* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    font-family: Arial, sans-serif;
    font-size: 15px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

body {
    overflow-x: hidden;
}

.app-container {
    min-height: 100vh;
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
}

/* =========================
   SIDEBAR
   ========================= */

.sidebar {
    min-height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 22px 14px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    z-index: 20;
}

.mobile-sidebar-header {
    display: none;
}

.logo-section {
    text-align: center;
}

.logo-section img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.logo-section h2 {
    margin: 8px 0 0;
    font-size: var(--font-base);
    color: var(--accent-gold);
    text-transform: uppercase;
}

.menu {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.menu a {
    text-decoration: none;
    color: var(--text-primary);
    padding: 12px 14px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-size: var(--font-sm);
}

.menu a:hover,
.menu a.active {
    background: rgba(200, 155, 60, 0.18);
    color: var(--accent-gold);
}

.sidebar-footer {
    margin-top: auto;
    font-size: var(--font-xs);
    color: var(--text-secondary);
    text-align: center;
}

/* =========================
   MAIN
   ========================= */

.main-content {
    min-width: 0;
    padding: 26px 32px;
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 18px;
}

.topbar-title {
    min-width: 0;
    flex: 1;
}

.topbar h1 {
    margin: 0;
    font-size: var(--font-2xl);
    line-height: 1.15;
}

.user-subtitle {
    margin: 7px 0 0;
    color: var(--accent-gold);
    font-size: var(--font-sm);
    font-weight: 600;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-button {
    display: none;
}

.close-menu-button {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    width: 38px;
    height: 38px;
    cursor: pointer;
}

.mobile-overlay {
    display: none;
}

.avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
}

/* =========================
   MOBILE
   ========================= */

@media (max-width: 768px) {
    html,
    body {
        font-size: 14px;
    }

    .app-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: 280px;
        max-width: 86vw;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        border-right: 1px solid var(--border-color);
    }

    .sidebar.is-open {
        transform: translateX(0);
    }

    .mobile-sidebar-header {
        display: flex;
        justify-content: flex-end;
    }

    .mobile-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.55);
        z-index: 10;
    }

    .mobile-overlay.is-visible {
        display: block;
    }

    .mobile-menu-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border-color);
        background: var(--bg-card);
        color: var(--text-primary);
        border-radius: var(--radius-md);
        width: 42px;
        height: 42px;
        cursor: pointer;
        flex-shrink: 0;
    }

    .main-content {
        padding: 16px 12px;
    }

    .topbar {
        align-items: center;
        margin-bottom: 18px;
        gap: 10px;
    }

    .topbar h1 {
        font-size: var(--font-xl);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .user-subtitle {
        font-size: var(--font-xs);
    }

    .topbar-actions {
        gap: 8px;
    }

    .avatar {
        width: 34px;
        height: 34px;
    }
}