; border-bottom: 2px solid var(--ink); }
    #info-panel { grid-row: 4; overflow-y: auto; border-bottom: 2px solid var(--ink); }

    #controls { 
        grid-row: 5;
        display: grid !important;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 60px 40px;
    }

    .btn-nav { grid-row: 1; border-bottom: 2px solid var(--ink); font-size: 0.7rem; }
    .mobile-socials { grid-row: 2; grid-column: 1 / -1; display: flex !important; background-color: var(--ink) !important; color: var(--bg-paper) !important; align-items: center; justify-content: center;}
    .mobile-socials .site-logo { width: 28px; position: static; opacity: 1; filter: invert(1); mix-blend-mode: normal; margin-left: 10px; }
}