:root {
    --primary-blue: #0a3d62;
    --soft-blue: #f0f4f8;
    --accent-blue: #3498db;
    --bg-body: #f8fafc;
    --white: #ffffff;
    --text-main: #334155;
    --sidebar-width: 220px;
    --header-height: 65px;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', 'Segoe UI', sans-serif; }

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    padding: 15px;
    gap: 15px;
    min-height: 100vh;
}

/* --- SIDEBAR FLUTUANTE --- */
aside {
    width: var(--sidebar-width);
    background-color: var(--white);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    border: 1px solid #e2e8f0;
    position: sticky;
    top: 15px;
    height: calc(100vh - 30px);
}

.logo-area {
    padding: 25px 20px;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--primary-blue);
    text-align: center;
    border-bottom: 1px solid #f1f5f9;
}
.logo-area span { color: var(--accent-blue); }

nav { flex: 1; padding: 15px 10px; overflow-y: auto; }

.nav-item {
    padding: 10px 12px;
    margin-bottom: 4px;
    cursor: pointer;
    border-radius: 8px;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 500;
    color: #64748b;
}
.nav-item:hover { background-color: var(--soft-blue); color: var(--primary-blue); }

.submenu { display: none; list-style: none; margin-bottom: 10px; }
.submenu li { padding: 8px 12px 8px 40px; font-size: 0.8rem; color: #94a3b8; cursor: pointer; border-radius: 6px; }
.submenu li:hover { color: var(--accent-blue); background-color: #f8fafc; }

/* --- MAIN CONTENT --- */
main { flex: 1; display: flex; flex-direction: column; gap: 15px; }

header {
    height: var(--header-height);
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    border: 1px solid #e2e8f0;
}

.page-title { font-size: 1rem; font-weight: 600; color: var(--primary-blue); }

.header-right { display: flex; align-items: center; gap: 25px; }

.search-bar {
    background: #f1f5f9;
    padding: 8px 15px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    width: 200px;
}
.search-bar input { border: none; background: transparent; outline: none; font-size: 0.8rem; margin-left: 8px; width: 100%; }

.user-block { display: flex; align-items: center; gap: 12px; }
.user-text { text-align: right; }
.user-name { font-size: 0.85rem; font-weight: 700; color: var(--text-main); display: block; }
.user-role { font-size: 0.75rem; color: #94a3b8; display: block; }

.avatar-box {
    width: 38px; height: 38px; background: #f1f5f9; border-radius: 10px;
    display: flex; align-items: center; justify-content: center; color: #64748b;
}

.card { background: var(--white); padding: 25px; border-radius: 12px; border: 1px solid #e2e8f0; }

footer { text-align: center; font-size: 0.75rem; color: #94a3b8; padding: 10px; margin-top: auto; }

.show { display: block; }