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

body {
    background-color: var(--materialtheme-colorscheme-background);
    color: var(--materialtheme-colorscheme-on-background);
    font-family: 'Roboto', sans-serif;
    height: 100vh;
    overflow: hidden;
}

#app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.nav-rail { display: none; }

.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 80px;
    background: var(--materialtheme-colorscheme-surface-container-low);
    border-top: 1px solid var(--materialtheme-colorscheme-outline-variant);
}

.nav-item {
    color: var(--materialtheme-colorscheme-on-surface-variant);
    cursor: pointer;
    font-size: 24px;
}

.nav-item.active {
    color: var(--materialtheme-colorscheme-primary);
    font-variation-settings: 'FILL' 1;
}

.main-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.top-bar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--materialtheme-colorscheme-surface-container-high);
    padding: 12px 16px;
    border-radius: 28px;
    gap: 12px;
}

.search-box input {
    background: none; border: none; outline: none;
    color: var(--materialtheme-colorscheme-on-surface);
    flex: 1;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.hero-card {
    background: var(--materialtheme-colorscheme-primary-container);
    color: var(--materialtheme-colorscheme-on-primary-container);
    padding: 32px;
    border-radius: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.display-large { font-size: 4rem; }
.icon-display { font-size: 5rem !important; }

.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.metric-card {
    background: var(--materialtheme-colorscheme-surface-container);
    padding: 20px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

@media (min-width: 900px) {
    #app-container { flex-direction: row; }
    .bottom-nav { display: none; }
    .nav-rail {
        display: flex;
        flex-direction: column;
        width: 80px;
        background: var(--materialtheme-colorscheme-surface-container-low);
        padding: 24px 0;
        gap: 40px;
        align-items: center;
        border-right: 1px solid var(--materialtheme-colorscheme-outline-variant);
    }
    .top-bar { flex-direction: row; justify-content: space-between; align-items: center; }
    .dashboard-grid { grid-template-columns: 2fr 1fr; gap: 24px; }
    .metrics-grid { grid-template-columns: 1fr; }
}